./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 16:57:05,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 16:57:05,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 16:57:06,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 16:57:06,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 16:57:06,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 16:57:06,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 16:57:06,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 16:57:06,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 16:57:06,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 16:57:06,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 16:57:06,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 16:57:06,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 16:57:06,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 16:57:06,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 16:57:06,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 16:57:06,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 16:57:06,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 16:57:06,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 16:57:06,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 16:57:06,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 16:57:06,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 16:57:06,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 16:57:06,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 16:57:06,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 16:57:06,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 16:57:06,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 16:57:06,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 16:57:06,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 16:57:06,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 16:57:06,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 16:57:06,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 16:57:06,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 16:57:06,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 16:57:06,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 16:57:06,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 16:57:06,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 16:57:06,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 16:57:06,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 16:57:06,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 16:57:06,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 16:57:06,047 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-06 16:57:06,063 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 16:57:06,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 16:57:06,064 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 16:57:06,064 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 16:57:06,064 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 16:57:06,065 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 16:57:06,065 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 16:57:06,065 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 16:57:06,065 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 16:57:06,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 16:57:06,066 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 16:57:06,066 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 16:57:06,066 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 16:57:06,066 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 16:57:06,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 16:57:06,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 16:57:06,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 16:57:06,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 16:57:06,067 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-06 16:57:06,067 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 16:57:06,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 16:57:06,067 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 16:57:06,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 16:57:06,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 16:57:06,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 16:57:06,068 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 16:57:06,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 16:57:06,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 16:57:06,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 16:57:06,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 16:57:06,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 16:57:06,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 16:57:06,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 16:57:06,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 16:57:06,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 [2021-12-06 16:57:06,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 16:57:06,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 16:57:06,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 16:57:06,275 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 16:57:06,276 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 16:57:06,277 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2021-12-06 16:57:06,323 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/data/fe4953ed2/818fb1e493e14f5eb8237e951c3e6d3b/FLAGaec587a25 [2021-12-06 16:57:06,698 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 16:57:06,699 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2021-12-06 16:57:06,706 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/data/fe4953ed2/818fb1e493e14f5eb8237e951c3e6d3b/FLAGaec587a25 [2021-12-06 16:57:06,716 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/data/fe4953ed2/818fb1e493e14f5eb8237e951c3e6d3b [2021-12-06 16:57:06,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 16:57:06,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 16:57:06,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 16:57:06,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 16:57:06,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 16:57:06,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:57:06" (1/1) ... [2021-12-06 16:57:06,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59dc0cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:06, skipping insertion in model container [2021-12-06 16:57:06,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:57:06" (1/1) ... [2021-12-06 16:57:06,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 16:57:06,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 16:57:06,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[728,741] [2021-12-06 16:57:06,906 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 16:57:06,913 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 16:57:06,921 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[728,741] [2021-12-06 16:57:06,941 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 16:57:06,951 INFO L208 MainTranslator]: Completed translation [2021-12-06 16:57:06,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:06 WrapperNode [2021-12-06 16:57:06,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 16:57:06,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 16:57:06,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 16:57:06,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 16:57:06,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:06" (1/1) ... [2021-12-06 16:57:06,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:06" (1/1) ... [2021-12-06 16:57:06,989 INFO L137 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 124 [2021-12-06 16:57:06,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 16:57:06,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 16:57:06,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 16:57:06,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 16:57:06,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:06" (1/1) ... [2021-12-06 16:57:06,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:06" (1/1) ... [2021-12-06 16:57:06,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:06" (1/1) ... [2021-12-06 16:57:06,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:06" (1/1) ... [2021-12-06 16:57:07,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:06" (1/1) ... [2021-12-06 16:57:07,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:06" (1/1) ... [2021-12-06 16:57:07,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:06" (1/1) ... [2021-12-06 16:57:07,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 16:57:07,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 16:57:07,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 16:57:07,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 16:57:07,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:06" (1/1) ... [2021-12-06 16:57:07,017 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 16:57:07,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:07,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:07,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 16:57:07,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 16:57:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 16:57:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2021-12-06 16:57:07,071 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2021-12-06 16:57:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 16:57:07,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 16:57:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-06 16:57:07,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-06 16:57:07,130 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 16:57:07,132 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 16:57:07,306 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 16:57:07,311 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 16:57:07,311 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 16:57:07,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:57:07 BoogieIcfgContainer [2021-12-06 16:57:07,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 16:57:07,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 16:57:07,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 16:57:07,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 16:57:07,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:57:06" (1/3) ... [2021-12-06 16:57:07,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c5c7db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:57:07, skipping insertion in model container [2021-12-06 16:57:07,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:06" (2/3) ... [2021-12-06 16:57:07,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c5c7db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:57:07, skipping insertion in model container [2021-12-06 16:57:07,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:57:07" (3/3) ... [2021-12-06 16:57:07,319 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_3a.c.cil.c [2021-12-06 16:57:07,323 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 16:57:07,324 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2021-12-06 16:57:07,363 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 16:57:07,368 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 16:57:07,369 INFO L340 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2021-12-06 16:57:07,387 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 60 states have (on average 1.6833333333333333) internal successors, (101), 79 states have internal predecessors, (101), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-06 16:57:07,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 16:57:07,392 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:07,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:57:07,393 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:07,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:07,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1033814779, now seen corresponding path program 1 times [2021-12-06 16:57:07,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:07,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108410062] [2021-12-06 16:57:07,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:07,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:07,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:57:07,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:07,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108410062] [2021-12-06 16:57:07,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108410062] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 16:57:07,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 16:57:07,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 16:57:07,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790357057] [2021-12-06 16:57:07,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 16:57:07,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 16:57:07,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:07,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 16:57:07,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 16:57:07,558 INFO L87 Difference]: Start difference. First operand has 86 states, 60 states have (on average 1.6833333333333333) internal successors, (101), 79 states have internal predecessors, (101), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:07,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:07,584 INFO L93 Difference]: Finished difference Result 167 states and 223 transitions. [2021-12-06 16:57:07,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 16:57:07,586 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-06 16:57:07,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:07,592 INFO L225 Difference]: With dead ends: 167 [2021-12-06 16:57:07,592 INFO L226 Difference]: Without dead ends: 65 [2021-12-06 16:57:07,595 INFO L932 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 [2021-12-06 16:57:07,598 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:07,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 16:57:07,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-12-06 16:57:07,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-12-06 16:57:07,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 44 states have (on average 1.5227272727272727) internal successors, (67), 59 states have internal predecessors, (67), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 16:57:07,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2021-12-06 16:57:07,628 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 9 [2021-12-06 16:57:07,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:07,628 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2021-12-06 16:57:07,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:07,629 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2021-12-06 16:57:07,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 16:57:07,630 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:07,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:57:07,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 16:57:07,630 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:07,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:07,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1034756045, now seen corresponding path program 1 times [2021-12-06 16:57:07,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:07,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291081851] [2021-12-06 16:57:07,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:07,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:07,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:57:07,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:07,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291081851] [2021-12-06 16:57:07,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291081851] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 16:57:07,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 16:57:07,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 16:57:07,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59002084] [2021-12-06 16:57:07,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 16:57:07,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 16:57:07,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:07,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 16:57:07,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 16:57:07,676 INFO L87 Difference]: Start difference. First operand 65 states and 75 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:07,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:07,753 INFO L93 Difference]: Finished difference Result 167 states and 203 transitions. [2021-12-06 16:57:07,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 16:57:07,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-06 16:57:07,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:07,757 INFO L225 Difference]: With dead ends: 167 [2021-12-06 16:57:07,757 INFO L226 Difference]: Without dead ends: 105 [2021-12-06 16:57:07,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 16:57:07,760 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 56 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:07,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 188 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 16:57:07,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-12-06 16:57:07,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 96. [2021-12-06 16:57:07,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 74 states have (on average 1.4864864864864864) internal successors, (110), 89 states have internal predecessors, (110), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 16:57:07,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 118 transitions. [2021-12-06 16:57:07,777 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 118 transitions. Word has length 9 [2021-12-06 16:57:07,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:07,778 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 118 transitions. [2021-12-06 16:57:07,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:07,778 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 118 transitions. [2021-12-06 16:57:07,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 16:57:07,779 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:07,779 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:57:07,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 16:57:07,780 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:07,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:07,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1597215558, now seen corresponding path program 1 times [2021-12-06 16:57:07,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:07,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412506000] [2021-12-06 16:57:07,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:07,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:07,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:57:07,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:07,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412506000] [2021-12-06 16:57:07,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412506000] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 16:57:07,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 16:57:07,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 16:57:07,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709607693] [2021-12-06 16:57:07,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 16:57:07,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 16:57:07,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:07,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 16:57:07,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 16:57:07,833 INFO L87 Difference]: Start difference. First operand 96 states and 118 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:07,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:07,904 INFO L93 Difference]: Finished difference Result 115 states and 135 transitions. [2021-12-06 16:57:07,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 16:57:07,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-12-06 16:57:07,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:07,906 INFO L225 Difference]: With dead ends: 115 [2021-12-06 16:57:07,906 INFO L226 Difference]: Without dead ends: 113 [2021-12-06 16:57:07,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 16:57:07,907 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 72 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:07,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 255 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 16:57:07,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-12-06 16:57:07,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 98. [2021-12-06 16:57:07,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 91 states have internal predecessors, (111), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 16:57:07,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 119 transitions. [2021-12-06 16:57:07,917 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 119 transitions. Word has length 13 [2021-12-06 16:57:07,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:07,917 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 119 transitions. [2021-12-06 16:57:07,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:07,918 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 119 transitions. [2021-12-06 16:57:07,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-06 16:57:07,918 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:07,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:57:07,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 16:57:07,919 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:07,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:07,919 INFO L85 PathProgramCache]: Analyzing trace with hash 2025925355, now seen corresponding path program 1 times [2021-12-06 16:57:07,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:07,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235654089] [2021-12-06 16:57:07,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:07,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:07,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:57:07,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:07,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235654089] [2021-12-06 16:57:07,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235654089] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 16:57:07,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 16:57:07,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 16:57:07,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620131195] [2021-12-06 16:57:07,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 16:57:07,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 16:57:07,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:07,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 16:57:07,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 16:57:07,956 INFO L87 Difference]: Start difference. First operand 98 states and 119 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:08,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:08,013 INFO L93 Difference]: Finished difference Result 214 states and 260 transitions. [2021-12-06 16:57:08,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 16:57:08,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-12-06 16:57:08,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:08,015 INFO L225 Difference]: With dead ends: 214 [2021-12-06 16:57:08,015 INFO L226 Difference]: Without dead ends: 119 [2021-12-06 16:57:08,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-06 16:57:08,017 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 94 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:08,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 202 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 16:57:08,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-12-06 16:57:08,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 102. [2021-12-06 16:57:08,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.4375) internal successors, (115), 95 states have internal predecessors, (115), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 16:57:08,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 123 transitions. [2021-12-06 16:57:08,027 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 123 transitions. Word has length 14 [2021-12-06 16:57:08,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:08,027 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 123 transitions. [2021-12-06 16:57:08,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:08,027 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 123 transitions. [2021-12-06 16:57:08,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-06 16:57:08,028 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:08,028 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:57:08,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 16:57:08,029 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:08,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:08,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1055489761, now seen corresponding path program 1 times [2021-12-06 16:57:08,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:08,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294922783] [2021-12-06 16:57:08,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:08,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-06 16:57:08,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:08,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294922783] [2021-12-06 16:57:08,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294922783] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 16:57:08,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 16:57:08,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 16:57:08,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211241142] [2021-12-06 16:57:08,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 16:57:08,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 16:57:08,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:08,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 16:57:08,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 16:57:08,052 INFO L87 Difference]: Start difference. First operand 102 states and 123 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:08,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:08,070 INFO L93 Difference]: Finished difference Result 108 states and 131 transitions. [2021-12-06 16:57:08,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 16:57:08,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-12-06 16:57:08,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:08,072 INFO L225 Difference]: With dead ends: 108 [2021-12-06 16:57:08,072 INFO L226 Difference]: Without dead ends: 107 [2021-12-06 16:57:08,073 INFO L932 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 [2021-12-06 16:57:08,074 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 4 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:08,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 139 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 16:57:08,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-12-06 16:57:08,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 100. [2021-12-06 16:57:08,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 79 states have (on average 1.4177215189873418) internal successors, (112), 93 states have internal predecessors, (112), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 16:57:08,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 120 transitions. [2021-12-06 16:57:08,085 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 120 transitions. Word has length 15 [2021-12-06 16:57:08,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:08,085 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 120 transitions. [2021-12-06 16:57:08,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:08,086 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 120 transitions. [2021-12-06 16:57:08,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-06 16:57:08,086 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:08,087 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:57:08,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 16:57:08,087 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:08,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:08,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1055491939, now seen corresponding path program 1 times [2021-12-06 16:57:08,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:08,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342074238] [2021-12-06 16:57:08,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:08,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,119 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:57:08,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:08,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342074238] [2021-12-06 16:57:08,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342074238] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:57:08,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191179261] [2021-12-06 16:57:08,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:08,120 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:08,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:08,121 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:57:08,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 16:57:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 16:57:08,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:08,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:57:08,204 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 16:57:08,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191179261] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 16:57:08,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 16:57:08,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-06 16:57:08,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762977648] [2021-12-06 16:57:08,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 16:57:08,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 16:57:08,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:08,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 16:57:08,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 16:57:08,206 INFO L87 Difference]: Start difference. First operand 100 states and 120 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:08,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:08,233 INFO L93 Difference]: Finished difference Result 120 states and 147 transitions. [2021-12-06 16:57:08,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 16:57:08,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-12-06 16:57:08,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:08,234 INFO L225 Difference]: With dead ends: 120 [2021-12-06 16:57:08,234 INFO L226 Difference]: Without dead ends: 119 [2021-12-06 16:57:08,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 16:57:08,235 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 10 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:08,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 218 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 16:57:08,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-12-06 16:57:08,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 102. [2021-12-06 16:57:08,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 95 states have internal predecessors, (114), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 16:57:08,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2021-12-06 16:57:08,244 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 15 [2021-12-06 16:57:08,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:08,244 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2021-12-06 16:57:08,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:08,244 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2021-12-06 16:57:08,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-06 16:57:08,245 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:08,245 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:57:08,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 16:57:08,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:08,446 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:08,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:08,447 INFO L85 PathProgramCache]: Analyzing trace with hash -716464285, now seen corresponding path program 1 times [2021-12-06 16:57:08,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:08,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44068156] [2021-12-06 16:57:08,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:08,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,474 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-06 16:57:08,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:08,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44068156] [2021-12-06 16:57:08,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44068156] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 16:57:08,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 16:57:08,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 16:57:08,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321749914] [2021-12-06 16:57:08,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 16:57:08,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 16:57:08,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:08,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 16:57:08,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 16:57:08,475 INFO L87 Difference]: Start difference. First operand 102 states and 122 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:08,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:08,500 INFO L93 Difference]: Finished difference Result 123 states and 149 transitions. [2021-12-06 16:57:08,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 16:57:08,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-06 16:57:08,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:08,502 INFO L225 Difference]: With dead ends: 123 [2021-12-06 16:57:08,502 INFO L226 Difference]: Without dead ends: 121 [2021-12-06 16:57:08,503 INFO L932 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 [2021-12-06 16:57:08,504 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 13 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:08,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 143 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 16:57:08,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-12-06 16:57:08,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 99. [2021-12-06 16:57:08,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 92 states have internal predecessors, (110), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 16:57:08,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 118 transitions. [2021-12-06 16:57:08,515 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 118 transitions. Word has length 19 [2021-12-06 16:57:08,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:08,516 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 118 transitions. [2021-12-06 16:57:08,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:08,516 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 118 transitions. [2021-12-06 16:57:08,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-06 16:57:08,517 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:08,517 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:57:08,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 16:57:08,518 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:08,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:08,518 INFO L85 PathProgramCache]: Analyzing trace with hash 97215925, now seen corresponding path program 1 times [2021-12-06 16:57:08,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:08,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903582566] [2021-12-06 16:57:08,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:08,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:08,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 16:57:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 16:57:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,575 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 16:57:08,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:08,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903582566] [2021-12-06 16:57:08,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903582566] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 16:57:08,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 16:57:08,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 16:57:08,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620420649] [2021-12-06 16:57:08,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 16:57:08,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 16:57:08,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:08,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 16:57:08,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 16:57:08,578 INFO L87 Difference]: Start difference. First operand 99 states and 118 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 16:57:08,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:08,626 INFO L93 Difference]: Finished difference Result 143 states and 172 transitions. [2021-12-06 16:57:08,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 16:57:08,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2021-12-06 16:57:08,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:08,627 INFO L225 Difference]: With dead ends: 143 [2021-12-06 16:57:08,628 INFO L226 Difference]: Without dead ends: 141 [2021-12-06 16:57:08,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 16:57:08,629 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 90 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:08,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 201 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 16:57:08,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-12-06 16:57:08,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 121. [2021-12-06 16:57:08,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 100 states have (on average 1.39) internal successors, (139), 113 states have internal predecessors, (139), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 16:57:08,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 147 transitions. [2021-12-06 16:57:08,637 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 147 transitions. Word has length 23 [2021-12-06 16:57:08,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:08,637 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 147 transitions. [2021-12-06 16:57:08,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 16:57:08,638 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 147 transitions. [2021-12-06 16:57:08,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-06 16:57:08,639 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:08,639 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:57:08,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 16:57:08,639 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:08,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:08,639 INFO L85 PathProgramCache]: Analyzing trace with hash -177326691, now seen corresponding path program 1 times [2021-12-06 16:57:08,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:08,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839991380] [2021-12-06 16:57:08,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:08,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 16:57:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 16:57:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,679 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 16:57:08,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:08,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839991380] [2021-12-06 16:57:08,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839991380] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 16:57:08,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 16:57:08,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 16:57:08,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193088255] [2021-12-06 16:57:08,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 16:57:08,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 16:57:08,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:08,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 16:57:08,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 16:57:08,681 INFO L87 Difference]: Start difference. First operand 121 states and 147 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 16:57:08,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:08,727 INFO L93 Difference]: Finished difference Result 137 states and 163 transitions. [2021-12-06 16:57:08,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 16:57:08,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2021-12-06 16:57:08,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:08,729 INFO L225 Difference]: With dead ends: 137 [2021-12-06 16:57:08,730 INFO L226 Difference]: Without dead ends: 135 [2021-12-06 16:57:08,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 16:57:08,731 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 79 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:08,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 203 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 16:57:08,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-12-06 16:57:08,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 118. [2021-12-06 16:57:08,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 97 states have (on average 1.3814432989690721) internal successors, (134), 110 states have internal predecessors, (134), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 16:57:08,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 142 transitions. [2021-12-06 16:57:08,741 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 142 transitions. Word has length 25 [2021-12-06 16:57:08,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:08,741 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 142 transitions. [2021-12-06 16:57:08,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 16:57:08,741 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 142 transitions. [2021-12-06 16:57:08,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-06 16:57:08,743 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:08,743 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:57:08,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 16:57:08,743 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:08,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:08,744 INFO L85 PathProgramCache]: Analyzing trace with hash 2109054507, now seen corresponding path program 1 times [2021-12-06 16:57:08,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:08,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39337409] [2021-12-06 16:57:08,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:08,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 16:57:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 16:57:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 16:57:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,793 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 16:57:08,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:08,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39337409] [2021-12-06 16:57:08,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39337409] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 16:57:08,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 16:57:08,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 16:57:08,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339089997] [2021-12-06 16:57:08,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 16:57:08,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 16:57:08,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:08,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 16:57:08,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 16:57:08,795 INFO L87 Difference]: Start difference. First operand 118 states and 142 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 16:57:08,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:08,840 INFO L93 Difference]: Finished difference Result 132 states and 159 transitions. [2021-12-06 16:57:08,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 16:57:08,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2021-12-06 16:57:08,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:08,842 INFO L225 Difference]: With dead ends: 132 [2021-12-06 16:57:08,842 INFO L226 Difference]: Without dead ends: 130 [2021-12-06 16:57:08,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 16:57:08,843 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 88 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:08,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 194 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 16:57:08,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-12-06 16:57:08,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 112. [2021-12-06 16:57:08,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 93 states have (on average 1.3548387096774193) internal successors, (126), 104 states have internal predecessors, (126), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 16:57:08,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 134 transitions. [2021-12-06 16:57:08,853 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 134 transitions. Word has length 30 [2021-12-06 16:57:08,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:08,853 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 134 transitions. [2021-12-06 16:57:08,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 16:57:08,853 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 134 transitions. [2021-12-06 16:57:08,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-06 16:57:08,855 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:08,855 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:57:08,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 16:57:08,855 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:08,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:08,856 INFO L85 PathProgramCache]: Analyzing trace with hash 464267411, now seen corresponding path program 1 times [2021-12-06 16:57:08,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:08,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700298144] [2021-12-06 16:57:08,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:08,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:08,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 16:57:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 16:57:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 16:57:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,902 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 16:57:08,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:08,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700298144] [2021-12-06 16:57:08,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700298144] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 16:57:08,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 16:57:08,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 16:57:08,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374311273] [2021-12-06 16:57:08,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 16:57:08,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 16:57:08,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:08,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 16:57:08,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 16:57:08,904 INFO L87 Difference]: Start difference. First operand 112 states and 134 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 16:57:08,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:08,941 INFO L93 Difference]: Finished difference Result 126 states and 150 transitions. [2021-12-06 16:57:08,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 16:57:08,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2021-12-06 16:57:08,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:08,942 INFO L225 Difference]: With dead ends: 126 [2021-12-06 16:57:08,942 INFO L226 Difference]: Without dead ends: 124 [2021-12-06 16:57:08,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 16:57:08,943 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 77 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:08,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 194 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 16:57:08,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-12-06 16:57:08,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 107. [2021-12-06 16:57:08,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 90 states have (on average 1.3444444444444446) internal successors, (121), 99 states have internal predecessors, (121), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 16:57:08,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 129 transitions. [2021-12-06 16:57:08,949 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 129 transitions. Word has length 32 [2021-12-06 16:57:08,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:08,950 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 129 transitions. [2021-12-06 16:57:08,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 16:57:08,950 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 129 transitions. [2021-12-06 16:57:08,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-06 16:57:08,951 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:08,951 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 16:57:08,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 16:57:08,951 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:08,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:08,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1966657168, now seen corresponding path program 1 times [2021-12-06 16:57:08,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:08,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197218726] [2021-12-06 16:57:08,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:08,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 16:57:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 16:57:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 16:57:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 16:57:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:08,995 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 16:57:08,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:08,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197218726] [2021-12-06 16:57:08,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197218726] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:57:08,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536172913] [2021-12-06 16:57:08,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:08,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:08,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:08,997 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:57:08,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 16:57:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:09,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 22 conjunts are in the unsatisfiable core [2021-12-06 16:57:09,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:09,132 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 16:57:09,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 16:57:09,272 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-06 16:57:09,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536172913] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 16:57:09,273 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 16:57:09,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 10, 8] total 18 [2021-12-06 16:57:09,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888484710] [2021-12-06 16:57:09,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 16:57:09,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-06 16:57:09,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:09,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-06 16:57:09,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-12-06 16:57:09,275 INFO L87 Difference]: Start difference. First operand 107 states and 129 transitions. Second operand has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 16 states have internal predecessors, (37), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2021-12-06 16:57:09,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:09,484 INFO L93 Difference]: Finished difference Result 290 states and 348 transitions. [2021-12-06 16:57:09,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 16:57:09,485 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 16 states have internal predecessors, (37), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) Word has length 34 [2021-12-06 16:57:09,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:09,486 INFO L225 Difference]: With dead ends: 290 [2021-12-06 16:57:09,486 INFO L226 Difference]: Without dead ends: 154 [2021-12-06 16:57:09,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=634, Unknown=0, NotChecked=0, Total=756 [2021-12-06 16:57:09,487 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 53 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:09,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 583 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 16:57:09,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-12-06 16:57:09,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 104. [2021-12-06 16:57:09,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 86 states have (on average 1.2906976744186047) internal successors, (111), 95 states have internal predecessors, (111), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 16:57:09,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 119 transitions. [2021-12-06 16:57:09,495 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 119 transitions. Word has length 34 [2021-12-06 16:57:09,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:09,495 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 119 transitions. [2021-12-06 16:57:09,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 16 states have internal predecessors, (37), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2021-12-06 16:57:09,495 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 119 transitions. [2021-12-06 16:57:09,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-06 16:57:09,496 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:09,496 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1] [2021-12-06 16:57:09,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 16:57:09,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-06 16:57:09,698 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:09,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:09,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1958507304, now seen corresponding path program 1 times [2021-12-06 16:57:09,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:09,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960350533] [2021-12-06 16:57:09,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:09,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:09,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:09,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 16:57:09,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:09,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 16:57:09,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:09,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 16:57:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:09,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 16:57:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:09,883 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 16:57:09,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:09,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960350533] [2021-12-06 16:57:09,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960350533] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:57:09,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194747344] [2021-12-06 16:57:09,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:09,883 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:09,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:09,884 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:57:09,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 16:57:09,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:09,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-06 16:57:09,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:09,995 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-06 16:57:09,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 16:57:10,092 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 16:57:10,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194747344] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 16:57:10,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-06 16:57:10,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 8] total 15 [2021-12-06 16:57:10,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017757568] [2021-12-06 16:57:10,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 16:57:10,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 16:57:10,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:10,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 16:57:10,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-12-06 16:57:10,094 INFO L87 Difference]: Start difference. First operand 104 states and 119 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-06 16:57:10,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:10,135 INFO L93 Difference]: Finished difference Result 142 states and 158 transitions. [2021-12-06 16:57:10,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 16:57:10,135 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 47 [2021-12-06 16:57:10,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:10,136 INFO L225 Difference]: With dead ends: 142 [2021-12-06 16:57:10,137 INFO L226 Difference]: Without dead ends: 107 [2021-12-06 16:57:10,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2021-12-06 16:57:10,138 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 3 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:10,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 324 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 16:57:10,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-12-06 16:57:10,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 104. [2021-12-06 16:57:10,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 86 states have (on average 1.2674418604651163) internal successors, (109), 95 states have internal predecessors, (109), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 16:57:10,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 117 transitions. [2021-12-06 16:57:10,145 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 117 transitions. Word has length 47 [2021-12-06 16:57:10,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:10,146 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 117 transitions. [2021-12-06 16:57:10,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-06 16:57:10,146 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 117 transitions. [2021-12-06 16:57:10,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-06 16:57:10,147 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:10,147 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1] [2021-12-06 16:57:10,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 16:57:10,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-06 16:57:10,349 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:10,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:10,350 INFO L85 PathProgramCache]: Analyzing trace with hash 65023049, now seen corresponding path program 2 times [2021-12-06 16:57:10,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:10,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041720008] [2021-12-06 16:57:10,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:10,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:10,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 16:57:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:10,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 16:57:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:10,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 16:57:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:10,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 16:57:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:10,528 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 16:57:10,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:10,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041720008] [2021-12-06 16:57:10,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041720008] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:57:10,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289050559] [2021-12-06 16:57:10,529 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 16:57:10,529 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:10,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:10,530 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:57:10,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 16:57:10,566 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 16:57:10,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 16:57:10,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-06 16:57:10,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:10,641 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-06 16:57:10,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 16:57:10,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289050559] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 16:57:10,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 16:57:10,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2021-12-06 16:57:10,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245507002] [2021-12-06 16:57:10,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 16:57:10,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 16:57:10,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:10,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 16:57:10,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-06 16:57:10,643 INFO L87 Difference]: Start difference. First operand 104 states and 117 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-06 16:57:10,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:10,698 INFO L93 Difference]: Finished difference Result 170 states and 184 transitions. [2021-12-06 16:57:10,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 16:57:10,699 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 51 [2021-12-06 16:57:10,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:10,700 INFO L225 Difference]: With dead ends: 170 [2021-12-06 16:57:10,700 INFO L226 Difference]: Without dead ends: 168 [2021-12-06 16:57:10,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-12-06 16:57:10,701 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 57 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:10,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 468 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 16:57:10,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-12-06 16:57:10,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 117. [2021-12-06 16:57:10,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 98 states have (on average 1.2551020408163265) internal successors, (123), 107 states have internal predecessors, (123), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2021-12-06 16:57:10,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 132 transitions. [2021-12-06 16:57:10,711 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 132 transitions. Word has length 51 [2021-12-06 16:57:10,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:10,711 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 132 transitions. [2021-12-06 16:57:10,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-06 16:57:10,712 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 132 transitions. [2021-12-06 16:57:10,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-06 16:57:10,712 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:10,713 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1] [2021-12-06 16:57:10,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 16:57:10,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-06 16:57:10,913 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:10,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:10,914 INFO L85 PathProgramCache]: Analyzing trace with hash 65082631, now seen corresponding path program 1 times [2021-12-06 16:57:10,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:10,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280337929] [2021-12-06 16:57:10,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:10,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:10,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 16:57:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:10,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 16:57:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:10,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 16:57:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:10,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 16:57:10,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:10,979 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 16:57:10,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:10,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280337929] [2021-12-06 16:57:10,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280337929] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:57:10,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420257927] [2021-12-06 16:57:10,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:10,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:10,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:10,980 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:57:10,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 16:57:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:11,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 16:57:11,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-06 16:57:11,079 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 16:57:11,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420257927] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 16:57:11,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 16:57:11,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-12-06 16:57:11,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204736275] [2021-12-06 16:57:11,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 16:57:11,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 16:57:11,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:11,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 16:57:11,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-06 16:57:11,080 INFO L87 Difference]: Start difference. First operand 117 states and 132 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 16:57:11,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:11,140 INFO L93 Difference]: Finished difference Result 259 states and 291 transitions. [2021-12-06 16:57:11,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 16:57:11,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2021-12-06 16:57:11,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:11,141 INFO L225 Difference]: With dead ends: 259 [2021-12-06 16:57:11,142 INFO L226 Difference]: Without dead ends: 167 [2021-12-06 16:57:11,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-12-06 16:57:11,143 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 15 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:11,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 220 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 16:57:11,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-12-06 16:57:11,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 117. [2021-12-06 16:57:11,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 98 states have (on average 1.2448979591836735) internal successors, (122), 107 states have internal predecessors, (122), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2021-12-06 16:57:11,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 131 transitions. [2021-12-06 16:57:11,151 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 131 transitions. Word has length 51 [2021-12-06 16:57:11,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:11,151 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 131 transitions. [2021-12-06 16:57:11,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 16:57:11,151 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 131 transitions. [2021-12-06 16:57:11,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-06 16:57:11,152 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:11,152 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 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] [2021-12-06 16:57:11,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-06 16:57:11,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:11,352 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:11,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:11,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1181159842, now seen corresponding path program 1 times [2021-12-06 16:57:11,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:11,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288340043] [2021-12-06 16:57:11,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:11,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:11,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 16:57:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:11,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 16:57:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:11,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 16:57:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:11,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 16:57:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:11,411 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 16:57:11,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:11,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288340043] [2021-12-06 16:57:11,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288340043] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:57:11,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749026812] [2021-12-06 16:57:11,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:11,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:11,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:11,412 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:57:11,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 16:57:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:11,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 16:57:11,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:11,525 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-06 16:57:11,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 16:57:11,642 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 16:57:11,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749026812] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 16:57:11,642 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 16:57:11,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2021-12-06 16:57:11,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396954860] [2021-12-06 16:57:11,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 16:57:11,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 16:57:11,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:11,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 16:57:11,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2021-12-06 16:57:11,644 INFO L87 Difference]: Start difference. First operand 117 states and 131 transitions. Second operand has 14 states, 14 states have (on average 5.571428571428571) internal successors, (78), 14 states have internal predecessors, (78), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 16:57:11,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:11,749 INFO L93 Difference]: Finished difference Result 407 states and 454 transitions. [2021-12-06 16:57:11,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 16:57:11,750 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.571428571428571) internal successors, (78), 14 states have internal predecessors, (78), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2021-12-06 16:57:11,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:11,751 INFO L225 Difference]: With dead ends: 407 [2021-12-06 16:57:11,751 INFO L226 Difference]: Without dead ends: 315 [2021-12-06 16:57:11,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=171, Unknown=0, NotChecked=0, Total=272 [2021-12-06 16:57:11,752 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 168 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:11,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 326 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 16:57:11,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-12-06 16:57:11,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 137. [2021-12-06 16:57:11,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.2372881355932204) internal successors, (146), 127 states have internal predecessors, (146), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2021-12-06 16:57:11,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 155 transitions. [2021-12-06 16:57:11,761 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 155 transitions. Word has length 55 [2021-12-06 16:57:11,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:11,762 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 155 transitions. [2021-12-06 16:57:11,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.571428571428571) internal successors, (78), 14 states have internal predecessors, (78), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 16:57:11,762 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 155 transitions. [2021-12-06 16:57:11,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-06 16:57:11,762 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:11,762 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 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] [2021-12-06 16:57:11,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-06 16:57:11,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-06 16:57:11,963 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:11,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:11,963 INFO L85 PathProgramCache]: Analyzing trace with hash 27209643, now seen corresponding path program 1 times [2021-12-06 16:57:11,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:11,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985595653] [2021-12-06 16:57:11,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:11,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:11,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 16:57:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:11,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 16:57:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:12,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 16:57:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:12,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-06 16:57:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 16:57:12,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:12,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985595653] [2021-12-06 16:57:12,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985595653] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:57:12,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585530038] [2021-12-06 16:57:12,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:12,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:12,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:12,029 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:57:12,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 16:57:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:12,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 16:57:12,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:12,140 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 26 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-06 16:57:12,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 16:57:12,291 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 16:57:12,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585530038] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 16:57:12,292 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 16:57:12,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2021-12-06 16:57:12,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007436848] [2021-12-06 16:57:12,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 16:57:12,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 16:57:12,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:12,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 16:57:12,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2021-12-06 16:57:12,293 INFO L87 Difference]: Start difference. First operand 137 states and 155 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 16:57:12,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:12,531 INFO L93 Difference]: Finished difference Result 332 states and 375 transitions. [2021-12-06 16:57:12,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 16:57:12,532 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 56 [2021-12-06 16:57:12,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:12,533 INFO L225 Difference]: With dead ends: 332 [2021-12-06 16:57:12,533 INFO L226 Difference]: Without dead ends: 234 [2021-12-06 16:57:12,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=186, Unknown=0, NotChecked=0, Total=306 [2021-12-06 16:57:12,534 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 105 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:12,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 352 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 16:57:12,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-12-06 16:57:12,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 137. [2021-12-06 16:57:12,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.2033898305084745) internal successors, (142), 127 states have internal predecessors, (142), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2021-12-06 16:57:12,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 151 transitions. [2021-12-06 16:57:12,546 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 151 transitions. Word has length 56 [2021-12-06 16:57:12,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:12,546 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 151 transitions. [2021-12-06 16:57:12,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 16:57:12,546 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 151 transitions. [2021-12-06 16:57:12,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-06 16:57:12,547 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:12,547 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 4, 4, 4, 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] [2021-12-06 16:57:12,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-06 16:57:12,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-06 16:57:12,748 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:12,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:12,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1876581214, now seen corresponding path program 2 times [2021-12-06 16:57:12,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:12,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15035901] [2021-12-06 16:57:12,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:12,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:12,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 16:57:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:12,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 16:57:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:12,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 16:57:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:12,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 16:57:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:12,832 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 16:57:12,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:12,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15035901] [2021-12-06 16:57:12,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15035901] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:57:12,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536178615] [2021-12-06 16:57:12,832 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 16:57:12,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:12,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:12,833 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:57:12,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-06 16:57:12,893 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 16:57:12,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 16:57:12,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-06 16:57:12,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:12,991 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-12-06 16:57:12,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 16:57:12,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536178615] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 16:57:12,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 16:57:12,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 16 [2021-12-06 16:57:12,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959772777] [2021-12-06 16:57:12,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 16:57:12,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 16:57:12,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:12,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 16:57:12,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2021-12-06 16:57:12,993 INFO L87 Difference]: Start difference. First operand 137 states and 151 transitions. Second operand has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-06 16:57:13,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:13,039 INFO L93 Difference]: Finished difference Result 188 states and 201 transitions. [2021-12-06 16:57:13,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 16:57:13,040 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 75 [2021-12-06 16:57:13,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:13,041 INFO L225 Difference]: With dead ends: 188 [2021-12-06 16:57:13,041 INFO L226 Difference]: Without dead ends: 187 [2021-12-06 16:57:13,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2021-12-06 16:57:13,042 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 84 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:13,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 463 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 16:57:13,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-12-06 16:57:13,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 137. [2021-12-06 16:57:13,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.194915254237288) internal successors, (141), 127 states have internal predecessors, (141), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2021-12-06 16:57:13,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 150 transitions. [2021-12-06 16:57:13,049 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 150 transitions. Word has length 75 [2021-12-06 16:57:13,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:13,049 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 150 transitions. [2021-12-06 16:57:13,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-06 16:57:13,049 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 150 transitions. [2021-12-06 16:57:13,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-06 16:57:13,049 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:13,050 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 4, 4, 4, 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] [2021-12-06 16:57:13,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-06 16:57:13,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-06 16:57:13,251 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:13,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:13,252 INFO L85 PathProgramCache]: Analyzing trace with hash -548971742, now seen corresponding path program 1 times [2021-12-06 16:57:13,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:13,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909472177] [2021-12-06 16:57:13,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:13,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:13,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 16:57:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:13,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 16:57:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:13,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 16:57:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:13,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 16:57:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:13,464 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 16:57:13,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:13,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909472177] [2021-12-06 16:57:13,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909472177] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:57:13,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718378456] [2021-12-06 16:57:13,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:13,465 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:13,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:13,466 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:57:13,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-06 16:57:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:13,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 16:57:13,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:13,622 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 26 proven. 87 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-06 16:57:13,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 16:57:13,860 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 16:57:13,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718378456] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 16:57:13,860 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 16:57:13,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2021-12-06 16:57:13,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885876473] [2021-12-06 16:57:13,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 16:57:13,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-12-06 16:57:13,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:13,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-12-06 16:57:13,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=420, Unknown=0, NotChecked=0, Total=650 [2021-12-06 16:57:13,862 INFO L87 Difference]: Start difference. First operand 137 states and 150 transitions. Second operand has 26 states, 26 states have (on average 5.384615384615385) internal successors, (140), 26 states have internal predecessors, (140), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 16:57:14,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:14,060 INFO L93 Difference]: Finished difference Result 647 states and 716 transitions. [2021-12-06 16:57:14,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-06 16:57:14,061 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.384615384615385) internal successors, (140), 26 states have internal predecessors, (140), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 77 [2021-12-06 16:57:14,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:14,064 INFO L225 Difference]: With dead ends: 647 [2021-12-06 16:57:14,064 INFO L226 Difference]: Without dead ends: 555 [2021-12-06 16:57:14,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=297, Invalid=515, Unknown=0, NotChecked=0, Total=812 [2021-12-06 16:57:14,066 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 415 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:14,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 356 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 16:57:14,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2021-12-06 16:57:14,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 177. [2021-12-06 16:57:14,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 158 states have (on average 1.1962025316455696) internal successors, (189), 167 states have internal predecessors, (189), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2021-12-06 16:57:14,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 198 transitions. [2021-12-06 16:57:14,087 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 198 transitions. Word has length 77 [2021-12-06 16:57:14,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:14,087 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 198 transitions. [2021-12-06 16:57:14,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.384615384615385) internal successors, (140), 26 states have internal predecessors, (140), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 16:57:14,088 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 198 transitions. [2021-12-06 16:57:14,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-06 16:57:14,089 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:14,089 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 4, 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] [2021-12-06 16:57:14,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-06 16:57:14,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:14,291 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:14,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:14,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1523827503, now seen corresponding path program 1 times [2021-12-06 16:57:14,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:14,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553281309] [2021-12-06 16:57:14,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:14,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:14,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 16:57:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:14,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 16:57:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:14,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 16:57:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:14,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 16:57:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:14,523 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 4 proven. 85 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 16:57:14,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:14,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553281309] [2021-12-06 16:57:14,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553281309] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:57:14,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128577078] [2021-12-06 16:57:14,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:14,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:14,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:14,524 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:57:14,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-06 16:57:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:14,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 16:57:14,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:14,682 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-12-06 16:57:14,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 16:57:14,874 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-12-06 16:57:14,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128577078] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 16:57:14,875 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 16:57:14,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 22 [2021-12-06 16:57:14,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828803795] [2021-12-06 16:57:14,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 16:57:14,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-06 16:57:14,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:14,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-06 16:57:14,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2021-12-06 16:57:14,877 INFO L87 Difference]: Start difference. First operand 177 states and 198 transitions. Second operand has 22 states, 22 states have (on average 4.181818181818182) internal successors, (92), 20 states have internal predecessors, (92), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-06 16:57:15,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:15,281 INFO L93 Difference]: Finished difference Result 412 states and 466 transitions. [2021-12-06 16:57:15,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-06 16:57:15,281 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.181818181818182) internal successors, (92), 20 states have internal predecessors, (92), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) Word has length 78 [2021-12-06 16:57:15,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:15,283 INFO L225 Difference]: With dead ends: 412 [2021-12-06 16:57:15,284 INFO L226 Difference]: Without dead ends: 320 [2021-12-06 16:57:15,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=875, Unknown=0, NotChecked=0, Total=1056 [2021-12-06 16:57:15,285 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 360 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:15,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 955 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 16:57:15,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2021-12-06 16:57:15,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 186. [2021-12-06 16:57:15,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 165 states have (on average 1.1818181818181819) internal successors, (195), 173 states have internal predecessors, (195), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2021-12-06 16:57:15,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 208 transitions. [2021-12-06 16:57:15,301 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 208 transitions. Word has length 78 [2021-12-06 16:57:15,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:15,301 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 208 transitions. [2021-12-06 16:57:15,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.181818181818182) internal successors, (92), 20 states have internal predecessors, (92), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-06 16:57:15,301 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 208 transitions. [2021-12-06 16:57:15,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-06 16:57:15,302 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:15,303 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 4, 4, 4, 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, 1] [2021-12-06 16:57:15,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-06 16:57:15,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:15,503 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:15,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:15,504 INFO L85 PathProgramCache]: Analyzing trace with hash 311596639, now seen corresponding path program 1 times [2021-12-06 16:57:15,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:15,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872540109] [2021-12-06 16:57:15,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:15,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:15,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 16:57:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:15,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 16:57:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:15,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-06 16:57:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:15,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 16:57:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:15,628 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 4 proven. 115 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 16:57:15,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:15,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872540109] [2021-12-06 16:57:15,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872540109] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:57:15,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607560533] [2021-12-06 16:57:15,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:15,629 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:15,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:15,630 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:57:15,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-06 16:57:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:15,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-06 16:57:15,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:15,827 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 26 proven. 105 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-06 16:57:15,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 16:57:16,223 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 4 proven. 115 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 16:57:16,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607560533] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 16:57:16,223 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 16:57:16,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 28 [2021-12-06 16:57:16,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903473324] [2021-12-06 16:57:16,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 16:57:16,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-12-06 16:57:16,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:16,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-12-06 16:57:16,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=522, Unknown=0, NotChecked=0, Total=756 [2021-12-06 16:57:16,225 INFO L87 Difference]: Start difference. First operand 186 states and 208 transitions. Second operand has 28 states, 28 states have (on average 5.5) internal successors, (154), 28 states have internal predecessors, (154), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 16:57:26,758 WARN L227 SmtUtils]: Spent 10.36s on a formula simplification. DAG size of input: 46 DAG size of output: 16 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 16:57:51,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:51,191 INFO L93 Difference]: Finished difference Result 511 states and 585 transitions. [2021-12-06 16:57:51,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-12-06 16:57:51,191 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 5.5) internal successors, (154), 28 states have internal predecessors, (154), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 84 [2021-12-06 16:57:51,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:51,193 INFO L225 Difference]: With dead ends: 511 [2021-12-06 16:57:51,193 INFO L226 Difference]: Without dead ends: 404 [2021-12-06 16:57:51,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 35.0s TimeCoverageRelationStatistics Valid=633, Invalid=1166, Unknown=7, NotChecked=0, Total=1806 [2021-12-06 16:57:51,195 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 226 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:51,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 830 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 16:57:51,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2021-12-06 16:57:51,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 194. [2021-12-06 16:57:51,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 173 states have (on average 1.138728323699422) internal successors, (197), 181 states have internal predecessors, (197), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2021-12-06 16:57:51,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 210 transitions. [2021-12-06 16:57:51,206 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 210 transitions. Word has length 84 [2021-12-06 16:57:51,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:51,206 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 210 transitions. [2021-12-06 16:57:51,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.5) internal successors, (154), 28 states have internal predecessors, (154), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 16:57:51,207 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 210 transitions. [2021-12-06 16:57:51,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-06 16:57:51,208 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:51,208 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 4, 4, 4, 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] [2021-12-06 16:57:51,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-12-06 16:57:51,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-12-06 16:57:51,408 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:51,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:51,409 INFO L85 PathProgramCache]: Analyzing trace with hash -505354712, now seen corresponding path program 1 times [2021-12-06 16:57:51,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:51,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041538917] [2021-12-06 16:57:51,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:51,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:51,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 16:57:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:51,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 16:57:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:51,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 16:57:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:51,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 16:57:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:51,605 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 4 proven. 493 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 16:57:51,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:51,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041538917] [2021-12-06 16:57:51,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041538917] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:57:51,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88110210] [2021-12-06 16:57:51,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:51,606 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:51,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:51,607 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:57:51,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-06 16:57:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:51,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 16:57:51,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:51,880 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 26 proven. 483 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-06 16:57:51,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 16:57:52,401 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 4 proven. 493 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 16:57:52,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88110210] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 16:57:52,401 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 16:57:52,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 50 [2021-12-06 16:57:52,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391744132] [2021-12-06 16:57:52,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 16:57:52,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-12-06 16:57:52,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:52,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-12-06 16:57:52,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=846, Invalid=1604, Unknown=0, NotChecked=0, Total=2450 [2021-12-06 16:57:52,404 INFO L87 Difference]: Start difference. First operand 194 states and 210 transitions. Second operand has 50 states, 50 states have (on average 5.22) internal successors, (261), 50 states have internal predecessors, (261), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 16:57:52,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:52,835 INFO L93 Difference]: Finished difference Result 1133 states and 1284 transitions. [2021-12-06 16:57:52,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-12-06 16:57:52,836 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 5.22) internal successors, (261), 50 states have internal predecessors, (261), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 118 [2021-12-06 16:57:52,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:52,840 INFO L225 Difference]: With dead ends: 1133 [2021-12-06 16:57:52,840 INFO L226 Difference]: Without dead ends: 1032 [2021-12-06 16:57:52,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1009 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=977, Invalid=1779, Unknown=0, NotChecked=0, Total=2756 [2021-12-06 16:57:52,842 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 763 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:52,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [763 Valid, 674 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 16:57:52,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2021-12-06 16:57:52,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 266. [2021-12-06 16:57:52,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 245 states have (on average 1.1510204081632653) internal successors, (282), 253 states have internal predecessors, (282), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2021-12-06 16:57:52,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 295 transitions. [2021-12-06 16:57:52,869 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 295 transitions. Word has length 118 [2021-12-06 16:57:52,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:52,869 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 295 transitions. [2021-12-06 16:57:52,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 5.22) internal successors, (261), 50 states have internal predecessors, (261), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 16:57:52,869 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 295 transitions. [2021-12-06 16:57:52,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-06 16:57:52,870 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:52,870 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 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, 1] [2021-12-06 16:57:52,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-12-06 16:57:53,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-12-06 16:57:53,072 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:53,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:53,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1706214853, now seen corresponding path program 2 times [2021-12-06 16:57:53,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:53,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244302048] [2021-12-06 16:57:53,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:53,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:53,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 16:57:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:53,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 16:57:53,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:53,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 16:57:53,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:53,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 16:57:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:53,491 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 4 proven. 610 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 16:57:53,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:53,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244302048] [2021-12-06 16:57:53,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244302048] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:57:53,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987317043] [2021-12-06 16:57:53,492 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 16:57:53,492 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:53,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:53,493 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:57:53,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-06 16:57:53,530 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 16:57:53,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 16:57:53,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 16:57:53,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:53,921 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 627 trivial. 0 not checked. [2021-12-06 16:57:53,921 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 16:57:53,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987317043] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 16:57:53,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 16:57:53,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [20] total 26 [2021-12-06 16:57:53,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855169953] [2021-12-06 16:57:53,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 16:57:53,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 16:57:53,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:53,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 16:57:53,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2021-12-06 16:57:53,923 INFO L87 Difference]: Start difference. First operand 266 states and 295 transitions. Second operand has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-06 16:57:54,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:54,139 INFO L93 Difference]: Finished difference Result 288 states and 317 transitions. [2021-12-06 16:57:54,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 16:57:54,139 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 129 [2021-12-06 16:57:54,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:54,141 INFO L225 Difference]: With dead ends: 288 [2021-12-06 16:57:54,141 INFO L226 Difference]: Without dead ends: 287 [2021-12-06 16:57:54,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=91, Invalid=665, Unknown=0, NotChecked=0, Total=756 [2021-12-06 16:57:54,141 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 27 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:54,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 386 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 16:57:54,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-12-06 16:57:54,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 267. [2021-12-06 16:57:54,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 246 states have (on average 1.1504065040650406) internal successors, (283), 254 states have internal predecessors, (283), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2021-12-06 16:57:54,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 296 transitions. [2021-12-06 16:57:54,162 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 296 transitions. Word has length 129 [2021-12-06 16:57:54,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:54,162 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 296 transitions. [2021-12-06 16:57:54,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-06 16:57:54,162 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 296 transitions. [2021-12-06 16:57:54,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-06 16:57:54,163 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:54,163 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 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, 1, 1] [2021-12-06 16:57:54,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-12-06 16:57:54,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:54,365 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:54,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:54,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1353052753, now seen corresponding path program 1 times [2021-12-06 16:57:54,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:54,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45333983] [2021-12-06 16:57:54,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:54,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:54,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 16:57:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:54,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 16:57:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:54,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 16:57:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:54,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 16:57:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:54,692 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 4 proven. 610 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 16:57:54,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:54,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45333983] [2021-12-06 16:57:54,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45333983] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:57:54,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018721315] [2021-12-06 16:57:54,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:54,693 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:54,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:54,694 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:57:54,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-06 16:57:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:54,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 16:57:54,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:55,066 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 627 trivial. 0 not checked. [2021-12-06 16:57:55,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 16:57:55,619 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 627 trivial. 0 not checked. [2021-12-06 16:57:55,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018721315] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 16:57:55,619 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 16:57:55,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 8, 8] total 34 [2021-12-06 16:57:55,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677273091] [2021-12-06 16:57:55,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 16:57:55,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-12-06 16:57:55,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:55,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-12-06 16:57:55,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1016, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 16:57:55,621 INFO L87 Difference]: Start difference. First operand 267 states and 296 transitions. Second operand has 34 states, 34 states have (on average 4.352941176470588) internal successors, (148), 32 states have internal predecessors, (148), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-06 16:57:56,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:56,358 INFO L93 Difference]: Finished difference Result 600 states and 680 transitions. [2021-12-06 16:57:56,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-12-06 16:57:56,358 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.352941176470588) internal successors, (148), 32 states have internal predecessors, (148), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) Word has length 130 [2021-12-06 16:57:56,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 16:57:56,360 INFO L225 Difference]: With dead ends: 600 [2021-12-06 16:57:56,360 INFO L226 Difference]: Without dead ends: 498 [2021-12-06 16:57:56,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=250, Invalid=1472, Unknown=0, NotChecked=0, Total=1722 [2021-12-06 16:57:56,361 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 480 mSDsluCounter, 2099 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 2193 SdHoareTripleChecker+Invalid, 1670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 16:57:56,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [480 Valid, 2193 Invalid, 1670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 16:57:56,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2021-12-06 16:57:56,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 280. [2021-12-06 16:57:56,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 259 states have (on average 1.1467181467181466) internal successors, (297), 267 states have internal predecessors, (297), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2021-12-06 16:57:56,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 310 transitions. [2021-12-06 16:57:56,377 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 310 transitions. Word has length 130 [2021-12-06 16:57:56,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 16:57:56,377 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 310 transitions. [2021-12-06 16:57:56,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.352941176470588) internal successors, (148), 32 states have internal predecessors, (148), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-06 16:57:56,377 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 310 transitions. [2021-12-06 16:57:56,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-06 16:57:56,378 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 16:57:56,378 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 16, 4, 4, 4, 3, 2, 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] [2021-12-06 16:57:56,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-12-06 16:57:56,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:56,578 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 16:57:56,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:56,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1118918707, now seen corresponding path program 1 times [2021-12-06 16:57:56,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:56,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886031810] [2021-12-06 16:57:56,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:56,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:56,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 16:57:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:56,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 16:57:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:56,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 16:57:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:56,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-06 16:57:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:56,914 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 4 proven. 693 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-06 16:57:56,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:56,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886031810] [2021-12-06 16:57:56,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886031810] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 16:57:56,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641492661] [2021-12-06 16:57:56,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:56,915 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 16:57:56,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:56,916 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 16:57:56,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-12-06 16:57:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:57,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 39 conjunts are in the unsatisfiable core [2021-12-06 16:57:57,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:57,496 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 29 proven. 680 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-06 16:57:57,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 16:57:58,847 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 4 proven. 693 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-06 16:57:58,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641492661] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 16:57:58,847 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 16:57:58,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 58 [2021-12-06 16:57:58,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079740470] [2021-12-06 16:57:58,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 16:57:58,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2021-12-06 16:57:58,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:58,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-12-06 16:57:58,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=761, Invalid=2545, Unknown=0, NotChecked=0, Total=3306 [2021-12-06 16:57:58,849 INFO L87 Difference]: Start difference. First operand 280 states and 310 transitions. Second operand has 58 states, 58 states have (on average 5.362068965517241) internal successors, (311), 58 states have internal predecessors, (311), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 16:58:33,317 WARN L227 SmtUtils]: Spent 26.92s on a formula simplification. DAG size of input: 56 DAG size of output: 31 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 16:59:17,424 WARN L227 SmtUtils]: Spent 35.32s on a formula simplification. DAG size of input: 51 DAG size of output: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 16:59:39,098 WARN L227 SmtUtils]: Spent 18.83s on a formula simplification. DAG size of input: 46 DAG size of output: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 16:59:40,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 16:59:53,358 WARN L227 SmtUtils]: Spent 8.93s on a formula simplification. DAG size of input: 41 DAG size of output: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 17:00:06,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 17:00:08,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 17:00:10,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 17:00:13,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 17:00:15,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 17:00:29,106 WARN L227 SmtUtils]: Spent 7.55s on a formula simplification. DAG size of input: 41 DAG size of output: 21 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 17:00:55,877 WARN L227 SmtUtils]: Spent 19.09s on a formula simplification. DAG size of input: 66 DAG size of output: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 17:01:16,600 WARN L227 SmtUtils]: Spent 13.75s on a formula simplification. DAG size of input: 61 DAG size of output: 21 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 17:01:39,221 WARN L227 SmtUtils]: Spent 10.17s on a formula simplification. DAG size of input: 56 DAG size of output: 21 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 17:02:04,550 WARN L227 SmtUtils]: Spent 13.46s on a formula simplification. DAG size of input: 51 DAG size of output: 16 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 17:03:49,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:03:49,748 INFO L93 Difference]: Finished difference Result 874 states and 1006 transitions. [2021-12-06 17:03:49,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-12-06 17:03:49,751 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 5.362068965517241) internal successors, (311), 58 states have internal predecessors, (311), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 135 [2021-12-06 17:03:49,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:03:49,753 INFO L225 Difference]: With dead ends: 874 [2021-12-06 17:03:49,753 INFO L226 Difference]: Without dead ends: 753 [2021-12-06 17:03:49,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2199 ImplicationChecksByTransitivity, 333.2s TimeCoverageRelationStatistics Valid=2613, Invalid=6286, Unknown=31, NotChecked=0, Total=8930 [2021-12-06 17:03:49,756 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 831 mSDsluCounter, 2144 mSDsCounter, 0 mSdLazyCounter, 2000 mSolverCounterSat, 475 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 2269 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 2000 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2021-12-06 17:03:49,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [831 Valid, 2269 Invalid, 2480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 2000 Invalid, 5 Unknown, 0 Unchecked, 18.9s Time] [2021-12-06 17:03:49,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2021-12-06 17:03:49,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 308. [2021-12-06 17:03:49,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 287 states have (on average 1.10801393728223) internal successors, (318), 295 states have internal predecessors, (318), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2021-12-06 17:03:49,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 331 transitions. [2021-12-06 17:03:49,775 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 331 transitions. Word has length 135 [2021-12-06 17:03:49,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:03:49,775 INFO L470 AbstractCegarLoop]: Abstraction has 308 states and 331 transitions. [2021-12-06 17:03:49,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 5.362068965517241) internal successors, (311), 58 states have internal predecessors, (311), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 17:03:49,775 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 331 transitions. [2021-12-06 17:03:49,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-12-06 17:03:49,776 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:03:49,776 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 2, 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] [2021-12-06 17:03:49,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-12-06 17:03:49,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-12-06 17:03:49,977 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 17:03:49,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:03:49,977 INFO L85 PathProgramCache]: Analyzing trace with hash -720186025, now seen corresponding path program 2 times [2021-12-06 17:03:49,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:03:49,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311058942] [2021-12-06 17:03:49,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:03:49,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:03:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:03:50,012 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:03:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:03:50,055 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:03:50,055 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 17:03:50,056 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2021-12-06 17:03:50,057 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2021-12-06 17:03:50,057 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2021-12-06 17:03:50,057 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2021-12-06 17:03:50,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2021-12-06 17:03:50,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2021-12-06 17:03:50,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2021-12-06 17:03:50,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2021-12-06 17:03:50,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2021-12-06 17:03:50,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2021-12-06 17:03:50,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2021-12-06 17:03:50,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2021-12-06 17:03:50,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2021-12-06 17:03:50,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2021-12-06 17:03:50,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2021-12-06 17:03:50,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2021-12-06 17:03:50,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2021-12-06 17:03:50,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2021-12-06 17:03:50,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-06 17:03:50,061 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:03:50,064 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 17:03:50,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:03:50 BoogieIcfgContainer [2021-12-06 17:03:50,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 17:03:50,133 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 17:03:50,133 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 17:03:50,133 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 17:03:50,134 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:57:07" (3/4) ... [2021-12-06 17:03:50,136 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 17:03:50,137 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 17:03:50,137 INFO L158 Benchmark]: Toolchain (without parser) took 403418.06ms. Allocated memory was 119.5MB in the beginning and 174.1MB in the end (delta: 54.5MB). Free memory was 83.2MB in the beginning and 144.5MB in the end (delta: -61.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:03:50,137 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 119.5MB. Free memory is still 99.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:03:50,137 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.45ms. Allocated memory is still 119.5MB. Free memory was 83.0MB in the beginning and 92.5MB in the end (delta: -9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 17:03:50,138 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.68ms. Allocated memory is still 119.5MB. Free memory was 92.5MB in the beginning and 90.6MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 17:03:50,138 INFO L158 Benchmark]: Boogie Preprocessor took 20.32ms. Allocated memory is still 119.5MB. Free memory was 90.6MB in the beginning and 89.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:03:50,138 INFO L158 Benchmark]: RCFGBuilder took 302.10ms. Allocated memory is still 119.5MB. Free memory was 89.5MB in the beginning and 74.7MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 17:03:50,138 INFO L158 Benchmark]: TraceAbstraction took 402818.43ms. Allocated memory was 119.5MB in the beginning and 174.1MB in the end (delta: 54.5MB). Free memory was 74.3MB in the beginning and 145.6MB in the end (delta: -71.2MB). Peak memory consumption was 85.0MB. Max. memory is 16.1GB. [2021-12-06 17:03:50,139 INFO L158 Benchmark]: Witness Printer took 3.58ms. Allocated memory is still 174.1MB. Free memory was 145.5MB in the beginning and 144.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:03:50,140 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 119.5MB. Free memory is still 99.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.45ms. Allocated memory is still 119.5MB. Free memory was 83.0MB in the beginning and 92.5MB in the end (delta: -9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.68ms. Allocated memory is still 119.5MB. Free memory was 92.5MB in the beginning and 90.6MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.32ms. Allocated memory is still 119.5MB. Free memory was 90.6MB in the beginning and 89.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 302.10ms. Allocated memory is still 119.5MB. Free memory was 89.5MB in the beginning and 74.7MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 402818.43ms. Allocated memory was 119.5MB in the beginning and 174.1MB in the end (delta: 54.5MB). Free memory was 74.3MB in the beginning and 145.6MB in the end (delta: -71.2MB). Peak memory consumption was 85.0MB. Max. memory is 16.1GB. * Witness Printer took 3.58ms. Allocated memory is still 174.1MB. Free memory was 145.5MB in the beginning and 144.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 173, overapproximation of bitwiseAnd at line 174. Possible FailurePath: [L221] unsigned int a ; [L222] unsigned int ma = __VERIFIER_nondet_uint(); [L223] signed char ea = __VERIFIER_nondet_char(); [L224] unsigned int b ; [L225] unsigned int mb = __VERIFIER_nondet_uint(); [L226] signed char eb = __VERIFIER_nondet_char(); [L227] unsigned int r_mul ; [L228] unsigned int zero ; [L229] unsigned int one ; [L230] int sb ; [L231] int tmp ; [L232] int tmp___0 ; [L233] int tmp___1 ; [L234] int __retres16 ; VAL [ea=127, eb=0] [L238] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L238] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=127, eb=0] [L238] zero = base2flt(0, 0) [L239] CALL, EXPR base2flt(1, 0) VAL [\old(e)=0, \old(m)=1] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L35] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L47] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24] [L77] EXPR e + 128 [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=1, __retres4=2, e=-24, res=2] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=1, \result=36028797018963970, __retres4=2, e=-24, res=2] [L239] RET, EXPR base2flt(1, 0) VAL [base2flt(1, 0)=36028797018963970, ea=127, eb=0, zero=0] [L239] one = base2flt(1, 0) [L240] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=127, \old(m)=33554432] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L29] COND FALSE !(! m) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L57] COND TRUE 1 VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L59] COND TRUE m >= 1U << 25U VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L64] COND TRUE e >= 127 [L65] __retres4 = 4294967295U VAL [\old(e)=127, \old(m)=33554432, __retres4=4294967295, e=127, m=33554432] [L80] return (__retres4); VAL [\old(e)=127, \old(m)=33554432, \result=4294967295, __retres4=4294967295, e=127, m=33554432] [L240] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=4294967295, ea=127, eb=0, ma=33554432, one=2, zero=0] [L240] a = base2flt(ma, ea) [L241] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=0, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L57] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0] [L77] EXPR e + 128 [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=16777216, __retres4=1, e=0, res=1] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=16777216, \result=36028797018963969, __retres4=1, e=0, res=1] [L241] RET, EXPR base2flt(mb, eb) VAL [a=4294967295, base2flt(mb, eb)=36028797018963969, ea=127, eb=0, ma=33554432, mb=16777216, one=2, zero=0] [L241] b = base2flt(mb, eb) [L242] CALL mulflt(a, b) [L148] unsigned int res ; [L149] unsigned int ma ; [L150] unsigned int mb ; [L151] unsigned long long accu ; [L152] int ea ; [L153] int eb ; [L154] unsigned int tmp ; [L155] unsigned int __retres10 ; VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L158] COND FALSE !(a < b) VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L165] COND FALSE !(! b) [L171] ma = a & ((1U << 24U) - 1U) VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L172] EXPR (int )(a >> 24U) - 128 [L172] ea = (int )(a >> 24U) - 128 [L173] ma = ma | (1U << 24U) [L174] mb = b & ((1U << 24U) - 1U) VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1, ea=127] [L175] (int )(b >> 24U) - 128 VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1, ea=127] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 86 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 402.7s, OverallIterations: 26, TraceHistogramMax: 24, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 389.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 4180 SdHoareTripleChecker+Valid, 21.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4170 mSDsluCounter, 12440 SdHoareTripleChecker+Invalid, 20.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10633 mSDsCounter, 1084 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6333 IncrementalHoareTripleChecker+Invalid, 7422 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1084 mSolverCounterUnsat, 1807 mSDtfsCounter, 6333 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2363 GetRequests, 1915 SyntacticMatches, 0 SemanticMatches, 448 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4440 ImplicationChecksByTransitivity, 370.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=308occurred in iteration=25, InterpolantAutomatonStates: 333, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 25 MinimizatonAttempts, 2809 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 2629 NumberOfCodeBlocks, 2428 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 3223 ConstructedInterpolants, 0 QuantifiedInterpolants, 13323 SizeOfPredicates, 40 NumberOfNonLiveVariables, 2429 ConjunctsInSsa, 229 ConjunctsInUnsatCore, 50 InterpolantComputations, 16 PerfectInterpolantSequences, 3204/8920 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-06 17:03:50,347 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-12-06 17:03:50,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff5615e-028d-4b97-88a2-fddb246f26ff/bin/uautomizer-DrprNOufMa/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