./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/gcd_4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95feb8c-3449-4fe2-a97f-3d7947a304a7/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95feb8c-3449-4fe2-a97f-3d7947a304a7/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95feb8c-3449-4fe2-a97f-3d7947a304a7/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95feb8c-3449-4fe2-a97f-3d7947a304a7/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95feb8c-3449-4fe2-a97f-3d7947a304a7/bin/ukojak-LBtLqBUTdQ/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95feb8c-3449-4fe2-a97f-3d7947a304a7/bin/ukojak-LBtLqBUTdQ --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 679f2fe8d678884423b2dff47bf2c3c7ede0374b3a8bb68f9a9e8a332d8776ef --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:53:32,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:53:32,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:53:32,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:53:32,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:53:32,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:53:32,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:53:32,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:53:32,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:53:32,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:53:32,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:53:32,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:53:32,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:53:32,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:53:32,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:53:32,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:53:32,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:53:32,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:53:32,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:53:32,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:53:32,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:53:32,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:53:32,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:53:32,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:53:32,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:53:32,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:53:32,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:53:32,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:53:32,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:53:32,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:53:32,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:53:32,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:53:32,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:53:32,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:53:32,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:53:32,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:53:32,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:53:32,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:53:32,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:53:32,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:53:32,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:53:32,746 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95feb8c-3449-4fe2-a97f-3d7947a304a7/bin/ukojak-LBtLqBUTdQ/config/svcomp-Overflow-32bit-Kojak_Default.epf [2021-11-23 00:53:32,793 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:53:32,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:53:32,795 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:53:32,795 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:53:32,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:53:32,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:53:32,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:53:32,796 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:53:32,797 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 00:53:32,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:53:32,798 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:53:32,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:53:32,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:53:32,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:53:32,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:53:32,805 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 00:53:32,806 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:53:32,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:53:32,806 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:53:32,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:53:32,807 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:53:32,807 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:53:32,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:53:32,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:53:32,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:53:32,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:53:32,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:53:32,808 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:53:32,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:53:32,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:53:32,810 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_f95feb8c-3449-4fe2-a97f-3d7947a304a7/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95feb8c-3449-4fe2-a97f-3d7947a304a7/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 679f2fe8d678884423b2dff47bf2c3c7ede0374b3a8bb68f9a9e8a332d8776ef [2021-11-23 00:53:33,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:53:33,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:53:33,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:53:33,133 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:53:33,134 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:53:33,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95feb8c-3449-4fe2-a97f-3d7947a304a7/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/bitvector/gcd_4.c [2021-11-23 00:53:33,210 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95feb8c-3449-4fe2-a97f-3d7947a304a7/bin/ukojak-LBtLqBUTdQ/data/0e0104a68/ccb19193883242f99a9a6612bf86a05a/FLAG9d9e5fd50 [2021-11-23 00:53:33,683 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:53:33,683 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95feb8c-3449-4fe2-a97f-3d7947a304a7/sv-benchmarks/c/bitvector/gcd_4.c [2021-11-23 00:53:33,691 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95feb8c-3449-4fe2-a97f-3d7947a304a7/bin/ukojak-LBtLqBUTdQ/data/0e0104a68/ccb19193883242f99a9a6612bf86a05a/FLAG9d9e5fd50 [2021-11-23 00:53:34,068 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95feb8c-3449-4fe2-a97f-3d7947a304a7/bin/ukojak-LBtLqBUTdQ/data/0e0104a68/ccb19193883242f99a9a6612bf86a05a [2021-11-23 00:53:34,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:53:34,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:53:34,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:53:34,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:53:34,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:53:34,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:53:34" (1/1) ... [2021-11-23 00:53:34,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1edb024a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:34, skipping insertion in model container [2021-11-23 00:53:34,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:53:34" (1/1) ... [2021-11-23 00:53:34,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:53:34,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:53:34,235 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95feb8c-3449-4fe2-a97f-3d7947a304a7/sv-benchmarks/c/bitvector/gcd_4.c[662,675] [2021-11-23 00:53:34,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:53:34,256 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:53:34,269 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95feb8c-3449-4fe2-a97f-3d7947a304a7/sv-benchmarks/c/bitvector/gcd_4.c[662,675] [2021-11-23 00:53:34,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:53:34,288 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:53:34,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:34 WrapperNode [2021-11-23 00:53:34,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:53:34,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:53:34,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:53:34,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:53:34,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:34" (1/1) ... [2021-11-23 00:53:34,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:34" (1/1) ... [2021-11-23 00:53:34,324 INFO L137 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2021-11-23 00:53:34,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:53:34,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:53:34,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:53:34,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:53:34,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:34" (1/1) ... [2021-11-23 00:53:34,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:34" (1/1) ... [2021-11-23 00:53:34,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:34" (1/1) ... [2021-11-23 00:53:34,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:34" (1/1) ... [2021-11-23 00:53:34,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:34" (1/1) ... [2021-11-23 00:53:34,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:34" (1/1) ... [2021-11-23 00:53:34,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:34" (1/1) ... [2021-11-23 00:53:34,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:53:34,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:53:34,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:53:34,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:53:34,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:34" (1/1) ... [2021-11-23 00:53:34,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:53:34,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95feb8c-3449-4fe2-a97f-3d7947a304a7/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:53:34,388 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95feb8c-3449-4fe2-a97f-3d7947a304a7/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:53:34,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95feb8c-3449-4fe2-a97f-3d7947a304a7/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:53:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:53:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:53:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:53:34,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:53:34,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 00:53:34,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 00:53:34,497 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:53:34,498 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:53:34,676 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:53:34,696 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:53:34,697 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:53:34,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:53:34 BoogieIcfgContainer [2021-11-23 00:53:34,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:53:34,701 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:53:34,701 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:53:34,711 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:53:34,712 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:53:34" (1/1) ... [2021-11-23 00:53:34,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:53:34,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:34,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2021-11-23 00:53:34,838 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2021-11-23 00:53:34,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 00:53:34,840 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:34,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:35,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:35,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:35,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2021-11-23 00:53:35,061 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2021-11-23 00:53:35,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 00:53:35,061 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:35,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:35,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:35,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:35,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2021-11-23 00:53:35,161 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2021-11-23 00:53:35,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:53:35,165 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:35,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:35,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:35,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:35,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 25 states and 32 transitions. [2021-11-23 00:53:35,366 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2021-11-23 00:53:35,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:53:35,367 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:35,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:35,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:35,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:35,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 28 states and 38 transitions. [2021-11-23 00:53:35,797 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2021-11-23 00:53:35,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 00:53:35,798 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:35,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:35,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:35,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:35,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2021-11-23 00:53:35,969 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2021-11-23 00:53:35,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 00:53:35,970 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:35,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:36,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:36,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:36,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2021-11-23 00:53:36,070 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2021-11-23 00:53:36,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 00:53:36,071 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:36,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:36,174 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:36,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:36,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 30 states and 46 transitions. [2021-11-23 00:53:36,573 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2021-11-23 00:53:36,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 00:53:36,574 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:36,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:36,658 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:37,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:37,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 37 states and 61 transitions. [2021-11-23 00:53:37,218 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 61 transitions. [2021-11-23 00:53:37,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 00:53:37,219 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:37,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:37,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:37,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:37,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 39 states and 64 transitions. [2021-11-23 00:53:37,526 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 64 transitions. [2021-11-23 00:53:37,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 00:53:37,527 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:37,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:37,644 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:38,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:38,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 41 states and 67 transitions. [2021-11-23 00:53:38,026 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 67 transitions. [2021-11-23 00:53:38,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 00:53:38,027 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:38,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:38,133 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:39,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:39,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 50 states and 85 transitions. [2021-11-23 00:53:39,047 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 85 transitions. [2021-11-23 00:53:39,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 00:53:39,049 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:39,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:39,181 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:39,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:39,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 56 states and 100 transitions. [2021-11-23 00:53:39,935 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 100 transitions. [2021-11-23 00:53:39,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 00:53:39,936 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:39,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:40,044 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:40,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:40,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 60 states and 111 transitions. [2021-11-23 00:53:40,754 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 111 transitions. [2021-11-23 00:53:40,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 00:53:40,755 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:40,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:40,780 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:40,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:40,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 61 states and 113 transitions. [2021-11-23 00:53:40,950 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 113 transitions. [2021-11-23 00:53:40,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 00:53:40,951 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:40,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:40,971 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:41,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:41,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 63 states and 118 transitions. [2021-11-23 00:53:41,198 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 118 transitions. [2021-11-23 00:53:41,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 00:53:41,199 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:41,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:41,406 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:41,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:41,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 65 states and 122 transitions. [2021-11-23 00:53:41,852 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 122 transitions. [2021-11-23 00:53:41,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 00:53:41,853 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:41,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:42,060 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:43,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:43,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 71 states and 134 transitions. [2021-11-23 00:53:43,235 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 134 transitions. [2021-11-23 00:53:43,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 00:53:43,255 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:43,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:43,304 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:43,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:43,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 75 states and 143 transitions. [2021-11-23 00:53:43,703 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 143 transitions. [2021-11-23 00:53:43,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 00:53:43,704 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:43,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:43,743 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:43,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:43,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 77 states and 148 transitions. [2021-11-23 00:53:43,990 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 148 transitions. [2021-11-23 00:53:43,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 00:53:43,994 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:43,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:44,329 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:46,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:46,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 89 states and 177 transitions. [2021-11-23 00:53:46,410 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 177 transitions. [2021-11-23 00:53:46,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 00:53:46,411 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:46,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:46,440 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:47,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:47,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 94 states and 184 transitions. [2021-11-23 00:53:47,402 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 184 transitions. [2021-11-23 00:53:47,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 00:53:47,402 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:47,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:47,432 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 00:53:48,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:48,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 98 states and 189 transitions. [2021-11-23 00:53:48,082 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 189 transitions. [2021-11-23 00:53:48,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 00:53:48,082 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:48,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:48,328 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 00:53:49,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:49,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 102 states and 197 transitions. [2021-11-23 00:53:49,053 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 197 transitions. [2021-11-23 00:53:49,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 00:53:49,054 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:49,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:49,079 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 31 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 00:53:49,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:49,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 106 states and 204 transitions. [2021-11-23 00:53:49,614 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 204 transitions. [2021-11-23 00:53:49,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 00:53:49,615 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:49,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:49,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:49,970 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 17 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:50,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:50,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 110 states and 216 transitions. [2021-11-23 00:53:50,975 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 216 transitions. [2021-11-23 00:53:50,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 00:53:50,976 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:50,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:51,459 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:52,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:52,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 114 states and 228 transitions. [2021-11-23 00:53:52,717 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 228 transitions. [2021-11-23 00:53:52,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 00:53:52,718 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:52,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:53,184 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:54,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:54,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 120 states and 240 transitions. [2021-11-23 00:53:54,626 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 240 transitions. [2021-11-23 00:53:54,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 00:53:54,627 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:54,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:54,653 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:54,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:54,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 122 states and 243 transitions. [2021-11-23 00:53:54,962 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 243 transitions. [2021-11-23 00:53:54,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 00:53:54,963 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:54,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:55,326 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 24 proven. 42 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 00:53:56,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:56,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 124 states and 249 transitions. [2021-11-23 00:53:56,003 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 249 transitions. [2021-11-23 00:53:56,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 00:53:56,004 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:56,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:56,127 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 00:53:57,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:57,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 129 states and 258 transitions. [2021-11-23 00:53:57,146 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 258 transitions. [2021-11-23 00:53:57,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 00:53:57,147 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:57,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:57,172 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 00:53:57,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:57,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 133 states and 265 transitions. [2021-11-23 00:53:57,958 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 265 transitions. [2021-11-23 00:53:57,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 00:53:57,959 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:57,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:57,986 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 18 proven. 38 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 00:53:58,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:58,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 135 states and 268 transitions. [2021-11-23 00:53:58,388 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 268 transitions. [2021-11-23 00:53:58,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 00:53:58,390 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:58,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:58,542 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-23 00:53:59,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:59,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 137 states and 273 transitions. [2021-11-23 00:53:59,140 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 273 transitions. [2021-11-23 00:53:59,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 00:53:59,141 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:59,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:59,181 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-23 00:53:59,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:59,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 139 states and 276 transitions. [2021-11-23 00:53:59,562 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 276 transitions. [2021-11-23 00:53:59,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 00:53:59,562 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:59,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:59,589 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 34 proven. 38 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 00:53:59,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:59,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 141 states and 277 transitions. [2021-11-23 00:53:59,871 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 277 transitions. [2021-11-23 00:53:59,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 00:53:59,872 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:59,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:00,788 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:54:02,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:02,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 145 states and 284 transitions. [2021-11-23 00:54:02,533 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 284 transitions. [2021-11-23 00:54:02,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 00:54:02,534 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:02,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:02,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:03,163 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 40 proven. 56 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:54:04,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:04,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 147 states and 288 transitions. [2021-11-23 00:54:04,064 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 288 transitions. [2021-11-23 00:54:04,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 00:54:04,065 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:54:04,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:54:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:54:05,123 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 7 proven. 117 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 00:54:08,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:54:08,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 33 states and 34 transitions. [2021-11-23 00:54:08,394 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2021-11-23 00:54:08,394 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 00:54:08,395 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 39 iterations. [2021-11-23 00:54:08,403 INFO L754 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2021-11-23 00:54:08,514 INFO L560 CodeCheckObserver]: Invariant with dag size 43 [2021-11-23 00:54:08,526 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 00:54:08,527 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 00:54:08,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:54:08 ImpRootNode [2021-11-23 00:54:08,527 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:54:08,528 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:54:08,528 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:54:08,528 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:54:08,529 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:53:34" (3/4) ... [2021-11-23 00:54:08,531 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 00:54:08,536 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-23 00:54:08,540 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-11-23 00:54:08,541 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-23 00:54:08,541 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 00:54:08,541 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 00:54:08,646 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95feb8c-3449-4fe2-a97f-3d7947a304a7/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:54:08,647 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:54:08,648 INFO L158 Benchmark]: Toolchain (without parser) took 34574.53ms. Allocated memory was 88.1MB in the beginning and 360.7MB in the end (delta: 272.6MB). Free memory was 49.0MB in the beginning and 305.0MB in the end (delta: -256.0MB). Peak memory consumption was 181.4MB. Max. memory is 16.1GB. [2021-11-23 00:54:08,648 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory is still 65.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:54:08,649 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.52ms. Allocated memory was 88.1MB in the beginning and 117.4MB in the end (delta: 29.4MB). Free memory was 48.8MB in the beginning and 91.3MB in the end (delta: -42.5MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2021-11-23 00:54:08,649 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.41ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 89.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:54:08,653 INFO L158 Benchmark]: Boogie Preprocessor took 22.10ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 88.4MB in the end (delta: 774.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:54:08,654 INFO L158 Benchmark]: RCFGBuilder took 351.14ms. Allocated memory is still 117.4MB. Free memory was 88.4MB in the beginning and 77.3MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 00:54:08,654 INFO L158 Benchmark]: CodeCheck took 33826.93ms. Allocated memory was 117.4MB in the beginning and 299.9MB in the end (delta: 182.5MB). Free memory was 77.3MB in the beginning and 87.0MB in the end (delta: -9.7MB). Peak memory consumption was 172.9MB. Max. memory is 16.1GB. [2021-11-23 00:54:08,655 INFO L158 Benchmark]: Witness Printer took 118.91ms. Allocated memory was 299.9MB in the beginning and 360.7MB in the end (delta: 60.8MB). Free memory was 87.0MB in the beginning and 305.0MB in the end (delta: -218.0MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2021-11-23 00:54:08,666 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 30 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 33.7s, OverallIterations: 39, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6873 SdHoareTripleChecker+Valid, 31.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6337 mSDsluCounter, 150 SdHoareTripleChecker+Invalid, 25.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 3942 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25513 IncrementalHoareTripleChecker+Invalid, 29455 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3942 mSolverCounterUnsat, 76 mSDtfsCounter, 25513 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8551 GetRequests, 7502 SyntacticMatches, 557 SemanticMatches, 492 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145074 ImplicationChecksByTransitivity, 29.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 813 NumberOfCodeBlocks, 813 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 775 ConstructedInterpolants, 0 QuantifiedInterpolants, 4611 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 38 InterpolantComputations, 7 PerfectInterpolantSequences, 301/1271 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((((((63 <= a && 18 <= b) && a <= 63) && b <= 18) || ((b + 9 <= 2 * a && a + 9 <= 2 * b) && a <= 9)) || ((b + a <= 63 && 2 * b + 9 <= a) && a + 9 <= 3 * b)) || ((b + 9 <= 3 * a && a + 9 <= b) && 3 * b + a <= 63)) || ((a <= 3 * b + 9 && b <= 0) && 2 * b + 9 <= a)) || ((a + 2 * b <= 63 && b + 9 <= a) && a + 9 <= 2 * b) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory is still 65.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 214.52ms. Allocated memory was 88.1MB in the beginning and 117.4MB in the end (delta: 29.4MB). Free memory was 48.8MB in the beginning and 91.3MB in the end (delta: -42.5MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.41ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 89.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.10ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 88.4MB in the end (delta: 774.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 351.14ms. Allocated memory is still 117.4MB. Free memory was 88.4MB in the beginning and 77.3MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 33826.93ms. Allocated memory was 117.4MB in the beginning and 299.9MB in the end (delta: 182.5MB). Free memory was 77.3MB in the beginning and 87.0MB in the end (delta: -9.7MB). Peak memory consumption was 172.9MB. Max. memory is 16.1GB. * Witness Printer took 118.91ms. Allocated memory was 299.9MB in the beginning and 360.7MB in the end (delta: 60.8MB). Free memory was 87.0MB in the beginning and 305.0MB in the end (delta: -218.0MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 00:54:08,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95feb8c-3449-4fe2-a97f-3d7947a304a7/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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