./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg --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 56fa69f51cecff86efdf0a61690ed015021e7cc9e751ed1d6e6cce84bff6d69c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:13:02,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:13:02,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:13:02,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:13:02,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:13:02,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:13:02,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:13:02,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:13:02,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:13:02,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:13:02,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:13:02,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:13:02,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:13:02,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:13:02,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:13:02,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:13:02,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:13:02,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:13:02,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:13:02,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:13:02,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:13:02,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:13:02,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:13:02,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:13:02,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:13:02,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:13:02,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:13:02,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:13:02,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:13:02,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:13:02,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:13:02,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:13:02,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:13:02,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:13:02,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:13:02,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:13:02,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:13:02,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:13:02,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:13:02,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:13:02,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:13:02,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-28 09:13:02,488 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:13:02,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:13:02,488 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:13:02,489 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:13:02,490 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:13:02,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:13:02,490 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:13:02,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:13:02,491 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:13:02,491 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:13:02,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:13:02,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:13:02,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:13:02,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:13:02,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:13:02,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:13:02,493 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-28 09:13:02,494 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:13:02,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:13:02,494 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:13:02,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:13:02,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:13:02,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:13:02,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:13:02,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:13:02,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:13:02,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:13:02,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:13:02,497 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:13:02,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:13:02,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:13:02,498 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:13:02,498 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_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56fa69f51cecff86efdf0a61690ed015021e7cc9e751ed1d6e6cce84bff6d69c [2021-10-28 09:13:02,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:13:02,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:13:02,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:13:02,780 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:13:02,781 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:13:02,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2021-10-28 09:13:02,843 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/data/c9aaa314b/8ff1b4103a8547e4bc649736306568c0/FLAG779b14af9 [2021-10-28 09:13:03,258 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:13:03,258 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2021-10-28 09:13:03,267 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/data/c9aaa314b/8ff1b4103a8547e4bc649736306568c0/FLAG779b14af9 [2021-10-28 09:13:03,644 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/data/c9aaa314b/8ff1b4103a8547e4bc649736306568c0 [2021-10-28 09:13:03,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:13:03,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:13:03,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:13:03,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:13:03,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:13:03,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:13:03" (1/1) ... [2021-10-28 09:13:03,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad88aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:03, skipping insertion in model container [2021-10-28 09:13:03,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:13:03" (1/1) ... [2021-10-28 09:13:03,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:13:03,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:13:03,859 WARN L228 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_90c048ee-4889-46b0-9a4c-76a5fba98894/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c[423,436] [2021-10-28 09:13:03,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:13:03,918 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:13:03,929 WARN L228 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_90c048ee-4889-46b0-9a4c-76a5fba98894/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c[423,436] [2021-10-28 09:13:03,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:13:03,973 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:13:03,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:03 WrapperNode [2021-10-28 09:13:03,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:13:03,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:13:03,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:13:03,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:13:03,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:03" (1/1) ... [2021-10-28 09:13:03,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:03" (1/1) ... [2021-10-28 09:13:04,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:13:04,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:13:04,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:13:04,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:13:04,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:03" (1/1) ... [2021-10-28 09:13:04,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:03" (1/1) ... [2021-10-28 09:13:04,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:03" (1/1) ... [2021-10-28 09:13:04,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:03" (1/1) ... [2021-10-28 09:13:04,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:03" (1/1) ... [2021-10-28 09:13:04,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:03" (1/1) ... [2021-10-28 09:13:04,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:03" (1/1) ... [2021-10-28 09:13:04,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:13:04,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:13:04,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:13:04,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:13:04,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:03" (1/1) ... [2021-10-28 09:13:04,122 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:13:04,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:04,144 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:04,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:13:04,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:13:04,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:13:04,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:13:04,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:13:04,634 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:13:04,634 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-10-28 09:13:04,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:13:04 BoogieIcfgContainer [2021-10-28 09:13:04,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:13:04,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:13:04,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:13:04,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:13:04,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:13:03" (1/3) ... [2021-10-28 09:13:04,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30653319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:13:04, skipping insertion in model container [2021-10-28 09:13:04,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:03" (2/3) ... [2021-10-28 09:13:04,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30653319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:13:04, skipping insertion in model container [2021-10-28 09:13:04,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:13:04" (3/3) ... [2021-10-28 09:13:04,645 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_5a.c.cil.c [2021-10-28 09:13:04,650 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:13:04,650 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2021-10-28 09:13:04,697 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:13:04,704 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 [2021-10-28 09:13:04,704 INFO L340 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2021-10-28 09:13:04,726 INFO L276 IsEmpty]: Start isEmpty. Operand has 139 states, 104 states have (on average 1.8365384615384615) internal successors, (191), 138 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:04,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 09:13:04,732 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:04,732 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:04,733 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:04,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:04,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1807791520, now seen corresponding path program 1 times [2021-10-28 09:13:04,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:04,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915666391] [2021-10-28 09:13:04,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:04,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:04,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:04,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:04,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915666391] [2021-10-28 09:13:04,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915666391] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:04,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:13:04,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:13:04,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104000397] [2021-10-28 09:13:04,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:13:04,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:04,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:13:04,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:13:04,915 INFO L87 Difference]: Start difference. First operand has 139 states, 104 states have (on average 1.8365384615384615) internal successors, (191), 138 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:04,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:04,945 INFO L93 Difference]: Finished difference Result 258 states and 354 transitions. [2021-10-28 09:13:04,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:13:04,947 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-28 09:13:04,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:04,958 INFO L225 Difference]: With dead ends: 258 [2021-10-28 09:13:04,958 INFO L226 Difference]: Without dead ends: 122 [2021-10-28 09:13:04,961 INFO L786 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 [2021-10-28 09:13:05,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-28 09:13:05,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-10-28 09:13:05,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 90 states have (on average 1.6444444444444444) internal successors, (148), 121 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:05,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 148 transitions. [2021-10-28 09:13:05,030 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 148 transitions. Word has length 7 [2021-10-28 09:13:05,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:05,031 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 148 transitions. [2021-10-28 09:13:05,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:05,032 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 148 transitions. [2021-10-28 09:13:05,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 09:13:05,032 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:05,033 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:05,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:13:05,033 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:05,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:05,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1806850254, now seen corresponding path program 1 times [2021-10-28 09:13:05,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:05,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025596079] [2021-10-28 09:13:05,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:05,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:05,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:05,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:05,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:05,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025596079] [2021-10-28 09:13:05,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025596079] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:05,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:13:05,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:13:05,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465796277] [2021-10-28 09:13:05,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:13:05,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:05,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:13:05,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:13:05,096 INFO L87 Difference]: Start difference. First operand 122 states and 148 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:05,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:05,277 INFO L93 Difference]: Finished difference Result 255 states and 313 transitions. [2021-10-28 09:13:05,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:13:05,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-28 09:13:05,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:05,280 INFO L225 Difference]: With dead ends: 255 [2021-10-28 09:13:05,283 INFO L226 Difference]: Without dead ends: 150 [2021-10-28 09:13:05,285 INFO L786 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 [2021-10-28 09:13:05,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-10-28 09:13:05,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 146. [2021-10-28 09:13:05,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 114 states have (on average 1.5263157894736843) internal successors, (174), 145 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:05,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 174 transitions. [2021-10-28 09:13:05,316 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 174 transitions. Word has length 7 [2021-10-28 09:13:05,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:05,316 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 174 transitions. [2021-10-28 09:13:05,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:05,317 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 174 transitions. [2021-10-28 09:13:05,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 09:13:05,318 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:05,318 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:05,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:13:05,318 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:05,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:05,319 INFO L85 PathProgramCache]: Analyzing trace with hash 641273941, now seen corresponding path program 1 times [2021-10-28 09:13:05,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:05,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142061675] [2021-10-28 09:13:05,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:05,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:05,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:05,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:05,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142061675] [2021-10-28 09:13:05,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142061675] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:05,400 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:13:05,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:13:05,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665412790] [2021-10-28 09:13:05,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:13:05,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:05,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:13:05,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:13:05,403 INFO L87 Difference]: Start difference. First operand 146 states and 174 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:05,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:05,575 INFO L93 Difference]: Finished difference Result 194 states and 226 transitions. [2021-10-28 09:13:05,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:13:05,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-28 09:13:05,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:05,578 INFO L225 Difference]: With dead ends: 194 [2021-10-28 09:13:05,578 INFO L226 Difference]: Without dead ends: 190 [2021-10-28 09:13:05,578 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:13:05,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-10-28 09:13:05,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 148. [2021-10-28 09:13:05,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 118 states have (on average 1.4915254237288136) internal successors, (176), 147 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:05,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 176 transitions. [2021-10-28 09:13:05,591 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 176 transitions. Word has length 11 [2021-10-28 09:13:05,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:05,591 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 176 transitions. [2021-10-28 09:13:05,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:05,592 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 176 transitions. [2021-10-28 09:13:05,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 09:13:05,593 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:05,593 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:05,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 09:13:05,594 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:05,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:05,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1595344206, now seen corresponding path program 1 times [2021-10-28 09:13:05,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:05,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374691759] [2021-10-28 09:13:05,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:05,595 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:05,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:05,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:05,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374691759] [2021-10-28 09:13:05,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374691759] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:05,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:13:05,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:13:05,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928666323] [2021-10-28 09:13:05,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:13:05,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:05,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:13:05,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:13:05,664 INFO L87 Difference]: Start difference. First operand 148 states and 176 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:05,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:05,841 INFO L93 Difference]: Finished difference Result 317 states and 375 transitions. [2021-10-28 09:13:05,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:13:05,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-28 09:13:05,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:05,843 INFO L225 Difference]: With dead ends: 317 [2021-10-28 09:13:05,843 INFO L226 Difference]: Without dead ends: 202 [2021-10-28 09:13:05,844 INFO L786 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 [2021-10-28 09:13:05,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-10-28 09:13:05,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 154. [2021-10-28 09:13:05,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 126 states have (on average 1.4603174603174602) internal successors, (184), 153 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:05,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 184 transitions. [2021-10-28 09:13:05,855 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 184 transitions. Word has length 12 [2021-10-28 09:13:05,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:05,856 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 184 transitions. [2021-10-28 09:13:05,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:05,856 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 184 transitions. [2021-10-28 09:13:05,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 09:13:05,857 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:05,857 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:05,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 09:13:05,858 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:05,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:05,858 INFO L85 PathProgramCache]: Analyzing trace with hash -2056836231, now seen corresponding path program 1 times [2021-10-28 09:13:05,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:05,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276280903] [2021-10-28 09:13:05,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:05,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:05,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:05,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:05,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276280903] [2021-10-28 09:13:05,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276280903] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:05,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:13:05,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:13:05,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605689291] [2021-10-28 09:13:05,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:13:05,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:05,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:13:05,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:13:05,921 INFO L87 Difference]: Start difference. First operand 154 states and 184 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:06,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:06,019 INFO L93 Difference]: Finished difference Result 199 states and 234 transitions. [2021-10-28 09:13:06,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:13:06,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-28 09:13:06,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:06,022 INFO L225 Difference]: With dead ends: 199 [2021-10-28 09:13:06,022 INFO L226 Difference]: Without dead ends: 193 [2021-10-28 09:13:06,023 INFO L786 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 [2021-10-28 09:13:06,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-10-28 09:13:06,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 151. [2021-10-28 09:13:06,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 128 states have (on average 1.421875) internal successors, (182), 150 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:06,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 182 transitions. [2021-10-28 09:13:06,034 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 182 transitions. Word has length 13 [2021-10-28 09:13:06,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:06,035 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 182 transitions. [2021-10-28 09:13:06,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:06,035 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 182 transitions. [2021-10-28 09:13:06,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 09:13:06,037 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:06,037 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:06,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 09:13:06,037 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:06,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:06,038 INFO L85 PathProgramCache]: Analyzing trace with hash 465285246, now seen corresponding path program 1 times [2021-10-28 09:13:06,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:06,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143274755] [2021-10-28 09:13:06,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:06,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:06,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:06,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:06,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143274755] [2021-10-28 09:13:06,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143274755] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:06,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271296783] [2021-10-28 09:13:06,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:06,078 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:06,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:06,080 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:06,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 09:13:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:06,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:13:06,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:06,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:06,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271296783] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:06,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:13:06,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-28 09:13:06,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075292243] [2021-10-28 09:13:06,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:13:06,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:06,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:13:06,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:13:06,250 INFO L87 Difference]: Start difference. First operand 151 states and 182 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:06,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:06,367 INFO L93 Difference]: Finished difference Result 230 states and 270 transitions. [2021-10-28 09:13:06,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:13:06,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-28 09:13:06,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:06,369 INFO L225 Difference]: With dead ends: 230 [2021-10-28 09:13:06,370 INFO L226 Difference]: Without dead ends: 226 [2021-10-28 09:13:06,370 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:13:06,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-10-28 09:13:06,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 144. [2021-10-28 09:13:06,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 124 states have (on average 1.4112903225806452) internal successors, (175), 143 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:06,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 175 transitions. [2021-10-28 09:13:06,393 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 175 transitions. Word has length 13 [2021-10-28 09:13:06,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:06,394 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 175 transitions. [2021-10-28 09:13:06,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:06,394 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 175 transitions. [2021-10-28 09:13:06,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 09:13:06,400 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:06,400 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:06,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:06,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:06,616 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:06,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:06,617 INFO L85 PathProgramCache]: Analyzing trace with hash 662586488, now seen corresponding path program 1 times [2021-10-28 09:13:06,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:06,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896862694] [2021-10-28 09:13:06,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:06,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:06,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:06,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:06,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896862694] [2021-10-28 09:13:06,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896862694] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:06,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:13:06,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:13:06,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809182921] [2021-10-28 09:13:06,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:13:06,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:06,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:13:06,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:13:06,679 INFO L87 Difference]: Start difference. First operand 144 states and 175 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:06,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:06,761 INFO L93 Difference]: Finished difference Result 186 states and 219 transitions. [2021-10-28 09:13:06,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:13:06,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-28 09:13:06,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:06,763 INFO L225 Difference]: With dead ends: 186 [2021-10-28 09:13:06,763 INFO L226 Difference]: Without dead ends: 182 [2021-10-28 09:13:06,764 INFO L786 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 [2021-10-28 09:13:06,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-10-28 09:13:06,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 136. [2021-10-28 09:13:06,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 120 states have (on average 1.3916666666666666) internal successors, (167), 135 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:06,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 167 transitions. [2021-10-28 09:13:06,786 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 167 transitions. Word has length 14 [2021-10-28 09:13:06,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:06,787 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 167 transitions. [2021-10-28 09:13:06,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:06,788 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 167 transitions. [2021-10-28 09:13:06,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 09:13:06,793 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:06,794 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:06,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 09:13:06,794 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:06,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:06,795 INFO L85 PathProgramCache]: Analyzing trace with hash -47207071, now seen corresponding path program 1 times [2021-10-28 09:13:06,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:06,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922191079] [2021-10-28 09:13:06,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:06,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:06,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:06,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:06,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922191079] [2021-10-28 09:13:06,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922191079] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:06,882 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:13:06,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:13:06,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687177683] [2021-10-28 09:13:06,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:13:06,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:06,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:13:06,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:13:06,884 INFO L87 Difference]: Start difference. First operand 136 states and 167 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:06,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:06,978 INFO L93 Difference]: Finished difference Result 184 states and 218 transitions. [2021-10-28 09:13:06,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:13:06,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-28 09:13:06,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:06,980 INFO L225 Difference]: With dead ends: 184 [2021-10-28 09:13:06,980 INFO L226 Difference]: Without dead ends: 182 [2021-10-28 09:13:06,981 INFO L786 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 [2021-10-28 09:13:06,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-10-28 09:13:06,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 138. [2021-10-28 09:13:06,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 123 states have (on average 1.3739837398373984) internal successors, (169), 137 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:06,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 169 transitions. [2021-10-28 09:13:06,990 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 169 transitions. Word has length 15 [2021-10-28 09:13:06,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:06,991 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 169 transitions. [2021-10-28 09:13:06,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:06,991 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 169 transitions. [2021-10-28 09:13:06,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 09:13:06,992 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:06,992 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:06,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 09:13:06,993 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:06,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:06,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1172929667, now seen corresponding path program 1 times [2021-10-28 09:13:06,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:06,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051393215] [2021-10-28 09:13:06,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:06,994 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:07,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:07,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:07,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051393215] [2021-10-28 09:13:07,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051393215] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:07,047 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:13:07,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:13:07,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119524712] [2021-10-28 09:13:07,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:13:07,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:07,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:13:07,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:13:07,049 INFO L87 Difference]: Start difference. First operand 138 states and 169 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:07,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:07,125 INFO L93 Difference]: Finished difference Result 182 states and 217 transitions. [2021-10-28 09:13:07,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:13:07,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-28 09:13:07,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:07,127 INFO L225 Difference]: With dead ends: 182 [2021-10-28 09:13:07,128 INFO L226 Difference]: Without dead ends: 180 [2021-10-28 09:13:07,128 INFO L786 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 [2021-10-28 09:13:07,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-10-28 09:13:07,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 132. [2021-10-28 09:13:07,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 119 states have (on average 1.361344537815126) internal successors, (162), 131 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:07,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 162 transitions. [2021-10-28 09:13:07,136 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 162 transitions. Word has length 16 [2021-10-28 09:13:07,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:07,137 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 162 transitions. [2021-10-28 09:13:07,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:07,137 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 162 transitions. [2021-10-28 09:13:07,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 09:13:07,138 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:07,138 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:07,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 09:13:07,138 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:07,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:07,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1012839294, now seen corresponding path program 1 times [2021-10-28 09:13:07,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:07,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966907402] [2021-10-28 09:13:07,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:07,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:07,168 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:13:07,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:07,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966907402] [2021-10-28 09:13:07,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966907402] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:07,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:13:07,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:13:07,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241679054] [2021-10-28 09:13:07,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:13:07,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:07,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:13:07,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:13:07,170 INFO L87 Difference]: Start difference. First operand 132 states and 162 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:07,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:07,252 INFO L93 Difference]: Finished difference Result 214 states and 250 transitions. [2021-10-28 09:13:07,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:13:07,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-28 09:13:07,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:07,254 INFO L225 Difference]: With dead ends: 214 [2021-10-28 09:13:07,254 INFO L226 Difference]: Without dead ends: 210 [2021-10-28 09:13:07,255 INFO L786 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 [2021-10-28 09:13:07,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-10-28 09:13:07,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 123. [2021-10-28 09:13:07,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 113 states have (on average 1.3539823008849559) internal successors, (153), 122 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:07,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 153 transitions. [2021-10-28 09:13:07,266 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 153 transitions. Word has length 17 [2021-10-28 09:13:07,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:07,266 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 153 transitions. [2021-10-28 09:13:07,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:07,267 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 153 transitions. [2021-10-28 09:13:07,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 09:13:07,267 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:07,268 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:07,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 09:13:07,268 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:07,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:07,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1503531701, now seen corresponding path program 1 times [2021-10-28 09:13:07,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:07,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66110937] [2021-10-28 09:13:07,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:07,270 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:07,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:07,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:07,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66110937] [2021-10-28 09:13:07,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66110937] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:07,349 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:13:07,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:13:07,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579069602] [2021-10-28 09:13:07,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:13:07,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:07,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:13:07,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:13:07,352 INFO L87 Difference]: Start difference. First operand 123 states and 153 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:07,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:07,428 INFO L93 Difference]: Finished difference Result 167 states and 200 transitions. [2021-10-28 09:13:07,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:13:07,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-28 09:13:07,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:07,431 INFO L225 Difference]: With dead ends: 167 [2021-10-28 09:13:07,431 INFO L226 Difference]: Without dead ends: 165 [2021-10-28 09:13:07,434 INFO L786 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 [2021-10-28 09:13:07,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-10-28 09:13:07,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 118. [2021-10-28 09:13:07,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 110 states have (on average 1.3454545454545455) internal successors, (148), 117 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:07,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 148 transitions. [2021-10-28 09:13:07,444 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 148 transitions. Word has length 18 [2021-10-28 09:13:07,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:07,445 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 148 transitions. [2021-10-28 09:13:07,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:07,445 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 148 transitions. [2021-10-28 09:13:07,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 09:13:07,446 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:07,446 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:07,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 09:13:07,449 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:07,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:07,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1714169845, now seen corresponding path program 1 times [2021-10-28 09:13:07,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:07,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428326695] [2021-10-28 09:13:07,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:07,452 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:07,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:07,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:07,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428326695] [2021-10-28 09:13:07,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428326695] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:07,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:13:07,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:13:07,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540238308] [2021-10-28 09:13:07,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:13:07,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:07,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:13:07,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:13:07,509 INFO L87 Difference]: Start difference. First operand 118 states and 148 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:07,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:07,563 INFO L93 Difference]: Finished difference Result 185 states and 229 transitions. [2021-10-28 09:13:07,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:13:07,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-28 09:13:07,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:07,566 INFO L225 Difference]: With dead ends: 185 [2021-10-28 09:13:07,566 INFO L226 Difference]: Without dead ends: 110 [2021-10-28 09:13:07,566 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:13:07,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-10-28 09:13:07,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2021-10-28 09:13:07,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 102 states have (on average 1.3235294117647058) internal successors, (135), 109 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:07,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 135 transitions. [2021-10-28 09:13:07,575 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 135 transitions. Word has length 20 [2021-10-28 09:13:07,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:07,575 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 135 transitions. [2021-10-28 09:13:07,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:07,576 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 135 transitions. [2021-10-28 09:13:07,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 09:13:07,577 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:07,577 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-10-28 09:13:07,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 09:13:07,577 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:07,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:07,578 INFO L85 PathProgramCache]: Analyzing trace with hash 120036563, now seen corresponding path program 1 times [2021-10-28 09:13:07,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:07,578 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844769982] [2021-10-28 09:13:07,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:07,579 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:07,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:07,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:07,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844769982] [2021-10-28 09:13:07,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844769982] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:07,654 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:13:07,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:13:07,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484003982] [2021-10-28 09:13:07,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:13:07,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:07,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:13:07,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:13:07,656 INFO L87 Difference]: Start difference. First operand 110 states and 135 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:07,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:07,715 INFO L93 Difference]: Finished difference Result 200 states and 242 transitions. [2021-10-28 09:13:07,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:13:07,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-28 09:13:07,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:07,716 INFO L225 Difference]: With dead ends: 200 [2021-10-28 09:13:07,716 INFO L226 Difference]: Without dead ends: 106 [2021-10-28 09:13:07,718 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:13:07,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-10-28 09:13:07,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2021-10-28 09:13:07,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 94 states have (on average 1.297872340425532) internal successors, (122), 101 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:07,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2021-10-28 09:13:07,730 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 29 [2021-10-28 09:13:07,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:07,730 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2021-10-28 09:13:07,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:07,730 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2021-10-28 09:13:07,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-28 09:13:07,733 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:07,733 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:07,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 09:13:07,734 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:07,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:07,734 INFO L85 PathProgramCache]: Analyzing trace with hash -53723030, now seen corresponding path program 1 times [2021-10-28 09:13:07,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:07,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72886624] [2021-10-28 09:13:07,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:07,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:07,796 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:07,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:07,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72886624] [2021-10-28 09:13:07,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72886624] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:07,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009514845] [2021-10-28 09:13:07,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:07,798 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:07,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:07,800 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:07,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 09:13:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:07,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:13:07,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:07,994 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:07,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009514845] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:07,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:07,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-28 09:13:07,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487360500] [2021-10-28 09:13:08,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:13:08,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:08,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:13:08,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:13:08,001 INFO L87 Difference]: Start difference. First operand 102 states and 122 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:08,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:08,094 INFO L93 Difference]: Finished difference Result 248 states and 290 transitions. [2021-10-28 09:13:08,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:13:08,094 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-28 09:13:08,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:08,096 INFO L225 Difference]: With dead ends: 248 [2021-10-28 09:13:08,096 INFO L226 Difference]: Without dead ends: 165 [2021-10-28 09:13:08,101 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:13:08,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-10-28 09:13:08,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 112. [2021-10-28 09:13:08,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 104 states have (on average 1.2884615384615385) internal successors, (134), 111 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:08,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 134 transitions. [2021-10-28 09:13:08,109 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 134 transitions. Word has length 33 [2021-10-28 09:13:08,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:08,110 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 134 transitions. [2021-10-28 09:13:08,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:08,110 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 134 transitions. [2021-10-28 09:13:08,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 09:13:08,112 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:08,112 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:08,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:08,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-28 09:13:08,328 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:08,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:08,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1040699320, now seen corresponding path program 1 times [2021-10-28 09:13:08,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:08,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615021085] [2021-10-28 09:13:08,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:08,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:08,405 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:08,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:08,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615021085] [2021-10-28 09:13:08,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615021085] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:08,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509848047] [2021-10-28 09:13:08,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:08,406 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:08,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:08,408 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:08,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 09:13:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:08,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 09:13:08,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:08,612 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 09:13:08,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509848047] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:08,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:13:08,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2021-10-28 09:13:08,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444520090] [2021-10-28 09:13:08,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:13:08,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:08,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:13:08,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:13:08,617 INFO L87 Difference]: Start difference. First operand 112 states and 134 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:08,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:08,762 INFO L93 Difference]: Finished difference Result 212 states and 254 transitions. [2021-10-28 09:13:08,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:13:08,762 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-28 09:13:08,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:08,763 INFO L225 Difference]: With dead ends: 212 [2021-10-28 09:13:08,763 INFO L226 Difference]: Without dead ends: 95 [2021-10-28 09:13:08,764 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:13:08,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-28 09:13:08,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 91. [2021-10-28 09:13:08,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 83 states have (on average 1.2771084337349397) internal successors, (106), 90 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:08,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 106 transitions. [2021-10-28 09:13:08,771 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 106 transitions. Word has length 34 [2021-10-28 09:13:08,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:08,771 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 106 transitions. [2021-10-28 09:13:08,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:08,771 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 106 transitions. [2021-10-28 09:13:08,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 09:13:08,772 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:08,772 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:08,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:08,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-28 09:13:08,973 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:08,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:08,973 INFO L85 PathProgramCache]: Analyzing trace with hash 262910457, now seen corresponding path program 1 times [2021-10-28 09:13:08,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:08,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197727058] [2021-10-28 09:13:08,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:08,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:09,031 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:09,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:09,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197727058] [2021-10-28 09:13:09,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197727058] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:09,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527586249] [2021-10-28 09:13:09,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:09,032 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:09,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:09,033 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:09,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 09:13:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:09,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 09:13:09,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:09,262 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 09:13:09,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527586249] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:09,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:13:09,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2021-10-28 09:13:09,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892545514] [2021-10-28 09:13:09,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:13:09,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:09,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:13:09,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:13:09,265 INFO L87 Difference]: Start difference. First operand 91 states and 106 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:09,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:09,377 INFO L93 Difference]: Finished difference Result 120 states and 135 transitions. [2021-10-28 09:13:09,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:13:09,378 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-10-28 09:13:09,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:09,379 INFO L225 Difference]: With dead ends: 120 [2021-10-28 09:13:09,379 INFO L226 Difference]: Without dead ends: 95 [2021-10-28 09:13:09,380 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:13:09,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-28 09:13:09,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 91. [2021-10-28 09:13:09,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 83 states have (on average 1.2650602409638554) internal successors, (105), 90 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:09,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 105 transitions. [2021-10-28 09:13:09,387 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 105 transitions. Word has length 38 [2021-10-28 09:13:09,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:09,388 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 105 transitions. [2021-10-28 09:13:09,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:09,388 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 105 transitions. [2021-10-28 09:13:09,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-28 09:13:09,389 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:09,389 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:09,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:09,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-28 09:13:09,602 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:09,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:09,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1498651123, now seen corresponding path program 1 times [2021-10-28 09:13:09,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:09,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329098373] [2021-10-28 09:13:09,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:09,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:09,660 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:09,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:09,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329098373] [2021-10-28 09:13:09,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329098373] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:09,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469590459] [2021-10-28 09:13:09,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:09,662 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:09,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:09,663 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:09,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 09:13:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:09,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 09:13:09,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:09,993 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 09:13:09,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469590459] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:09,994 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:13:09,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2021-10-28 09:13:09,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575503695] [2021-10-28 09:13:09,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:13:09,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:09,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:13:09,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:13:09,996 INFO L87 Difference]: Start difference. First operand 91 states and 105 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:10,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:10,173 INFO L93 Difference]: Finished difference Result 141 states and 160 transitions. [2021-10-28 09:13:10,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:13:10,174 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-10-28 09:13:10,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:10,174 INFO L225 Difference]: With dead ends: 141 [2021-10-28 09:13:10,175 INFO L226 Difference]: Without dead ends: 93 [2021-10-28 09:13:10,175 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:13:10,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-28 09:13:10,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2021-10-28 09:13:10,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 83 states have (on average 1.2409638554216869) internal successors, (103), 90 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:10,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2021-10-28 09:13:10,182 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 40 [2021-10-28 09:13:10,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:10,182 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 103 transitions. [2021-10-28 09:13:10,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:10,183 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2021-10-28 09:13:10,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-28 09:13:10,183 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:10,183 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:10,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:10,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-28 09:13:10,384 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:10,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:10,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1227759650, now seen corresponding path program 1 times [2021-10-28 09:13:10,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:10,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694127315] [2021-10-28 09:13:10,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:10,385 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:10,453 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:10,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:10,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694127315] [2021-10-28 09:13:10,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694127315] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:10,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100389443] [2021-10-28 09:13:10,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:10,456 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:10,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:10,473 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:10,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 09:13:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:10,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:13:10,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:10,717 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 09:13:10,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100389443] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:10,717 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:13:10,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2021-10-28 09:13:10,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238674537] [2021-10-28 09:13:10,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:13:10,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:10,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:13:10,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:13:10,719 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:10,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:10,815 INFO L93 Difference]: Finished difference Result 219 states and 239 transitions. [2021-10-28 09:13:10,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:13:10,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-10-28 09:13:10,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:10,817 INFO L225 Difference]: With dead ends: 219 [2021-10-28 09:13:10,817 INFO L226 Difference]: Without dead ends: 196 [2021-10-28 09:13:10,817 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:13:10,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-10-28 09:13:10,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 118. [2021-10-28 09:13:10,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 110 states have (on average 1.2272727272727273) internal successors, (135), 117 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:10,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 135 transitions. [2021-10-28 09:13:10,840 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 135 transitions. Word has length 44 [2021-10-28 09:13:10,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:10,841 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 135 transitions. [2021-10-28 09:13:10,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:10,841 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 135 transitions. [2021-10-28 09:13:10,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-28 09:13:10,841 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:10,842 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:10,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:11,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-28 09:13:11,055 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:11,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:11,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1238971132, now seen corresponding path program 1 times [2021-10-28 09:13:11,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:11,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332746853] [2021-10-28 09:13:11,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:11,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:11,114 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:11,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:11,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332746853] [2021-10-28 09:13:11,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332746853] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:11,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830356656] [2021-10-28 09:13:11,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:11,115 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:11,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:11,116 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:11,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 09:13:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:11,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 09:13:11,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:11,484 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:11,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830356656] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:11,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:11,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-28 09:13:11,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908187046] [2021-10-28 09:13:11,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:13:11,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:11,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:13:11,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:13:11,488 INFO L87 Difference]: Start difference. First operand 118 states and 135 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:11,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:11,603 INFO L93 Difference]: Finished difference Result 214 states and 245 transitions. [2021-10-28 09:13:11,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:13:11,603 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-10-28 09:13:11,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:11,604 INFO L225 Difference]: With dead ends: 214 [2021-10-28 09:13:11,604 INFO L226 Difference]: Without dead ends: 120 [2021-10-28 09:13:11,605 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:13:11,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-10-28 09:13:11,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 118. [2021-10-28 09:13:11,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 117 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:11,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 134 transitions. [2021-10-28 09:13:11,615 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 134 transitions. Word has length 46 [2021-10-28 09:13:11,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:11,615 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 134 transitions. [2021-10-28 09:13:11,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:11,615 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 134 transitions. [2021-10-28 09:13:11,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-28 09:13:11,616 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:11,616 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 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, 1, 1, 1] [2021-10-28 09:13:11,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:11,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:11,832 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:11,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:11,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1279868005, now seen corresponding path program 1 times [2021-10-28 09:13:11,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:11,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500526901] [2021-10-28 09:13:11,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:11,833 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:11,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:11,885 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:11,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:11,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500526901] [2021-10-28 09:13:11,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500526901] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:11,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602146377] [2021-10-28 09:13:11,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:11,887 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:11,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:11,888 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:11,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 09:13:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:12,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:13:12,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:12,209 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:12,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602146377] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:12,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:12,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-28 09:13:12,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746845677] [2021-10-28 09:13:12,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:13:12,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:12,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:13:12,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:13:12,212 INFO L87 Difference]: Start difference. First operand 118 states and 134 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:12,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:12,281 INFO L93 Difference]: Finished difference Result 261 states and 295 transitions. [2021-10-28 09:13:12,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:13:12,282 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-10-28 09:13:12,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:12,283 INFO L225 Difference]: With dead ends: 261 [2021-10-28 09:13:12,284 INFO L226 Difference]: Without dead ends: 170 [2021-10-28 09:13:12,284 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:13:12,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-10-28 09:13:12,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 123. [2021-10-28 09:13:12,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 115 states have (on average 1.2173913043478262) internal successors, (140), 122 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:12,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 140 transitions. [2021-10-28 09:13:12,294 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 140 transitions. Word has length 50 [2021-10-28 09:13:12,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:12,294 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 140 transitions. [2021-10-28 09:13:12,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:12,294 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 140 transitions. [2021-10-28 09:13:12,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 09:13:12,295 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:12,295 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:12,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:12,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:12,520 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:12,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:12,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1864699345, now seen corresponding path program 2 times [2021-10-28 09:13:12,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:12,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179407904] [2021-10-28 09:13:12,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:12,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:12,597 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:12,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:12,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179407904] [2021-10-28 09:13:12,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179407904] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:12,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677376778] [2021-10-28 09:13:12,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:13:12,598 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:12,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:12,599 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:12,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 09:13:12,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 09:13:12,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:12,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:13:12,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:12,950 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-28 09:13:12,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677376778] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:12,950 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:13:12,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2021-10-28 09:13:12,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125087672] [2021-10-28 09:13:12,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:13:12,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:12,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:13:12,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:13:12,952 INFO L87 Difference]: Start difference. First operand 123 states and 140 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:13,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:13,050 INFO L93 Difference]: Finished difference Result 186 states and 204 transitions. [2021-10-28 09:13:13,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:13:13,051 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-10-28 09:13:13,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:13,052 INFO L225 Difference]: With dead ends: 186 [2021-10-28 09:13:13,052 INFO L226 Difference]: Without dead ends: 185 [2021-10-28 09:13:13,053 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:13:13,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-10-28 09:13:13,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 145. [2021-10-28 09:13:13,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 137 states have (on average 1.2116788321167884) internal successors, (166), 144 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:13,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 166 transitions. [2021-10-28 09:13:13,063 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 166 transitions. Word has length 51 [2021-10-28 09:13:13,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:13,064 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 166 transitions. [2021-10-28 09:13:13,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:13,064 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 166 transitions. [2021-10-28 09:13:13,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 09:13:13,065 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:13,065 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:13,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:13,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-10-28 09:13:13,292 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:13,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:13,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1557878557, now seen corresponding path program 1 times [2021-10-28 09:13:13,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:13,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155302225] [2021-10-28 09:13:13,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:13,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:13,352 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:13,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:13,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155302225] [2021-10-28 09:13:13,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155302225] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:13,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228128635] [2021-10-28 09:13:13,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:13,353 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:13,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:13,354 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:13,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-28 09:13:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:13,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:13:13,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:13,795 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:13,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228128635] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:13,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:13,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-28 09:13:13,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973863048] [2021-10-28 09:13:13,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:13:13,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:13,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:13:13,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:13:13,799 INFO L87 Difference]: Start difference. First operand 145 states and 166 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:13,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:13,931 INFO L93 Difference]: Finished difference Result 263 states and 302 transitions. [2021-10-28 09:13:13,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:13:13,935 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-10-28 09:13:13,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:13,936 INFO L225 Difference]: With dead ends: 263 [2021-10-28 09:13:13,936 INFO L226 Difference]: Without dead ends: 147 [2021-10-28 09:13:13,936 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:13:13,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-10-28 09:13:13,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2021-10-28 09:13:13,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 137 states have (on average 1.2043795620437956) internal successors, (165), 144 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:13,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 165 transitions. [2021-10-28 09:13:13,947 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 165 transitions. Word has length 51 [2021-10-28 09:13:13,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:13,948 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 165 transitions. [2021-10-28 09:13:13,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:13,948 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 165 transitions. [2021-10-28 09:13:13,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-28 09:13:13,949 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:13,949 INFO L513 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 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, 1, 1, 1] [2021-10-28 09:13:13,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:14,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-10-28 09:13:14,176 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:14,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:14,177 INFO L85 PathProgramCache]: Analyzing trace with hash 846729722, now seen corresponding path program 1 times [2021-10-28 09:13:14,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:14,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974778017] [2021-10-28 09:13:14,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:14,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:14,225 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:14,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:14,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974778017] [2021-10-28 09:13:14,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974778017] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:14,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053195795] [2021-10-28 09:13:14,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:14,226 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:14,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:14,227 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:14,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-28 09:13:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:14,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:13:14,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:14,540 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:14,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053195795] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:14,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:14,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-28 09:13:14,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803555089] [2021-10-28 09:13:14,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:13:14,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:14,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:13:14,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:13:14,543 INFO L87 Difference]: Start difference. First operand 145 states and 165 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:14,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:14,604 INFO L93 Difference]: Finished difference Result 293 states and 332 transitions. [2021-10-28 09:13:14,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:13:14,605 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-10-28 09:13:14,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:14,606 INFO L225 Difference]: With dead ends: 293 [2021-10-28 09:13:14,606 INFO L226 Difference]: Without dead ends: 180 [2021-10-28 09:13:14,607 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:13:14,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-10-28 09:13:14,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 150. [2021-10-28 09:13:14,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 142 states have (on average 1.204225352112676) internal successors, (171), 149 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:14,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 171 transitions. [2021-10-28 09:13:14,626 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 171 transitions. Word has length 55 [2021-10-28 09:13:14,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:14,626 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 171 transitions. [2021-10-28 09:13:14,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:14,627 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 171 transitions. [2021-10-28 09:13:14,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-28 09:13:14,627 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:14,628 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:14,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:14,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-10-28 09:13:14,852 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:14,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:14,852 INFO L85 PathProgramCache]: Analyzing trace with hash -979368296, now seen corresponding path program 2 times [2021-10-28 09:13:14,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:14,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505755378] [2021-10-28 09:13:14,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:14,853 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:14,930 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:14,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:14,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505755378] [2021-10-28 09:13:14,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505755378] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:14,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590741207] [2021-10-28 09:13:14,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:13:14,932 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:14,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:14,933 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:14,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-28 09:13:15,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 09:13:15,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:15,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:13:15,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:15,507 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-28 09:13:15,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590741207] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:15,508 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:13:15,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 13 [2021-10-28 09:13:15,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132235021] [2021-10-28 09:13:15,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:13:15,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:15,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:13:15,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:13:15,509 INFO L87 Difference]: Start difference. First operand 150 states and 171 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:15,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:15,656 INFO L93 Difference]: Finished difference Result 189 states and 208 transitions. [2021-10-28 09:13:15,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:13:15,656 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-10-28 09:13:15,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:15,658 INFO L225 Difference]: With dead ends: 189 [2021-10-28 09:13:15,658 INFO L226 Difference]: Without dead ends: 188 [2021-10-28 09:13:15,658 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2021-10-28 09:13:15,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-10-28 09:13:15,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 147. [2021-10-28 09:13:15,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 139 states have (on average 1.2014388489208634) internal successors, (167), 146 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:15,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 167 transitions. [2021-10-28 09:13:15,669 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 167 transitions. Word has length 56 [2021-10-28 09:13:15,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:15,669 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 167 transitions. [2021-10-28 09:13:15,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:15,670 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 167 transitions. [2021-10-28 09:13:15,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-28 09:13:15,670 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:15,671 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:15,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:15,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-10-28 09:13:15,875 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:15,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:15,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1217155573, now seen corresponding path program 1 times [2021-10-28 09:13:15,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:15,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163733255] [2021-10-28 09:13:15,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:15,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:15,945 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:15,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:15,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163733255] [2021-10-28 09:13:15,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163733255] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:15,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63005125] [2021-10-28 09:13:15,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:15,946 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:15,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:15,947 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:15,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-28 09:13:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:16,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:13:16,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:16,436 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-28 09:13:16,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63005125] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:16,436 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:13:16,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 13 [2021-10-28 09:13:16,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338133721] [2021-10-28 09:13:16,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:13:16,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:16,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:13:16,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:13:16,438 INFO L87 Difference]: Start difference. First operand 147 states and 167 transitions. Second operand has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:16,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:16,663 INFO L93 Difference]: Finished difference Result 205 states and 226 transitions. [2021-10-28 09:13:16,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 09:13:16,663 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-10-28 09:13:16,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:16,665 INFO L225 Difference]: With dead ends: 205 [2021-10-28 09:13:16,665 INFO L226 Difference]: Without dead ends: 203 [2021-10-28 09:13:16,665 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2021-10-28 09:13:16,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-10-28 09:13:16,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 157. [2021-10-28 09:13:16,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 150 states have (on average 1.1866666666666668) internal successors, (178), 156 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:16,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 178 transitions. [2021-10-28 09:13:16,679 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 178 transitions. Word has length 57 [2021-10-28 09:13:16,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:16,679 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 178 transitions. [2021-10-28 09:13:16,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:16,680 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 178 transitions. [2021-10-28 09:13:16,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-28 09:13:16,681 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:16,681 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:16,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:16,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-10-28 09:13:16,899 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:16,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:16,900 INFO L85 PathProgramCache]: Analyzing trace with hash 922883270, now seen corresponding path program 1 times [2021-10-28 09:13:16,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:16,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606229858] [2021-10-28 09:13:16,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:16,900 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:16,994 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:16,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:16,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606229858] [2021-10-28 09:13:16,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606229858] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:16,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662930468] [2021-10-28 09:13:16,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:16,995 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:16,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:17,000 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:17,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-28 09:13:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:17,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 09:13:17,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:17,546 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-28 09:13:17,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662930468] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:17,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:13:17,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 13 [2021-10-28 09:13:17,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349244505] [2021-10-28 09:13:17,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:13:17,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:17,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:13:17,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:13:17,548 INFO L87 Difference]: Start difference. First operand 157 states and 178 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:17,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:17,756 INFO L93 Difference]: Finished difference Result 202 states and 220 transitions. [2021-10-28 09:13:17,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 09:13:17,757 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-10-28 09:13:17,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:17,758 INFO L225 Difference]: With dead ends: 202 [2021-10-28 09:13:17,758 INFO L226 Difference]: Without dead ends: 201 [2021-10-28 09:13:17,759 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2021-10-28 09:13:17,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-10-28 09:13:17,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 158. [2021-10-28 09:13:17,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 151 states have (on average 1.185430463576159) internal successors, (179), 157 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:17,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 179 transitions. [2021-10-28 09:13:17,770 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 179 transitions. Word has length 58 [2021-10-28 09:13:17,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:17,770 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 179 transitions. [2021-10-28 09:13:17,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:17,771 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 179 transitions. [2021-10-28 09:13:17,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-28 09:13:17,771 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:17,772 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:17,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:17,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:17,988 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:17,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:17,989 INFO L85 PathProgramCache]: Analyzing trace with hash 195632942, now seen corresponding path program 1 times [2021-10-28 09:13:17,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:17,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645025507] [2021-10-28 09:13:17,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:17,989 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:18,078 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:18,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:18,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645025507] [2021-10-28 09:13:18,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645025507] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:18,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082342569] [2021-10-28 09:13:18,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:18,080 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:18,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:18,081 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:18,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-28 09:13:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:18,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:13:18,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:18,634 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:18,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082342569] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:18,634 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:18,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-28 09:13:18,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326705362] [2021-10-28 09:13:18,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:13:18,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:18,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:13:18,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:13:18,636 INFO L87 Difference]: Start difference. First operand 158 states and 179 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:18,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:18,765 INFO L93 Difference]: Finished difference Result 284 states and 323 transitions. [2021-10-28 09:13:18,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:13:18,765 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-10-28 09:13:18,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:18,766 INFO L225 Difference]: With dead ends: 284 [2021-10-28 09:13:18,766 INFO L226 Difference]: Without dead ends: 160 [2021-10-28 09:13:18,767 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:13:18,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-10-28 09:13:18,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2021-10-28 09:13:18,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 151 states have (on average 1.1788079470198676) internal successors, (178), 157 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:18,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 178 transitions. [2021-10-28 09:13:18,777 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 178 transitions. Word has length 58 [2021-10-28 09:13:18,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:18,777 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 178 transitions. [2021-10-28 09:13:18,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:18,777 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 178 transitions. [2021-10-28 09:13:18,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-10-28 09:13:18,778 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:18,778 INFO L513 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:18,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:19,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-28 09:13:19,000 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:19,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:19,001 INFO L85 PathProgramCache]: Analyzing trace with hash -952804347, now seen corresponding path program 1 times [2021-10-28 09:13:19,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:19,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826944399] [2021-10-28 09:13:19,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:19,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:19,075 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:19,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:19,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826944399] [2021-10-28 09:13:19,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826944399] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:19,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037276696] [2021-10-28 09:13:19,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:19,076 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:19,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:19,077 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:19,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-28 09:13:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:19,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:13:19,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:19,480 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:19,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037276696] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:19,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:19,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-10-28 09:13:19,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808941275] [2021-10-28 09:13:19,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:13:19,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:19,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:13:19,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:13:19,483 INFO L87 Difference]: Start difference. First operand 158 states and 178 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:19,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:19,558 INFO L93 Difference]: Finished difference Result 311 states and 350 transitions. [2021-10-28 09:13:19,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:13:19,559 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-10-28 09:13:19,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:19,560 INFO L225 Difference]: With dead ends: 311 [2021-10-28 09:13:19,560 INFO L226 Difference]: Without dead ends: 190 [2021-10-28 09:13:19,561 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:13:19,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-10-28 09:13:19,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 163. [2021-10-28 09:13:19,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 156 states have (on average 1.1794871794871795) internal successors, (184), 162 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:19,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 184 transitions. [2021-10-28 09:13:19,571 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 184 transitions. Word has length 62 [2021-10-28 09:13:19,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:19,573 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 184 transitions. [2021-10-28 09:13:19,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:19,573 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 184 transitions. [2021-10-28 09:13:19,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-28 09:13:19,574 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:19,574 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:19,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:19,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-10-28 09:13:19,788 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:19,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:19,789 INFO L85 PathProgramCache]: Analyzing trace with hash 2018499545, now seen corresponding path program 2 times [2021-10-28 09:13:19,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:19,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732687531] [2021-10-28 09:13:19,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:19,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:19,895 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:19,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:19,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732687531] [2021-10-28 09:13:19,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732687531] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:19,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320513191] [2021-10-28 09:13:19,896 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:13:19,896 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:19,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:19,897 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:19,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-28 09:13:20,268 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:13:20,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:20,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 09:13:20,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:20,594 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:20,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320513191] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:20,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:20,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-10-28 09:13:20,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244960613] [2021-10-28 09:13:20,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:13:20,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:20,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:13:20,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:13:20,596 INFO L87 Difference]: Start difference. First operand 163 states and 184 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:20,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:20,711 INFO L93 Difference]: Finished difference Result 289 states and 328 transitions. [2021-10-28 09:13:20,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:13:20,711 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-10-28 09:13:20,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:20,713 INFO L225 Difference]: With dead ends: 289 [2021-10-28 09:13:20,713 INFO L226 Difference]: Without dead ends: 165 [2021-10-28 09:13:20,714 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:13:20,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-10-28 09:13:20,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 163. [2021-10-28 09:13:20,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 156 states have (on average 1.1730769230769231) internal successors, (183), 162 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:20,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 183 transitions. [2021-10-28 09:13:20,725 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 183 transitions. Word has length 63 [2021-10-28 09:13:20,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:20,725 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 183 transitions. [2021-10-28 09:13:20,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:20,725 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 183 transitions. [2021-10-28 09:13:20,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-28 09:13:20,726 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:20,726 INFO L513 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:20,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:20,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-10-28 09:13:20,931 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:20,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:20,932 INFO L85 PathProgramCache]: Analyzing trace with hash -746075344, now seen corresponding path program 2 times [2021-10-28 09:13:20,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:20,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049858237] [2021-10-28 09:13:20,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:20,932 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:21,014 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:21,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:21,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049858237] [2021-10-28 09:13:21,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049858237] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:21,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562054717] [2021-10-28 09:13:21,015 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:13:21,015 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:21,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:21,016 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:21,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-28 09:13:21,499 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:13:21,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:21,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 09:13:21,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:21,677 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:21,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562054717] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:21,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:21,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-10-28 09:13:21,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085105820] [2021-10-28 09:13:21,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:13:21,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:21,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:13:21,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:13:21,679 INFO L87 Difference]: Start difference. First operand 163 states and 183 transitions. Second operand has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:21,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:21,774 INFO L93 Difference]: Finished difference Result 316 states and 355 transitions. [2021-10-28 09:13:21,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:13:21,775 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-10-28 09:13:21,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:21,776 INFO L225 Difference]: With dead ends: 316 [2021-10-28 09:13:21,776 INFO L226 Difference]: Without dead ends: 195 [2021-10-28 09:13:21,777 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:13:21,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-10-28 09:13:21,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 168. [2021-10-28 09:13:21,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 161 states have (on average 1.173913043478261) internal successors, (189), 167 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:21,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 189 transitions. [2021-10-28 09:13:21,787 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 189 transitions. Word has length 67 [2021-10-28 09:13:21,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:21,787 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 189 transitions. [2021-10-28 09:13:21,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:21,788 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 189 transitions. [2021-10-28 09:13:21,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-28 09:13:21,789 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:21,789 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:21,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:21,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:21,995 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:21,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:21,995 INFO L85 PathProgramCache]: Analyzing trace with hash -162835954, now seen corresponding path program 3 times [2021-10-28 09:13:21,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:21,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364092669] [2021-10-28 09:13:21,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:21,996 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:22,105 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:22,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:22,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364092669] [2021-10-28 09:13:22,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364092669] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:22,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660410761] [2021-10-28 09:13:22,106 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 09:13:22,106 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:22,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:22,107 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:22,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-28 09:13:22,703 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-10-28 09:13:22,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:22,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 09:13:22,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:23,044 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:23,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660410761] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:23,045 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:23,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-10-28 09:13:23,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693932469] [2021-10-28 09:13:23,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:13:23,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:23,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:13:23,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:13:23,046 INFO L87 Difference]: Start difference. First operand 168 states and 189 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:23,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:23,224 INFO L93 Difference]: Finished difference Result 294 states and 333 transitions. [2021-10-28 09:13:23,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:13:23,225 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-10-28 09:13:23,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:23,229 INFO L225 Difference]: With dead ends: 294 [2021-10-28 09:13:23,229 INFO L226 Difference]: Without dead ends: 170 [2021-10-28 09:13:23,229 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 63 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:13:23,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-10-28 09:13:23,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 168. [2021-10-28 09:13:23,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 161 states have (on average 1.1677018633540373) internal successors, (188), 167 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:23,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 188 transitions. [2021-10-28 09:13:23,240 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 188 transitions. Word has length 68 [2021-10-28 09:13:23,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:23,240 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 188 transitions. [2021-10-28 09:13:23,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:23,240 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 188 transitions. [2021-10-28 09:13:23,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-10-28 09:13:23,241 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:23,241 INFO L513 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1] [2021-10-28 09:13:23,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:23,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:23,447 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:23,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:23,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1573068517, now seen corresponding path program 3 times [2021-10-28 09:13:23,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:23,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343477450] [2021-10-28 09:13:23,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:23,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:23,521 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:23,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:23,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343477450] [2021-10-28 09:13:23,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343477450] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:23,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986216797] [2021-10-28 09:13:23,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 09:13:23,522 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:23,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:23,523 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:23,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-28 09:13:24,763 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-10-28 09:13:24,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:24,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 09:13:24,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:24,956 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:24,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986216797] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:24,956 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:24,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-10-28 09:13:24,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582662456] [2021-10-28 09:13:24,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:13:24,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:24,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:13:24,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:13:24,958 INFO L87 Difference]: Start difference. First operand 168 states and 188 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:25,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:25,032 INFO L93 Difference]: Finished difference Result 321 states and 360 transitions. [2021-10-28 09:13:25,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:13:25,034 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-10-28 09:13:25,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:25,035 INFO L225 Difference]: With dead ends: 321 [2021-10-28 09:13:25,036 INFO L226 Difference]: Without dead ends: 200 [2021-10-28 09:13:25,036 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:13:25,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-10-28 09:13:25,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 173. [2021-10-28 09:13:25,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 166 states have (on average 1.1686746987951808) internal successors, (194), 172 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:25,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 194 transitions. [2021-10-28 09:13:25,046 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 194 transitions. Word has length 72 [2021-10-28 09:13:25,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:25,047 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 194 transitions. [2021-10-28 09:13:25,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:25,047 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 194 transitions. [2021-10-28 09:13:25,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-28 09:13:25,048 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:25,048 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:25,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:25,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:25,254 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:25,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:25,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1283820295, now seen corresponding path program 4 times [2021-10-28 09:13:25,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:25,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074969106] [2021-10-28 09:13:25,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:25,255 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:25,365 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:25,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:25,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074969106] [2021-10-28 09:13:25,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074969106] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:25,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931503716] [2021-10-28 09:13:25,367 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 09:13:25,367 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:25,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:25,368 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:25,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-28 09:13:25,805 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 09:13:25,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:25,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-28 09:13:25,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:26,204 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:26,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931503716] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:26,205 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:26,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-10-28 09:13:26,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231394688] [2021-10-28 09:13:26,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:13:26,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:26,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:13:26,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:13:26,206 INFO L87 Difference]: Start difference. First operand 173 states and 194 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:26,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:26,367 INFO L93 Difference]: Finished difference Result 299 states and 338 transitions. [2021-10-28 09:13:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:13:26,368 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-10-28 09:13:26,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:26,369 INFO L225 Difference]: With dead ends: 299 [2021-10-28 09:13:26,370 INFO L226 Difference]: Without dead ends: 175 [2021-10-28 09:13:26,370 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 67 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:13:26,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-10-28 09:13:26,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 173. [2021-10-28 09:13:26,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 166 states have (on average 1.1626506024096386) internal successors, (193), 172 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:26,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 193 transitions. [2021-10-28 09:13:26,383 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 193 transitions. Word has length 73 [2021-10-28 09:13:26,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:26,383 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 193 transitions. [2021-10-28 09:13:26,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:26,383 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 193 transitions. [2021-10-28 09:13:26,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-10-28 09:13:26,384 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:26,385 INFO L513 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 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, 1, 1, 1, 1, 1] [2021-10-28 09:13:26,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:26,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:26,608 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:26,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:26,608 INFO L85 PathProgramCache]: Analyzing trace with hash -679422896, now seen corresponding path program 4 times [2021-10-28 09:13:26,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:26,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145097176] [2021-10-28 09:13:26,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:26,609 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:26,690 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:26,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:26,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145097176] [2021-10-28 09:13:26,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145097176] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:26,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826441464] [2021-10-28 09:13:26,691 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 09:13:26,691 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:26,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:26,692 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:26,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-28 09:13:27,107 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 09:13:27,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:27,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:13:27,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:27,310 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:27,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826441464] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:27,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:27,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-10-28 09:13:27,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982543261] [2021-10-28 09:13:27,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:13:27,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:27,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:13:27,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:13:27,312 INFO L87 Difference]: Start difference. First operand 173 states and 193 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:27,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:27,430 INFO L93 Difference]: Finished difference Result 326 states and 365 transitions. [2021-10-28 09:13:27,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:13:27,431 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-10-28 09:13:27,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:27,432 INFO L225 Difference]: With dead ends: 326 [2021-10-28 09:13:27,432 INFO L226 Difference]: Without dead ends: 205 [2021-10-28 09:13:27,433 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:13:27,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-10-28 09:13:27,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 178. [2021-10-28 09:13:27,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 171 states have (on average 1.1637426900584795) internal successors, (199), 177 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:27,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 199 transitions. [2021-10-28 09:13:27,442 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 199 transitions. Word has length 77 [2021-10-28 09:13:27,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:27,442 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 199 transitions. [2021-10-28 09:13:27,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:27,442 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 199 transitions. [2021-10-28 09:13:27,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-10-28 09:13:27,443 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:27,443 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:27,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:27,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-10-28 09:13:27,656 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:27,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:27,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1903389934, now seen corresponding path program 5 times [2021-10-28 09:13:27,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:27,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859128047] [2021-10-28 09:13:27,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:27,657 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:27,771 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:27,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:27,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859128047] [2021-10-28 09:13:27,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859128047] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:27,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380625680] [2021-10-28 09:13:27,773 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 09:13:27,773 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:27,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:27,774 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:27,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-28 09:13:28,233 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-10-28 09:13:28,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:28,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 09:13:28,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:28,668 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:28,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380625680] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:28,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:28,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-10-28 09:13:28,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722469855] [2021-10-28 09:13:28,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:13:28,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:28,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:13:28,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:13:28,671 INFO L87 Difference]: Start difference. First operand 178 states and 199 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:28,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:28,798 INFO L93 Difference]: Finished difference Result 304 states and 343 transitions. [2021-10-28 09:13:28,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:13:28,799 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-10-28 09:13:28,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:28,800 INFO L225 Difference]: With dead ends: 304 [2021-10-28 09:13:28,800 INFO L226 Difference]: Without dead ends: 180 [2021-10-28 09:13:28,801 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 71 SyntacticMatches, 7 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:13:28,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-10-28 09:13:28,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 178. [2021-10-28 09:13:28,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 171 states have (on average 1.1578947368421053) internal successors, (198), 177 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:28,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 198 transitions. [2021-10-28 09:13:28,811 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 198 transitions. Word has length 78 [2021-10-28 09:13:28,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:28,811 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 198 transitions. [2021-10-28 09:13:28,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:28,812 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 198 transitions. [2021-10-28 09:13:28,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-10-28 09:13:28,812 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:28,813 INFO L513 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1] [2021-10-28 09:13:28,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:29,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:29,036 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:29,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:29,036 INFO L85 PathProgramCache]: Analyzing trace with hash 2141374917, now seen corresponding path program 5 times [2021-10-28 09:13:29,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:29,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029241049] [2021-10-28 09:13:29,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:29,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:29,137 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:29,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:29,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029241049] [2021-10-28 09:13:29,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029241049] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:29,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986916349] [2021-10-28 09:13:29,138 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 09:13:29,138 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:29,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:29,140 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:29,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-28 09:13:29,599 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2021-10-28 09:13:29,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:29,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 09:13:29,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:29,808 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:29,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986916349] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:29,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:29,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-10-28 09:13:29,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124011706] [2021-10-28 09:13:29,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 09:13:29,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:29,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 09:13:29,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:13:29,811 INFO L87 Difference]: Start difference. First operand 178 states and 198 transitions. Second operand has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:29,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:29,893 INFO L93 Difference]: Finished difference Result 331 states and 370 transitions. [2021-10-28 09:13:29,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:13:29,893 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-10-28 09:13:29,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:29,895 INFO L225 Difference]: With dead ends: 331 [2021-10-28 09:13:29,895 INFO L226 Difference]: Without dead ends: 210 [2021-10-28 09:13:29,896 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:13:29,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-10-28 09:13:29,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 183. [2021-10-28 09:13:29,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 176 states have (on average 1.1590909090909092) internal successors, (204), 182 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:29,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 204 transitions. [2021-10-28 09:13:29,922 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 204 transitions. Word has length 82 [2021-10-28 09:13:29,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:29,922 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 204 transitions. [2021-10-28 09:13:29,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:29,923 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 204 transitions. [2021-10-28 09:13:29,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-10-28 09:13:29,924 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:29,924 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:29,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:30,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-10-28 09:13:30,125 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:30,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:30,125 INFO L85 PathProgramCache]: Analyzing trace with hash -846191079, now seen corresponding path program 6 times [2021-10-28 09:13:30,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:30,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618712317] [2021-10-28 09:13:30,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:30,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:30,298 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:30,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:30,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618712317] [2021-10-28 09:13:30,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618712317] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:30,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903014815] [2021-10-28 09:13:30,299 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 09:13:30,299 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:30,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:30,304 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:30,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-28 09:13:32,227 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-10-28 09:13:32,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:32,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 09:13:32,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:32,698 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:32,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903014815] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:32,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:32,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-10-28 09:13:32,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663978256] [2021-10-28 09:13:32,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 09:13:32,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:32,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 09:13:32,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:13:32,701 INFO L87 Difference]: Start difference. First operand 183 states and 204 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:32,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:32,945 INFO L93 Difference]: Finished difference Result 309 states and 348 transitions. [2021-10-28 09:13:32,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:13:32,946 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-10-28 09:13:32,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:32,947 INFO L225 Difference]: With dead ends: 309 [2021-10-28 09:13:32,947 INFO L226 Difference]: Without dead ends: 185 [2021-10-28 09:13:32,947 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 75 SyntacticMatches, 8 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:13:32,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-10-28 09:13:32,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 183. [2021-10-28 09:13:32,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 176 states have (on average 1.1534090909090908) internal successors, (203), 182 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:32,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 203 transitions. [2021-10-28 09:13:32,958 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 203 transitions. Word has length 83 [2021-10-28 09:13:32,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:32,958 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 203 transitions. [2021-10-28 09:13:32,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:32,958 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 203 transitions. [2021-10-28 09:13:32,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-10-28 09:13:32,959 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:32,959 INFO L513 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1] [2021-10-28 09:13:32,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:33,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-10-28 09:13:33,166 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:33,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:33,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1625754256, now seen corresponding path program 6 times [2021-10-28 09:13:33,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:33,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606825398] [2021-10-28 09:13:33,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:33,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:33,277 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:33,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:33,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606825398] [2021-10-28 09:13:33,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606825398] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:33,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841173590] [2021-10-28 09:13:33,278 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 09:13:33,279 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:33,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:33,280 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:33,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-28 09:13:34,196 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-10-28 09:13:34,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:34,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:13:34,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:34,424 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:34,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841173590] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:34,425 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:34,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-10-28 09:13:34,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905686550] [2021-10-28 09:13:34,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 09:13:34,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:34,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 09:13:34,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:13:34,427 INFO L87 Difference]: Start difference. First operand 183 states and 203 transitions. Second operand has 14 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:34,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:34,550 INFO L93 Difference]: Finished difference Result 336 states and 375 transitions. [2021-10-28 09:13:34,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 09:13:34,551 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-10-28 09:13:34,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:34,555 INFO L225 Difference]: With dead ends: 336 [2021-10-28 09:13:34,555 INFO L226 Difference]: Without dead ends: 215 [2021-10-28 09:13:34,555 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:13:34,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-10-28 09:13:34,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 188. [2021-10-28 09:13:34,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 181 states have (on average 1.1546961325966851) internal successors, (209), 187 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:34,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 209 transitions. [2021-10-28 09:13:34,565 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 209 transitions. Word has length 87 [2021-10-28 09:13:34,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:34,566 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 209 transitions. [2021-10-28 09:13:34,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:34,566 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 209 transitions. [2021-10-28 09:13:34,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-10-28 09:13:34,567 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:34,567 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:34,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:34,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-10-28 09:13:34,773 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:34,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:34,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1663078450, now seen corresponding path program 7 times [2021-10-28 09:13:34,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:34,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014008565] [2021-10-28 09:13:34,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:34,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:34,964 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:34,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:34,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014008565] [2021-10-28 09:13:34,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014008565] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:34,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978520422] [2021-10-28 09:13:34,965 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 09:13:34,965 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:34,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:34,966 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:34,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-28 09:13:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:35,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 09:13:35,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:36,220 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:36,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978520422] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:36,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:36,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-10-28 09:13:36,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911512904] [2021-10-28 09:13:36,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 09:13:36,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:36,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 09:13:36,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:13:36,222 INFO L87 Difference]: Start difference. First operand 188 states and 209 transitions. Second operand has 14 states, 14 states have (on average 6.428571428571429) internal successors, (90), 14 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:36,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:36,423 INFO L93 Difference]: Finished difference Result 314 states and 353 transitions. [2021-10-28 09:13:36,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 09:13:36,424 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.428571428571429) internal successors, (90), 14 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-10-28 09:13:36,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:36,425 INFO L225 Difference]: With dead ends: 314 [2021-10-28 09:13:36,425 INFO L226 Difference]: Without dead ends: 190 [2021-10-28 09:13:36,426 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 79 SyntacticMatches, 9 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:13:36,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-10-28 09:13:36,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 188. [2021-10-28 09:13:36,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 181 states have (on average 1.149171270718232) internal successors, (208), 187 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:36,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 208 transitions. [2021-10-28 09:13:36,441 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 208 transitions. Word has length 88 [2021-10-28 09:13:36,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:36,441 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 208 transitions. [2021-10-28 09:13:36,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.428571428571429) internal successors, (90), 14 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:36,442 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 208 transitions. [2021-10-28 09:13:36,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-10-28 09:13:36,443 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:36,443 INFO L513 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 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, 1, 1, 1, 1, 1] [2021-10-28 09:13:36,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-10-28 09:13:36,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-10-28 09:13:36,660 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:36,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:36,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1033002149, now seen corresponding path program 7 times [2021-10-28 09:13:36,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:36,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90875484] [2021-10-28 09:13:36,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:36,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:36,793 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:36,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:36,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90875484] [2021-10-28 09:13:36,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90875484] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:36,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416805882] [2021-10-28 09:13:36,794 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 09:13:36,795 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:36,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:36,796 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:36,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-28 09:13:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:37,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 09:13:37,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:37,602 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:37,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416805882] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:37,603 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:37,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2021-10-28 09:13:37,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325456210] [2021-10-28 09:13:37,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 09:13:37,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:37,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 09:13:37,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:13:37,605 INFO L87 Difference]: Start difference. First operand 188 states and 208 transitions. Second operand has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:37,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:37,717 INFO L93 Difference]: Finished difference Result 341 states and 380 transitions. [2021-10-28 09:13:37,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 09:13:37,718 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-10-28 09:13:37,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:37,719 INFO L225 Difference]: With dead ends: 341 [2021-10-28 09:13:37,719 INFO L226 Difference]: Without dead ends: 220 [2021-10-28 09:13:37,720 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:13:37,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-10-28 09:13:37,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 193. [2021-10-28 09:13:37,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 186 states have (on average 1.1505376344086022) internal successors, (214), 192 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:37,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 214 transitions. [2021-10-28 09:13:37,733 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 214 transitions. Word has length 92 [2021-10-28 09:13:37,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:37,733 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 214 transitions. [2021-10-28 09:13:37,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:37,733 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 214 transitions. [2021-10-28 09:13:37,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-10-28 09:13:37,734 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:37,734 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:37,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2021-10-28 09:13:37,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:37,934 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:37,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:37,935 INFO L85 PathProgramCache]: Analyzing trace with hash -846008519, now seen corresponding path program 8 times [2021-10-28 09:13:37,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:37,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106483815] [2021-10-28 09:13:37,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:37,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:38,149 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:38,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:38,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106483815] [2021-10-28 09:13:38,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106483815] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:38,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165221887] [2021-10-28 09:13:38,150 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:13:38,150 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:38,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:38,151 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:38,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-28 09:13:38,853 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:13:38,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:38,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-28 09:13:38,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:39,458 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:39,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165221887] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:39,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:39,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2021-10-28 09:13:39,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054216304] [2021-10-28 09:13:39,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 09:13:39,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:39,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 09:13:39,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:13:39,460 INFO L87 Difference]: Start difference. First operand 193 states and 214 transitions. Second operand has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 15 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:39,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:39,699 INFO L93 Difference]: Finished difference Result 319 states and 358 transitions. [2021-10-28 09:13:39,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 09:13:39,700 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 15 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-10-28 09:13:39,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:39,701 INFO L225 Difference]: With dead ends: 319 [2021-10-28 09:13:39,702 INFO L226 Difference]: Without dead ends: 195 [2021-10-28 09:13:39,702 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 83 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:13:39,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-10-28 09:13:39,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 193. [2021-10-28 09:13:39,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 186 states have (on average 1.1451612903225807) internal successors, (213), 192 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:39,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 213 transitions. [2021-10-28 09:13:39,724 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 213 transitions. Word has length 93 [2021-10-28 09:13:39,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:39,724 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 213 transitions. [2021-10-28 09:13:39,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 15 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:39,724 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 213 transitions. [2021-10-28 09:13:39,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-10-28 09:13:39,725 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:39,725 INFO L513 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 12, 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, 1, 1, 1, 1, 1] [2021-10-28 09:13:39,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:39,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:39,932 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:39,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:39,932 INFO L85 PathProgramCache]: Analyzing trace with hash -531485040, now seen corresponding path program 8 times [2021-10-28 09:13:39,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:39,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139328220] [2021-10-28 09:13:39,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:39,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:40,081 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:40,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:40,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139328220] [2021-10-28 09:13:40,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139328220] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:40,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194354540] [2021-10-28 09:13:40,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:13:40,082 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:40,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:40,088 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:40,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-28 09:13:40,769 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:13:40,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:40,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 09:13:40,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:41,015 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:41,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194354540] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:41,015 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:41,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2021-10-28 09:13:41,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510162556] [2021-10-28 09:13:41,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 09:13:41,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:41,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 09:13:41,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-10-28 09:13:41,016 INFO L87 Difference]: Start difference. First operand 193 states and 213 transitions. Second operand has 16 states, 16 states have (on average 6.5) internal successors, (104), 16 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:41,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:41,113 INFO L93 Difference]: Finished difference Result 346 states and 385 transitions. [2021-10-28 09:13:41,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 09:13:41,120 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.5) internal successors, (104), 16 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-10-28 09:13:41,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:41,122 INFO L225 Difference]: With dead ends: 346 [2021-10-28 09:13:41,122 INFO L226 Difference]: Without dead ends: 225 [2021-10-28 09:13:41,123 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-10-28 09:13:41,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-10-28 09:13:41,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 198. [2021-10-28 09:13:41,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 191 states have (on average 1.1465968586387434) internal successors, (219), 197 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:41,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 219 transitions. [2021-10-28 09:13:41,134 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 219 transitions. Word has length 97 [2021-10-28 09:13:41,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:41,134 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 219 transitions. [2021-10-28 09:13:41,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.5) internal successors, (104), 16 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:41,135 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 219 transitions. [2021-10-28 09:13:41,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-10-28 09:13:41,135 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:41,136 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:41,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:41,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:41,342 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:41,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:41,342 INFO L85 PathProgramCache]: Analyzing trace with hash -2100471122, now seen corresponding path program 9 times [2021-10-28 09:13:41,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:41,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089946169] [2021-10-28 09:13:41,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:41,343 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:41,553 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:41,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:41,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089946169] [2021-10-28 09:13:41,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089946169] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:41,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858587806] [2021-10-28 09:13:41,554 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 09:13:41,554 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:41,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:41,556 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:41,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-28 09:13:42,925 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2021-10-28 09:13:42,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:42,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-28 09:13:42,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:43,547 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:43,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858587806] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:43,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:43,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2021-10-28 09:13:43,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428332688] [2021-10-28 09:13:43,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 09:13:43,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:43,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 09:13:43,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-10-28 09:13:43,549 INFO L87 Difference]: Start difference. First operand 198 states and 219 transitions. Second operand has 16 states, 16 states have (on average 6.25) internal successors, (100), 16 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:43,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:43,849 INFO L93 Difference]: Finished difference Result 324 states and 363 transitions. [2021-10-28 09:13:43,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 09:13:43,849 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.25) internal successors, (100), 16 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-10-28 09:13:43,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:43,851 INFO L225 Difference]: With dead ends: 324 [2021-10-28 09:13:43,851 INFO L226 Difference]: Without dead ends: 200 [2021-10-28 09:13:43,852 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 87 SyntacticMatches, 11 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-10-28 09:13:43,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-10-28 09:13:43,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 198. [2021-10-28 09:13:43,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 191 states have (on average 1.1413612565445026) internal successors, (218), 197 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:43,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 218 transitions. [2021-10-28 09:13:43,865 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 218 transitions. Word has length 98 [2021-10-28 09:13:43,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:43,867 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 218 transitions. [2021-10-28 09:13:43,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.25) internal successors, (100), 16 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:43,867 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 218 transitions. [2021-10-28 09:13:43,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-10-28 09:13:43,868 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:43,868 INFO L513 BasicCegarLoop]: trace histogram [14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:43,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:44,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:44,076 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:44,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:44,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1389352837, now seen corresponding path program 9 times [2021-10-28 09:13:44,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:44,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439732147] [2021-10-28 09:13:44,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:44,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:44,224 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:44,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:44,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439732147] [2021-10-28 09:13:44,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439732147] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:44,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344140157] [2021-10-28 09:13:44,225 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 09:13:44,225 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:44,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:44,228 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:44,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-10-28 09:13:45,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2021-10-28 09:13:45,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:45,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 09:13:45,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:45,418 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:45,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344140157] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:45,418 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:45,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-10-28 09:13:45,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049002343] [2021-10-28 09:13:45,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 09:13:45,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:45,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 09:13:45,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:13:45,420 INFO L87 Difference]: Start difference. First operand 198 states and 218 transitions. Second operand has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 17 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:45,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:45,499 INFO L93 Difference]: Finished difference Result 351 states and 390 transitions. [2021-10-28 09:13:45,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 09:13:45,504 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 17 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-10-28 09:13:45,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:45,506 INFO L225 Difference]: With dead ends: 351 [2021-10-28 09:13:45,506 INFO L226 Difference]: Without dead ends: 230 [2021-10-28 09:13:45,507 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:13:45,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-10-28 09:13:45,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 203. [2021-10-28 09:13:45,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 196 states have (on average 1.1428571428571428) internal successors, (224), 202 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:45,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 224 transitions. [2021-10-28 09:13:45,521 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 224 transitions. Word has length 102 [2021-10-28 09:13:45,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:45,521 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 224 transitions. [2021-10-28 09:13:45,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 17 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:45,522 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 224 transitions. [2021-10-28 09:13:45,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-10-28 09:13:45,523 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:45,523 INFO L513 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:45,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:45,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-10-28 09:13:45,730 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:45,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:45,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1610928217, now seen corresponding path program 10 times [2021-10-28 09:13:45,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:45,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93773351] [2021-10-28 09:13:45,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:45,731 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:45,954 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:45,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:45,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93773351] [2021-10-28 09:13:45,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93773351] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:45,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526254620] [2021-10-28 09:13:45,955 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 09:13:45,955 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:45,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:45,955 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:45,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-10-28 09:13:46,688 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 09:13:46,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:46,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-28 09:13:46,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:47,337 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:47,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526254620] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:47,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:47,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-10-28 09:13:47,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619377193] [2021-10-28 09:13:47,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 09:13:47,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:47,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 09:13:47,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:13:47,338 INFO L87 Difference]: Start difference. First operand 203 states and 224 transitions. Second operand has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:47,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:47,698 INFO L93 Difference]: Finished difference Result 329 states and 368 transitions. [2021-10-28 09:13:47,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 09:13:47,702 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-10-28 09:13:47,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:47,703 INFO L225 Difference]: With dead ends: 329 [2021-10-28 09:13:47,704 INFO L226 Difference]: Without dead ends: 205 [2021-10-28 09:13:47,704 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 91 SyntacticMatches, 12 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:13:47,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-10-28 09:13:47,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 203. [2021-10-28 09:13:47,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 196 states have (on average 1.1377551020408163) internal successors, (223), 202 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:47,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 223 transitions. [2021-10-28 09:13:47,714 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 223 transitions. Word has length 103 [2021-10-28 09:13:47,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:47,715 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 223 transitions. [2021-10-28 09:13:47,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:47,715 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 223 transitions. [2021-10-28 09:13:47,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-10-28 09:13:47,716 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:47,716 INFO L513 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:47,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:47,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-10-28 09:13:47,940 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:47,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:47,940 INFO L85 PathProgramCache]: Analyzing trace with hash 917405616, now seen corresponding path program 10 times [2021-10-28 09:13:47,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:47,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581679166] [2021-10-28 09:13:47,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:47,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:48,108 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:48,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:48,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581679166] [2021-10-28 09:13:48,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581679166] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:48,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274011079] [2021-10-28 09:13:48,109 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 09:13:48,109 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:48,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:48,116 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:48,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-28 09:13:49,080 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 09:13:49,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:49,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 09:13:49,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:49,318 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:49,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274011079] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:49,318 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:49,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2021-10-28 09:13:49,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556820750] [2021-10-28 09:13:49,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 09:13:49,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:49,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 09:13:49,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-10-28 09:13:49,320 INFO L87 Difference]: Start difference. First operand 203 states and 223 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:49,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:49,423 INFO L93 Difference]: Finished difference Result 356 states and 395 transitions. [2021-10-28 09:13:49,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 09:13:49,424 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-10-28 09:13:49,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:49,425 INFO L225 Difference]: With dead ends: 356 [2021-10-28 09:13:49,425 INFO L226 Difference]: Without dead ends: 235 [2021-10-28 09:13:49,426 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-10-28 09:13:49,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-10-28 09:13:49,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 208. [2021-10-28 09:13:49,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 201 states have (on average 1.1393034825870647) internal successors, (229), 207 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:49,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 229 transitions. [2021-10-28 09:13:49,437 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 229 transitions. Word has length 107 [2021-10-28 09:13:49,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:49,437 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 229 transitions. [2021-10-28 09:13:49,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:49,438 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 229 transitions. [2021-10-28 09:13:49,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-10-28 09:13:49,438 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:49,439 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:49,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:49,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-10-28 09:13:49,664 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:49,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:49,664 INFO L85 PathProgramCache]: Analyzing trace with hash -134533746, now seen corresponding path program 11 times [2021-10-28 09:13:49,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:49,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669012625] [2021-10-28 09:13:49,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:49,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:49,869 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:49,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:49,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669012625] [2021-10-28 09:13:49,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669012625] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:49,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929526845] [2021-10-28 09:13:49,869 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 09:13:49,869 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:49,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:49,870 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:49,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-10-28 09:13:50,817 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2021-10-28 09:13:50,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:50,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-28 09:13:50,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:51,466 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:51,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929526845] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:51,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:51,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2021-10-28 09:13:51,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790443848] [2021-10-28 09:13:51,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 09:13:51,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:51,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 09:13:51,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-10-28 09:13:51,469 INFO L87 Difference]: Start difference. First operand 208 states and 229 transitions. Second operand has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:51,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:51,745 INFO L93 Difference]: Finished difference Result 334 states and 373 transitions. [2021-10-28 09:13:51,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 09:13:51,746 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-10-28 09:13:51,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:51,747 INFO L225 Difference]: With dead ends: 334 [2021-10-28 09:13:51,747 INFO L226 Difference]: Without dead ends: 210 [2021-10-28 09:13:51,747 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 95 SyntacticMatches, 13 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-10-28 09:13:51,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-10-28 09:13:51,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 208. [2021-10-28 09:13:51,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 201 states have (on average 1.1343283582089552) internal successors, (228), 207 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:51,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 228 transitions. [2021-10-28 09:13:51,762 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 228 transitions. Word has length 108 [2021-10-28 09:13:51,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:51,762 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 228 transitions. [2021-10-28 09:13:51,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:51,763 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 228 transitions. [2021-10-28 09:13:51,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-10-28 09:13:51,764 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:51,764 INFO L513 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 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, 1, 1, 1, 1, 1] [2021-10-28 09:13:51,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:51,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-10-28 09:13:51,980 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:51,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:51,980 INFO L85 PathProgramCache]: Analyzing trace with hash 85539429, now seen corresponding path program 11 times [2021-10-28 09:13:51,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:51,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460859876] [2021-10-28 09:13:51,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:51,981 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:52,159 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:52,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:52,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460859876] [2021-10-28 09:13:52,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460859876] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:52,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684536075] [2021-10-28 09:13:52,160 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 09:13:52,161 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:52,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:52,164 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:52,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-10-28 09:13:53,119 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2021-10-28 09:13:53,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:53,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 09:13:53,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:53,424 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:53,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684536075] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:53,425 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:53,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 19 [2021-10-28 09:13:53,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554479354] [2021-10-28 09:13:53,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 09:13:53,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:53,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 09:13:53,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:13:53,432 INFO L87 Difference]: Start difference. First operand 208 states and 228 transitions. Second operand has 19 states, 19 states have (on average 6.2631578947368425) internal successors, (119), 19 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:53,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:53,579 INFO L93 Difference]: Finished difference Result 361 states and 400 transitions. [2021-10-28 09:13:53,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 09:13:53,579 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.2631578947368425) internal successors, (119), 19 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-10-28 09:13:53,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:53,581 INFO L225 Difference]: With dead ends: 361 [2021-10-28 09:13:53,581 INFO L226 Difference]: Without dead ends: 240 [2021-10-28 09:13:53,585 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:13:53,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-10-28 09:13:53,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 213. [2021-10-28 09:13:53,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 206 states have (on average 1.1359223300970873) internal successors, (234), 212 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:53,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 234 transitions. [2021-10-28 09:13:53,596 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 234 transitions. Word has length 112 [2021-10-28 09:13:53,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:53,597 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 234 transitions. [2021-10-28 09:13:53,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.2631578947368425) internal successors, (119), 19 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:53,597 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 234 transitions. [2021-10-28 09:13:53,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-10-28 09:13:53,598 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:53,598 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:53,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:53,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:53,812 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:53,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:53,812 INFO L85 PathProgramCache]: Analyzing trace with hash -152581767, now seen corresponding path program 12 times [2021-10-28 09:13:53,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:53,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258342681] [2021-10-28 09:13:53,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:53,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:54,060 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:54,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:54,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258342681] [2021-10-28 09:13:54,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258342681] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:54,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686276264] [2021-10-28 09:13:54,061 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 09:13:54,061 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:54,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:54,062 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:54,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-10-28 09:13:55,730 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2021-10-28 09:13:55,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:55,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-28 09:13:55,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:56,485 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:56,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686276264] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:56,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:56,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 19 [2021-10-28 09:13:56,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588710837] [2021-10-28 09:13:56,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 09:13:56,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:56,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 09:13:56,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:13:56,486 INFO L87 Difference]: Start difference. First operand 213 states and 234 transitions. Second operand has 19 states, 19 states have (on average 6.052631578947368) internal successors, (115), 19 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:56,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:56,752 INFO L93 Difference]: Finished difference Result 339 states and 378 transitions. [2021-10-28 09:13:56,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 09:13:56,753 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.052631578947368) internal successors, (115), 19 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-10-28 09:13:56,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:56,754 INFO L225 Difference]: With dead ends: 339 [2021-10-28 09:13:56,755 INFO L226 Difference]: Without dead ends: 215 [2021-10-28 09:13:56,755 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 99 SyntacticMatches, 14 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:13:56,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-10-28 09:13:56,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 213. [2021-10-28 09:13:56,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 206 states have (on average 1.1310679611650485) internal successors, (233), 212 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:56,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 233 transitions. [2021-10-28 09:13:56,767 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 233 transitions. Word has length 113 [2021-10-28 09:13:56,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:56,768 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 233 transitions. [2021-10-28 09:13:56,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.052631578947368) internal successors, (115), 19 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:56,768 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 233 transitions. [2021-10-28 09:13:56,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-10-28 09:13:56,769 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:56,769 INFO L513 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 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, 1, 1, 1, 1, 1] [2021-10-28 09:13:56,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:56,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:56,977 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:56,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:56,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1127213264, now seen corresponding path program 12 times [2021-10-28 09:13:56,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:56,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194989515] [2021-10-28 09:13:56,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:56,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:57,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:57,168 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:57,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:57,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194989515] [2021-10-28 09:13:57,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194989515] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:57,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932181324] [2021-10-28 09:13:57,169 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 09:13:57,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:57,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:57,184 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:57,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-10-28 09:13:58,896 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2021-10-28 09:13:58,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:58,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-28 09:13:58,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:59,174 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:59,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932181324] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:59,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:59,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 20 [2021-10-28 09:13:59,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573025820] [2021-10-28 09:13:59,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 09:13:59,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:59,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 09:13:59,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:13:59,176 INFO L87 Difference]: Start difference. First operand 213 states and 233 transitions. Second operand has 20 states, 20 states have (on average 6.2) internal successors, (124), 20 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:59,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:59,287 INFO L93 Difference]: Finished difference Result 366 states and 405 transitions. [2021-10-28 09:13:59,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 09:13:59,289 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.2) internal successors, (124), 20 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-10-28 09:13:59,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:13:59,290 INFO L225 Difference]: With dead ends: 366 [2021-10-28 09:13:59,290 INFO L226 Difference]: Without dead ends: 245 [2021-10-28 09:13:59,291 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:13:59,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-10-28 09:13:59,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 218. [2021-10-28 09:13:59,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 211 states have (on average 1.132701421800948) internal successors, (239), 217 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:59,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 239 transitions. [2021-10-28 09:13:59,305 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 239 transitions. Word has length 117 [2021-10-28 09:13:59,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:13:59,305 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 239 transitions. [2021-10-28 09:13:59,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.2) internal successors, (124), 20 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:59,306 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 239 transitions. [2021-10-28 09:13:59,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-10-28 09:13:59,307 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:13:59,307 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:59,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2021-10-28 09:13:59,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-10-28 09:13:59,516 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:13:59,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:59,516 INFO L85 PathProgramCache]: Analyzing trace with hash 2074536046, now seen corresponding path program 13 times [2021-10-28 09:13:59,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:59,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406832330] [2021-10-28 09:13:59,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:59,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:59,819 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:13:59,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:59,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406832330] [2021-10-28 09:13:59,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406832330] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:59,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357154014] [2021-10-28 09:13:59,820 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 09:13:59,820 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:59,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,821 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-10-28 09:14:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:01,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-28 09:14:01,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:02,116 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:02,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357154014] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:02,116 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:14:02,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 20 [2021-10-28 09:14:02,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490120498] [2021-10-28 09:14:02,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 09:14:02,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:02,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 09:14:02,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:14:02,118 INFO L87 Difference]: Start difference. First operand 218 states and 239 transitions. Second operand has 20 states, 20 states have (on average 6.0) internal successors, (120), 20 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:02,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:14:02,643 INFO L93 Difference]: Finished difference Result 344 states and 383 transitions. [2021-10-28 09:14:02,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 09:14:02,645 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.0) internal successors, (120), 20 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-10-28 09:14:02,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:14:02,646 INFO L225 Difference]: With dead ends: 344 [2021-10-28 09:14:02,646 INFO L226 Difference]: Without dead ends: 220 [2021-10-28 09:14:02,647 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 103 SyntacticMatches, 15 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:14:02,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-10-28 09:14:02,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 218. [2021-10-28 09:14:02,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 211 states have (on average 1.127962085308057) internal successors, (238), 217 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:02,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 238 transitions. [2021-10-28 09:14:02,659 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 238 transitions. Word has length 118 [2021-10-28 09:14:02,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:14:02,661 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 238 transitions. [2021-10-28 09:14:02,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.0) internal successors, (120), 20 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:02,661 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 238 transitions. [2021-10-28 09:14:02,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-10-28 09:14:02,662 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:14:02,662 INFO L513 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 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, 1, 1, 1, 1, 1] [2021-10-28 09:14:02,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-10-28 09:14:02,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:02,885 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:14:02,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:02,885 INFO L85 PathProgramCache]: Analyzing trace with hash 78415173, now seen corresponding path program 13 times [2021-10-28 09:14:02,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:02,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980663975] [2021-10-28 09:14:02,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:02,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:03,111 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:03,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:03,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980663975] [2021-10-28 09:14:03,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980663975] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:03,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822638047] [2021-10-28 09:14:03,111 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 09:14:03,112 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:03,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:14:03,116 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:14:03,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-10-28 09:14:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:04,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 09:14:04,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:04,741 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:04,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822638047] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:04,741 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:14:04,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 21 [2021-10-28 09:14:04,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179430643] [2021-10-28 09:14:04,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 09:14:04,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:04,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 09:14:04,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:14:04,743 INFO L87 Difference]: Start difference. First operand 218 states and 238 transitions. Second operand has 21 states, 21 states have (on average 6.142857142857143) internal successors, (129), 21 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:04,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:14:04,842 INFO L93 Difference]: Finished difference Result 371 states and 410 transitions. [2021-10-28 09:14:04,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 09:14:04,842 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.142857142857143) internal successors, (129), 21 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-10-28 09:14:04,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:14:04,843 INFO L225 Difference]: With dead ends: 371 [2021-10-28 09:14:04,843 INFO L226 Difference]: Without dead ends: 250 [2021-10-28 09:14:04,844 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:14:04,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-28 09:14:04,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 223. [2021-10-28 09:14:04,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 216 states have (on average 1.1296296296296295) internal successors, (244), 222 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:04,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 244 transitions. [2021-10-28 09:14:04,856 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 244 transitions. Word has length 122 [2021-10-28 09:14:04,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:14:04,856 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 244 transitions. [2021-10-28 09:14:04,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.142857142857143) internal successors, (129), 21 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:04,857 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 244 transitions. [2021-10-28 09:14:04,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-10-28 09:14:04,858 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:14:04,858 INFO L513 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:14:04,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2021-10-28 09:14:05,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:05,084 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:14:05,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:05,085 INFO L85 PathProgramCache]: Analyzing trace with hash -373433703, now seen corresponding path program 14 times [2021-10-28 09:14:05,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:05,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854977218] [2021-10-28 09:14:05,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:05,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:05,376 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:05,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:05,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854977218] [2021-10-28 09:14:05,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854977218] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:05,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792168230] [2021-10-28 09:14:05,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:14:05,377 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:05,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:14:05,377 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:14:05,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-10-28 09:14:06,539 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:14:06,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:14:06,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-28 09:14:06,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:07,370 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:07,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792168230] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:07,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:14:07,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 21 [2021-10-28 09:14:07,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021187568] [2021-10-28 09:14:07,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 09:14:07,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:07,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 09:14:07,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:14:07,373 INFO L87 Difference]: Start difference. First operand 223 states and 244 transitions. Second operand has 21 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 21 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:07,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:14:07,937 INFO L93 Difference]: Finished difference Result 349 states and 388 transitions. [2021-10-28 09:14:07,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 09:14:07,938 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 21 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2021-10-28 09:14:07,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:14:07,939 INFO L225 Difference]: With dead ends: 349 [2021-10-28 09:14:07,940 INFO L226 Difference]: Without dead ends: 225 [2021-10-28 09:14:07,940 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 107 SyntacticMatches, 16 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:14:07,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-10-28 09:14:07,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 223. [2021-10-28 09:14:07,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 216 states have (on average 1.125) internal successors, (243), 222 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:07,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 243 transitions. [2021-10-28 09:14:07,975 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 243 transitions. Word has length 123 [2021-10-28 09:14:07,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:14:07,976 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 243 transitions. [2021-10-28 09:14:07,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 21 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:07,976 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 243 transitions. [2021-10-28 09:14:07,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-10-28 09:14:07,977 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:14:07,977 INFO L513 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 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, 1, 1, 1, 1, 1] [2021-10-28 09:14:07,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2021-10-28 09:14:08,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2021-10-28 09:14:08,186 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:14:08,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:08,186 INFO L85 PathProgramCache]: Analyzing trace with hash -866620944, now seen corresponding path program 14 times [2021-10-28 09:14:08,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:08,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604539935] [2021-10-28 09:14:08,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:08,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:08,431 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:08,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:08,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604539935] [2021-10-28 09:14:08,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604539935] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:08,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440149] [2021-10-28 09:14:08,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:14:08,432 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:08,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:14:08,433 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:14:08,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-10-28 09:14:09,727 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:14:09,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:14:09,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 09:14:09,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:10,030 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:10,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440149] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:10,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:14:10,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 22 [2021-10-28 09:14:10,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982987953] [2021-10-28 09:14:10,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-28 09:14:10,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:10,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-28 09:14:10,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-28 09:14:10,031 INFO L87 Difference]: Start difference. First operand 223 states and 243 transitions. Second operand has 22 states, 22 states have (on average 6.090909090909091) internal successors, (134), 22 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:10,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:14:10,154 INFO L93 Difference]: Finished difference Result 376 states and 415 transitions. [2021-10-28 09:14:10,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 09:14:10,155 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.090909090909091) internal successors, (134), 22 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2021-10-28 09:14:10,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:14:10,156 INFO L225 Difference]: With dead ends: 376 [2021-10-28 09:14:10,156 INFO L226 Difference]: Without dead ends: 255 [2021-10-28 09:14:10,157 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-28 09:14:10,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-10-28 09:14:10,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 228. [2021-10-28 09:14:10,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 221 states have (on average 1.1266968325791855) internal successors, (249), 227 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:10,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 249 transitions. [2021-10-28 09:14:10,194 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 249 transitions. Word has length 127 [2021-10-28 09:14:10,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:14:10,195 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 249 transitions. [2021-10-28 09:14:10,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.090909090909091) internal successors, (134), 22 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:10,195 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 249 transitions. [2021-10-28 09:14:10,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-10-28 09:14:10,195 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:14:10,196 INFO L513 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:14:10,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2021-10-28 09:14:10,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2021-10-28 09:14:10,396 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:14:10,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:10,397 INFO L85 PathProgramCache]: Analyzing trace with hash 395217742, now seen corresponding path program 15 times [2021-10-28 09:14:10,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:10,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043588716] [2021-10-28 09:14:10,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:10,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:10,695 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:10,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:10,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043588716] [2021-10-28 09:14:10,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043588716] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:10,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344999161] [2021-10-28 09:14:10,696 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 09:14:10,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:10,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:14:10,697 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:14:10,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-10-28 09:14:12,194 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2021-10-28 09:14:12,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:14:12,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-28 09:14:12,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:13,127 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:13,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344999161] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:13,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:14:13,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 22 [2021-10-28 09:14:13,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450567337] [2021-10-28 09:14:13,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-28 09:14:13,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:13,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-28 09:14:13,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2021-10-28 09:14:13,130 INFO L87 Difference]: Start difference. First operand 228 states and 249 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:13,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:14:13,558 INFO L93 Difference]: Finished difference Result 354 states and 393 transitions. [2021-10-28 09:14:13,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 09:14:13,558 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-10-28 09:14:13,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:14:13,559 INFO L225 Difference]: With dead ends: 354 [2021-10-28 09:14:13,560 INFO L226 Difference]: Without dead ends: 230 [2021-10-28 09:14:13,560 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 111 SyntacticMatches, 17 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2021-10-28 09:14:13,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-10-28 09:14:13,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 228. [2021-10-28 09:14:13,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 221 states have (on average 1.1221719457013575) internal successors, (248), 227 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:13,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 248 transitions. [2021-10-28 09:14:13,571 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 248 transitions. Word has length 128 [2021-10-28 09:14:13,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:14:13,572 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 248 transitions. [2021-10-28 09:14:13,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:13,572 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 248 transitions. [2021-10-28 09:14:13,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-10-28 09:14:13,573 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:14:13,573 INFO L513 BasicCegarLoop]: trace histogram [20, 19, 19, 19, 19, 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, 1, 1, 1, 1, 1] [2021-10-28 09:14:13,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2021-10-28 09:14:13,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:13,784 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:14:13,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:13,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1279768613, now seen corresponding path program 15 times [2021-10-28 09:14:13,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:13,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971069912] [2021-10-28 09:14:13,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:13,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:14,052 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 893 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:14,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:14,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971069912] [2021-10-28 09:14:14,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971069912] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:14,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084695536] [2021-10-28 09:14:14,053 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 09:14:14,053 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:14,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:14:14,054 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:14:14,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-10-28 09:14:15,502 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 20 check-sat command(s) [2021-10-28 09:14:15,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:14:15,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 09:14:15,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:15,817 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 893 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:15,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084695536] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:15,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:14:15,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 23 [2021-10-28 09:14:15,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654137529] [2021-10-28 09:14:15,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-28 09:14:15,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:15,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 09:14:15,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-10-28 09:14:15,820 INFO L87 Difference]: Start difference. First operand 228 states and 248 transitions. Second operand has 23 states, 23 states have (on average 6.043478260869565) internal successors, (139), 23 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:15,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:14:15,955 INFO L93 Difference]: Finished difference Result 381 states and 420 transitions. [2021-10-28 09:14:15,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 09:14:15,956 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.043478260869565) internal successors, (139), 23 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2021-10-28 09:14:15,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:14:15,957 INFO L225 Difference]: With dead ends: 381 [2021-10-28 09:14:15,957 INFO L226 Difference]: Without dead ends: 260 [2021-10-28 09:14:15,957 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-10-28 09:14:15,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2021-10-28 09:14:15,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 233. [2021-10-28 09:14:15,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 226 states have (on average 1.1238938053097345) internal successors, (254), 232 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:15,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 254 transitions. [2021-10-28 09:14:15,965 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 254 transitions. Word has length 132 [2021-10-28 09:14:15,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:14:15,965 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 254 transitions. [2021-10-28 09:14:15,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.043478260869565) internal successors, (139), 23 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:15,966 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 254 transitions. [2021-10-28 09:14:15,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-10-28 09:14:15,966 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:14:15,966 INFO L513 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 18, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:14:15,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2021-10-28 09:14:16,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2021-10-28 09:14:16,167 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:14:16,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:16,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1786182727, now seen corresponding path program 16 times [2021-10-28 09:14:16,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:16,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468067335] [2021-10-28 09:14:16,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:16,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:16,494 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 0 proven. 855 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:16,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:16,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468067335] [2021-10-28 09:14:16,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468067335] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:16,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378862303] [2021-10-28 09:14:16,495 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 09:14:16,495 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:16,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:14:16,497 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:14:16,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-10-28 09:14:17,907 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 09:14:17,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:14:17,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-28 09:14:17,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:18,789 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 0 proven. 855 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:18,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378862303] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:18,790 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:14:18,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 23 [2021-10-28 09:14:18,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335654068] [2021-10-28 09:14:18,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-28 09:14:18,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:18,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 09:14:18,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-10-28 09:14:18,792 INFO L87 Difference]: Start difference. First operand 233 states and 254 transitions. Second operand has 23 states, 23 states have (on average 5.869565217391305) internal successors, (135), 23 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:19,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:14:19,383 INFO L93 Difference]: Finished difference Result 359 states and 398 transitions. [2021-10-28 09:14:19,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 09:14:19,383 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.869565217391305) internal successors, (135), 23 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-10-28 09:14:19,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:14:19,384 INFO L225 Difference]: With dead ends: 359 [2021-10-28 09:14:19,384 INFO L226 Difference]: Without dead ends: 235 [2021-10-28 09:14:19,385 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 115 SyntacticMatches, 18 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-10-28 09:14:19,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-10-28 09:14:19,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 233. [2021-10-28 09:14:19,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 226 states have (on average 1.1194690265486726) internal successors, (253), 232 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:19,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 253 transitions. [2021-10-28 09:14:19,392 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 253 transitions. Word has length 133 [2021-10-28 09:14:19,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:14:19,392 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 253 transitions. [2021-10-28 09:14:19,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.869565217391305) internal successors, (135), 23 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:19,393 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 253 transitions. [2021-10-28 09:14:19,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-10-28 09:14:19,393 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:14:19,393 INFO L513 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 20, 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, 1, 1, 1, 1, 1] [2021-10-28 09:14:19,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2021-10-28 09:14:19,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:19,610 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:14:19,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:19,610 INFO L85 PathProgramCache]: Analyzing trace with hash -567672048, now seen corresponding path program 16 times [2021-10-28 09:14:19,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:19,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939200034] [2021-10-28 09:14:19,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:19,610 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:19,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:19,941 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:19,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:19,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939200034] [2021-10-28 09:14:19,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939200034] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:19,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173491340] [2021-10-28 09:14:19,942 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 09:14:19,942 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:19,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:14:19,943 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:14:19,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-10-28 09:14:21,264 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 09:14:21,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:14:21,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 09:14:21,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:21,585 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:21,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173491340] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:21,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:14:21,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 24 [2021-10-28 09:14:21,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189568272] [2021-10-28 09:14:21,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-28 09:14:21,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:21,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-28 09:14:21,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-10-28 09:14:21,587 INFO L87 Difference]: Start difference. First operand 233 states and 253 transitions. Second operand has 24 states, 24 states have (on average 6.0) internal successors, (144), 24 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:21,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:14:21,725 INFO L93 Difference]: Finished difference Result 386 states and 425 transitions. [2021-10-28 09:14:21,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-28 09:14:21,725 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.0) internal successors, (144), 24 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2021-10-28 09:14:21,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:14:21,727 INFO L225 Difference]: With dead ends: 386 [2021-10-28 09:14:21,727 INFO L226 Difference]: Without dead ends: 265 [2021-10-28 09:14:21,727 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-10-28 09:14:21,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-10-28 09:14:21,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 238. [2021-10-28 09:14:21,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 231 states have (on average 1.121212121212121) internal successors, (259), 237 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:21,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 259 transitions. [2021-10-28 09:14:21,739 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 259 transitions. Word has length 137 [2021-10-28 09:14:21,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:14:21,740 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 259 transitions. [2021-10-28 09:14:21,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.0) internal successors, (144), 24 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:21,740 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 259 transitions. [2021-10-28 09:14:21,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-10-28 09:14:21,741 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:14:21,741 INFO L513 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:14:21,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2021-10-28 09:14:21,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:21,964 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:14:21,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:21,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1072698926, now seen corresponding path program 17 times [2021-10-28 09:14:21,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:21,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163175561] [2021-10-28 09:14:21,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:21,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:22,367 INFO L134 CoverageAnalysis]: Checked inductivity of 950 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:22,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:22,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163175561] [2021-10-28 09:14:22,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163175561] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:22,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838413015] [2021-10-28 09:14:22,368 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 09:14:22,368 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:22,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:14:22,369 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:14:22,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-10-28 09:14:23,749 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) [2021-10-28 09:14:23,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:14:23,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-28 09:14:23,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:24,746 INFO L134 CoverageAnalysis]: Checked inductivity of 950 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:24,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838413015] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:24,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:14:24,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 24 [2021-10-28 09:14:24,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376388835] [2021-10-28 09:14:24,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-28 09:14:24,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:24,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-28 09:14:24,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-10-28 09:14:24,748 INFO L87 Difference]: Start difference. First operand 238 states and 259 transitions. Second operand has 24 states, 24 states have (on average 5.833333333333333) internal successors, (140), 24 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:25,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:14:25,225 INFO L93 Difference]: Finished difference Result 364 states and 403 transitions. [2021-10-28 09:14:25,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-28 09:14:25,226 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.833333333333333) internal successors, (140), 24 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2021-10-28 09:14:25,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:14:25,227 INFO L225 Difference]: With dead ends: 364 [2021-10-28 09:14:25,227 INFO L226 Difference]: Without dead ends: 240 [2021-10-28 09:14:25,228 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 119 SyntacticMatches, 19 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-10-28 09:14:25,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-10-28 09:14:25,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 238. [2021-10-28 09:14:25,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 231 states have (on average 1.1168831168831168) internal successors, (258), 237 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:25,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 258 transitions. [2021-10-28 09:14:25,237 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 258 transitions. Word has length 138 [2021-10-28 09:14:25,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:14:25,237 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 258 transitions. [2021-10-28 09:14:25,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.833333333333333) internal successors, (140), 24 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:25,237 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 258 transitions. [2021-10-28 09:14:25,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-10-28 09:14:25,238 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:14:25,239 INFO L513 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 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, 1, 1, 1, 1, 1] [2021-10-28 09:14:25,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2021-10-28 09:14:25,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-10-28 09:14:25,452 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:14:25,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:25,452 INFO L85 PathProgramCache]: Analyzing trace with hash 19452677, now seen corresponding path program 17 times [2021-10-28 09:14:25,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:25,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738097419] [2021-10-28 09:14:25,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:25,453 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:25,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:25,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:25,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738097419] [2021-10-28 09:14:25,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738097419] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:25,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648899240] [2021-10-28 09:14:25,752 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 09:14:25,752 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:25,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:14:25,753 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:14:25,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-10-28 09:14:27,446 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s) [2021-10-28 09:14:27,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:14:27,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-28 09:14:27,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:27,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:27,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648899240] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:27,769 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:14:27,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 25 [2021-10-28 09:14:27,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944862867] [2021-10-28 09:14:27,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-28 09:14:27,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:27,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-28 09:14:27,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-10-28 09:14:27,770 INFO L87 Difference]: Start difference. First operand 238 states and 258 transitions. Second operand has 25 states, 25 states have (on average 5.96) internal successors, (149), 25 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:27,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:14:27,908 INFO L93 Difference]: Finished difference Result 391 states and 430 transitions. [2021-10-28 09:14:27,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-28 09:14:27,909 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.96) internal successors, (149), 25 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2021-10-28 09:14:27,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:14:27,910 INFO L225 Difference]: With dead ends: 391 [2021-10-28 09:14:27,910 INFO L226 Difference]: Without dead ends: 270 [2021-10-28 09:14:27,910 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-10-28 09:14:27,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-10-28 09:14:27,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 243. [2021-10-28 09:14:27,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 236 states have (on average 1.11864406779661) internal successors, (264), 242 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:27,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 264 transitions. [2021-10-28 09:14:27,923 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 264 transitions. Word has length 142 [2021-10-28 09:14:27,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:14:27,923 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 264 transitions. [2021-10-28 09:14:27,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.96) internal successors, (149), 25 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:27,924 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 264 transitions. [2021-10-28 09:14:27,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-10-28 09:14:27,925 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:14:27,925 INFO L513 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 20, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:14:27,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2021-10-28 09:14:28,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-10-28 09:14:28,148 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:14:28,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:28,148 INFO L85 PathProgramCache]: Analyzing trace with hash 2093696217, now seen corresponding path program 18 times [2021-10-28 09:14:28,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:28,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490702390] [2021-10-28 09:14:28,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:28,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:28,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 0 proven. 1050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:28,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:28,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490702390] [2021-10-28 09:14:28,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490702390] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:28,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379393862] [2021-10-28 09:14:28,591 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 09:14:28,591 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:28,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:14:28,592 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:14:28,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-10-28 09:14:55,444 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2021-10-28 09:14:55,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:14:55,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-28 09:14:55,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:56,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 0 proven. 1050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:56,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379393862] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:56,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:14:56,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 25 [2021-10-28 09:14:56,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742159584] [2021-10-28 09:14:56,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-28 09:14:56,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:56,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-28 09:14:56,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-28 09:14:56,611 INFO L87 Difference]: Start difference. First operand 243 states and 264 transitions. Second operand has 25 states, 25 states have (on average 5.8) internal successors, (145), 25 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:57,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:14:57,221 INFO L93 Difference]: Finished difference Result 369 states and 408 transitions. [2021-10-28 09:14:57,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-28 09:14:57,222 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.8) internal successors, (145), 25 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2021-10-28 09:14:57,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:14:57,223 INFO L225 Difference]: With dead ends: 369 [2021-10-28 09:14:57,223 INFO L226 Difference]: Without dead ends: 245 [2021-10-28 09:14:57,224 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 123 SyntacticMatches, 20 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-28 09:14:57,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-10-28 09:14:57,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 243. [2021-10-28 09:14:57,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 236 states have (on average 1.1144067796610169) internal successors, (263), 242 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:57,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 263 transitions. [2021-10-28 09:14:57,239 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 263 transitions. Word has length 143 [2021-10-28 09:14:57,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:14:57,239 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 263 transitions. [2021-10-28 09:14:57,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.8) internal successors, (145), 25 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:57,240 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 263 transitions. [2021-10-28 09:14:57,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-10-28 09:14:57,240 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:14:57,240 INFO L513 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 22, 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, 1, 1, 1, 1, 1] [2021-10-28 09:14:57,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-10-28 09:14:57,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:57,441 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:14:57,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:57,441 INFO L85 PathProgramCache]: Analyzing trace with hash -366562256, now seen corresponding path program 18 times [2021-10-28 09:14:57,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:57,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830227746] [2021-10-28 09:14:57,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:57,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:57,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:57,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:57,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830227746] [2021-10-28 09:14:57,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830227746] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:57,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827838330] [2021-10-28 09:14:57,725 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 09:14:57,725 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:57,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:14:57,727 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:14:57,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2021-10-28 09:14:59,803 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 23 check-sat command(s) [2021-10-28 09:14:59,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:14:59,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 09:14:59,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:15:00,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:15:00,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827838330] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:15:00,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:15:00,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 26 [2021-10-28 09:15:00,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191692289] [2021-10-28 09:15:00,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-28 09:15:00,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:15:00,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-28 09:15:00,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-10-28 09:15:00,174 INFO L87 Difference]: Start difference. First operand 243 states and 263 transitions. Second operand has 26 states, 26 states have (on average 5.923076923076923) internal successors, (154), 26 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:15:00,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:15:00,331 INFO L93 Difference]: Finished difference Result 396 states and 435 transitions. [2021-10-28 09:15:00,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-28 09:15:00,331 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.923076923076923) internal successors, (154), 26 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2021-10-28 09:15:00,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:15:00,333 INFO L225 Difference]: With dead ends: 396 [2021-10-28 09:15:00,333 INFO L226 Difference]: Without dead ends: 275 [2021-10-28 09:15:00,334 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-10-28 09:15:00,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-10-28 09:15:00,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 248. [2021-10-28 09:15:00,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 241 states have (on average 1.116182572614108) internal successors, (269), 247 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:15:00,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 269 transitions. [2021-10-28 09:15:00,347 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 269 transitions. Word has length 147 [2021-10-28 09:15:00,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:15:00,347 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 269 transitions. [2021-10-28 09:15:00,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.923076923076923) internal successors, (154), 26 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:15:00,349 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 269 transitions. [2021-10-28 09:15:00,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-10-28 09:15:00,350 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:15:00,351 INFO L513 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 21, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:15:00,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2021-10-28 09:15:00,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:15:00,556 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:15:00,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:15:00,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1282832114, now seen corresponding path program 19 times [2021-10-28 09:15:00,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:15:00,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533229357] [2021-10-28 09:15:00,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:15:00,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:15:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:15:01,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 0 proven. 1155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:15:01,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:15:01,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533229357] [2021-10-28 09:15:01,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533229357] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:15:01,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422011093] [2021-10-28 09:15:01,026 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 09:15:01,026 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:15:01,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:15:01,027 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:15:01,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2021-10-28 09:15:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:15:02,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-28 09:15:02,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:15:04,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 0 proven. 1155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:15:04,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422011093] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:15:04,069 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:15:04,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 26 [2021-10-28 09:15:04,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975904720] [2021-10-28 09:15:04,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-28 09:15:04,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:15:04,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-28 09:15:04,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2021-10-28 09:15:04,070 INFO L87 Difference]: Start difference. First operand 248 states and 269 transitions. Second operand has 26 states, 26 states have (on average 5.769230769230769) internal successors, (150), 26 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:15:04,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:15:04,573 INFO L93 Difference]: Finished difference Result 374 states and 413 transitions. [2021-10-28 09:15:04,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-28 09:15:04,573 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.769230769230769) internal successors, (150), 26 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2021-10-28 09:15:04,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:15:04,574 INFO L225 Difference]: With dead ends: 374 [2021-10-28 09:15:04,575 INFO L226 Difference]: Without dead ends: 250 [2021-10-28 09:15:04,575 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 127 SyntacticMatches, 21 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2021-10-28 09:15:04,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-28 09:15:04,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 248. [2021-10-28 09:15:04,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 241 states have (on average 1.112033195020747) internal successors, (268), 247 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:15:04,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 268 transitions. [2021-10-28 09:15:04,583 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 268 transitions. Word has length 148 [2021-10-28 09:15:04,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:15:04,583 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 268 transitions. [2021-10-28 09:15:04,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.769230769230769) internal successors, (150), 26 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:15:04,584 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 268 transitions. [2021-10-28 09:15:04,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-10-28 09:15:04,584 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:15:04,585 INFO L513 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:15:04,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2021-10-28 09:15:04,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2021-10-28 09:15:04,788 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:15:04,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:15:04,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1393415653, now seen corresponding path program 19 times [2021-10-28 09:15:04,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:15:04,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450679308] [2021-10-28 09:15:04,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:15:04,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:15:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:15:05,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 0 proven. 1311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:15:05,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:15:05,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450679308] [2021-10-28 09:15:05,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450679308] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:15:05,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270335259] [2021-10-28 09:15:05,147 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 09:15:05,147 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:15:05,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:15:05,150 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:15:05,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-10-28 09:15:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:15:06,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-28 09:15:06,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:15:07,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 0 proven. 1311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:15:07,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270335259] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:15:07,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:15:07,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 27 [2021-10-28 09:15:07,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786987427] [2021-10-28 09:15:07,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-28 09:15:07,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:15:07,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-28 09:15:07,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-10-28 09:15:07,214 INFO L87 Difference]: Start difference. First operand 248 states and 268 transitions. Second operand has 27 states, 27 states have (on average 5.888888888888889) internal successors, (159), 27 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:15:07,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:15:07,372 INFO L93 Difference]: Finished difference Result 401 states and 440 transitions. [2021-10-28 09:15:07,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-28 09:15:07,373 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.888888888888889) internal successors, (159), 27 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2021-10-28 09:15:07,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:15:07,375 INFO L225 Difference]: With dead ends: 401 [2021-10-28 09:15:07,375 INFO L226 Difference]: Without dead ends: 280 [2021-10-28 09:15:07,375 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-10-28 09:15:07,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-10-28 09:15:07,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 253. [2021-10-28 09:15:07,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 246 states have (on average 1.113821138211382) internal successors, (274), 252 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:15:07,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 274 transitions. [2021-10-28 09:15:07,388 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 274 transitions. Word has length 152 [2021-10-28 09:15:07,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:15:07,389 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 274 transitions. [2021-10-28 09:15:07,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.888888888888889) internal successors, (159), 27 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:15:07,389 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 274 transitions. [2021-10-28 09:15:07,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-10-28 09:15:07,390 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:15:07,390 INFO L513 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 22, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:15:07,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2021-10-28 09:15:07,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:15:07,604 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:15:07,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:15:07,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1736875513, now seen corresponding path program 20 times [2021-10-28 09:15:07,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:15:07,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150159215] [2021-10-28 09:15:07,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:15:07,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:15:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:15:08,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:15:08,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:15:08,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150159215] [2021-10-28 09:15:08,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150159215] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:15:08,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143326577] [2021-10-28 09:15:08,083 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:15:08,083 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:15:08,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:15:08,088 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:15:08,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-10-28 09:15:09,975 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:15:09,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:15:09,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 51 conjunts are in the unsatisfiable core [2021-10-28 09:15:09,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:15:11,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:15:11,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143326577] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:15:11,348 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:15:11,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 27 [2021-10-28 09:15:11,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498285762] [2021-10-28 09:15:11,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-28 09:15:11,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:15:11,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-28 09:15:11,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2021-10-28 09:15:11,349 INFO L87 Difference]: Start difference. First operand 253 states and 274 transitions. Second operand has 27 states, 27 states have (on average 5.7407407407407405) internal successors, (155), 27 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:15:12,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:15:12,120 INFO L93 Difference]: Finished difference Result 379 states and 418 transitions. [2021-10-28 09:15:12,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-28 09:15:12,121 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.7407407407407405) internal successors, (155), 27 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2021-10-28 09:15:12,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:15:12,122 INFO L225 Difference]: With dead ends: 379 [2021-10-28 09:15:12,122 INFO L226 Difference]: Without dead ends: 255 [2021-10-28 09:15:12,122 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 131 SyntacticMatches, 22 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2021-10-28 09:15:12,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-10-28 09:15:12,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 253. [2021-10-28 09:15:12,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 246 states have (on average 1.1097560975609757) internal successors, (273), 252 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:15:12,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 273 transitions. [2021-10-28 09:15:12,134 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 273 transitions. Word has length 153 [2021-10-28 09:15:12,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:15:12,135 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 273 transitions. [2021-10-28 09:15:12,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.7407407407407405) internal successors, (155), 27 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:15:12,135 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 273 transitions. [2021-10-28 09:15:12,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-10-28 09:15:12,136 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:15:12,136 INFO L513 BasicCegarLoop]: trace histogram [25, 24, 24, 24, 24, 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, 1, 1, 1, 1, 1] [2021-10-28 09:15:12,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-10-28 09:15:12,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:15:12,348 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:15:12,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:15:12,348 INFO L85 PathProgramCache]: Analyzing trace with hash -414155440, now seen corresponding path program 20 times [2021-10-28 09:15:12,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:15:12,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972719884] [2021-10-28 09:15:12,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:15:12,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:15:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:15:12,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 0 proven. 1428 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:15:12,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:15:12,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972719884] [2021-10-28 09:15:12,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972719884] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:15:12,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89114009] [2021-10-28 09:15:12,697 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:15:12,697 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:15:12,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:15:12,704 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:15:12,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-10-28 09:15:14,626 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:15:14,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:15:14,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-28 09:15:14,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:15:15,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 0 proven. 1428 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:15:15,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89114009] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:15:15,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:15:15,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 28 [2021-10-28 09:15:15,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849323716] [2021-10-28 09:15:15,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-28 09:15:15,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:15:15,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-28 09:15:15,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-10-28 09:15:15,038 INFO L87 Difference]: Start difference. First operand 253 states and 273 transitions. Second operand has 28 states, 28 states have (on average 5.857142857142857) internal successors, (164), 28 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:15:15,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:15:15,217 INFO L93 Difference]: Finished difference Result 406 states and 445 transitions. [2021-10-28 09:15:15,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-28 09:15:15,217 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 5.857142857142857) internal successors, (164), 28 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2021-10-28 09:15:15,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:15:15,218 INFO L225 Difference]: With dead ends: 406 [2021-10-28 09:15:15,218 INFO L226 Difference]: Without dead ends: 285 [2021-10-28 09:15:15,219 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-10-28 09:15:15,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-10-28 09:15:15,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 258. [2021-10-28 09:15:15,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 251 states have (on average 1.1115537848605577) internal successors, (279), 257 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:15:15,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 279 transitions. [2021-10-28 09:15:15,237 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 279 transitions. Word has length 157 [2021-10-28 09:15:15,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:15:15,238 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 279 transitions. [2021-10-28 09:15:15,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.857142857142857) internal successors, (164), 28 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:15:15,238 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 279 transitions. [2021-10-28 09:15:15,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-10-28 09:15:15,239 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:15:15,239 INFO L513 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:15:15,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2021-10-28 09:15:15,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2021-10-28 09:15:15,452 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2021-10-28 09:15:15,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:15:15,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1536746478, now seen corresponding path program 21 times [2021-10-28 09:15:15,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:15:15,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502724231] [2021-10-28 09:15:15,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:15:15,453 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:15:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:15:15,565 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:15:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:15:15,708 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:15:15,708 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:15:15,709 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,717 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,717 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,717 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,717 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:15:15,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-10-28 09:15:15,726 INFO L731 BasicCegarLoop]: Path program histogram: [21, 20, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:15:15,731 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:15:15,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:15:15 BoogieIcfgContainer [2021-10-28 09:15:15,868 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:15:15,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:15:15,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:15:15,870 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:15:15,871 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:13:04" (3/4) ... [2021-10-28 09:15:15,877 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:15:15,877 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:15:15,879 INFO L168 Benchmark]: Toolchain (without parser) took 132230.16 ms. Allocated memory was 81.8 MB in the beginning and 545.3 MB in the end (delta: 463.5 MB). Free memory was 43.9 MB in the beginning and 78.1 MB in the end (delta: -34.2 MB). Peak memory consumption was 429.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:15:15,879 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 81.8 MB. Free memory is still 60.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:15:15,880 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.67 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 43.7 MB in the beginning and 73.0 MB in the end (delta: -29.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:15:15,880 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.91 ms. Allocated memory is still 98.6 MB. Free memory was 73.0 MB in the beginning and 70.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:15:15,881 INFO L168 Benchmark]: Boogie Preprocessor took 67.76 ms. Allocated memory is still 98.6 MB. Free memory was 70.5 MB in the beginning and 68.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:15:15,881 INFO L168 Benchmark]: RCFGBuilder took 535.66 ms. Allocated memory is still 98.6 MB. Free memory was 68.8 MB in the beginning and 49.9 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:15:15,881 INFO L168 Benchmark]: TraceAbstraction took 131230.23 ms. Allocated memory was 98.6 MB in the beginning and 545.3 MB in the end (delta: 446.7 MB). Free memory was 49.6 MB in the beginning and 78.1 MB in the end (delta: -28.6 MB). Peak memory consumption was 431.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:15:15,882 INFO L168 Benchmark]: Witness Printer took 7.08 ms. Allocated memory is still 545.3 MB. Free memory is still 78.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:15:15,885 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 81.8 MB. Free memory is still 60.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 314.67 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 43.7 MB in the beginning and 73.0 MB in the end (delta: -29.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.91 ms. Allocated memory is still 98.6 MB. Free memory was 73.0 MB in the beginning and 70.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.76 ms. Allocated memory is still 98.6 MB. Free memory was 70.5 MB in the beginning and 68.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 535.66 ms. Allocated memory is still 98.6 MB. Free memory was 68.8 MB in the beginning and 49.9 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 131230.23 ms. Allocated memory was 98.6 MB in the beginning and 545.3 MB in the end (delta: 446.7 MB). Free memory was 49.6 MB in the beginning and 78.1 MB in the end (delta: -28.6 MB). Peak memory consumption was 431.3 MB. Max. memory is 16.1 GB. * Witness Printer took 7.08 ms. Allocated memory is still 545.3 MB. Free memory is still 78.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * 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: 167]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 165, overapproximation of bitwiseAnd at line 166. Possible FailurePath: [L213] unsigned int a ; [L214] unsigned int ma = __VERIFIER_nondet_uint(); [L215] signed char ea = __VERIFIER_nondet_char(); [L216] unsigned int b ; [L217] unsigned int mb = __VERIFIER_nondet_uint(); [L218] signed char eb = __VERIFIER_nondet_char(); [L219] unsigned int r_mul ; [L220] unsigned int zero ; [L221] unsigned int one ; [L222] int sb ; [L223] int tmp ; [L224] int tmp___0 ; [L225] int tmp___1 ; [L226] int __retres16 ; [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L230] zero = base2flt(0, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND FALSE !(m < 1U << 24U) [L68] m = m & ~ (1U << 24U) [L69] EXPR e + 128 [L69] res = m | ((unsigned int )(e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L231] one = base2flt(1, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND TRUE m >= 1U << 25U [L56] COND TRUE e >= 127 [L57] __retres4 = 4294967295U [L72] return (__retres4); [L232] a = base2flt(ma, ea) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND FALSE !(m >= 1U << 25U) [L68] m = m & ~ (1U << 24U) [L69] EXPR e + 128 [L69] res = m | ((unsigned int )(e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L233] b = base2flt(mb, eb) [L235] COND FALSE !(b < zero) [L238] COND TRUE b > zero [L239] tmp = 1 [L243] sb = tmp [L140] unsigned int res ; [L141] unsigned int ma ; [L142] unsigned int mb ; [L143] unsigned long long accu ; [L144] int ea ; [L145] int eb ; [L146] unsigned int tmp ; [L147] unsigned int __retres10 ; [L150] COND FALSE !(a < b) [L157] COND FALSE !(! b) [L163] ma = a & ((1U << 24U) - 1U) [L164] EXPR (int )(a >> 24U) - 128 [L164] ea = (int )(a >> 24U) - 128 [L165] ma = ma | (1U << 24U) [L166] mb = b & ((1U << 24U) - 1U) [L167] (int )(b >> 24U) - 128 - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 164]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 164]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 167]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 169]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 169]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 170]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 170]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 193]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 193]: 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 1 procedures, 139 locations, 34 error locations. Started 1 CEGAR loops. OverallTime: 131.0s, OverallIterations: 67, TraceHistogramMax: 25, PathProgramHistogramMax: 21, EmptinessCheckTime: 0.0s, AutomataDifference: 12.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 7039 SDtfs, 7509 SDslu, 32378 SDs, 0 SdLazy, 19107 SolverSat, 911 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5721 GetRequests, 4657 SyntacticMatches, 253 SemanticMatches, 811 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1244 ImplicationChecksByTransitivity, 10.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=258occurred in iteration=66, InterpolantAutomatonStates: 882, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 66 MinimizatonAttempts, 1466 StatesRemovedByMinimization, 64 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 35.8s SatisfiabilityAnalysisTime, 31.1s InterpolantComputationTime, 10189 NumberOfCodeBlocks, 10164 NumberOfCodeBlocksAsserted, 381 NumberOfCheckSat, 9911 ConstructedInterpolants, 0 QuantifiedInterpolants, 39587 SizeOfPredicates, 108 NumberOfNonLiveVariables, 12719 ConjunctsInSsa, 1140 ConjunctsInUnsatCore, 120 InterpolantComputations, 21 PerfectInterpolantSequences, 132/44695 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 [2021-10-28 09:15:15,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c048ee-4889-46b0-9a4c-76a5fba98894/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...