./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b3b8bf9cef197469aec7ea347f740588dd59c933 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 14:01:27,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 14:01:27,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 14:01:27,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 14:01:27,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 14:01:27,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 14:01:27,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 14:01:27,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 14:01:27,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 14:01:27,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 14:01:27,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 14:01:27,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 14:01:27,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 14:01:27,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 14:01:27,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 14:01:27,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 14:01:27,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 14:01:27,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 14:01:27,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 14:01:27,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 14:01:27,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 14:01:27,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 14:01:27,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 14:01:27,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 14:01:27,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 14:01:27,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 14:01:27,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 14:01:27,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 14:01:27,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 14:01:27,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 14:01:27,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 14:01:27,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 14:01:27,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 14:01:27,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 14:01:27,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 14:01:27,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 14:01:27,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 14:01:27,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 14:01:27,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 14:01:27,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 14:01:27,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 14:01:27,696 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2020-12-09 14:01:27,718 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 14:01:27,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 14:01:27,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 14:01:27,719 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 14:01:27,720 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 14:01:27,720 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 14:01:27,720 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 14:01:27,720 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 14:01:27,720 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 14:01:27,720 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 14:01:27,721 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 14:01:27,721 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 14:01:27,721 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 14:01:27,721 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 14:01:27,721 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 14:01:27,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 14:01:27,722 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 14:01:27,722 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 14:01:27,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 14:01:27,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 14:01:27,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 14:01:27,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 14:01:27,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 14:01:27,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 14:01:27,724 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-09 14:01:27,724 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 14:01:27,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 14:01:27,724 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 14:01:27,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 14:01:27,724 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 14:01:27,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 14:01:27,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 14:01:27,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 14:01:27,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 14:01:27,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 14:01:27,725 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 14:01:27,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 14:01:27,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 14:01:27,726 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 14:01:27,726 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 14:01:27,726 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3b8bf9cef197469aec7ea347f740588dd59c933 [2020-12-09 14:01:27,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 14:01:27,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 14:01:27,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 14:01:27,937 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 14:01:27,938 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 14:01:27,941 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2020-12-09 14:01:27,980 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/data/b4bc58de8/f1da5ab8e18a498e9aec243b2a94d09d/FLAGf1bc58f5e [2020-12-09 14:01:28,364 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 14:01:28,365 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2020-12-09 14:01:28,372 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/data/b4bc58de8/f1da5ab8e18a498e9aec243b2a94d09d/FLAGf1bc58f5e [2020-12-09 14:01:28,383 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/data/b4bc58de8/f1da5ab8e18a498e9aec243b2a94d09d [2020-12-09 14:01:28,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 14:01:28,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 14:01:28,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 14:01:28,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 14:01:28,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 14:01:28,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:01:28" (1/1) ... [2020-12-09 14:01:28,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2db49190 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:01:28, skipping insertion in model container [2020-12-09 14:01:28,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:01:28" (1/1) ... [2020-12-09 14:01:28,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 14:01:28,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 14:01:28,529 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[423,436] [2020-12-09 14:01:28,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:01:28,567 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 14:01:28,576 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[423,436] [2020-12-09 14:01:28,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:01:28,605 INFO L208 MainTranslator]: Completed translation [2020-12-09 14:01:28,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:01:28 WrapperNode [2020-12-09 14:01:28,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 14:01:28,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 14:01:28,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 14:01:28,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 14:01:28,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:01:28" (1/1) ... [2020-12-09 14:01:28,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:01:28" (1/1) ... [2020-12-09 14:01:28,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 14:01:28,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 14:01:28,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 14:01:28,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 14:01:28,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:01:28" (1/1) ... [2020-12-09 14:01:28,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:01:28" (1/1) ... [2020-12-09 14:01:28,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:01:28" (1/1) ... [2020-12-09 14:01:28,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:01:28" (1/1) ... [2020-12-09 14:01:28,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:01:28" (1/1) ... [2020-12-09 14:01:28,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:01:28" (1/1) ... [2020-12-09 14:01:28,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:01:28" (1/1) ... [2020-12-09 14:01:28,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 14:01:28,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 14:01:28,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 14:01:28,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 14:01:28,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:01:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 14:01:28,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 14:01:28,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 14:01:28,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 14:01:28,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 14:01:29,300 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 14:01:29,300 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-09 14:01:29,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:01:29 BoogieIcfgContainer [2020-12-09 14:01:29,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 14:01:29,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 14:01:29,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 14:01:29,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 14:01:29,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:01:28" (1/3) ... [2020-12-09 14:01:29,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f302d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:01:29, skipping insertion in model container [2020-12-09 14:01:29,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:01:28" (2/3) ... [2020-12-09 14:01:29,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f302d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:01:29, skipping insertion in model container [2020-12-09 14:01:29,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:01:29" (3/3) ... [2020-12-09 14:01:29,310 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_3a.c.cil.c [2020-12-09 14:01:29,323 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 14:01:29,326 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2020-12-09 14:01:29,336 INFO L253 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2020-12-09 14:01:29,359 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 14:01:29,359 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 14:01:29,360 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 14:01:29,360 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 14:01:29,360 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 14:01:29,360 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 14:01:29,360 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 14:01:29,360 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 14:01:29,374 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states. [2020-12-09 14:01:29,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 14:01:29,377 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:29,378 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 14:01:29,378 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:29,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:29,382 INFO L82 PathProgramCache]: Analyzing trace with hash -108231699, now seen corresponding path program 1 times [2020-12-09 14:01:29,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:29,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042197827] [2020-12-09 14:01:29,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:29,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:29,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042197827] [2020-12-09 14:01:29,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:01:29,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 14:01:29,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872231080] [2020-12-09 14:01:29,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 14:01:29,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:29,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 14:01:29,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 14:01:29,506 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 2 states. [2020-12-09 14:01:29,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:29,526 INFO L93 Difference]: Finished difference Result 225 states and 293 transitions. [2020-12-09 14:01:29,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 14:01:29,527 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-09 14:01:29,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:29,534 INFO L225 Difference]: With dead ends: 225 [2020-12-09 14:01:29,534 INFO L226 Difference]: Without dead ends: 118 [2020-12-09 14:01:29,536 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 14:01:29,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-12-09 14:01:29,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2020-12-09 14:01:29,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-12-09 14:01:29,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 142 transitions. [2020-12-09 14:01:29,571 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 142 transitions. Word has length 6 [2020-12-09 14:01:29,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:29,571 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 142 transitions. [2020-12-09 14:01:29,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 14:01:29,571 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 142 transitions. [2020-12-09 14:01:29,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 14:01:29,572 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:29,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 14:01:29,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 14:01:29,573 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:29,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:29,573 INFO L82 PathProgramCache]: Analyzing trace with hash -109518925, now seen corresponding path program 1 times [2020-12-09 14:01:29,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:29,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391886449] [2020-12-09 14:01:29,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:29,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:29,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391886449] [2020-12-09 14:01:29,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:01:29,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 14:01:29,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577154427] [2020-12-09 14:01:29,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 14:01:29,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:29,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 14:01:29,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:01:29,621 INFO L87 Difference]: Start difference. First operand 118 states and 142 transitions. Second operand 3 states. [2020-12-09 14:01:29,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:29,748 INFO L93 Difference]: Finished difference Result 246 states and 300 transitions. [2020-12-09 14:01:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 14:01:29,748 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-09 14:01:29,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:29,750 INFO L225 Difference]: With dead ends: 246 [2020-12-09 14:01:29,750 INFO L226 Difference]: Without dead ends: 144 [2020-12-09 14:01:29,752 INFO L677 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 [2020-12-09 14:01:29,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-12-09 14:01:29,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2020-12-09 14:01:29,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-12-09 14:01:29,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 168 transitions. [2020-12-09 14:01:29,764 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 168 transitions. Word has length 6 [2020-12-09 14:01:29,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:29,765 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 168 transitions. [2020-12-09 14:01:29,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 14:01:29,765 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 168 transitions. [2020-12-09 14:01:29,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 14:01:29,766 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:29,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:29,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 14:01:29,766 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:29,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:29,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1184342839, now seen corresponding path program 1 times [2020-12-09 14:01:29,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:29,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178026859] [2020-12-09 14:01:29,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:29,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:29,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178026859] [2020-12-09 14:01:29,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:01:29,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 14:01:29,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142437269] [2020-12-09 14:01:29,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 14:01:29,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:29,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 14:01:29,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 14:01:29,803 INFO L87 Difference]: Start difference. First operand 142 states and 168 transitions. Second operand 4 states. [2020-12-09 14:01:29,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:29,898 INFO L93 Difference]: Finished difference Result 190 states and 221 transitions. [2020-12-09 14:01:29,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 14:01:29,899 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-09 14:01:29,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:29,900 INFO L225 Difference]: With dead ends: 190 [2020-12-09 14:01:29,900 INFO L226 Difference]: Without dead ends: 180 [2020-12-09 14:01:29,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 14:01:29,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-12-09 14:01:29,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 143. [2020-12-09 14:01:29,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-12-09 14:01:29,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 170 transitions. [2020-12-09 14:01:29,909 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 170 transitions. Word has length 10 [2020-12-09 14:01:29,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:29,910 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 170 transitions. [2020-12-09 14:01:29,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 14:01:29,910 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 170 transitions. [2020-12-09 14:01:29,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 14:01:29,910 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:29,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:29,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 14:01:29,911 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:29,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:29,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1940077446, now seen corresponding path program 1 times [2020-12-09 14:01:29,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:29,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224677177] [2020-12-09 14:01:29,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:29,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:29,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224677177] [2020-12-09 14:01:29,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:01:29,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 14:01:29,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845702751] [2020-12-09 14:01:29,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 14:01:29,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:29,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 14:01:29,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:01:29,938 INFO L87 Difference]: Start difference. First operand 143 states and 170 transitions. Second operand 3 states. [2020-12-09 14:01:30,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:30,002 INFO L93 Difference]: Finished difference Result 180 states and 207 transitions. [2020-12-09 14:01:30,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 14:01:30,003 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-09 14:01:30,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:30,004 INFO L225 Difference]: With dead ends: 180 [2020-12-09 14:01:30,004 INFO L226 Difference]: Without dead ends: 172 [2020-12-09 14:01:30,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:01:30,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-12-09 14:01:30,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 129. [2020-12-09 14:01:30,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-12-09 14:01:30,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 156 transitions. [2020-12-09 14:01:30,013 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 156 transitions. Word has length 11 [2020-12-09 14:01:30,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:30,013 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 156 transitions. [2020-12-09 14:01:30,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 14:01:30,013 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 156 transitions. [2020-12-09 14:01:30,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 14:01:30,014 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:30,014 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:30,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 14:01:30,015 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:30,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:30,015 INFO L82 PathProgramCache]: Analyzing trace with hash -284427539, now seen corresponding path program 1 times [2020-12-09 14:01:30,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:30,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494351382] [2020-12-09 14:01:30,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:30,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:30,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494351382] [2020-12-09 14:01:30,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:01:30,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 14:01:30,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382424713] [2020-12-09 14:01:30,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 14:01:30,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:30,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 14:01:30,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 14:01:30,047 INFO L87 Difference]: Start difference. First operand 129 states and 156 transitions. Second operand 4 states. [2020-12-09 14:01:30,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:30,157 INFO L93 Difference]: Finished difference Result 292 states and 344 transitions. [2020-12-09 14:01:30,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 14:01:30,158 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-09 14:01:30,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:30,159 INFO L225 Difference]: With dead ends: 292 [2020-12-09 14:01:30,159 INFO L226 Difference]: Without dead ends: 190 [2020-12-09 14:01:30,160 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 14:01:30,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-12-09 14:01:30,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 139. [2020-12-09 14:01:30,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-12-09 14:01:30,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 168 transitions. [2020-12-09 14:01:30,167 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 168 transitions. Word has length 11 [2020-12-09 14:01:30,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:30,167 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 168 transitions. [2020-12-09 14:01:30,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 14:01:30,168 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 168 transitions. [2020-12-09 14:01:30,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 14:01:30,168 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:30,169 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:30,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 14:01:30,169 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:30,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:30,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1339074167, now seen corresponding path program 1 times [2020-12-09 14:01:30,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:30,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425231754] [2020-12-09 14:01:30,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:30,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:30,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425231754] [2020-12-09 14:01:30,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:01:30,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 14:01:30,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460237074] [2020-12-09 14:01:30,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 14:01:30,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:30,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 14:01:30,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:01:30,207 INFO L87 Difference]: Start difference. First operand 139 states and 168 transitions. Second operand 3 states. [2020-12-09 14:01:30,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:30,254 INFO L93 Difference]: Finished difference Result 215 states and 257 transitions. [2020-12-09 14:01:30,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 14:01:30,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-12-09 14:01:30,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:30,256 INFO L225 Difference]: With dead ends: 215 [2020-12-09 14:01:30,256 INFO L226 Difference]: Without dead ends: 128 [2020-12-09 14:01:30,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:01:30,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-12-09 14:01:30,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-12-09 14:01:30,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-12-09 14:01:30,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 152 transitions. [2020-12-09 14:01:30,261 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 152 transitions. Word has length 12 [2020-12-09 14:01:30,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:30,261 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 152 transitions. [2020-12-09 14:01:30,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 14:01:30,261 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 152 transitions. [2020-12-09 14:01:30,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 14:01:30,262 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:30,262 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:30,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-09 14:01:30,262 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:30,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:30,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1845971037, now seen corresponding path program 1 times [2020-12-09 14:01:30,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:30,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562982831] [2020-12-09 14:01:30,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:30,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:30,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562982831] [2020-12-09 14:01:30,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317844262] [2020-12-09 14:01:30,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:01:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:30,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 14:01:30,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:01:30,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:30,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:01:30,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:30,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-12-09 14:01:30,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [2] total 7 [2020-12-09 14:01:30,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524148039] [2020-12-09 14:01:30,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 14:01:30,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:30,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 14:01:30,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-09 14:01:30,392 INFO L87 Difference]: Start difference. First operand 128 states and 152 transitions. Second operand 6 states. [2020-12-09 14:01:30,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:30,494 INFO L93 Difference]: Finished difference Result 232 states and 261 transitions. [2020-12-09 14:01:30,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 14:01:30,495 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-12-09 14:01:30,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:30,497 INFO L225 Difference]: With dead ends: 232 [2020-12-09 14:01:30,497 INFO L226 Difference]: Without dead ends: 229 [2020-12-09 14:01:30,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-09 14:01:30,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-12-09 14:01:30,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 124. [2020-12-09 14:01:30,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-12-09 14:01:30,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 148 transitions. [2020-12-09 14:01:30,504 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 148 transitions. Word has length 12 [2020-12-09 14:01:30,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:30,505 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 148 transitions. [2020-12-09 14:01:30,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 14:01:30,505 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 148 transitions. [2020-12-09 14:01:30,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 14:01:30,506 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:30,506 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:30,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-09 14:01:30,708 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:30,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:30,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1328963549, now seen corresponding path program 1 times [2020-12-09 14:01:30,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:30,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705964818] [2020-12-09 14:01:30,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:30,806 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-09 14:01:30,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705964818] [2020-12-09 14:01:30,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:01:30,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 14:01:30,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140354227] [2020-12-09 14:01:30,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 14:01:30,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:30,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 14:01:30,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 14:01:30,812 INFO L87 Difference]: Start difference. First operand 124 states and 148 transitions. Second operand 4 states. [2020-12-09 14:01:30,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:30,954 INFO L93 Difference]: Finished difference Result 202 states and 229 transitions. [2020-12-09 14:01:30,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 14:01:30,954 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-09 14:01:30,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:30,955 INFO L225 Difference]: With dead ends: 202 [2020-12-09 14:01:30,955 INFO L226 Difference]: Without dead ends: 198 [2020-12-09 14:01:30,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 14:01:30,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-12-09 14:01:30,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 122. [2020-12-09 14:01:30,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-12-09 14:01:30,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 147 transitions. [2020-12-09 14:01:30,960 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 147 transitions. Word has length 16 [2020-12-09 14:01:30,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:30,960 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 147 transitions. [2020-12-09 14:01:30,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 14:01:30,960 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 147 transitions. [2020-12-09 14:01:30,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 14:01:30,961 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:30,961 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:30,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-09 14:01:30,962 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:30,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:30,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1726073553, now seen corresponding path program 1 times [2020-12-09 14:01:30,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:30,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575686790] [2020-12-09 14:01:30,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:30,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:31,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:31,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575686790] [2020-12-09 14:01:31,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:01:31,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 14:01:31,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411967123] [2020-12-09 14:01:31,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 14:01:31,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:31,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 14:01:31,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 14:01:31,007 INFO L87 Difference]: Start difference. First operand 122 states and 147 transitions. Second operand 4 states. [2020-12-09 14:01:31,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:31,069 INFO L93 Difference]: Finished difference Result 224 states and 266 transitions. [2020-12-09 14:01:31,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 14:01:31,070 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-12-09 14:01:31,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:31,070 INFO L225 Difference]: With dead ends: 224 [2020-12-09 14:01:31,070 INFO L226 Difference]: Without dead ends: 117 [2020-12-09 14:01:31,071 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 14:01:31,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-12-09 14:01:31,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 114. [2020-12-09 14:01:31,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-12-09 14:01:31,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 134 transitions. [2020-12-09 14:01:31,075 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 134 transitions. Word has length 21 [2020-12-09 14:01:31,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:31,076 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 134 transitions. [2020-12-09 14:01:31,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 14:01:31,079 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 134 transitions. [2020-12-09 14:01:31,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-09 14:01:31,080 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:31,080 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:31,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-09 14:01:31,080 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:31,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:31,081 INFO L82 PathProgramCache]: Analyzing trace with hash -292509912, now seen corresponding path program 1 times [2020-12-09 14:01:31,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:31,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934854365] [2020-12-09 14:01:31,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:31,115 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:31,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934854365] [2020-12-09 14:01:31,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591717862] [2020-12-09 14:01:31,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:01:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:31,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 14:01:31,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:01:31,178 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:31,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:01:31,215 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:31,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2074956761] [2020-12-09 14:01:31,231 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2020-12-09 14:01:31,231 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 14:01:31,234 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 14:01:31,238 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 14:01:31,238 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 14:01:31,596 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 14:01:31,717 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 14:01:31,867 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 14:01:32,009 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 14:01:32,144 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-12-09 14:01:32,268 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-12-09 14:01:32,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-09 14:01:32,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [5, 5, 5] total 21 [2020-12-09 14:01:32,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132705393] [2020-12-09 14:01:32,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-09 14:01:32,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:32,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-09 14:01:32,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2020-12-09 14:01:32,750 INFO L87 Difference]: Start difference. First operand 114 states and 134 transitions. Second operand 14 states. [2020-12-09 14:01:33,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:33,341 INFO L93 Difference]: Finished difference Result 269 states and 318 transitions. [2020-12-09 14:01:33,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-09 14:01:33,342 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 25 [2020-12-09 14:01:33,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:33,343 INFO L225 Difference]: With dead ends: 269 [2020-12-09 14:01:33,343 INFO L226 Difference]: Without dead ends: 155 [2020-12-09 14:01:33,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 56 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2020-12-09 14:01:33,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-12-09 14:01:33,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 117. [2020-12-09 14:01:33,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-12-09 14:01:33,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 141 transitions. [2020-12-09 14:01:33,349 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 141 transitions. Word has length 25 [2020-12-09 14:01:33,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:33,350 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 141 transitions. [2020-12-09 14:01:33,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-09 14:01:33,350 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 141 transitions. [2020-12-09 14:01:33,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-09 14:01:33,350 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:33,351 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:33,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-09 14:01:33,551 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:33,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:33,552 INFO L82 PathProgramCache]: Analyzing trace with hash -756926954, now seen corresponding path program 1 times [2020-12-09 14:01:33,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:33,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220536013] [2020-12-09 14:01:33,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:33,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:33,584 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-09 14:01:33,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220536013] [2020-12-09 14:01:33,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:01:33,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 14:01:33,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314361035] [2020-12-09 14:01:33,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 14:01:33,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:33,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 14:01:33,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 14:01:33,586 INFO L87 Difference]: Start difference. First operand 117 states and 141 transitions. Second operand 4 states. [2020-12-09 14:01:33,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:33,633 INFO L93 Difference]: Finished difference Result 150 states and 175 transitions. [2020-12-09 14:01:33,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 14:01:33,634 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-12-09 14:01:33,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:33,635 INFO L225 Difference]: With dead ends: 150 [2020-12-09 14:01:33,635 INFO L226 Difference]: Without dead ends: 148 [2020-12-09 14:01:33,635 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 14:01:33,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-12-09 14:01:33,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 106. [2020-12-09 14:01:33,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-12-09 14:01:33,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 127 transitions. [2020-12-09 14:01:33,641 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 127 transitions. Word has length 25 [2020-12-09 14:01:33,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:33,641 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 127 transitions. [2020-12-09 14:01:33,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 14:01:33,641 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 127 transitions. [2020-12-09 14:01:33,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-09 14:01:33,642 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:33,642 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:33,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-09 14:01:33,642 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:33,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:33,642 INFO L82 PathProgramCache]: Analyzing trace with hash -578808819, now seen corresponding path program 1 times [2020-12-09 14:01:33,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:33,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709421324] [2020-12-09 14:01:33,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:33,669 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:33,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709421324] [2020-12-09 14:01:33,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985768555] [2020-12-09 14:01:33,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:01:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:33,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 14:01:33,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:01:33,740 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:33,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:01:33,781 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:33,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [106336794] [2020-12-09 14:01:33,783 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2020-12-09 14:01:33,783 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 14:01:33,783 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 14:01:33,784 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 14:01:33,784 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 14:01:33,969 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 14:01:34,080 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 14:01:35,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-09 14:01:35,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [5, 5, 5] total 23 [2020-12-09 14:01:35,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935244725] [2020-12-09 14:01:35,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-09 14:01:35,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:35,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-09 14:01:35,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2020-12-09 14:01:35,068 INFO L87 Difference]: Start difference. First operand 106 states and 127 transitions. Second operand 16 states. [2020-12-09 14:01:35,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:35,651 INFO L93 Difference]: Finished difference Result 214 states and 239 transitions. [2020-12-09 14:01:35,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-09 14:01:35,652 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 26 [2020-12-09 14:01:35,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:35,653 INFO L225 Difference]: With dead ends: 214 [2020-12-09 14:01:35,653 INFO L226 Difference]: Without dead ends: 212 [2020-12-09 14:01:35,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 56 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2020-12-09 14:01:35,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-12-09 14:01:35,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 108. [2020-12-09 14:01:35,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-12-09 14:01:35,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 129 transitions. [2020-12-09 14:01:35,662 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 129 transitions. Word has length 26 [2020-12-09 14:01:35,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:35,663 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 129 transitions. [2020-12-09 14:01:35,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-09 14:01:35,663 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 129 transitions. [2020-12-09 14:01:35,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-09 14:01:35,663 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:35,663 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:35,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-12-09 14:01:35,864 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:35,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:35,865 INFO L82 PathProgramCache]: Analyzing trace with hash 293904436, now seen corresponding path program 1 times [2020-12-09 14:01:35,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:35,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282109664] [2020-12-09 14:01:35,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:35,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:35,917 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:35,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282109664] [2020-12-09 14:01:35,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503054876] [2020-12-09 14:01:35,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:01:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:35,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-09 14:01:35,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:01:36,000 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-09 14:01:36,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:01:36,148 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-09 14:01:36,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-12-09 14:01:36,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 4] imperfect sequences [5] total 12 [2020-12-09 14:01:36,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168379419] [2020-12-09 14:01:36,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 14:01:36,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:36,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 14:01:36,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-12-09 14:01:36,150 INFO L87 Difference]: Start difference. First operand 108 states and 129 transitions. Second operand 9 states. [2020-12-09 14:01:36,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:36,298 INFO L93 Difference]: Finished difference Result 169 states and 198 transitions. [2020-12-09 14:01:36,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-09 14:01:36,298 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-12-09 14:01:36,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:36,299 INFO L225 Difference]: With dead ends: 169 [2020-12-09 14:01:36,299 INFO L226 Difference]: Without dead ends: 132 [2020-12-09 14:01:36,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-12-09 14:01:36,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-12-09 14:01:36,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 128. [2020-12-09 14:01:36,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-12-09 14:01:36,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 151 transitions. [2020-12-09 14:01:36,306 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 151 transitions. Word has length 26 [2020-12-09 14:01:36,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:36,306 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 151 transitions. [2020-12-09 14:01:36,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 14:01:36,306 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 151 transitions. [2020-12-09 14:01:36,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-09 14:01:36,307 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:36,307 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:36,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:01:36,508 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:36,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:36,508 INFO L82 PathProgramCache]: Analyzing trace with hash 289724889, now seen corresponding path program 1 times [2020-12-09 14:01:36,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:36,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300243989] [2020-12-09 14:01:36,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:36,605 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-09 14:01:36,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300243989] [2020-12-09 14:01:36,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:01:36,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 14:01:36,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471699066] [2020-12-09 14:01:36,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 14:01:36,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:36,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 14:01:36,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 14:01:36,613 INFO L87 Difference]: Start difference. First operand 128 states and 151 transitions. Second operand 4 states. [2020-12-09 14:01:36,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:36,687 INFO L93 Difference]: Finished difference Result 163 states and 188 transitions. [2020-12-09 14:01:36,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 14:01:36,688 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-12-09 14:01:36,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:36,689 INFO L225 Difference]: With dead ends: 163 [2020-12-09 14:01:36,689 INFO L226 Difference]: Without dead ends: 151 [2020-12-09 14:01:36,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 14:01:36,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-12-09 14:01:36,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 108. [2020-12-09 14:01:36,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-12-09 14:01:36,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2020-12-09 14:01:36,698 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 26 [2020-12-09 14:01:36,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:36,698 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2020-12-09 14:01:36,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 14:01:36,698 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2020-12-09 14:01:36,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-09 14:01:36,699 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:36,699 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:36,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-12-09 14:01:36,699 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:36,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:36,700 INFO L82 PathProgramCache]: Analyzing trace with hash 140201249, now seen corresponding path program 1 times [2020-12-09 14:01:36,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:36,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001667209] [2020-12-09 14:01:36,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:36,725 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-09 14:01:36,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001667209] [2020-12-09 14:01:36,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:01:36,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 14:01:36,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243877343] [2020-12-09 14:01:36,726 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 14:01:36,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:36,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 14:01:36,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 14:01:36,727 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand 4 states. [2020-12-09 14:01:36,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:36,767 INFO L93 Difference]: Finished difference Result 141 states and 156 transitions. [2020-12-09 14:01:36,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 14:01:36,767 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-12-09 14:01:36,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:36,768 INFO L225 Difference]: With dead ends: 141 [2020-12-09 14:01:36,768 INFO L226 Difference]: Without dead ends: 120 [2020-12-09 14:01:36,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 14:01:36,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-12-09 14:01:36,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 82. [2020-12-09 14:01:36,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-12-09 14:01:36,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2020-12-09 14:01:36,775 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 28 [2020-12-09 14:01:36,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:36,775 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2020-12-09 14:01:36,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 14:01:36,775 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2020-12-09 14:01:36,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-09 14:01:36,776 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:36,776 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:36,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-12-09 14:01:36,776 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:36,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:36,777 INFO L82 PathProgramCache]: Analyzing trace with hash 34936202, now seen corresponding path program 1 times [2020-12-09 14:01:36,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:36,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073309102] [2020-12-09 14:01:36,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:36,807 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:36,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073309102] [2020-12-09 14:01:36,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386783793] [2020-12-09 14:01:36,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:01:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:36,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 14:01:36,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:01:36,867 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:36,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:01:36,898 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:36,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [782866869] [2020-12-09 14:01:36,900 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2020-12-09 14:01:36,900 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 14:01:36,901 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 14:01:36,901 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 14:01:36,901 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 14:01:37,099 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 14:01:37,217 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 14:01:37,339 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 14:01:37,458 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 14:01:38,814 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2020-12-09 14:01:38,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-09 14:01:38,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [5, 5, 5] total 27 [2020-12-09 14:01:38,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177034772] [2020-12-09 14:01:38,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-09 14:01:38,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:38,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-09 14:01:38,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=559, Unknown=0, NotChecked=0, Total=702 [2020-12-09 14:01:38,929 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand 20 states. [2020-12-09 14:01:39,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:39,466 INFO L93 Difference]: Finished difference Result 138 states and 154 transitions. [2020-12-09 14:01:39,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-09 14:01:39,467 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 33 [2020-12-09 14:01:39,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:39,468 INFO L225 Difference]: With dead ends: 138 [2020-12-09 14:01:39,468 INFO L226 Difference]: Without dead ends: 136 [2020-12-09 14:01:39,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 71 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=154, Invalid=658, Unknown=0, NotChecked=0, Total=812 [2020-12-09 14:01:39,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-12-09 14:01:39,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 100. [2020-12-09 14:01:39,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-12-09 14:01:39,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 116 transitions. [2020-12-09 14:01:39,474 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 116 transitions. Word has length 33 [2020-12-09 14:01:39,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:39,474 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 116 transitions. [2020-12-09 14:01:39,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-09 14:01:39,474 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 116 transitions. [2020-12-09 14:01:39,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-09 14:01:39,475 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:39,475 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:39,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-12-09 14:01:39,677 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:39,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:39,679 INFO L82 PathProgramCache]: Analyzing trace with hash 87376534, now seen corresponding path program 1 times [2020-12-09 14:01:39,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:39,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139839989] [2020-12-09 14:01:39,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:39,747 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:39,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139839989] [2020-12-09 14:01:39,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100284306] [2020-12-09 14:01:39,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:01:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:39,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 14:01:39,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:01:39,838 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:39,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:01:39,893 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:39,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [187783480] [2020-12-09 14:01:39,894 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2020-12-09 14:01:39,895 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 14:01:39,895 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 14:01:39,895 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 14:01:39,895 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 14:01:40,122 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 14:01:40,273 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 14:01:40,427 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 14:01:40,559 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 14:01:42,060 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2020-12-09 14:01:42,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-09 14:01:42,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [5, 5, 5] total 29 [2020-12-09 14:01:42,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084625472] [2020-12-09 14:01:42,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-12-09 14:01:42,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:42,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-12-09 14:01:42,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2020-12-09 14:01:42,222 INFO L87 Difference]: Start difference. First operand 100 states and 116 transitions. Second operand 22 states. [2020-12-09 14:01:42,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:42,690 INFO L93 Difference]: Finished difference Result 153 states and 174 transitions. [2020-12-09 14:01:42,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-09 14:01:42,690 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 34 [2020-12-09 14:01:42,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:42,691 INFO L225 Difference]: With dead ends: 153 [2020-12-09 14:01:42,691 INFO L226 Difference]: Without dead ends: 151 [2020-12-09 14:01:42,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 70 SyntacticMatches, 8 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=126, Invalid=744, Unknown=0, NotChecked=0, Total=870 [2020-12-09 14:01:42,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-12-09 14:01:42,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 97. [2020-12-09 14:01:42,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-09 14:01:42,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 112 transitions. [2020-12-09 14:01:42,697 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 112 transitions. Word has length 34 [2020-12-09 14:01:42,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:42,697 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 112 transitions. [2020-12-09 14:01:42,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-12-09 14:01:42,697 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 112 transitions. [2020-12-09 14:01:42,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-09 14:01:42,697 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:42,697 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:42,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:01:42,900 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:42,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:42,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1005048044, now seen corresponding path program 1 times [2020-12-09 14:01:42,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:42,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947870065] [2020-12-09 14:01:42,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:42,959 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:42,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947870065] [2020-12-09 14:01:42,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217337644] [2020-12-09 14:01:42,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:01:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:42,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 14:01:42,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:01:43,019 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:43,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:01:43,056 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:43,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1526128632] [2020-12-09 14:01:43,058 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2020-12-09 14:01:43,059 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 14:01:43,059 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 14:01:43,059 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 14:01:43,059 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 14:01:43,232 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 14:01:43,347 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 14:01:43,472 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 14:01:43,596 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 14:01:45,135 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2020-12-09 14:01:45,314 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2020-12-09 14:01:45,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-09 14:01:45,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [5, 5, 5] total 29 [2020-12-09 14:01:45,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023671132] [2020-12-09 14:01:45,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-12-09 14:01:45,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:45,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-12-09 14:01:45,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=679, Unknown=0, NotChecked=0, Total=812 [2020-12-09 14:01:45,367 INFO L87 Difference]: Start difference. First operand 97 states and 112 transitions. Second operand 22 states. [2020-12-09 14:01:45,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:45,969 INFO L93 Difference]: Finished difference Result 183 states and 204 transitions. [2020-12-09 14:01:45,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-12-09 14:01:45,970 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 35 [2020-12-09 14:01:45,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:45,971 INFO L225 Difference]: With dead ends: 183 [2020-12-09 14:01:45,971 INFO L226 Difference]: Without dead ends: 182 [2020-12-09 14:01:45,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 75 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=144, Invalid=786, Unknown=0, NotChecked=0, Total=930 [2020-12-09 14:01:45,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-12-09 14:01:45,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 115. [2020-12-09 14:01:45,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-09 14:01:45,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2020-12-09 14:01:45,978 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 35 [2020-12-09 14:01:45,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:45,978 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2020-12-09 14:01:45,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-12-09 14:01:45,978 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2020-12-09 14:01:45,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-09 14:01:45,979 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:45,979 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:46,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:01:46,181 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:46,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:46,182 INFO L82 PathProgramCache]: Analyzing trace with hash 429607860, now seen corresponding path program 1 times [2020-12-09 14:01:46,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:46,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77148598] [2020-12-09 14:01:46,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:46,237 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:46,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77148598] [2020-12-09 14:01:46,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510081254] [2020-12-09 14:01:46,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:01:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:46,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 14:01:46,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:01:46,295 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:46,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:01:46,333 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:46,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2041336490] [2020-12-09 14:01:46,335 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2020-12-09 14:01:46,335 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 14:01:46,335 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 14:01:46,335 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 14:01:46,335 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 14:01:46,502 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 14:01:46,713 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 14:01:46,854 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 14:01:46,991 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 14:01:48,599 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-12-09 14:01:48,818 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-12-09 14:01:48,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-09 14:01:48,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [5, 5, 5] total 29 [2020-12-09 14:01:48,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082033511] [2020-12-09 14:01:48,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-12-09 14:01:48,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:48,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-12-09 14:01:48,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=661, Unknown=0, NotChecked=0, Total=812 [2020-12-09 14:01:48,877 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand 22 states. [2020-12-09 14:01:49,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:49,633 INFO L93 Difference]: Finished difference Result 167 states and 190 transitions. [2020-12-09 14:01:49,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-12-09 14:01:49,633 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 35 [2020-12-09 14:01:49,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:49,634 INFO L225 Difference]: With dead ends: 167 [2020-12-09 14:01:49,634 INFO L226 Difference]: Without dead ends: 166 [2020-12-09 14:01:49,635 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 75 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=162, Invalid=768, Unknown=0, NotChecked=0, Total=930 [2020-12-09 14:01:49,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-12-09 14:01:49,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 124. [2020-12-09 14:01:49,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-12-09 14:01:49,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 147 transitions. [2020-12-09 14:01:49,642 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 147 transitions. Word has length 35 [2020-12-09 14:01:49,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:49,642 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 147 transitions. [2020-12-09 14:01:49,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-12-09 14:01:49,642 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 147 transitions. [2020-12-09 14:01:49,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-09 14:01:49,643 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:49,643 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:49,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2020-12-09 14:01:49,845 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:49,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:49,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1402654773, now seen corresponding path program 1 times [2020-12-09 14:01:49,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:49,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141983867] [2020-12-09 14:01:49,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:49,904 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:49,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141983867] [2020-12-09 14:01:49,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748945149] [2020-12-09 14:01:49,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:01:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:49,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 14:01:49,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:01:49,963 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:49,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:01:49,998 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:49,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1291755650] [2020-12-09 14:01:50,000 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2020-12-09 14:01:50,000 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 14:01:50,000 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 14:01:50,000 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 14:01:50,000 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 14:01:50,168 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 14:01:50,290 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 14:01:50,409 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 14:01:50,534 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 14:01:52,004 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2020-12-09 14:01:52,352 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 77 [2020-12-09 14:01:52,697 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 85 [2020-12-09 14:01:52,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-09 14:01:52,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [5, 5, 5] total 29 [2020-12-09 14:01:52,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432151024] [2020-12-09 14:01:52,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-12-09 14:01:52,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:52,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-12-09 14:01:52,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=640, Unknown=0, NotChecked=0, Total=812 [2020-12-09 14:01:52,699 INFO L87 Difference]: Start difference. First operand 124 states and 147 transitions. Second operand 22 states. [2020-12-09 14:01:53,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:53,265 INFO L93 Difference]: Finished difference Result 165 states and 189 transitions. [2020-12-09 14:01:53,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-12-09 14:01:53,266 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 36 [2020-12-09 14:01:53,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:53,267 INFO L225 Difference]: With dead ends: 165 [2020-12-09 14:01:53,267 INFO L226 Difference]: Without dead ends: 163 [2020-12-09 14:01:53,267 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 77 SyntacticMatches, 7 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=183, Invalid=747, Unknown=0, NotChecked=0, Total=930 [2020-12-09 14:01:53,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-12-09 14:01:53,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 133. [2020-12-09 14:01:53,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-12-09 14:01:53,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 157 transitions. [2020-12-09 14:01:53,276 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 157 transitions. Word has length 36 [2020-12-09 14:01:53,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:53,276 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 157 transitions. [2020-12-09 14:01:53,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-12-09 14:01:53,276 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 157 transitions. [2020-12-09 14:01:53,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-09 14:01:53,276 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:53,276 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:53,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:01:53,478 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:53,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:53,479 INFO L82 PathProgramCache]: Analyzing trace with hash 2145470752, now seen corresponding path program 1 times [2020-12-09 14:01:53,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:53,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776820366] [2020-12-09 14:01:53,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:53,532 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:53,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776820366] [2020-12-09 14:01:53,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699731208] [2020-12-09 14:01:53,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:01:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:53,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 14:01:53,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:01:53,616 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:53,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:01:53,666 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:53,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1011138939] [2020-12-09 14:01:53,668 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2020-12-09 14:01:53,668 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 14:01:53,668 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 14:01:53,668 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 14:01:53,668 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 14:01:53,853 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 14:01:53,989 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 14:01:54,140 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 14:01:54,281 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 14:01:55,963 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2020-12-09 14:01:56,148 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2020-12-09 14:01:56,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-09 14:01:56,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [5, 5, 5] total 31 [2020-12-09 14:01:56,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221666462] [2020-12-09 14:01:56,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-09 14:01:56,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:01:56,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-09 14:01:56,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=808, Unknown=0, NotChecked=0, Total=930 [2020-12-09 14:01:56,236 INFO L87 Difference]: Start difference. First operand 133 states and 157 transitions. Second operand 24 states. [2020-12-09 14:01:56,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:56,794 INFO L93 Difference]: Finished difference Result 205 states and 229 transitions. [2020-12-09 14:01:56,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-12-09 14:01:56,795 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 36 [2020-12-09 14:01:56,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:56,796 INFO L225 Difference]: With dead ends: 205 [2020-12-09 14:01:56,796 INFO L226 Difference]: Without dead ends: 204 [2020-12-09 14:01:56,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 74 SyntacticMatches, 8 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=128, Invalid=864, Unknown=0, NotChecked=0, Total=992 [2020-12-09 14:01:56,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-12-09 14:01:56,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 133. [2020-12-09 14:01:56,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-12-09 14:01:56,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 157 transitions. [2020-12-09 14:01:56,804 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 157 transitions. Word has length 36 [2020-12-09 14:01:56,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:56,805 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 157 transitions. [2020-12-09 14:01:56,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-12-09 14:01:56,805 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 157 transitions. [2020-12-09 14:01:56,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-09 14:01:56,805 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:56,805 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:57,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:01:57,006 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:01:57,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:57,006 INFO L82 PathProgramCache]: Analyzing trace with hash -714840640, now seen corresponding path program 1 times [2020-12-09 14:01:57,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:01:57,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439348677] [2020-12-09 14:01:57,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:01:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:57,048 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:57,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439348677] [2020-12-09 14:01:57,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924125951] [2020-12-09 14:01:57,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/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 [2020-12-09 14:01:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:57,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 14:01:57,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:01:57,127 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:57,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:01:57,187 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:57,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1086079169] [2020-12-09 14:01:57,189 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2020-12-09 14:01:57,189 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 14:01:57,189 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 14:01:57,189 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 14:01:57,189 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 14:01:57,372 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 14:01:57,521 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 14:01:57,660 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 14:01:57,819 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 14:01:59,273 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-12-09 14:01:59,803 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-12-09 14:02:00,088 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-12-09 14:02:00,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-09 14:02:00,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [5, 5, 5] total 31 [2020-12-09 14:02:00,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358978400] [2020-12-09 14:02:00,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-09 14:02:00,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:02:00,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-09 14:02:00,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=802, Unknown=0, NotChecked=0, Total=930 [2020-12-09 14:02:00,186 INFO L87 Difference]: Start difference. First operand 133 states and 157 transitions. Second operand 24 states. [2020-12-09 14:02:00,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:02:00,789 INFO L93 Difference]: Finished difference Result 189 states and 216 transitions. [2020-12-09 14:02:00,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-12-09 14:02:00,790 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 36 [2020-12-09 14:02:00,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:02:00,792 INFO L225 Difference]: With dead ends: 189 [2020-12-09 14:02:00,792 INFO L226 Difference]: Without dead ends: 188 [2020-12-09 14:02:00,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 74 SyntacticMatches, 8 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=134, Invalid=858, Unknown=0, NotChecked=0, Total=992 [2020-12-09 14:02:00,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-12-09 14:02:00,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 133. [2020-12-09 14:02:00,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-12-09 14:02:00,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 157 transitions. [2020-12-09 14:02:00,800 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 157 transitions. Word has length 36 [2020-12-09 14:02:00,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:02:00,800 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 157 transitions. [2020-12-09 14:02:00,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-12-09 14:02:00,800 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 157 transitions. [2020-12-09 14:02:00,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-09 14:02:00,801 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:02:00,801 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:02:01,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable117 [2020-12-09 14:02:01,003 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:02:01,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:02:01,004 INFO L82 PathProgramCache]: Analyzing trace with hash 516482486, now seen corresponding path program 1 times [2020-12-09 14:02:01,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:02:01,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522785492] [2020-12-09 14:02:01,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:02:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:02:01,033 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:02:01,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522785492] [2020-12-09 14:02:01,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860656556] [2020-12-09 14:02:01,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/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 [2020-12-09 14:02:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:02:01,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 14:02:01,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:02:01,092 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:02:01,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:02:01,129 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:02:01,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [602151627] [2020-12-09 14:02:01,131 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2020-12-09 14:02:01,131 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 14:02:01,131 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 14:02:01,131 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 14:02:01,131 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 14:02:01,298 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 14:02:02,136 WARN L197 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2020-12-09 14:02:02,281 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 14:02:02,439 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 14:02:02,590 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 14:02:04,351 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2020-12-09 14:02:04,563 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2020-12-09 14:02:04,892 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2020-12-09 14:02:04,979 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 14:02:04,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 14:02:04,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2020-12-09 14:02:04,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16186600] [2020-12-09 14:02:04,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 14:02:04,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:02:04,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 14:02:04,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=784, Unknown=0, NotChecked=0, Total=930 [2020-12-09 14:02:04,980 INFO L87 Difference]: Start difference. First operand 133 states and 157 transitions. Second operand 9 states. [2020-12-09 14:02:05,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:02:05,053 INFO L93 Difference]: Finished difference Result 299 states and 347 transitions. [2020-12-09 14:02:05,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 14:02:05,053 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2020-12-09 14:02:05,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:02:05,054 INFO L225 Difference]: With dead ends: 299 [2020-12-09 14:02:05,054 INFO L226 Difference]: Without dead ends: 204 [2020-12-09 14:02:05,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 79 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=146, Invalid=784, Unknown=0, NotChecked=0, Total=930 [2020-12-09 14:02:05,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-12-09 14:02:05,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 153. [2020-12-09 14:02:05,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-12-09 14:02:05,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 181 transitions. [2020-12-09 14:02:05,066 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 181 transitions. Word has length 37 [2020-12-09 14:02:05,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:02:05,066 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 181 transitions. [2020-12-09 14:02:05,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 14:02:05,067 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 181 transitions. [2020-12-09 14:02:05,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-09 14:02:05,067 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:02:05,067 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:02:05,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:02:05,268 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:02:05,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:02:05,270 INFO L82 PathProgramCache]: Analyzing trace with hash 284489641, now seen corresponding path program 1 times [2020-12-09 14:02:05,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:02:05,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946019040] [2020-12-09 14:02:05,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:02:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:02:05,330 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:02:05,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946019040] [2020-12-09 14:02:05,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84491872] [2020-12-09 14:02:05,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/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 [2020-12-09 14:02:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:02:05,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 14:02:05,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:02:05,412 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:02:05,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:02:05,485 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:02:05,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1565433306] [2020-12-09 14:02:05,487 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2020-12-09 14:02:05,487 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 14:02:05,487 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 14:02:05,487 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 14:02:05,487 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 14:02:05,682 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 14:02:05,826 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 14:02:05,977 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 14:02:06,130 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 14:02:07,997 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2020-12-09 14:02:08,432 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 75 [2020-12-09 14:02:08,838 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2020-12-09 14:02:08,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-09 14:02:08,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [5, 5, 5] total 31 [2020-12-09 14:02:08,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697084347] [2020-12-09 14:02:08,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-09 14:02:08,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:02:08,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-09 14:02:08,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=793, Unknown=0, NotChecked=0, Total=930 [2020-12-09 14:02:08,841 INFO L87 Difference]: Start difference. First operand 153 states and 181 transitions. Second operand 24 states. [2020-12-09 14:02:09,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:02:09,416 INFO L93 Difference]: Finished difference Result 187 states and 215 transitions. [2020-12-09 14:02:09,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-12-09 14:02:09,417 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 37 [2020-12-09 14:02:09,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:02:09,417 INFO L225 Difference]: With dead ends: 187 [2020-12-09 14:02:09,418 INFO L226 Difference]: Without dead ends: 185 [2020-12-09 14:02:09,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 76 SyntacticMatches, 9 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=143, Invalid=849, Unknown=0, NotChecked=0, Total=992 [2020-12-09 14:02:09,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-12-09 14:02:09,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 135. [2020-12-09 14:02:09,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-12-09 14:02:09,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 157 transitions. [2020-12-09 14:02:09,429 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 157 transitions. Word has length 37 [2020-12-09 14:02:09,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:02:09,429 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 157 transitions. [2020-12-09 14:02:09,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-12-09 14:02:09,429 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 157 transitions. [2020-12-09 14:02:09,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-09 14:02:09,430 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:02:09,430 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:02:09,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable143 [2020-12-09 14:02:09,631 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:02:09,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:02:09,632 INFO L82 PathProgramCache]: Analyzing trace with hash 213101762, now seen corresponding path program 1 times [2020-12-09 14:02:09,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:02:09,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971522823] [2020-12-09 14:02:09,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:02:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:02:09,704 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:02:09,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971522823] [2020-12-09 14:02:09,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643015833] [2020-12-09 14:02:09,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/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 [2020-12-09 14:02:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:02:09,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 14:02:09,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:02:09,782 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:02:09,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:02:09,841 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:02:09,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [745443566] [2020-12-09 14:02:09,842 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2020-12-09 14:02:09,842 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 14:02:09,842 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 14:02:09,842 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 14:02:09,843 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 14:02:10,030 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 14:02:10,312 WARN L197 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 87 [2020-12-09 14:02:10,462 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 14:02:10,626 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 14:02:10,813 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 14:02:13,137 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2020-12-09 14:02:13,345 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2020-12-09 14:02:13,716 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 79 [2020-12-09 14:02:13,839 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 14:02:13,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 14:02:13,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2020-12-09 14:02:13,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590929593] [2020-12-09 14:02:13,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 14:02:13,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:02:13,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 14:02:13,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=921, Unknown=0, NotChecked=0, Total=1056 [2020-12-09 14:02:13,840 INFO L87 Difference]: Start difference. First operand 135 states and 157 transitions. Second operand 9 states. [2020-12-09 14:02:14,012 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2020-12-09 14:02:14,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:02:14,198 INFO L93 Difference]: Finished difference Result 234 states and 272 transitions. [2020-12-09 14:02:14,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 14:02:14,199 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2020-12-09 14:02:14,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:02:14,200 INFO L225 Difference]: With dead ends: 234 [2020-12-09 14:02:14,200 INFO L226 Difference]: Without dead ends: 136 [2020-12-09 14:02:14,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 78 SyntacticMatches, 8 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=159, Invalid=1031, Unknown=0, NotChecked=0, Total=1190 [2020-12-09 14:02:14,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-12-09 14:02:14,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 135. [2020-12-09 14:02:14,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-12-09 14:02:14,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 153 transitions. [2020-12-09 14:02:14,208 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 153 transitions. Word has length 38 [2020-12-09 14:02:14,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:02:14,208 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 153 transitions. [2020-12-09 14:02:14,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 14:02:14,208 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 153 transitions. [2020-12-09 14:02:14,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-09 14:02:14,208 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:02:14,209 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:02:14,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:02:14,410 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:02:14,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:02:14,411 INFO L82 PathProgramCache]: Analyzing trace with hash 2009422198, now seen corresponding path program 2 times [2020-12-09 14:02:14,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:02:14,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606571132] [2020-12-09 14:02:14,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:02:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:02:14,478 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:02:14,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606571132] [2020-12-09 14:02:14,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009815367] [2020-12-09 14:02:14,478 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/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 [2020-12-09 14:02:14,584 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2020-12-09 14:02:14,584 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 14:02:14,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 14:02:14,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:02:14,634 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:02:14,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:02:14,748 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:02:14,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [530877167] [2020-12-09 14:02:14,749 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2020-12-09 14:02:14,749 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 14:02:14,749 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 14:02:14,749 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 14:02:14,749 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 14:02:14,937 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 14:02:15,252 WARN L197 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2020-12-09 14:02:15,390 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 14:02:15,540 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 14:02:15,700 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 14:02:17,829 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2020-12-09 14:02:18,045 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2020-12-09 14:02:18,390 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2020-12-09 14:02:18,501 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 14:02:18,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 14:02:18,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2020-12-09 14:02:18,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332663553] [2020-12-09 14:02:18,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-09 14:02:18,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:02:18,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-09 14:02:18,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=1204, Unknown=0, NotChecked=0, Total=1482 [2020-12-09 14:02:18,503 INFO L87 Difference]: Start difference. First operand 135 states and 153 transitions. Second operand 17 states. [2020-12-09 14:02:18,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:02:18,626 INFO L93 Difference]: Finished difference Result 337 states and 387 transitions. [2020-12-09 14:02:18,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-09 14:02:18,626 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 57 [2020-12-09 14:02:18,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:02:18,627 INFO L225 Difference]: With dead ends: 337 [2020-12-09 14:02:18,627 INFO L226 Difference]: Without dead ends: 242 [2020-12-09 14:02:18,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 131 SyntacticMatches, 10 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 974 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=278, Invalid=1204, Unknown=0, NotChecked=0, Total=1482 [2020-12-09 14:02:18,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-12-09 14:02:18,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 175. [2020-12-09 14:02:18,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-12-09 14:02:18,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 201 transitions. [2020-12-09 14:02:18,637 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 201 transitions. Word has length 57 [2020-12-09 14:02:18,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:02:18,637 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 201 transitions. [2020-12-09 14:02:18,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-09 14:02:18,637 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 201 transitions. [2020-12-09 14:02:18,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-09 14:02:18,638 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:02:18,638 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:02:18,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable169 [2020-12-09 14:02:18,839 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:02:18,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:02:18,839 INFO L82 PathProgramCache]: Analyzing trace with hash -750407422, now seen corresponding path program 2 times [2020-12-09 14:02:18,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:02:18,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013171228] [2020-12-09 14:02:18,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:02:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:02:18,925 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:02:18,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013171228] [2020-12-09 14:02:18,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232025763] [2020-12-09 14:02:18,926 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/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 [2020-12-09 14:02:19,076 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2020-12-09 14:02:19,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 14:02:19,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-09 14:02:19,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:02:19,178 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:02:19,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:02:25,314 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:02:25,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [226947207] [2020-12-09 14:02:25,315 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2020-12-09 14:02:25,316 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 14:02:25,316 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 14:02:25,316 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 14:02:25,316 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 14:02:25,520 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 14:02:25,912 WARN L197 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 87 [2020-12-09 14:02:26,116 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 14:02:26,311 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 14:02:26,500 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 14:02:29,313 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-12-09 14:02:29,781 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-12-09 14:02:30,565 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2020-12-09 14:02:30,815 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2020-12-09 14:02:31,302 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 79 [2020-12-09 14:02:31,472 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 14:02:31,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 14:02:31,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 18 [2020-12-09 14:02:31,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642063991] [2020-12-09 14:02:31,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-09 14:02:31,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:02:31,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-09 14:02:31,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=1484, Unknown=2, NotChecked=0, Total=1722 [2020-12-09 14:02:31,473 INFO L87 Difference]: Start difference. First operand 175 states and 201 transitions. Second operand 18 states. [2020-12-09 14:02:37,256 WARN L197 SmtUtils]: Spent 5.60 s on a formula simplification. DAG size of input: 40 DAG size of output: 10 [2020-12-09 14:02:41,559 WARN L197 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 34 DAG size of output: 10 [2020-12-09 14:02:45,492 WARN L197 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 28 DAG size of output: 10 [2020-12-09 14:02:51,393 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 10 [2020-12-09 14:02:54,376 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 10 [2020-12-09 14:03:15,838 WARN L197 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 23 [2020-12-09 14:03:27,539 WARN L197 SmtUtils]: Spent 2.08 s on a formula simplification that was a NOOP. DAG size: 25 [2020-12-09 14:03:39,474 WARN L197 SmtUtils]: Spent 4.63 s on a formula simplification that was a NOOP. DAG size: 29 [2020-12-09 14:03:52,412 WARN L197 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 31 [2020-12-09 14:04:06,460 WARN L197 SmtUtils]: Spent 4.99 s on a formula simplification that was a NOOP. DAG size: 35 [2020-12-09 14:04:33,646 WARN L197 SmtUtils]: Spent 13.41 s on a formula simplification that was a NOOP. DAG size: 37 [2020-12-09 14:05:03,669 WARN L197 SmtUtils]: Spent 19.02 s on a formula simplification that was a NOOP. DAG size: 41 [2020-12-09 14:05:14,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:05:14,989 INFO L93 Difference]: Finished difference Result 520 states and 580 transitions. [2020-12-09 14:05:14,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-12-09 14:05:14,998 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 58 [2020-12-09 14:05:14,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:05:14,999 INFO L225 Difference]: With dead ends: 520 [2020-12-09 14:05:14,999 INFO L226 Difference]: Without dead ends: 422 [2020-12-09 14:05:15,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 124 SyntacticMatches, 17 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1177 ImplicationChecksByTransitivity, 144.2s TimeCoverageRelationStatistics Valid=556, Invalid=2609, Unknown=27, NotChecked=0, Total=3192 [2020-12-09 14:05:15,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-12-09 14:05:15,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 175. [2020-12-09 14:05:15,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-12-09 14:05:15,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 193 transitions. [2020-12-09 14:05:15,011 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 193 transitions. Word has length 58 [2020-12-09 14:05:15,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:05:15,011 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 193 transitions. [2020-12-09 14:05:15,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-09 14:05:15,011 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 193 transitions. [2020-12-09 14:05:15,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-09 14:05:15,012 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:05:15,012 INFO L422 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:05:15,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:05:15,213 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:05:15,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:05:15,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1137696522, now seen corresponding path program 3 times [2020-12-09 14:05:15,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:05:15,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858094162] [2020-12-09 14:05:15,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:05:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:05:15,433 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:05:15,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858094162] [2020-12-09 14:05:15,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476962849] [2020-12-09 14:05:15,434 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/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 [2020-12-09 14:05:15,484 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-09 14:05:15,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 14:05:15,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-09 14:05:15,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:05:15,629 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:05:15,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:05:16,127 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:05:16,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [130135940] [2020-12-09 14:05:16,128 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2020-12-09 14:05:16,128 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 14:05:16,128 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 14:05:16,129 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 14:05:16,129 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 14:05:16,366 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 14:05:17,240 WARN L197 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2020-12-09 14:05:17,460 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 14:05:17,709 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 14:05:17,946 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 14:05:18,147 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-12-09 14:05:18,327 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-12-09 14:05:19,307 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2020-12-09 14:05:19,721 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-12-09 14:05:19,915 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-09 14:05:20,093 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-12-09 14:05:20,270 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-12-09 14:05:20,500 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-12-09 14:05:20,739 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-12-09 14:05:20,964 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-12-09 14:05:21,455 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-12-09 14:05:21,739 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2020-12-09 14:05:22,075 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2020-12-09 14:05:22,677 WARN L197 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2020-12-09 14:05:22,866 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 14:05:22,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 14:05:22,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33 [2020-12-09 14:05:22,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313447716] [2020-12-09 14:05:22,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-12-09 14:05:22,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:05:22,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-12-09 14:05:22,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=734, Invalid=2236, Unknown=0, NotChecked=0, Total=2970 [2020-12-09 14:05:22,868 INFO L87 Difference]: Start difference. First operand 175 states and 193 transitions. Second operand 33 states. [2020-12-09 14:05:23,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:05:23,336 INFO L93 Difference]: Finished difference Result 449 states and 515 transitions. [2020-12-09 14:05:23,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-12-09 14:05:23,337 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 97 [2020-12-09 14:05:23,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:05:23,338 INFO L225 Difference]: With dead ends: 449 [2020-12-09 14:05:23,338 INFO L226 Difference]: Without dead ends: 354 [2020-12-09 14:05:23,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 235 SyntacticMatches, 18 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2190 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=734, Invalid=2236, Unknown=0, NotChecked=0, Total=2970 [2020-12-09 14:05:23,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-12-09 14:05:23,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 255. [2020-12-09 14:05:23,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-12-09 14:05:23,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 289 transitions. [2020-12-09 14:05:23,352 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 289 transitions. Word has length 97 [2020-12-09 14:05:23,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:05:23,352 INFO L481 AbstractCegarLoop]: Abstraction has 255 states and 289 transitions. [2020-12-09 14:05:23,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-12-09 14:05:23,352 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 289 transitions. [2020-12-09 14:05:23,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-09 14:05:23,353 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:05:23,353 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:05:23,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:05:23,554 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:05:23,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:05:23,555 INFO L82 PathProgramCache]: Analyzing trace with hash 473160066, now seen corresponding path program 3 times [2020-12-09 14:05:23,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:05:23,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272440430] [2020-12-09 14:05:23,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:05:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:05:23,866 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:05:23,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272440430] [2020-12-09 14:05:23,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634858946] [2020-12-09 14:05:23,866 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_914a5d00-75a2-4190-a236-a211d81f6c46/bin/utaipan/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 [2020-12-09 14:05:23,912 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-09 14:05:23,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 14:05:23,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 33 conjunts are in the unsatisfiable core [2020-12-09 14:05:23,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:05:24,354 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:05:24,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:05:25,691 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:05:25,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1490103797] [2020-12-09 14:05:25,692 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2020-12-09 14:05:25,692 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 14:05:25,693 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 14:05:25,693 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 14:05:25,693 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 14:05:25,926 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 14:05:26,623 WARN L197 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 87 [2020-12-09 14:05:26,965 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 14:05:27,305 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 14:05:27,645 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 14:05:27,984 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-12-09 14:05:28,184 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-12-09 14:05:30,809 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-12-09 14:05:31,319 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-12-09 14:05:31,840 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-12-09 14:05:32,177 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-12-09 14:05:32,504 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-12-09 14:05:33,319 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-12-09 14:05:33,697 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2020-12-09 14:05:34,109 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2020-12-09 14:05:34,941 WARN L197 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 79 [2020-12-09 14:05:35,285 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 14:05:35,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 14:05:35,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33 [2020-12-09 14:05:35,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332271195] [2020-12-09 14:05:35,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-12-09 14:05:35,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:05:35,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-12-09 14:05:35,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=439, Invalid=2753, Unknown=0, NotChecked=0, Total=3192 [2020-12-09 14:05:35,287 INFO L87 Difference]: Start difference. First operand 255 states and 289 transitions. Second operand 33 states. [2020-12-09 14:05:54,838 WARN L197 SmtUtils]: Spent 17.54 s on a formula simplification. DAG size of input: 38 DAG size of output: 18 [2020-12-09 14:06:06,845 WARN L197 SmtUtils]: Spent 6.44 s on a formula simplification. DAG size of input: 34 DAG size of output: 10 [2020-12-09 14:06:15,758 WARN L197 SmtUtils]: Spent 3.59 s on a formula simplification. DAG size of input: 30 DAG size of output: 10 [2020-12-09 14:06:29,944 WARN L197 SmtUtils]: Spent 9.18 s on a formula simplification. DAG size of input: 26 DAG size of output: 10 [2020-12-09 14:06:41,507 WARN L197 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 22 DAG size of output: 10 [2020-12-09 14:06:52,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:06:52,605 INFO L93 Difference]: Finished difference Result 354 states and 404 transitions. [2020-12-09 14:06:52,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-12-09 14:06:52,607 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 98 [2020-12-09 14:06:52,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:06:52,608 INFO L225 Difference]: With dead ends: 354 [2020-12-09 14:06:52,608 INFO L226 Difference]: Without dead ends: 256 [2020-12-09 14:06:52,610 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 222 SyntacticMatches, 32 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1499 ImplicationChecksByTransitivity, 86.2s TimeCoverageRelationStatistics Valid=708, Invalid=3571, Unknown=11, NotChecked=0, Total=4290 [2020-12-09 14:06:52,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-12-09 14:06:52,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 255. [2020-12-09 14:06:52,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-12-09 14:06:52,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 279 transitions. [2020-12-09 14:06:52,622 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 279 transitions. Word has length 98 [2020-12-09 14:06:52,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:06:52,622 INFO L481 AbstractCegarLoop]: Abstraction has 255 states and 279 transitions. [2020-12-09 14:06:52,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-12-09 14:06:52,622 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 279 transitions. [2020-12-09 14:06:52,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-12-09 14:06:52,623 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:06:52,623 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:06:52,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable208 [2020-12-09 14:06:52,825 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 14:06:52,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:06:52,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1477806114, now seen corresponding path program 4 times [2020-12-09 14:06:52,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:06:52,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103749846] [2020-12-09 14:06:52,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:06:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 14:06:52,873 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 14:06:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 14:06:52,908 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 14:06:52,936 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 14:06:52,936 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 14:06:52,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2020-12-09 14:06:53,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:06:53 BoogieIcfgContainer [2020-12-09 14:06:53,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 14:06:53,001 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 14:06:53,001 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 14:06:53,001 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 14:06:53,001 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:01:29" (3/4) ... [2020-12-09 14:06:53,003 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 14:06:53,004 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 14:06:53,004 INFO L168 Benchmark]: Toolchain (without parser) took 324618.01 ms. Allocated memory was 115.3 MB in the beginning and 169.9 MB in the end (delta: 54.5 MB). Free memory was 84.4 MB in the beginning and 97.5 MB in the end (delta: -13.1 MB). Peak memory consumption was 42.2 MB. Max. memory is 16.1 GB. [2020-12-09 14:06:53,004 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 75.5 MB. Free memory was 58.0 MB in the beginning and 58.0 MB in the end (delta: 26.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 14:06:53,004 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.70 ms. Allocated memory is still 115.3 MB. Free memory was 84.1 MB in the beginning and 91.0 MB in the end (delta: -6.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 14:06:53,005 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.26 ms. Allocated memory is still 115.3 MB. Free memory was 91.0 MB in the beginning and 88.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:06:53,005 INFO L168 Benchmark]: Boogie Preprocessor took 25.70 ms. Allocated memory is still 115.3 MB. Free memory was 88.9 MB in the beginning and 87.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:06:53,005 INFO L168 Benchmark]: RCFGBuilder took 634.18 ms. Allocated memory is still 115.3 MB. Free memory was 87.2 MB in the beginning and 77.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:06:53,005 INFO L168 Benchmark]: TraceAbstraction took 323696.07 ms. Allocated memory was 115.3 MB in the beginning and 169.9 MB in the end (delta: 54.5 MB). Free memory was 77.5 MB in the beginning and 98.5 MB in the end (delta: -21.0 MB). Peak memory consumption was 35.5 MB. Max. memory is 16.1 GB. [2020-12-09 14:06:53,005 INFO L168 Benchmark]: Witness Printer took 2.84 ms. Allocated memory is still 169.9 MB. Free memory was 98.5 MB in the beginning and 97.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:06:53,007 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 75.5 MB. Free memory was 58.0 MB in the beginning and 58.0 MB in the end (delta: 26.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 218.70 ms. Allocated memory is still 115.3 MB. Free memory was 84.1 MB in the beginning and 91.0 MB in the end (delta: -6.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.26 ms. Allocated memory is still 115.3 MB. Free memory was 91.0 MB in the beginning and 88.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.70 ms. Allocated memory is still 115.3 MB. Free memory was 88.9 MB in the beginning and 87.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 634.18 ms. Allocated memory is still 115.3 MB. Free memory was 87.2 MB in the beginning and 77.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 323696.07 ms. Allocated memory was 115.3 MB in the beginning and 169.9 MB in the end (delta: 54.5 MB). Free memory was 77.5 MB in the beginning and 98.5 MB in the end (delta: -21.0 MB). Peak memory consumption was 35.5 MB. Max. memory is 16.1 GB. * Witness Printer took 2.84 ms. Allocated memory is still 169.9 MB. Free memory was 98.5 MB in the beginning and 97.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 167]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 165, overapproximation of bitwiseAnd at line 166. Possible FailurePath: [L213] unsigned int a ; [L214] unsigned int ma = __VERIFIER_nondet_uint(); [L215] signed char ea = __VERIFIER_nondet_char(); [L216] unsigned int b ; [L217] unsigned int mb = __VERIFIER_nondet_uint(); [L218] signed char eb = __VERIFIER_nondet_char(); [L219] unsigned int r_mul ; [L220] unsigned int zero ; [L221] unsigned int one ; [L222] int sb ; [L223] int tmp ; [L224] int tmp___0 ; [L225] int tmp___1 ; [L226] int __retres16 ; [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L230] zero = base2flt(0, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND FALSE !(m < 1U << 24U) [L68] m = m & ~ (1U << 24U) [L69] EXPR e + 128 [L69] res = m | ((unsigned int )(e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L231] one = base2flt(1, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND TRUE m >= 1U << 25U [L56] COND TRUE e >= 127 [L57] __retres4 = 4294967295U [L72] return (__retres4); [L232] a = base2flt(ma, ea) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND FALSE !(m >= 1U << 25U) [L68] m = m & ~ (1U << 24U) [L69] EXPR e + 128 [L69] res = m | ((unsigned int )(e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L233] b = base2flt(mb, eb) [L140] unsigned int res ; [L141] unsigned int ma ; [L142] unsigned int mb ; [L143] unsigned long long accu ; [L144] int ea ; [L145] int eb ; [L146] unsigned int tmp ; [L147] unsigned int __retres10 ; [L150] COND FALSE !(a < b) [L157] COND FALSE !(! b) [L163] ma = a & ((1U << 24U) - 1U) [L164] EXPR (int )(a >> 24U) - 128 [L164] ea = (int )(a >> 24U) - 128 [L165] ma = ma | (1U << 24U) [L166] mb = b & ((1U << 24U) - 1U) [L167] (int )(b >> 24U) - 128 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 122 locations, 36 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 323.5s, OverallIterations: 30, TraceHistogramMax: 24, AutomataDifference: 248.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2905 SDtfs, 4920 SDslu, 9022 SDs, 0 SdLazy, 7417 SolverSat, 456 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 37.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2388 GetRequests, 1644 SyntacticMatches, 156 SemanticMatches, 588 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11011 ImplicationChecksByTransitivity, 272.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=255occurred in iteration=28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 29 MinimizatonAttempts, 1457 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 11.3s InterpolantComputationTime, 1832 NumberOfCodeBlocks, 1832 NumberOfCodeBlocksAsserted, 61 NumberOfCheckSat, 2375 ConstructedInterpolants, 0 QuantifiedInterpolants, 464493 SizeOfPredicates, 34 NumberOfNonLiveVariables, 2543 ConjunctsInSsa, 181 ConjunctsInUnsatCore, 65 InterpolantComputations, 15 PerfectInterpolantSequences, 38/3609 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME[ms]: 2054, ICFG_INTERPRETER_ENTERED_PROCEDURES: 10, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 264, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 419, TOOLS_POST_TIME[ms]: 749, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 419, TOOLS_QUANTIFIERELIM_TIME[ms]: 691, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 85, FLUID_QUERY_TIME[ms]: 13, FLUID_QUERIES: 777, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 20, DOMAIN_WIDEN_TIME[ms]: 731, DOMAIN_ISSUBSETEQ_APPLICATIONS: 30, DOMAIN_ISSUBSETEQ_TIME[ms]: 92, DOMAIN_ISBOTTOM_APPLICATIONS: 264, DOMAIN_ISBOTTOM_TIME[ms]: 354, LOOP_SUMMARIZER_APPLICATIONS: 10, LOOP_SUMMARIZER_CACHE_MISSES: 10, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 963, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 962, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 30, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 3, PATH_EXPR_TIME[ms]: 8, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 44, DAG_COMPRESSION_PROCESSED_NODES: 4264, DAG_COMPRESSION_RETAINED_NODES: 662, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...