./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/McCarthy91-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/McCarthy91-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY --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 2a5dd5c1c64cd1875ba800cc2db6d1da955f2d2f519c1964ff87558bc42b9b4c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:18:43,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:18:43,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:18:43,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:18:43,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:18:43,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:18:43,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:18:43,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:18:43,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:18:43,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:18:43,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:18:43,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:18:43,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:18:43,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:18:43,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:18:43,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:18:43,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:18:44,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:18:44,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:18:44,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:18:44,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:18:44,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:18:44,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:18:44,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:18:44,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:18:44,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:18:44,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:18:44,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:18:44,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:18:44,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:18:44,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:18:44,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:18:44,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:18:44,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:18:44,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:18:44,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:18:44,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:18:44,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:18:44,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:18:44,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:18:44,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:18:44,051 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-11-07 08:18:44,089 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:18:44,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:18:44,092 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:18:44,092 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:18:44,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:18:44,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:18:44,099 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:18:44,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:18:44,100 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:18:44,100 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 08:18:44,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:18:44,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:18:44,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:18:44,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:18:44,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:18:44,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:18:44,103 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-07 08:18:44,104 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:18:44,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:18:44,104 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:18:44,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:18:44,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:18:44,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:18:44,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:18:44,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:18:44,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:18:44,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:18:44,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:18:44,107 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:18:44,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:18:44,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:18:44,110 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:18:44,110 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_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a5dd5c1c64cd1875ba800cc2db6d1da955f2d2f519c1964ff87558bc42b9b4c [2021-11-07 08:18:44,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:18:44,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:18:44,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:18:44,571 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:18:44,572 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:18:44,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/recursive/McCarthy91-2.c [2021-11-07 08:18:44,663 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/data/ddb20e607/f82aa0de6ccb411ba8b510a64f09c91a/FLAGdd10a58e4 [2021-11-07 08:18:45,210 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:18:45,213 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/sv-benchmarks/c/recursive/McCarthy91-2.c [2021-11-07 08:18:45,226 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/data/ddb20e607/f82aa0de6ccb411ba8b510a64f09c91a/FLAGdd10a58e4 [2021-11-07 08:18:45,567 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/data/ddb20e607/f82aa0de6ccb411ba8b510a64f09c91a [2021-11-07 08:18:45,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:18:45,573 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:18:45,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:18:45,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:18:45,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:18:45,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:18:45" (1/1) ... [2021-11-07 08:18:45,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b4d6979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:18:45, skipping insertion in model container [2021-11-07 08:18:45,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:18:45" (1/1) ... [2021-11-07 08:18:45,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:18:45,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:18:45,850 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_79105177-3ca8-42fa-8898-18bccb97a4ed/sv-benchmarks/c/recursive/McCarthy91-2.c[749,762] [2021-11-07 08:18:45,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:18:45,874 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:18:45,892 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_79105177-3ca8-42fa-8898-18bccb97a4ed/sv-benchmarks/c/recursive/McCarthy91-2.c[749,762] [2021-11-07 08:18:45,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:18:45,920 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:18:45,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:18:45 WrapperNode [2021-11-07 08:18:45,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:18:45,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:18:45,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:18:45,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:18:45,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:18:45" (1/1) ... [2021-11-07 08:18:45,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:18:45" (1/1) ... [2021-11-07 08:18:45,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:18:45,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:18:45,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:18:45,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:18:45,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:18:45" (1/1) ... [2021-11-07 08:18:45,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:18:45" (1/1) ... [2021-11-07 08:18:45,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:18:45" (1/1) ... [2021-11-07 08:18:45,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:18:45" (1/1) ... [2021-11-07 08:18:45,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:18:45" (1/1) ... [2021-11-07 08:18:45,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:18:45" (1/1) ... [2021-11-07 08:18:45,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:18:45" (1/1) ... [2021-11-07 08:18:45,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:18:45,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:18:45,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:18:45,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:18:46,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:18:45" (1/1) ... [2021-11-07 08:18:46,010 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:18:46,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:18:46,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:18:46,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:18:46,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:18:46,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:18:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:18:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:18:46,111 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2021-11-07 08:18:46,111 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2021-11-07 08:18:46,435 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:18:46,440 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-07 08:18:46,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:18:46 BoogieIcfgContainer [2021-11-07 08:18:46,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:18:46,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:18:46,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:18:46,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:18:46,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:18:45" (1/3) ... [2021-11-07 08:18:46,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b2c3223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:18:46, skipping insertion in model container [2021-11-07 08:18:46,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:18:45" (2/3) ... [2021-11-07 08:18:46,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b2c3223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:18:46, skipping insertion in model container [2021-11-07 08:18:46,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:18:46" (3/3) ... [2021-11-07 08:18:46,469 INFO L111 eAbstractionObserver]: Analyzing ICFG McCarthy91-2.c [2021-11-07 08:18:46,475 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:18:46,475 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-07 08:18:46,534 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:18:46,542 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 [2021-11-07 08:18:46,543 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-07 08:18:46,564 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-07 08:18:46,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 08:18:46,570 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:18:46,570 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 08:18:46,571 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-07 08:18:46,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:18:46,579 INFO L85 PathProgramCache]: Analyzing trace with hash 890872146, now seen corresponding path program 1 times [2021-11-07 08:18:46,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:18:46,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669346026] [2021-11-07 08:18:46,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:18:46,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:18:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:18:46,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:18:46,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:18:46,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669346026] [2021-11-07 08:18:46,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669346026] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:18:46,917 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:18:46,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:18:46,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876832906] [2021-11-07 08:18:46,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 08:18:46,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:18:46,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:18:46,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:18:46,971 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:18:47,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:18:47,118 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2021-11-07 08:18:47,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 08:18:47,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-07 08:18:47,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:18:47,133 INFO L225 Difference]: With dead ends: 53 [2021-11-07 08:18:47,133 INFO L226 Difference]: Without dead ends: 42 [2021-11-07 08:18:47,136 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:18:47,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-11-07 08:18:47,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2021-11-07 08:18:47,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.36) internal successors, (34), 29 states have internal predecessors, (34), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-07 08:18:47,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2021-11-07 08:18:47,192 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 6 [2021-11-07 08:18:47,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:18:47,193 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2021-11-07 08:18:47,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:18:47,194 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2021-11-07 08:18:47,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 08:18:47,195 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:18:47,195 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 08:18:47,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:18:47,196 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-07 08:18:47,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:18:47,197 INFO L85 PathProgramCache]: Analyzing trace with hash 890872306, now seen corresponding path program 1 times [2021-11-07 08:18:47,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:18:47,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934749428] [2021-11-07 08:18:47,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:18:47,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:18:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:18:47,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:18:47,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:18:47,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934749428] [2021-11-07 08:18:47,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934749428] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:18:47,237 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:18:47,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:18:47,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309283030] [2021-11-07 08:18:47,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:18:47,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:18:47,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:18:47,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:18:47,253 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:18:47,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:18:47,279 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2021-11-07 08:18:47,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:18:47,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-07 08:18:47,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:18:47,282 INFO L225 Difference]: With dead ends: 41 [2021-11-07 08:18:47,282 INFO L226 Difference]: Without dead ends: 40 [2021-11-07 08:18:47,283 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 [2021-11-07 08:18:47,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-11-07 08:18:47,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2021-11-07 08:18:47,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.28) internal successors, (32), 28 states have internal predecessors, (32), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-07 08:18:47,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2021-11-07 08:18:47,296 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 6 [2021-11-07 08:18:47,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:18:47,296 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2021-11-07 08:18:47,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:18:47,297 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2021-11-07 08:18:47,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 08:18:47,298 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:18:47,298 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:18:47,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 08:18:47,304 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-07 08:18:47,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:18:47,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1847232819, now seen corresponding path program 1 times [2021-11-07 08:18:47,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:18:47,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34196686] [2021-11-07 08:18:47,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:18:47,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:18:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:18:47,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:18:47,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:18:47,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34196686] [2021-11-07 08:18:47,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34196686] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:18:47,356 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:18:47,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:18:47,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934659198] [2021-11-07 08:18:47,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:18:47,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:18:47,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:18:47,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:18:47,359 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:18:47,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:18:47,392 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2021-11-07 08:18:47,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:18:47,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-07 08:18:47,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:18:47,395 INFO L225 Difference]: With dead ends: 40 [2021-11-07 08:18:47,395 INFO L226 Difference]: Without dead ends: 39 [2021-11-07 08:18:47,396 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 [2021-11-07 08:18:47,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-07 08:18:47,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2021-11-07 08:18:47,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.2) internal successors, (30), 27 states have internal predecessors, (30), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-07 08:18:47,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2021-11-07 08:18:47,410 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 7 [2021-11-07 08:18:47,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:18:47,411 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2021-11-07 08:18:47,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:18:47,411 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2021-11-07 08:18:47,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 08:18:47,412 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:18:47,412 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:18:47,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 08:18:47,413 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-07 08:18:47,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:18:47,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1847237784, now seen corresponding path program 1 times [2021-11-07 08:18:47,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:18:47,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75685325] [2021-11-07 08:18:47,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:18:47,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:18:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:18:47,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:18:47,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:18:47,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75685325] [2021-11-07 08:18:47,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75685325] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:18:47,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:18:47,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:18:47,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248268326] [2021-11-07 08:18:47,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 08:18:47,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:18:47,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:18:47,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:18:47,509 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:18:47,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:18:47,640 INFO L93 Difference]: Finished difference Result 51 states and 61 transitions. [2021-11-07 08:18:47,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 08:18:47,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-07 08:18:47,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:18:47,643 INFO L225 Difference]: With dead ends: 51 [2021-11-07 08:18:47,644 INFO L226 Difference]: Without dead ends: 50 [2021-11-07 08:18:47,644 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:18:47,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-07 08:18:47,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2021-11-07 08:18:47,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 36 states have internal predecessors, (40), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-07 08:18:47,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2021-11-07 08:18:47,658 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 7 [2021-11-07 08:18:47,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:18:47,686 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2021-11-07 08:18:47,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:18:47,687 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2021-11-07 08:18:47,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 08:18:47,688 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:18:47,688 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:18:47,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 08:18:47,689 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-07 08:18:47,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:18:47,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1878050790, now seen corresponding path program 1 times [2021-11-07 08:18:47,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:18:47,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875433839] [2021-11-07 08:18:47,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:18:47,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:18:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:18:47,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:18:47,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:18:47,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875433839] [2021-11-07 08:18:47,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875433839] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:18:47,778 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:18:47,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:18:47,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729521177] [2021-11-07 08:18:47,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 08:18:47,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:18:47,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:18:47,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:18:47,785 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:18:47,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:18:47,935 INFO L93 Difference]: Finished difference Result 69 states and 83 transitions. [2021-11-07 08:18:47,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 08:18:47,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-07 08:18:47,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:18:47,938 INFO L225 Difference]: With dead ends: 69 [2021-11-07 08:18:47,942 INFO L226 Difference]: Without dead ends: 68 [2021-11-07 08:18:47,947 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 08:18:47,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-07 08:18:47,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 59. [2021-11-07 08:18:47,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 45 states have internal predecessors, (50), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-07 08:18:47,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2021-11-07 08:18:47,967 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 68 transitions. Word has length 11 [2021-11-07 08:18:47,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:18:47,967 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 68 transitions. [2021-11-07 08:18:47,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:18:47,968 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 68 transitions. [2021-11-07 08:18:47,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 08:18:47,969 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:18:47,969 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:18:47,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 08:18:47,970 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-07 08:18:47,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:18:47,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1924896658, now seen corresponding path program 1 times [2021-11-07 08:18:47,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:18:47,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700571782] [2021-11-07 08:18:47,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:18:47,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:18:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:18:48,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-07 08:18:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:18:48,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:18:48,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:18:48,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700571782] [2021-11-07 08:18:48,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700571782] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:18:48,085 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:18:48,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:18:48,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147546225] [2021-11-07 08:18:48,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:18:48,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:18:48,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:18:48,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:18:48,088 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 08:18:48,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:18:48,114 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2021-11-07 08:18:48,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:18:48,127 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-11-07 08:18:48,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:18:48,129 INFO L225 Difference]: With dead ends: 59 [2021-11-07 08:18:48,129 INFO L226 Difference]: Without dead ends: 48 [2021-11-07 08:18:48,130 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:18:48,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-11-07 08:18:48,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-11-07 08:18:48,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 36 states have internal predecessors, (40), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-07 08:18:48,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2021-11-07 08:18:48,147 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 14 [2021-11-07 08:18:48,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:18:48,148 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2021-11-07 08:18:48,148 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 08:18:48,148 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2021-11-07 08:18:48,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-07 08:18:48,150 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:18:48,150 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:18:48,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 08:18:48,151 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-07 08:18:48,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:18:48,152 INFO L85 PathProgramCache]: Analyzing trace with hash -865388299, now seen corresponding path program 1 times [2021-11-07 08:18:48,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:18:48,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715885262] [2021-11-07 08:18:48,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:18:48,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:18:48,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:18:48,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-07 08:18:48,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:18:48,282 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 08:18:48,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:18:48,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715885262] [2021-11-07 08:18:48,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715885262] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:18:48,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329836902] [2021-11-07 08:18:48,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:18:48,284 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:18:48,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:18:48,292 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:18:48,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 08:18:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:18:48,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 08:18:48,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:18:48,675 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:18:48,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329836902] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:18:48,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 08:18:48,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2021-11-07 08:18:48,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492663736] [2021-11-07 08:18:48,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-07 08:18:48,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:18:48,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-07 08:18:48,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-11-07 08:18:48,683 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand has 15 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 6 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-07 08:18:49,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:18:49,031 INFO L93 Difference]: Finished difference Result 71 states and 90 transitions. [2021-11-07 08:18:49,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 08:18:49,032 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 6 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2021-11-07 08:18:49,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:18:49,036 INFO L225 Difference]: With dead ends: 71 [2021-11-07 08:18:49,038 INFO L226 Difference]: Without dead ends: 70 [2021-11-07 08:18:49,039 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2021-11-07 08:18:49,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-07 08:18:49,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 47. [2021-11-07 08:18:49,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 35 states have internal predecessors, (39), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-07 08:18:49,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2021-11-07 08:18:49,066 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 19 [2021-11-07 08:18:49,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:18:49,074 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2021-11-07 08:18:49,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 6 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-07 08:18:49,075 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2021-11-07 08:18:49,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-07 08:18:49,077 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:18:49,077 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:18:49,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 08:18:49,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-07 08:18:49,294 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-07 08:18:49,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:18:49,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1057228459, now seen corresponding path program 1 times [2021-11-07 08:18:49,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:18:49,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559908358] [2021-11-07 08:18:49,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:18:49,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:18:49,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:18:49,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-07 08:18:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:18:49,408 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 08:18:49,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:18:49,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559908358] [2021-11-07 08:18:49,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559908358] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:18:49,411 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:18:49,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 08:18:49,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657172743] [2021-11-07 08:18:49,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 08:18:49,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:18:49,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 08:18:49,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-07 08:18:49,415 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 08:18:49,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:18:49,559 INFO L93 Difference]: Finished difference Result 99 states and 128 transitions. [2021-11-07 08:18:49,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 08:18:49,560 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2021-11-07 08:18:49,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:18:49,568 INFO L225 Difference]: With dead ends: 99 [2021-11-07 08:18:49,568 INFO L226 Difference]: Without dead ends: 98 [2021-11-07 08:18:49,570 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:18:49,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-11-07 08:18:49,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 89. [2021-11-07 08:18:49,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 61 states have (on average 1.1147540983606556) internal successors, (68), 65 states have internal predecessors, (68), 19 states have call successors, (19), 6 states have call predecessors, (19), 8 states have return successors, (22), 17 states have call predecessors, (22), 16 states have call successors, (22) [2021-11-07 08:18:49,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 109 transitions. [2021-11-07 08:18:49,615 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 109 transitions. Word has length 20 [2021-11-07 08:18:49,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:18:49,616 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 109 transitions. [2021-11-07 08:18:49,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 08:18:49,617 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 109 transitions. [2021-11-07 08:18:49,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 08:18:49,624 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:18:49,624 INFO L513 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-11-07 08:18:49,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 08:18:49,625 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-07 08:18:49,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:18:49,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1543468454, now seen corresponding path program 1 times [2021-11-07 08:18:49,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:18:49,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155895970] [2021-11-07 08:18:49,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:18:49,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:18:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:18:49,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-07 08:18:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:18:49,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-07 08:18:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:18:49,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-07 08:18:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:18:49,840 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-07 08:18:49,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:18:49,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155895970] [2021-11-07 08:18:49,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155895970] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:18:49,848 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:18:49,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 08:18:49,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390962184] [2021-11-07 08:18:49,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 08:18:49,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:18:49,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 08:18:49,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-07 08:18:49,853 INFO L87 Difference]: Start difference. First operand 89 states and 109 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-07 08:18:50,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:18:50,061 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2021-11-07 08:18:50,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 08:18:50,062 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2021-11-07 08:18:50,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:18:50,063 INFO L225 Difference]: With dead ends: 93 [2021-11-07 08:18:50,063 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 08:18:50,071 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2021-11-07 08:18:50,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 08:18:50,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 08:18:50,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:18:50,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 08:18:50,072 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2021-11-07 08:18:50,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:18:50,072 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:18:50,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-07 08:18:50,073 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 08:18:50,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 08:18:50,076 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 08:18:50,077 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 08:18:50,078 INFO L764 garLoopResultBuilder]: Registering result SAFE for location f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 08:18:50,078 INFO L764 garLoopResultBuilder]: Registering result SAFE for location f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 08:18:50,078 INFO L764 garLoopResultBuilder]: Registering result SAFE for location f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 08:18:50,078 INFO L764 garLoopResultBuilder]: Registering result SAFE for location f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 08:18:50,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 08:18:50,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 08:18:50,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:18:50,468 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-11-07 08:18:50,468 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 08:18:50,468 INFO L857 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-11-07 08:18:50,468 INFO L857 garLoopResultBuilder]: For program point L29-2(line 29) no Hoare annotation was computed. [2021-11-07 08:18:50,468 INFO L857 garLoopResultBuilder]: For program point L29-3(line 29) no Hoare annotation was computed. [2021-11-07 08:18:50,469 INFO L857 garLoopResultBuilder]: For program point L29-4(line 29) no Hoare annotation was computed. [2021-11-07 08:18:50,469 INFO L857 garLoopResultBuilder]: For program point L29-6(line 29) no Hoare annotation was computed. [2021-11-07 08:18:50,469 INFO L857 garLoopResultBuilder]: For program point L29-7(lines 29 33) no Hoare annotation was computed. [2021-11-07 08:18:50,469 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-11-07 08:18:50,469 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 08:18:50,469 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-11-07 08:18:50,469 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 08:18:50,469 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 08:18:50,470 INFO L853 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) [2021-11-07 08:18:50,470 INFO L857 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-11-07 08:18:50,470 INFO L853 garLoopResultBuilder]: At program point L26(lines 26 34) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-11-07 08:18:50,470 INFO L857 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-11-07 08:18:50,470 INFO L857 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2021-11-07 08:18:50,470 INFO L857 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-11-07 08:18:50,472 INFO L853 garLoopResultBuilder]: At program point L21-2(line 21) the Hoare annotation is: (let ((.cse0 (= f91_~x |f91_#in~x|))) (and (or (not (<= 0 (+ |f91_#in~x| 2147483648))) .cse0 (not (<= |f91_#in~x| 2147483647))) (or (and (<= f91_~x 100) .cse0) (not (<= |f91_#in~x| 2147483648)) (not (<= 91 |f91_#in~x|))))) [2021-11-07 08:18:50,473 INFO L857 garLoopResultBuilder]: For program point f91EXIT(lines 17 23) no Hoare annotation was computed. [2021-11-07 08:18:50,473 INFO L857 garLoopResultBuilder]: For program point L18(lines 18 22) no Hoare annotation was computed. [2021-11-07 08:18:50,473 INFO L857 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-11-07 08:18:50,473 INFO L857 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2021-11-07 08:18:50,474 INFO L853 garLoopResultBuilder]: At program point L21-4(line 21) the Hoare annotation is: (let ((.cse0 (= f91_~x |f91_#in~x|))) (and (or (and (<= f91_~x 100) .cse0) (not (<= |f91_#in~x| 2147483648)) (not (<= 91 |f91_#in~x|))) (or (not (<= 0 (+ |f91_#in~x| 2147483648))) (not (<= |f91_#in~x| 2147483647)) (and (<= |f91_#t~ret7| 2147483648) (<= 91 |f91_#t~ret7|) .cse0)))) [2021-11-07 08:18:50,474 INFO L857 garLoopResultBuilder]: For program point L21-5(line 21) no Hoare annotation was computed. [2021-11-07 08:18:50,474 INFO L857 garLoopResultBuilder]: For program point f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-11-07 08:18:50,474 INFO L860 garLoopResultBuilder]: At program point f91ENTRY(lines 17 23) the Hoare annotation is: true [2021-11-07 08:18:50,474 INFO L857 garLoopResultBuilder]: For program point f91FINAL(lines 17 23) no Hoare annotation was computed. [2021-11-07 08:18:50,475 INFO L857 garLoopResultBuilder]: For program point f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-11-07 08:18:50,475 INFO L857 garLoopResultBuilder]: For program point f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-11-07 08:18:50,475 INFO L857 garLoopResultBuilder]: For program point f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-11-07 08:18:50,479 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:18:50,481 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 08:18:50,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:18:50 BoogieIcfgContainer [2021-11-07 08:18:50,509 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 08:18:50,511 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:18:50,511 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:18:50,511 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:18:50,511 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:18:46" (3/4) ... [2021-11-07 08:18:50,515 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 08:18:50,521 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f91 [2021-11-07 08:18:50,526 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-07 08:18:50,526 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-07 08:18:50,527 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 08:18:50,527 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 08:18:50,569 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/witness.graphml [2021-11-07 08:18:50,569 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:18:50,571 INFO L168 Benchmark]: Toolchain (without parser) took 4997.35 ms. Allocated memory was 115.3 MB in the beginning and 144.7 MB in the end (delta: 29.4 MB). Free memory was 73.4 MB in the beginning and 88.9 MB in the end (delta: -15.6 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2021-11-07 08:18:50,572 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 115.3 MB. Free memory is still 89.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:18:50,572 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.84 ms. Allocated memory is still 115.3 MB. Free memory was 73.1 MB in the beginning and 89.7 MB in the end (delta: -16.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 08:18:50,573 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.06 ms. Allocated memory is still 115.3 MB. Free memory was 89.7 MB in the beginning and 88.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:18:50,573 INFO L168 Benchmark]: Boogie Preprocessor took 23.27 ms. Allocated memory is still 115.3 MB. Free memory was 88.4 MB in the beginning and 87.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:18:50,574 INFO L168 Benchmark]: RCFGBuilder took 468.49 ms. Allocated memory is still 115.3 MB. Free memory was 87.2 MB in the beginning and 77.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 08:18:50,574 INFO L168 Benchmark]: TraceAbstraction took 4048.54 ms. Allocated memory was 115.3 MB in the beginning and 144.7 MB in the end (delta: 29.4 MB). Free memory was 76.4 MB in the beginning and 91.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. [2021-11-07 08:18:50,575 INFO L168 Benchmark]: Witness Printer took 58.72 ms. Allocated memory is still 144.7 MB. Free memory was 91.0 MB in the beginning and 88.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:18:50,578 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 115.3 MB. Free memory is still 89.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 343.84 ms. Allocated memory is still 115.3 MB. Free memory was 73.1 MB in the beginning and 89.7 MB in the end (delta: -16.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.06 ms. Allocated memory is still 115.3 MB. Free memory was 89.7 MB in the beginning and 88.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.27 ms. Allocated memory is still 115.3 MB. Free memory was 88.4 MB in the beginning and 87.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 468.49 ms. Allocated memory is still 115.3 MB. Free memory was 87.2 MB in the beginning and 77.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4048.54 ms. Allocated memory was 115.3 MB in the beginning and 144.7 MB in the end (delta: 29.4 MB). Free memory was 76.4 MB in the beginning and 91.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. * Witness Printer took 58.72 ms. Allocated memory is still 144.7 MB. Free memory was 91.0 MB in the beginning and 88.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 186 SDtfs, 218 SDslu, 346 SDs, 0 SdLazy, 441 SolverSat, 94 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=8, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 57 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 59 PreInvPairs, 60 NumberOfFragments, 82 HoareAnnotationTreeSize, 59 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 5 FomulaSimplificationsInter, 314 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 302 SizeOfPredicates, 4 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 53/61 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: x <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-11-07 08:18:50,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79105177-3ca8-42fa-8898-18bccb97a4ed/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE