./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 40c004ecbeb3948e318f4c5fc8011bd289b059bb9dbb2959c45853a9680cf20f ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:51:41,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:51:41,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:51:41,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:51:41,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:51:41,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:51:41,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:51:41,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:51:41,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:51:41,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:51:41,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:51:41,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:51:41,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:51:41,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:51:41,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:51:41,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:51:41,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:51:41,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:51:41,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:51:41,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:51:41,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:51:41,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:51:41,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:51:41,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:51:41,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:51:41,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:51:41,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:51:41,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:51:41,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:51:41,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:51:41,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:51:41,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:51:41,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:51:41,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:51:41,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:51:41,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:51:41,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:51:41,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:51:41,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:51:41,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:51:41,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:51:41,909 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:51:41,945 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:51:41,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:51:41,948 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:51:41,949 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:51:41,949 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:51:41,949 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:51:41,949 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:51:41,950 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:51:41,950 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:51:41,950 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:51:41,959 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:51:41,959 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:51:41,960 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:51:41,960 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:51:41,960 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:51:41,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:51:41,962 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:51:41,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:51:41,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:51:41,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:51:41,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:51:41,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:51:41,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:51:41,964 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:51:41,964 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:51:41,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:51:41,964 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:51:41,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:51:41,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:51:41,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:51:41,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:51:41,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:51:41,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:51:41,969 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:51:41,969 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:51:41,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:51:41,970 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:51:41,970 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:51:41,970 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:51:41,970 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40c004ecbeb3948e318f4c5fc8011bd289b059bb9dbb2959c45853a9680cf20f [2021-10-29 04:51:42,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:51:42,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:51:42,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:51:42,340 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:51:42,341 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:51:42,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound1.c [2021-10-29 04:51:42,422 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/data/7cf7222e9/fdc96c7fcf9a448d8d6315d1628201a1/FLAG9a01621f5 [2021-10-29 04:51:42,973 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:51:42,974 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound1.c [2021-10-29 04:51:42,982 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/data/7cf7222e9/fdc96c7fcf9a448d8d6315d1628201a1/FLAG9a01621f5 [2021-10-29 04:51:43,324 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/data/7cf7222e9/fdc96c7fcf9a448d8d6315d1628201a1 [2021-10-29 04:51:43,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:51:43,330 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:51:43,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:51:43,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:51:43,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:51:43,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:51:43" (1/1) ... [2021-10-29 04:51:43,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78da186f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:43, skipping insertion in model container [2021-10-29 04:51:43,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:51:43" (1/1) ... [2021-10-29 04:51:43,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:51:43,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:51:43,615 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_27ad07a4-239e-427f-8edd-549ebb261ee5/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound1.c[490,503] [2021-10-29 04:51:43,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:51:43,655 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:51:43,672 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_27ad07a4-239e-427f-8edd-549ebb261ee5/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound1.c[490,503] [2021-10-29 04:51:43,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:51:43,705 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:51:43,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:43 WrapperNode [2021-10-29 04:51:43,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:51:43,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:51:43,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:51:43,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:51:43,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:43" (1/1) ... [2021-10-29 04:51:43,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:43" (1/1) ... [2021-10-29 04:51:43,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:51:43,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:51:43,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:51:43,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:51:43,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:43" (1/1) ... [2021-10-29 04:51:43,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:43" (1/1) ... [2021-10-29 04:51:43,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:43" (1/1) ... [2021-10-29 04:51:43,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:43" (1/1) ... [2021-10-29 04:51:43,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:43" (1/1) ... [2021-10-29 04:51:43,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:43" (1/1) ... [2021-10-29 04:51:43,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:43" (1/1) ... [2021-10-29 04:51:43,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:51:43,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:51:43,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:51:43,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:51:43,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:43" (1/1) ... [2021-10-29 04:51:43,851 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:51:43,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:51:43,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:51:43,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:51:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:51:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:51:43,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:51:43,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:51:44,587 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:51:44,587 INFO L299 CfgBuilder]: Removed 25 assume(true) statements. [2021-10-29 04:51:44,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:51:44 BoogieIcfgContainer [2021-10-29 04:51:44,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:51:44,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:51:44,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:51:44,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:51:44,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:51:43" (1/3) ... [2021-10-29 04:51:44,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121496e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:51:44, skipping insertion in model container [2021-10-29 04:51:44,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:43" (2/3) ... [2021-10-29 04:51:44,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121496e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:51:44, skipping insertion in model container [2021-10-29 04:51:44,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:51:44" (3/3) ... [2021-10-29 04:51:44,602 INFO L111 eAbstractionObserver]: Analyzing ICFG egcd3-ll_valuebound1.c [2021-10-29 04:51:44,608 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:51:44,625 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-10-29 04:51:44,700 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:51:44,714 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 04:51:44,715 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-29 04:51:44,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:44,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:51:44,764 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:44,766 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 04:51:44,767 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-29 04:51:44,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:44,776 INFO L85 PathProgramCache]: Analyzing trace with hash 180063849, now seen corresponding path program 1 times [2021-10-29 04:51:44,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:51:44,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235409239] [2021-10-29 04:51:44,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:44,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:51:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:45,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:45,065 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:51:45,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235409239] [2021-10-29 04:51:45,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235409239] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:51:45,067 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:51:45,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:51:45,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51964923] [2021-10-29 04:51:45,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:51:45,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:51:45,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:51:45,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:51:45,116 INFO L87 Difference]: Start difference. First operand has 30 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:45,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:45,138 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2021-10-29 04:51:45,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:51:45,140 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-29 04:51:45,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:45,151 INFO L225 Difference]: With dead ends: 59 [2021-10-29 04:51:45,151 INFO L226 Difference]: Without dead ends: 28 [2021-10-29 04:51:45,155 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:51:45,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-29 04:51:45,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-29 04:51:45,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:45,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2021-10-29 04:51:45,197 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 5 [2021-10-29 04:51:45,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:45,197 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2021-10-29 04:51:45,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:45,198 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2021-10-29 04:51:45,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 04:51:45,199 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:45,199 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 04:51:45,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 04:51:45,200 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-29 04:51:45,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:45,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1181966144, now seen corresponding path program 1 times [2021-10-29 04:51:45,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:51:45,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879245053] [2021-10-29 04:51:45,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:45,203 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:51:45,229 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 04:51:45,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1122365251] [2021-10-29 04:51:45,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:45,231 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:51:45,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:51:45,233 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:51:45,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 04:51:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:45,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 04:51:45,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:45,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:45,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:45,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:45,462 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:51:45,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879245053] [2021-10-29 04:51:45,463 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:51:45,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122365251] [2021-10-29 04:51:45,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122365251] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:51:45,463 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:51:45,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 04:51:45,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619717537] [2021-10-29 04:51:45,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:51:45,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:51:45,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:51:45,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:51:45,468 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:45,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:45,524 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2021-10-29 04:51:45,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:51:45,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-29 04:51:45,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:45,527 INFO L225 Difference]: With dead ends: 55 [2021-10-29 04:51:45,529 INFO L226 Difference]: Without dead ends: 51 [2021-10-29 04:51:45,530 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:51:45,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-29 04:51:45,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 30. [2021-10-29 04:51:45,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.28) internal successors, (32), 29 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:45,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2021-10-29 04:51:45,548 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 6 [2021-10-29 04:51:45,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:45,550 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2021-10-29 04:51:45,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:45,551 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2021-10-29 04:51:45,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 04:51:45,553 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:45,553 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:51:45,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:51:45,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:51:45,768 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-29 04:51:45,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:45,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1984810813, now seen corresponding path program 1 times [2021-10-29 04:51:45,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:51:45,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475990794] [2021-10-29 04:51:45,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:45,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:51:45,828 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 04:51:45,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1197986938] [2021-10-29 04:51:45,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:45,829 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:51:45,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:51:45,831 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:51:45,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-29 04:51:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:45,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 04:51:45,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:46,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:46,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:46,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:46,561 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:51:46,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475990794] [2021-10-29 04:51:46,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:51:46,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197986938] [2021-10-29 04:51:46,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197986938] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:51:46,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:51:46,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 04:51:46,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941896946] [2021-10-29 04:51:46,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 04:51:46,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:51:46,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 04:51:46,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:51:46,574 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:46,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:46,753 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2021-10-29 04:51:46,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:51:46,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-29 04:51:46,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:46,759 INFO L225 Difference]: With dead ends: 51 [2021-10-29 04:51:46,759 INFO L226 Difference]: Without dead ends: 49 [2021-10-29 04:51:46,762 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-29 04:51:46,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-29 04:51:46,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 42. [2021-10-29 04:51:46,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 41 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:46,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2021-10-29 04:51:46,787 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 8 [2021-10-29 04:51:46,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:46,787 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2021-10-29 04:51:46,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:46,788 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2021-10-29 04:51:46,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:51:46,791 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:46,791 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:51:46,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-29 04:51:47,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:51:47,007 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-29 04:51:47,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:47,008 INFO L85 PathProgramCache]: Analyzing trace with hash 437869184, now seen corresponding path program 1 times [2021-10-29 04:51:47,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:51:47,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499814107] [2021-10-29 04:51:47,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:47,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:51:47,038 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 04:51:47,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1872510973] [2021-10-29 04:51:47,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:47,039 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:51:47,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:51:47,040 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:51:47,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-29 04:51:47,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:47,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:51:47,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:47,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:47,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:47,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:47,772 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:51:47,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499814107] [2021-10-29 04:51:47,773 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:51:47,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872510973] [2021-10-29 04:51:47,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872510973] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:51:47,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:51:47,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 04:51:47,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49979908] [2021-10-29 04:51:47,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 04:51:47,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:51:47,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 04:51:47,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:51:47,777 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:47,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:47,888 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2021-10-29 04:51:47,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:51:47,889 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-29 04:51:47,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:47,892 INFO L225 Difference]: With dead ends: 49 [2021-10-29 04:51:47,892 INFO L226 Difference]: Without dead ends: 47 [2021-10-29 04:51:47,893 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:51:47,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-29 04:51:47,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 42. [2021-10-29 04:51:47,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 41 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:47,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2021-10-29 04:51:47,908 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 10 [2021-10-29 04:51:47,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:47,908 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2021-10-29 04:51:47,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:47,909 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2021-10-29 04:51:47,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 04:51:47,910 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:47,910 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:51:47,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-29 04:51:48,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:51:48,139 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-29 04:51:48,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:48,140 INFO L85 PathProgramCache]: Analyzing trace with hash 482994473, now seen corresponding path program 1 times [2021-10-29 04:51:48,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:51:48,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782511014] [2021-10-29 04:51:48,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:48,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:51:48,167 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 04:51:48,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [682820180] [2021-10-29 04:51:48,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:48,168 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:51:48,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:51:48,170 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:51:48,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-29 04:51:48,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:48,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 04:51:48,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:48,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:48,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:48,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:48,419 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:51:48,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782511014] [2021-10-29 04:51:48,420 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:51:48,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682820180] [2021-10-29 04:51:48,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682820180] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:51:48,421 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:51:48,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-29 04:51:48,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600433316] [2021-10-29 04:51:48,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 04:51:48,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:51:48,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 04:51:48,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 04:51:48,424 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:48,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:48,523 INFO L93 Difference]: Finished difference Result 90 states and 98 transitions. [2021-10-29 04:51:48,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:51:48,524 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-29 04:51:48,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:48,526 INFO L225 Difference]: With dead ends: 90 [2021-10-29 04:51:48,526 INFO L226 Difference]: Without dead ends: 63 [2021-10-29 04:51:48,527 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:51:48,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-10-29 04:51:48,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 44. [2021-10-29 04:51:48,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 43 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:48,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2021-10-29 04:51:48,537 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 11 [2021-10-29 04:51:48,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:48,537 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2021-10-29 04:51:48,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:48,538 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2021-10-29 04:51:48,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:51:48,539 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:48,539 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:51:48,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-29 04:51:48,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:51:48,759 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-29 04:51:48,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:48,759 INFO L85 PathProgramCache]: Analyzing trace with hash -114351517, now seen corresponding path program 1 times [2021-10-29 04:51:48,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:51:48,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683291574] [2021-10-29 04:51:48,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:48,760 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:51:48,781 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 04:51:48,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1051663957] [2021-10-29 04:51:48,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:48,783 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:51:48,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:51:48,807 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:51:48,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-29 04:51:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:48,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 04:51:48,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:49,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:49,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:49,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:49,201 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:51:49,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683291574] [2021-10-29 04:51:49,202 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:51:49,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051663957] [2021-10-29 04:51:49,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051663957] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:51:49,202 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:51:49,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 04:51:49,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904623190] [2021-10-29 04:51:49,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 04:51:49,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:51:49,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 04:51:49,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 04:51:49,208 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:49,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:49,329 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2021-10-29 04:51:49,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 04:51:49,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 04:51:49,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:49,336 INFO L225 Difference]: With dead ends: 82 [2021-10-29 04:51:49,337 INFO L226 Difference]: Without dead ends: 80 [2021-10-29 04:51:49,337 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:51:49,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-29 04:51:49,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 64. [2021-10-29 04:51:49,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 59 states have (on average 1.305084745762712) internal successors, (77), 63 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:49,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 77 transitions. [2021-10-29 04:51:49,391 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 77 transitions. Word has length 12 [2021-10-29 04:51:49,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:49,391 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 77 transitions. [2021-10-29 04:51:49,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:49,392 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 77 transitions. [2021-10-29 04:51:49,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 04:51:49,393 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:49,394 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:51:49,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-29 04:51:49,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-29 04:51:49,623 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-29 04:51:49,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:49,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1777499878, now seen corresponding path program 1 times [2021-10-29 04:51:49,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:51:49,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360081154] [2021-10-29 04:51:49,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:49,625 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:51:49,659 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 04:51:49,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [270270460] [2021-10-29 04:51:49,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:49,664 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:51:49,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:51:49,665 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:51:49,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-29 04:51:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:49,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:51:49,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:50,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:50,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:50,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:50,158 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:51:50,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360081154] [2021-10-29 04:51:50,158 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:51:50,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270270460] [2021-10-29 04:51:50,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270270460] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:51:50,159 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:51:50,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2021-10-29 04:51:50,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164042445] [2021-10-29 04:51:50,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 04:51:50,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:51:50,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 04:51:50,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:51:50,162 INFO L87 Difference]: Start difference. First operand 64 states and 77 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:50,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:50,574 INFO L93 Difference]: Finished difference Result 92 states and 109 transitions. [2021-10-29 04:51:50,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-29 04:51:50,580 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-29 04:51:50,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:50,582 INFO L225 Difference]: With dead ends: 92 [2021-10-29 04:51:50,582 INFO L226 Difference]: Without dead ends: 90 [2021-10-29 04:51:50,583 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-10-29 04:51:50,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-10-29 04:51:50,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 62. [2021-10-29 04:51:50,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 58 states have (on average 1.2413793103448276) internal successors, (72), 61 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:50,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2021-10-29 04:51:50,598 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 14 [2021-10-29 04:51:50,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:50,599 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2021-10-29 04:51:50,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:50,599 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2021-10-29 04:51:50,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-29 04:51:50,600 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:50,601 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:51:50,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-29 04:51:50,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:51:50,823 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-29 04:51:50,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:50,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1532792300, now seen corresponding path program 1 times [2021-10-29 04:51:50,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:51:50,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311862532] [2021-10-29 04:51:50,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:50,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:51:50,848 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 04:51:50,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [232698645] [2021-10-29 04:51:50,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:50,853 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:51:50,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:51:50,854 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:51:50,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-29 04:51:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:51,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-29 04:51:51,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:53,263 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:53,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:54,610 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:54,611 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:51:54,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311862532] [2021-10-29 04:51:54,611 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:51:54,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232698645] [2021-10-29 04:51:54,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232698645] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:51:54,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [560025555] [2021-10-29 04:51:54,643 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2021-10-29 04:51:54,644 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 04:51:54,653 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 04:51:54,660 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 04:51:54,660 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 04:51:54,754 INFO L180 QuantifierPusher]: treesize reduction 19, result has 89.9 percent of original size [2021-10-29 04:51:54,756 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:51:54,757 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:54,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 04:51:54,761 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:51:54,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:54,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-29 04:51:54,766 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-10-29 04:51:54,803 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_17|], 21=[|v_#valid_18|]} [2021-10-29 04:51:54,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:51:54,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:51:54,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:51:54,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-29 04:51:54,851 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:54,852 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:51:54,853 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:54,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:51:54,854 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:51:54,877 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-29 04:51:54,878 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:54,879 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 04:51:54,880 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:54,880 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 04:51:54,880 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 04:51:54,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:54,916 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:54,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:51:54,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:51:54,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:51:54,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:51:54,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:51:54,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:51:54,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:51:54,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:51:54,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:51:54,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-29 04:51:55,001 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,004 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 04:51:55,005 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,006 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 04:51:55,008 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-29 04:51:55,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,031 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,037 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-10-29 04:51:55,041 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-10-29 04:51:55,043 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 04:51:55,043 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:320, output treesize:131 [2021-10-29 04:51:55,053 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,063 INFO L185 QuantifierPusher]: treesize reduction 7, result has 95.5 percent of original size 147 [2021-10-29 04:51:55,086 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-10-29 04:51:55,114 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 195 [2021-10-29 04:51:55,150 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 198 [2021-10-29 04:51:55,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 220 [2021-10-29 04:51:55,193 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,204 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 236 [2021-10-29 04:51:55,212 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,222 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-10-29 04:51:55,235 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,247 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-10-29 04:51:55,259 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,268 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 250 [2021-10-29 04:51:55,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,339 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,379 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,409 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,419 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-10-29 04:51:55,427 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,437 INFO L185 QuantifierPusher]: treesize reduction 36, result has 79.2 percent of original size 137 [2021-10-29 04:51:55,456 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-10-29 04:51:55,481 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,488 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 195 [2021-10-29 04:51:55,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,512 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 198 [2021-10-29 04:51:55,529 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-10-29 04:51:55,552 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 198 [2021-10-29 04:51:55,585 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,591 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-10-29 04:51:55,600 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 216 [2021-10-29 04:51:55,620 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,657 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,780 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,870 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:55,882 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 318 [2021-10-29 04:51:55,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,948 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,949 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,951 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:55,996 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:56,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:56,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:56,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:56,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:56,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:56,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:56,120 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:56,121 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:56,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:56,152 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:56,199 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:56,207 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 271 [2021-10-29 04:51:56,220 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:51:56,229 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 362 [2021-10-29 04:51:56,243 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 04:52:00,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [560025555] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:52:00,042 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-29 04:52:00,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10, 10] total 24 [2021-10-29 04:52:00,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980062564] [2021-10-29 04:52:00,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 04:52:00,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:52:00,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 04:52:00,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2021-10-29 04:52:00,045 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:52:00,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:52:00,211 INFO L93 Difference]: Finished difference Result 79 states and 92 transitions. [2021-10-29 04:52:00,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 04:52:00,213 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-29 04:52:00,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:52:00,214 INFO L225 Difference]: With dead ends: 79 [2021-10-29 04:52:00,214 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 04:52:00,215 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 34 SyntacticMatches, 10 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2021-10-29 04:52:00,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 04:52:00,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 04:52:00,215 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) [2021-10-29 04:52:00,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 04:52:00,215 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2021-10-29 04:52:00,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:52:00,216 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 04:52:00,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:52:00,216 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 04:52:00,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:52:00,219 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:52:00,219 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:52:00,219 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:52:00,220 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:52:00,220 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:52:00,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-29 04:52:00,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:52:00,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 04:52:00,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:52:00,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:52:00,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:52:00,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:52:00,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:52:00,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:52:00,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:52:00,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:52:03,983 INFO L853 garLoopResultBuilder]: At program point L35-2(lines 35 73) the Hoare annotation is: (let ((.cse0 (<= 0 |#t~string4.base|)) (.cse1 (<= 1 ULTIMATE.start_main_~a~0)) (.cse2 (<= 1 ULTIMATE.start_assume_abort_if_not_~cond)) (.cse3 (<= ULTIMATE.start_main_~x~0 1)) (.cse4 (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)) (.cse5 (<= 0 |#t~string5.base|)) (.cse6 (= |#t~string5.offset| 0)) (.cse7 (<= 1 ULTIMATE.start_main_~y~0)) (.cse8 (<= 0 |#t~string6.base|)) (.cse9 (= |#NULL.offset| 0)) (.cse10 (<= 1 ULTIMATE.start_main_~x~0)) (.cse11 (= |#t~string6.offset| 0)) (.cse13 (<= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse14 (<= ULTIMATE.start_main_~a~0 1)) (.cse15 (<= 0 |#StackHeapBarrier|)) (.cse16 (<= ULTIMATE.start_main_~y~0 1)) (.cse17 (= 0 |#t~string4.offset|)) (.cse18 (= |#NULL.base| 0))) (or (let ((.cse12 (+ ULTIMATE.start_main_~s~0 1))) (and .cse0 .cse1 (<= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (= ULTIMATE.start_main_~b~0 0) .cse2 .cse3 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~temp~0 0) (<= ULTIMATE.start_main_~k~0 1) .cse4 (= ULTIMATE.start_main_~p~0 0) .cse5 .cse6 (<= ULTIMATE.start___VERIFIER_assert_~cond 1) (<= 0 ULTIMATE.start_main_~c~0) (<= 1 ULTIMATE.start_main_~k~0) .cse7 (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~cond|) (<= ULTIMATE.start_main_~c~0 0) .cse8 (<= ULTIMATE.start_main_~v~0 1) (= ULTIMATE.start_main_~d~0 1) (= ULTIMATE.start_main_~r~0 1) (<= 1 ULTIMATE.start_main_~v~0) (= ULTIMATE.start_main_~q~0 1) .cse9 .cse10 .cse11 (<= .cse12 0) .cse13 .cse14 (<= 0 .cse12) .cse15 .cse16 .cse17 .cse18)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (= ULTIMATE.start_main_~p~0 1) .cse7 (= ULTIMATE.start_main_~q~0 0) .cse8 (= ULTIMATE.start_main_~r~0 0) .cse9 (= ULTIMATE.start_main_~s~0 1) .cse10 .cse11 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)))) [2021-10-29 04:52:03,984 INFO L857 garLoopResultBuilder]: For program point L35-3(lines 35 73) no Hoare annotation was computed. [2021-10-29 04:52:03,984 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-10-29 04:52:03,984 INFO L857 garLoopResultBuilder]: For program point L11(lines 11 14) no Hoare annotation was computed. [2021-10-29 04:52:03,985 INFO L853 garLoopResultBuilder]: At program point L11-2(lines 10 16) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string4.base|))) (and (< |#StackHeapBarrier| |#t~string6.base|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~k~0 0) (<= ULTIMATE.start_main_~x~0 1) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~b~0) (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~c~0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (< |#StackHeapBarrier| |#t~string5.base|) (= (ite (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0) (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~x~0))) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond|) (= (select |#valid| |#t~string5.base|) 1) (= (select |#valid| |#t~string4.base|) 1) (= |#t~string5.offset| 0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0) (= (select |#length| |#t~string5.base|) 11) (= (select |#valid| |#t~string6.base|) 1) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0) (not (= ULTIMATE.start_main_~b~0 0)) (= (select |#valid| 0) 0) (= ULTIMATE.start_main_~r~0 0) (= ULTIMATE.start_main_~d~0 1) (< |#StackHeapBarrier| |#t~string4.base|) (= (select |#length| |#t~string6.base|) 12) (= (select .cse0 (+ 1 |#t~string4.offset|)) 0) (= |#NULL.offset| 0) (= ULTIMATE.start_main_~s~0 1) (= |#t~string6.offset| 0) (= (select |#length| |#t~string4.base|) 2) (= (select .cse0 |#t~string4.offset|) 48) (= 0 |#t~string4.offset|) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond))) [2021-10-29 04:52:03,985 INFO L857 garLoopResultBuilder]: For program point L11-3(lines 11 14) no Hoare annotation was computed. [2021-10-29 04:52:03,985 INFO L853 garLoopResultBuilder]: At program point L11-5(lines 10 16) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string4.base|))) (and (< |#StackHeapBarrier| |#t~string6.base|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~k~0 0) (<= ULTIMATE.start_main_~x~0 1) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~b~0) (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~c~0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (< |#StackHeapBarrier| |#t~string5.base|) (= (ite (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0) (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~x~0))) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond|) (= (select |#valid| |#t~string5.base|) 1) (= (select |#valid| |#t~string4.base|) 1) (= |#t~string5.offset| 0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0) (= (select |#length| |#t~string5.base|) 11) (= (select |#valid| |#t~string6.base|) 1) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0) (not (= ULTIMATE.start_main_~b~0 0)) (= (select |#valid| 0) 0) (= ULTIMATE.start_main_~r~0 0) (= ULTIMATE.start_main_~d~0 1) (< |#StackHeapBarrier| |#t~string4.base|) (= (select |#length| |#t~string6.base|) 12) (= (select .cse0 (+ 1 |#t~string4.offset|)) 0) (= |#NULL.offset| 0) (= ULTIMATE.start_main_~s~0 1) (= |#t~string6.offset| 0) (= (select |#length| |#t~string4.base|) 2) (= (select .cse0 |#t~string4.offset|) 48) (= 0 |#t~string4.offset|) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond))) [2021-10-29 04:52:03,985 INFO L857 garLoopResultBuilder]: For program point L11-6(lines 11 14) no Hoare annotation was computed. [2021-10-29 04:52:03,986 INFO L857 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-10-29 04:52:03,986 INFO L853 garLoopResultBuilder]: At program point L11-8(lines 10 16) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string4.base|))) (and (< |#StackHeapBarrier| |#t~string6.base|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~k~0 0) (<= ULTIMATE.start_main_~x~0 1) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (< |#StackHeapBarrier| |#t~string5.base|) (= (ite (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0) (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~x~0))) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond|) (= (select |#valid| |#t~string5.base|) 1) (= (select |#valid| |#t~string4.base|) 1) (= |#t~string5.offset| 0) (= ULTIMATE.start_main_~p~0 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0) (= (select |#length| |#t~string5.base|) 11) (= (select |#valid| |#t~string6.base|) 1) (<= 1 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0) (= (select |#valid| 0) 0) (= ULTIMATE.start_main_~r~0 0) (= ULTIMATE.start_main_~d~0 1) (< |#StackHeapBarrier| |#t~string4.base|) (= (select |#length| |#t~string6.base|) 12) (= (select .cse0 (+ 1 |#t~string4.offset|)) 0) (= |#NULL.offset| 0) (= ULTIMATE.start_main_~s~0 1) (<= 1 ULTIMATE.start_main_~x~0) (= |#t~string6.offset| 0) (= (select |#length| |#t~string4.base|) 2) (= (select .cse0 |#t~string4.offset|) 48) (<= ULTIMATE.start_main_~y~0 1) (= 0 |#t~string4.offset|) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond))) [2021-10-29 04:52:03,986 INFO L857 garLoopResultBuilder]: For program point L11-9(lines 11 14) no Hoare annotation was computed. [2021-10-29 04:52:03,987 INFO L853 garLoopResultBuilder]: At program point L11-11(lines 55 56) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string4.base|))) (and (< |#StackHeapBarrier| |#t~string6.base|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~k~0 0) (<= ULTIMATE.start_main_~x~0 1) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (< |#StackHeapBarrier| |#t~string5.base|) (= (ite (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0) (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~x~0))) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond|) (= (select |#valid| |#t~string5.base|) 1) (= (select |#valid| |#t~string4.base|) 1) (= |#t~string5.offset| 0) (= ULTIMATE.start_main_~p~0 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0) (= (select |#length| |#t~string5.base|) 11) (= (select |#valid| |#t~string6.base|) 1) (<= 1 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0) (= (select |#valid| 0) 0) (= ULTIMATE.start_main_~r~0 0) (= ULTIMATE.start_main_~d~0 1) (< |#StackHeapBarrier| |#t~string4.base|) (= (select |#length| |#t~string6.base|) 12) (= (select .cse0 (+ 1 |#t~string4.offset|)) 0) (= |#NULL.offset| 0) (= ULTIMATE.start_main_~s~0 1) (<= 1 ULTIMATE.start_main_~x~0) (= |#t~string6.offset| 0) (= (select |#length| |#t~string4.base|) 2) (= (select .cse0 |#t~string4.offset|) 48) (<= ULTIMATE.start_main_~y~0 1) (= 0 |#t~string4.offset|) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond))) [2021-10-29 04:52:03,987 INFO L857 garLoopResultBuilder]: For program point L11-12(lines 11 14) no Hoare annotation was computed. [2021-10-29 04:52:03,987 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-10-29 04:52:03,987 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 04:52:03,988 INFO L860 garLoopResultBuilder]: At program point L11-14(lines 10 16) the Hoare annotation is: true [2021-10-29 04:52:03,988 INFO L857 garLoopResultBuilder]: For program point L12(lines 12 13) no Hoare annotation was computed. [2021-10-29 04:52:03,988 INFO L857 garLoopResultBuilder]: For program point L12-1(lines 12 13) no Hoare annotation was computed. [2021-10-29 04:52:03,988 INFO L857 garLoopResultBuilder]: For program point L12-2(lines 12 13) no Hoare annotation was computed. [2021-10-29 04:52:03,989 INFO L857 garLoopResultBuilder]: For program point L12-3(lines 12 13) no Hoare annotation was computed. [2021-10-29 04:52:03,989 INFO L857 garLoopResultBuilder]: For program point L12-4(lines 12 13) no Hoare annotation was computed. [2021-10-29 04:52:03,989 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-10-29 04:52:03,989 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-10-29 04:52:03,990 INFO L853 garLoopResultBuilder]: At program point L49-2(lines 49 59) the Hoare annotation is: (and (<= 0 |#t~string4.base|) (= ULTIMATE.start_main_~k~0 0) (<= 1 ULTIMATE.start_assume_abort_if_not_~cond) (<= ULTIMATE.start_main_~x~0 1) (<= 0 ULTIMATE.start_main_~b~0) (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~c~0) (<= 0 |#t~string6.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (<= 0 |#t~string5.base|) (= ULTIMATE.start_main_~p~0 1) (<= |#NULL.offset| 0) (<= 0 |#t~string5.offset|) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0) (<= |#t~string6.offset| 0) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0) (<= 0 |#t~string6.base|) (not (= ULTIMATE.start_main_~b~0 0)) (= ULTIMATE.start_main_~r~0 0) (= ULTIMATE.start_main_~d~0 1) (<= 1 |ULTIMATE.start_assume_abort_if_not_#in~cond|) (= ULTIMATE.start_main_~s~0 1) (<= 1 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 0 |#NULL.offset|) (<= ULTIMATE.start_main_~a~0 1) (<= 0 |#StackHeapBarrier|) (<= |#t~string5.offset| 0) (= 0 |#t~string4.offset|) (= |#NULL.base| 0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) [2021-10-29 04:52:03,990 INFO L857 garLoopResultBuilder]: For program point L49-3(lines 49 59) no Hoare annotation was computed. [2021-10-29 04:52:03,990 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 04:52:03,990 INFO L853 garLoopResultBuilder]: At program point L42-2(lines 42 62) the Hoare annotation is: (let ((.cse0 (<= 0 |#t~string4.base|)) (.cse1 (<= 1 ULTIMATE.start_assume_abort_if_not_~cond)) (.cse2 (<= ULTIMATE.start_main_~x~0 1)) (.cse3 (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)) (.cse4 (<= 0 |#t~string5.base|)) (.cse5 (= |#t~string5.offset| 0)) (.cse6 (= ULTIMATE.start_main_~p~0 1)) (.cse7 (= ULTIMATE.start_main_~q~0 0)) (.cse8 (<= 0 |#t~string6.base|)) (.cse9 (= ULTIMATE.start_main_~r~0 0)) (.cse10 (= |#NULL.offset| 0)) (.cse11 (= ULTIMATE.start_main_~s~0 1)) (.cse12 (<= 1 ULTIMATE.start_main_~x~0)) (.cse13 (= |#t~string6.offset| 0)) (.cse14 (<= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse15 (<= 0 |#StackHeapBarrier|)) (.cse16 (<= ULTIMATE.start_main_~y~0 1)) (.cse17 (= 0 |#t~string4.offset|)) (.cse18 (= |#NULL.base| 0)) (.cse19 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (or (and .cse0 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (< ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~b~0) .cse1 .cse2 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_main_~k~0 1) .cse3 .cse4 .cse5 (<= ULTIMATE.start___VERIFIER_assert_~cond 1) .cse6 (<= 0 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0) (<= 1 ULTIMATE.start_main_~k~0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~cond|) .cse7 .cse8 .cse9 (= ULTIMATE.start_main_~d~0 1) .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19) (and .cse0 (<= 0 ULTIMATE.start_main_~k~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (<= 0 ULTIMATE.start_main_~y~0) (<= 1 ULTIMATE.start_main_~c~0) (<= ULTIMATE.start_main_~k~0 0) .cse7 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0) .cse8 (not (= ULTIMATE.start_main_~b~0 0)) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 (<= ULTIMATE.start_main_~a~0 1) .cse15 .cse16 .cse17 .cse18 .cse19))) [2021-10-29 04:52:03,991 INFO L857 garLoopResultBuilder]: For program point L42-3(lines 42 62) no Hoare annotation was computed. [2021-10-29 04:52:03,991 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-10-29 04:52:03,991 INFO L857 garLoopResultBuilder]: For program point L43(lines 43 44) no Hoare annotation was computed. [2021-10-29 04:52:03,995 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:52:03,997 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:52:04,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:52:04 BoogieIcfgContainer [2021-10-29 04:52:04,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:52:04,047 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:52:04,047 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:52:04,047 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:52:04,048 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:51:44" (3/4) ... [2021-10-29 04:52:04,052 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:52:04,065 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2021-10-29 04:52:04,066 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-29 04:52:04,066 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-29 04:52:04,067 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:52:04,096 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((((((((0 <= "0" && 1 <= a) && \old(cond) <= 1) && b == 0) && 1 <= cond) && x <= 1) && 1 <= cond) && temp == 0) && k <= 1) && \old(cond) == 1) && p == 0) && 0 <= "egcd3-ll.c") && "egcd3-ll.c" == 0) && cond <= 1) && 0 <= c) && 1 <= k) && 1 <= y) && 1 <= \old(cond)) && c <= 0) && 0 <= "reach_error") && v <= 1) && d == 1) && r == 1) && 1 <= v) && q == 1) && #NULL == 0) && 1 <= x) && "reach_error" == 0) && s + 1 <= 0) && cond <= 1) && a <= 1) && 0 <= s + 1) && 0 <= unknown-#StackHeapBarrier-unknown) && y <= 1) && 0 == "0") && #NULL == 0) || ((((((((((((((((((((((0 <= "0" && 1 <= a) && 1 <= cond) && x <= 1) && \old(cond) == 1) && 0 <= "egcd3-ll.c") && "egcd3-ll.c" == 0) && p == 1) && 1 <= y) && q == 0) && 0 <= "reach_error") && r == 0) && #NULL == 0) && s == 1) && 1 <= x) && "reach_error" == 0) && cond <= 1) && a <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && y <= 1) && 0 == "0") && #NULL == 0) && b == y) [2021-10-29 04:52:04,097 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((0 <= "0" && a == x) && \old(cond) <= 1) && c < b) && 1 <= cond) && x <= 1) && 1 <= cond) && k <= 1) && \old(cond) == 1) && 0 <= "egcd3-ll.c") && "egcd3-ll.c" == 0) && cond <= 1) && p == 1) && 0 <= c) && b == v) && 1 <= k) && 1 <= \old(cond)) && q == 0) && 0 <= "reach_error") && r == 0) && d == 1) && #NULL == 0) && s == 1) && 1 <= x) && "reach_error" == 0) && cond <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && y <= 1) && 0 == "0") && #NULL == 0) && b == y) || ((((((((((((((((((((((((((0 <= "0" && 0 <= k) && 1 <= cond) && x <= 1) && \old(cond) == 1) && 0 <= "egcd3-ll.c") && "egcd3-ll.c" == 0) && p == 1) && 0 <= y) && 1 <= c) && k <= 0) && q == 0) && c == a) && 0 <= "reach_error") && !(b == 0)) && r == 0) && #NULL == 0) && s == 1) && 1 <= x) && "reach_error" == 0) && cond <= 1) && a <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && y <= 1) && 0 == "0") && #NULL == 0) && b == y) [2021-10-29 04:52:04,098 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((0 <= "0" && k == 0) && 1 <= cond) && x <= 1) && 0 <= b) && b <= c) && 0 <= "reach_error") && \old(cond) <= 1) && 0 <= "egcd3-ll.c") && p == 1) && #NULL <= 0) && 0 <= "egcd3-ll.c") && b == v) && "reach_error" <= 0) && q == 0) && c == a) && 0 <= "reach_error") && !(b == 0)) && r == 0) && d == 1) && 1 <= \old(cond)) && s == 1) && 1 <= x) && cond <= 1) && 0 <= #NULL) && a <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && "egcd3-ll.c" <= 0) && 0 == "0") && #NULL == 0) && b == y [2021-10-29 04:52:04,098 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((((unknown-#StackHeapBarrier-unknown < "reach_error" && \old(cond) == cond) && a == x) && k == 0) && x <= 1) && 1 <= cond) && 0 <= b) && b <= c) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && (if a == r * y + p * x then 1 else 0) == \old(cond)) && \valid["egcd3-ll.c"] == 1) && \valid["0"] == 1) && "egcd3-ll.c" == 0) && b == v) && unknown-#length-unknown["egcd3-ll.c"] == 11) && \valid["reach_error"] == 1) && q == 0) && c == a) && !(b == 0)) && \valid[0] == 0) && r == 0) && d == 1) && unknown-#StackHeapBarrier-unknown < "0") && unknown-#length-unknown["reach_error"] == 12) && unknown-#memory_int-unknown["0"][1 + "0"] == 0) && #NULL == 0) && s == 1) && "reach_error" == 0) && unknown-#length-unknown["0"] == 2) && unknown-#memory_int-unknown["0"]["0"] == 48) && 0 == "0") && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && b == y) && \old(cond) == cond [2021-10-29 04:52:04,098 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((((unknown-#StackHeapBarrier-unknown < "reach_error" && \old(cond) == cond) && a == x) && k == 0) && x <= 1) && 1 <= cond) && 0 <= b) && b <= c) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && (if a == r * y + p * x then 1 else 0) == \old(cond)) && \valid["egcd3-ll.c"] == 1) && \valid["0"] == 1) && "egcd3-ll.c" == 0) && b == v) && unknown-#length-unknown["egcd3-ll.c"] == 11) && \valid["reach_error"] == 1) && q == 0) && c == a) && !(b == 0)) && \valid[0] == 0) && r == 0) && d == 1) && unknown-#StackHeapBarrier-unknown < "0") && unknown-#length-unknown["reach_error"] == 12) && unknown-#memory_int-unknown["0"][1 + "0"] == 0) && #NULL == 0) && s == 1) && "reach_error" == 0) && unknown-#length-unknown["0"] == 2) && unknown-#memory_int-unknown["0"]["0"] == 48) && 0 == "0") && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && b == y) && \old(cond) == cond [2021-10-29 04:52:04,099 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((((unknown-#StackHeapBarrier-unknown < "reach_error" && \old(cond) == cond) && a == x) && k == 0) && x <= 1) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && (if a == r * y + p * x then 1 else 0) == \old(cond)) && \valid["egcd3-ll.c"] == 1) && \valid["0"] == 1) && "egcd3-ll.c" == 0) && p == 1) && b == v) && unknown-#length-unknown["egcd3-ll.c"] == 11) && \valid["reach_error"] == 1) && 1 <= y) && q == 0) && c == a) && \valid[0] == 0) && r == 0) && d == 1) && unknown-#StackHeapBarrier-unknown < "0") && unknown-#length-unknown["reach_error"] == 12) && unknown-#memory_int-unknown["0"][1 + "0"] == 0) && #NULL == 0) && s == 1) && 1 <= x) && "reach_error" == 0) && unknown-#length-unknown["0"] == 2) && unknown-#memory_int-unknown["0"]["0"] == 48) && y <= 1) && 0 == "0") && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && b == y) && \old(cond) == cond [2021-10-29 04:52:04,099 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((((unknown-#StackHeapBarrier-unknown < "reach_error" && \old(cond) == cond) && a == x) && k == 0) && x <= 1) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && (if a == r * y + p * x then 1 else 0) == \old(cond)) && \valid["egcd3-ll.c"] == 1) && \valid["0"] == 1) && "egcd3-ll.c" == 0) && p == 1) && b == v) && unknown-#length-unknown["egcd3-ll.c"] == 11) && \valid["reach_error"] == 1) && 1 <= y) && q == 0) && c == a) && \valid[0] == 0) && r == 0) && d == 1) && unknown-#StackHeapBarrier-unknown < "0") && unknown-#length-unknown["reach_error"] == 12) && unknown-#memory_int-unknown["0"][1 + "0"] == 0) && #NULL == 0) && s == 1) && 1 <= x) && "reach_error" == 0) && unknown-#length-unknown["0"] == 2) && unknown-#memory_int-unknown["0"]["0"] == 48) && y <= 1) && 0 == "0") && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && b == y) && \old(cond) == cond [2021-10-29 04:52:04,116 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:52:04,116 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:52:04,118 INFO L168 Benchmark]: Toolchain (without parser) took 20786.99 ms. Allocated memory was 121.6 MB in the beginning and 211.8 MB in the end (delta: 90.2 MB). Free memory was 79.8 MB in the beginning and 140.1 MB in the end (delta: -60.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:52:04,118 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 121.6 MB. Free memory was 96.1 MB in the beginning and 96.0 MB in the end (delta: 70.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:52:04,119 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.76 ms. Allocated memory is still 121.6 MB. Free memory was 79.6 MB in the beginning and 96.3 MB in the end (delta: -16.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:52:04,119 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.70 ms. Allocated memory is still 121.6 MB. Free memory was 96.3 MB in the beginning and 94.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:52:04,120 INFO L168 Benchmark]: Boogie Preprocessor took 64.14 ms. Allocated memory is still 121.6 MB. Free memory was 94.8 MB in the beginning and 93.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:52:04,120 INFO L168 Benchmark]: RCFGBuilder took 757.24 ms. Allocated memory is still 121.6 MB. Free memory was 93.5 MB in the beginning and 76.4 MB in the end (delta: 17.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-29 04:52:04,121 INFO L168 Benchmark]: TraceAbstraction took 19452.93 ms. Allocated memory was 121.6 MB in the beginning and 211.8 MB in the end (delta: 90.2 MB). Free memory was 76.0 MB in the beginning and 144.3 MB in the end (delta: -68.3 MB). Peak memory consumption was 105.3 MB. Max. memory is 16.1 GB. [2021-10-29 04:52:04,121 INFO L168 Benchmark]: Witness Printer took 69.95 ms. Allocated memory is still 211.8 MB. Free memory was 144.3 MB in the beginning and 140.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:52:04,124 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 121.6 MB. Free memory was 96.1 MB in the beginning and 96.0 MB in the end (delta: 70.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 373.76 ms. Allocated memory is still 121.6 MB. Free memory was 79.6 MB in the beginning and 96.3 MB in the end (delta: -16.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.70 ms. Allocated memory is still 121.6 MB. Free memory was 96.3 MB in the beginning and 94.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.14 ms. Allocated memory is still 121.6 MB. Free memory was 94.8 MB in the beginning and 93.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 757.24 ms. Allocated memory is still 121.6 MB. Free memory was 93.5 MB in the beginning and 76.4 MB in the end (delta: 17.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19452.93 ms. Allocated memory was 121.6 MB in the beginning and 211.8 MB in the end (delta: 90.2 MB). Free memory was 76.0 MB in the beginning and 144.3 MB in the end (delta: -68.3 MB). Peak memory consumption was 105.3 MB. Max. memory is 16.1 GB. * Witness Printer took 69.95 ms. Allocated memory is still 211.8 MB. Free memory was 144.3 MB in the beginning and 140.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 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: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 19.2s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 159 SDtfs, 415 SDslu, 262 SDs, 0 SdLazy, 324 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 194 GetRequests, 120 SyntacticMatches, 15 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=6, InterpolantAutomatonStates: 48, 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, 8 MinimizatonAttempts, 96 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 18 NumberOfFragments, 1036 HoareAnnotationTreeSize, 8 FomulaSimplifications, 752 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 8 FomulaSimplificationsInter, 995 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 158 ConstructedInterpolants, 7 QuantifiedInterpolants, 2412 SizeOfPredicates, 49 NumberOfNonLiveVariables, 596 ConjunctsInSsa, 103 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 4/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME[ms]: 1601, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 20, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 58, TOOLS_POST_TIME[ms]: 735, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 58, TOOLS_QUANTIFIERELIM_TIME[ms]: 710, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 303, FLUID_QUERY_TIME[ms]: 8, FLUID_QUERIES: 89, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 5, DOMAIN_JOIN_TIME[ms]: 669, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 4, DOMAIN_ISSUBSETEQ_TIME[ms]: 15, DOMAIN_ISBOTTOM_APPLICATIONS: 20, DOMAIN_ISBOTTOM_TIME[ms]: 71, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 448, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 447, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 4, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 3, PATH_EXPR_TIME[ms]: 5, REGEX_TO_DAG_TIME[ms]: 9, DAG_COMPRESSION_TIME[ms]: 43, DAG_COMPRESSION_PROCESSED_NODES: 509, DAG_COMPRESSION_RETAINED_NODES: 79, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((unknown-#StackHeapBarrier-unknown < "reach_error" && \old(cond) == cond) && a == x) && k == 0) && x <= 1) && 1 <= cond) && 0 <= b) && b <= c) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && (if a == r * y + p * x then 1 else 0) == \old(cond)) && \valid["egcd3-ll.c"] == 1) && \valid["0"] == 1) && "egcd3-ll.c" == 0) && b == v) && unknown-#length-unknown["egcd3-ll.c"] == 11) && \valid["reach_error"] == 1) && q == 0) && c == a) && !(b == 0)) && \valid[0] == 0) && r == 0) && d == 1) && unknown-#StackHeapBarrier-unknown < "0") && unknown-#length-unknown["reach_error"] == 12) && unknown-#memory_int-unknown["0"][1 + "0"] == 0) && #NULL == 0) && s == 1) && "reach_error" == 0) && unknown-#length-unknown["0"] == 2) && unknown-#memory_int-unknown["0"]["0"] == 48) && 0 == "0") && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && b == y) && \old(cond) == cond - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((0 <= "0" && a == x) && \old(cond) <= 1) && c < b) && 1 <= cond) && x <= 1) && 1 <= cond) && k <= 1) && \old(cond) == 1) && 0 <= "egcd3-ll.c") && "egcd3-ll.c" == 0) && cond <= 1) && p == 1) && 0 <= c) && b == v) && 1 <= k) && 1 <= \old(cond)) && q == 0) && 0 <= "reach_error") && r == 0) && d == 1) && #NULL == 0) && s == 1) && 1 <= x) && "reach_error" == 0) && cond <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && y <= 1) && 0 == "0") && #NULL == 0) && b == y) || ((((((((((((((((((((((((((0 <= "0" && 0 <= k) && 1 <= cond) && x <= 1) && \old(cond) == 1) && 0 <= "egcd3-ll.c") && "egcd3-ll.c" == 0) && p == 1) && 0 <= y) && 1 <= c) && k <= 0) && q == 0) && c == a) && 0 <= "reach_error") && !(b == 0)) && r == 0) && #NULL == 0) && s == 1) && 1 <= x) && "reach_error" == 0) && cond <= 1) && a <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && y <= 1) && 0 == "0") && #NULL == 0) && b == y) - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((0 <= "0" && k == 0) && 1 <= cond) && x <= 1) && 0 <= b) && b <= c) && 0 <= "reach_error") && \old(cond) <= 1) && 0 <= "egcd3-ll.c") && p == 1) && #NULL <= 0) && 0 <= "egcd3-ll.c") && b == v) && "reach_error" <= 0) && q == 0) && c == a) && 0 <= "reach_error") && !(b == 0)) && r == 0) && d == 1) && 1 <= \old(cond)) && s == 1) && 1 <= x) && cond <= 1) && 0 <= #NULL) && a <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && "egcd3-ll.c" <= 0) && 0 == "0") && #NULL == 0) && b == y - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((unknown-#StackHeapBarrier-unknown < "reach_error" && \old(cond) == cond) && a == x) && k == 0) && x <= 1) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && (if a == r * y + p * x then 1 else 0) == \old(cond)) && \valid["egcd3-ll.c"] == 1) && \valid["0"] == 1) && "egcd3-ll.c" == 0) && p == 1) && b == v) && unknown-#length-unknown["egcd3-ll.c"] == 11) && \valid["reach_error"] == 1) && 1 <= y) && q == 0) && c == a) && \valid[0] == 0) && r == 0) && d == 1) && unknown-#StackHeapBarrier-unknown < "0") && unknown-#length-unknown["reach_error"] == 12) && unknown-#memory_int-unknown["0"][1 + "0"] == 0) && #NULL == 0) && s == 1) && 1 <= x) && "reach_error" == 0) && unknown-#length-unknown["0"] == 2) && unknown-#memory_int-unknown["0"]["0"] == 48) && y <= 1) && 0 == "0") && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && b == y) && \old(cond) == cond - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((0 <= "0" && 1 <= a) && \old(cond) <= 1) && b == 0) && 1 <= cond) && x <= 1) && 1 <= cond) && temp == 0) && k <= 1) && \old(cond) == 1) && p == 0) && 0 <= "egcd3-ll.c") && "egcd3-ll.c" == 0) && cond <= 1) && 0 <= c) && 1 <= k) && 1 <= y) && 1 <= \old(cond)) && c <= 0) && 0 <= "reach_error") && v <= 1) && d == 1) && r == 1) && 1 <= v) && q == 1) && #NULL == 0) && 1 <= x) && "reach_error" == 0) && s + 1 <= 0) && cond <= 1) && a <= 1) && 0 <= s + 1) && 0 <= unknown-#StackHeapBarrier-unknown) && y <= 1) && 0 == "0") && #NULL == 0) || ((((((((((((((((((((((0 <= "0" && 1 <= a) && 1 <= cond) && x <= 1) && \old(cond) == 1) && 0 <= "egcd3-ll.c") && "egcd3-ll.c" == 0) && p == 1) && 1 <= y) && q == 0) && 0 <= "reach_error") && r == 0) && #NULL == 0) && s == 1) && 1 <= x) && "reach_error" == 0) && cond <= 1) && a <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && y <= 1) && 0 == "0") && #NULL == 0) && b == y) - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((unknown-#StackHeapBarrier-unknown < "reach_error" && \old(cond) == cond) && a == x) && k == 0) && x <= 1) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && (if a == r * y + p * x then 1 else 0) == \old(cond)) && \valid["egcd3-ll.c"] == 1) && \valid["0"] == 1) && "egcd3-ll.c" == 0) && p == 1) && b == v) && unknown-#length-unknown["egcd3-ll.c"] == 11) && \valid["reach_error"] == 1) && 1 <= y) && q == 0) && c == a) && \valid[0] == 0) && r == 0) && d == 1) && unknown-#StackHeapBarrier-unknown < "0") && unknown-#length-unknown["reach_error"] == 12) && unknown-#memory_int-unknown["0"][1 + "0"] == 0) && #NULL == 0) && s == 1) && 1 <= x) && "reach_error" == 0) && unknown-#length-unknown["0"] == 2) && unknown-#memory_int-unknown["0"]["0"] == 48) && y <= 1) && 0 == "0") && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && b == y) && \old(cond) == cond - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((unknown-#StackHeapBarrier-unknown < "reach_error" && \old(cond) == cond) && a == x) && k == 0) && x <= 1) && 1 <= cond) && 0 <= b) && b <= c) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "egcd3-ll.c") && (if a == r * y + p * x then 1 else 0) == \old(cond)) && \valid["egcd3-ll.c"] == 1) && \valid["0"] == 1) && "egcd3-ll.c" == 0) && b == v) && unknown-#length-unknown["egcd3-ll.c"] == 11) && \valid["reach_error"] == 1) && q == 0) && c == a) && !(b == 0)) && \valid[0] == 0) && r == 0) && d == 1) && unknown-#StackHeapBarrier-unknown < "0") && unknown-#length-unknown["reach_error"] == 12) && unknown-#memory_int-unknown["0"][1 + "0"] == 0) && #NULL == 0) && s == 1) && "reach_error" == 0) && unknown-#length-unknown["0"] == 2) && unknown-#memory_int-unknown["0"]["0"] == 48) && 0 == "0") && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && b == y) && \old(cond) == cond RESULT: Ultimate proved your program to be correct! [2021-10-29 04:52:04,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad07a4-239e-427f-8edd-549ebb261ee5/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...