./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-21.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6d3c7b5e20b9cb5aff7067fd2169333c3619ec19d2be169214693b588a238e0b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:05:05,101 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:05:05,168 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 02:05:05,174 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:05:05,175 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:05:05,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:05:05,199 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:05:05,200 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:05:05,200 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:05:05,201 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:05:05,202 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:05:05,202 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:05:05,203 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:05:05,204 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:05:05,204 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:05:05,205 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:05:05,205 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:05:05,206 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:05:05,206 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:05:05,207 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:05:05,208 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:05:05,208 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:05:05,209 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:05:05,209 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:05:05,210 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:05:05,210 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:05:05,211 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:05:05,211 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:05:05,211 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:05:05,212 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:05:05,212 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:05:05,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:05:05,213 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:05:05,213 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:05:05,214 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:05:05,214 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:05:05,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:05:05,214 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:05:05,214 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:05:05,214 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:05:05,215 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:05:05,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:05:05,215 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d3c7b5e20b9cb5aff7067fd2169333c3619ec19d2be169214693b588a238e0b [2023-11-29 02:05:05,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:05:05,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:05:05,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:05:05,446 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:05:05,447 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:05:05,448 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-21.i [2023-11-29 02:05:08,372 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:05:08,568 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:05:08,569 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-21.i [2023-11-29 02:05:08,578 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/data/4bff6b36b/81b700a75ea44de18a891b91ce66dc45/FLAG829bbb731 [2023-11-29 02:05:08,590 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/data/4bff6b36b/81b700a75ea44de18a891b91ce66dc45 [2023-11-29 02:05:08,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:05:08,594 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:05:08,595 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:05:08,596 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:05:08,600 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:05:08,601 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:05:08" (1/1) ... [2023-11-29 02:05:08,602 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6655f456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:08, skipping insertion in model container [2023-11-29 02:05:08,602 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:05:08" (1/1) ... [2023-11-29 02:05:08,630 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:05:08,748 WARN L240 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_04dbc8a2-9688-4af6-95cd-2f575a19af2f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-21.i[916,929] [2023-11-29 02:05:08,796 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:05:08,806 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:05:08,817 WARN L240 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_04dbc8a2-9688-4af6-95cd-2f575a19af2f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-21.i[916,929] [2023-11-29 02:05:08,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:05:08,866 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:05:08,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:08 WrapperNode [2023-11-29 02:05:08,866 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:05:08,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:05:08,867 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:05:08,867 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:05:08,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:08" (1/1) ... [2023-11-29 02:05:08,885 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:08" (1/1) ... [2023-11-29 02:05:08,924 INFO L138 Inliner]: procedures = 29, calls = 110, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 358 [2023-11-29 02:05:08,925 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:05:08,925 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:05:08,926 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:05:08,926 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:05:08,936 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:08" (1/1) ... [2023-11-29 02:05:08,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:08" (1/1) ... [2023-11-29 02:05:08,943 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:08" (1/1) ... [2023-11-29 02:05:08,964 INFO L175 MemorySlicer]: Split 91 memory accesses to 2 slices as follows [2, 89]. 98 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 9]. The 12 writes are split as follows [0, 12]. [2023-11-29 02:05:08,964 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:08" (1/1) ... [2023-11-29 02:05:08,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:08" (1/1) ... [2023-11-29 02:05:08,984 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:08" (1/1) ... [2023-11-29 02:05:08,989 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:08" (1/1) ... [2023-11-29 02:05:08,992 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:08" (1/1) ... [2023-11-29 02:05:08,995 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:08" (1/1) ... [2023-11-29 02:05:09,000 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:05:09,001 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:05:09,002 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:05:09,002 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:05:09,003 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:08" (1/1) ... [2023-11-29 02:05:09,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:05:09,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:05:09,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:05:09,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:05:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:05:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-29 02:05:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-29 02:05:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 02:05:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 02:05:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-29 02:05:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-29 02:05:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 02:05:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 02:05:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-11-29 02:05:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-11-29 02:05:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 02:05:09,073 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 02:05:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:05:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 02:05:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:05:09,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:05:09,177 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:05:09,179 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:05:09,562 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:05:09,598 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:05:09,599 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:05:09,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:05:09 BoogieIcfgContainer [2023-11-29 02:05:09,599 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:05:09,602 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:05:09,602 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:05:09,605 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:05:09,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:05:08" (1/3) ... [2023-11-29 02:05:09,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5702c9ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:05:09, skipping insertion in model container [2023-11-29 02:05:09,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:08" (2/3) ... [2023-11-29 02:05:09,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5702c9ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:05:09, skipping insertion in model container [2023-11-29 02:05:09,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:05:09" (3/3) ... [2023-11-29 02:05:09,608 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-21.i [2023-11-29 02:05:09,623 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:05:09,624 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 02:05:09,675 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:05:09,683 INFO L357 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4f35e606, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:05:09,683 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 02:05:09,688 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 79 states have (on average 1.5316455696202531) internal successors, (121), 80 states have internal predecessors, (121), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 02:05:09,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 02:05:09,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:05:09,702 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:05:09,702 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:05:09,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:05:09,708 INFO L85 PathProgramCache]: Analyzing trace with hash -735381027, now seen corresponding path program 1 times [2023-11-29 02:05:09,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:05:09,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659062696] [2023-11-29 02:05:09,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:09,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:05:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:05:09,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:05:09,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659062696] [2023-11-29 02:05:09,963 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 02:05:09,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525313507] [2023-11-29 02:05:09,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:09,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:05:09,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:05:09,966 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:05:09,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 02:05:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:05:10,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 02:05:10,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:05:10,223 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 02:05:10,223 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:05:10,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525313507] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:05:10,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:05:10,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:05:10,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272559616] [2023-11-29 02:05:10,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:05:10,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 02:05:10,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:05:10,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 02:05:10,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:05:10,268 INFO L87 Difference]: Start difference. First operand has 89 states, 79 states have (on average 1.5316455696202531) internal successors, (121), 80 states have internal predecessors, (121), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 02:05:10,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:05:10,312 INFO L93 Difference]: Finished difference Result 175 states and 275 transitions. [2023-11-29 02:05:10,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 02:05:10,315 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 75 [2023-11-29 02:05:10,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:05:10,326 INFO L225 Difference]: With dead ends: 175 [2023-11-29 02:05:10,326 INFO L226 Difference]: Without dead ends: 87 [2023-11-29 02:05:10,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:05:10,334 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:05:10,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:05:10,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-29 02:05:10,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-11-29 02:05:10,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 78 states have (on average 1.4871794871794872) internal successors, (116), 78 states have internal predecessors, (116), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 02:05:10,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 130 transitions. [2023-11-29 02:05:10,383 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 130 transitions. Word has length 75 [2023-11-29 02:05:10,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:05:10,384 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 130 transitions. [2023-11-29 02:05:10,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 02:05:10,385 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 130 transitions. [2023-11-29 02:05:10,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 02:05:10,389 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:05:10,389 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:05:10,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:05:10,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 02:05:10,596 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:05:10,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:05:10,597 INFO L85 PathProgramCache]: Analyzing trace with hash 2082953751, now seen corresponding path program 1 times [2023-11-29 02:05:10,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:05:10,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027050347] [2023-11-29 02:05:10,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:10,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:05:10,659 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:05:10,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [67619009] [2023-11-29 02:05:10,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:10,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:05:10,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:05:10,661 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:05:10,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 02:05:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:05:10,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 02:05:10,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:05:10,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 02:05:10,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2023-11-29 02:05:11,016 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 02:05:11,016 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:05:11,120 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:05:11,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:05:11,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027050347] [2023-11-29 02:05:11,120 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:05:11,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67619009] [2023-11-29 02:05:11,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67619009] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 02:05:11,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:05:11,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2023-11-29 02:05:11,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213937755] [2023-11-29 02:05:11,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:05:11,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:05:11,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:05:11,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:05:11,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:05:11,124 INFO L87 Difference]: Start difference. First operand 87 states and 130 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:05:11,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:05:11,479 INFO L93 Difference]: Finished difference Result 231 states and 345 transitions. [2023-11-29 02:05:11,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:05:11,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 75 [2023-11-29 02:05:11,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:05:11,485 INFO L225 Difference]: With dead ends: 231 [2023-11-29 02:05:11,485 INFO L226 Difference]: Without dead ends: 145 [2023-11-29 02:05:11,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:05:11,487 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 107 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:05:11,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 404 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:05:11,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-11-29 02:05:11,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 102. [2023-11-29 02:05:11,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 93 states have (on average 1.4946236559139785) internal successors, (139), 93 states have internal predecessors, (139), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 02:05:11,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 153 transitions. [2023-11-29 02:05:11,503 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 153 transitions. Word has length 75 [2023-11-29 02:05:11,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:05:11,505 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 153 transitions. [2023-11-29 02:05:11,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:05:11,506 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 153 transitions. [2023-11-29 02:05:11,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 02:05:11,508 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:05:11,508 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:05:11,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 02:05:11,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:05:11,713 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:05:11,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:05:11,713 INFO L85 PathProgramCache]: Analyzing trace with hash -102886042, now seen corresponding path program 1 times [2023-11-29 02:05:11,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:05:11,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738245731] [2023-11-29 02:05:11,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:11,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:05:11,769 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:05:11,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [959658967] [2023-11-29 02:05:11,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:11,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:05:11,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:05:11,771 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:05:11,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 02:05:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:05:11,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:05:11,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:05:11,963 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:05:11,965 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:05:11,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:05:11,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738245731] [2023-11-29 02:05:11,966 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:05:11,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959658967] [2023-11-29 02:05:11,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959658967] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:05:11,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:05:11,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:05:11,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610548246] [2023-11-29 02:05:11,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:05:11,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:05:11,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:05:11,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:05:11,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:05:11,970 INFO L87 Difference]: Start difference. First operand 102 states and 153 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:05:12,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:05:12,007 INFO L93 Difference]: Finished difference Result 237 states and 355 transitions. [2023-11-29 02:05:12,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:05:12,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 76 [2023-11-29 02:05:12,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:05:12,010 INFO L225 Difference]: With dead ends: 237 [2023-11-29 02:05:12,010 INFO L226 Difference]: Without dead ends: 136 [2023-11-29 02:05:12,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:05:12,012 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 52 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:05:12,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 261 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:05:12,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-11-29 02:05:12,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 102. [2023-11-29 02:05:12,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 93 states have (on average 1.4838709677419355) internal successors, (138), 93 states have internal predecessors, (138), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 02:05:12,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 152 transitions. [2023-11-29 02:05:12,024 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 152 transitions. Word has length 76 [2023-11-29 02:05:12,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:05:12,024 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 152 transitions. [2023-11-29 02:05:12,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:05:12,025 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 152 transitions. [2023-11-29 02:05:12,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 02:05:12,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:05:12,027 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:05:12,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 02:05:12,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:05:12,233 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:05:12,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:05:12,233 INFO L85 PathProgramCache]: Analyzing trace with hash 2079926149, now seen corresponding path program 1 times [2023-11-29 02:05:12,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:05:12,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303997551] [2023-11-29 02:05:12,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:12,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:05:12,268 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:05:12,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1312432271] [2023-11-29 02:05:12,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:12,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:05:12,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:05:12,270 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:05:12,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 02:05:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:05:12,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:05:12,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:05:12,441 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:05:12,441 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:05:12,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:05:12,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303997551] [2023-11-29 02:05:12,441 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:05:12,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312432271] [2023-11-29 02:05:12,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312432271] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:05:12,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:05:12,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:05:12,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464641053] [2023-11-29 02:05:12,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:05:12,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:05:12,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:05:12,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:05:12,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:05:12,444 INFO L87 Difference]: Start difference. First operand 102 states and 152 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:05:12,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:05:12,477 INFO L93 Difference]: Finished difference Result 224 states and 332 transitions. [2023-11-29 02:05:12,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:05:12,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 77 [2023-11-29 02:05:12,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:05:12,479 INFO L225 Difference]: With dead ends: 224 [2023-11-29 02:05:12,479 INFO L226 Difference]: Without dead ends: 123 [2023-11-29 02:05:12,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:05:12,481 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 43 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:05:12,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 255 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:05:12,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-29 02:05:12,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 102. [2023-11-29 02:05:12,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 93 states have (on average 1.4731182795698925) internal successors, (137), 93 states have internal predecessors, (137), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 02:05:12,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 151 transitions. [2023-11-29 02:05:12,491 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 151 transitions. Word has length 77 [2023-11-29 02:05:12,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:05:12,492 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 151 transitions. [2023-11-29 02:05:12,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:05:12,492 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 151 transitions. [2023-11-29 02:05:12,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 02:05:12,494 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:05:12,494 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:05:12,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 02:05:12,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:05:12,696 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:05:12,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:05:12,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1726892820, now seen corresponding path program 1 times [2023-11-29 02:05:12,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:05:12,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914440627] [2023-11-29 02:05:12,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:12,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:05:12,727 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:05:12,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [562796129] [2023-11-29 02:05:12,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:12,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:05:12,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:05:12,728 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:05:12,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 02:05:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:05:12,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:05:12,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:05:12,889 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:05:12,889 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:05:12,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:05:12,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914440627] [2023-11-29 02:05:12,889 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:05:12,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562796129] [2023-11-29 02:05:12,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562796129] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:05:12,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:05:12,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:05:12,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671371987] [2023-11-29 02:05:12,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:05:12,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:05:12,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:05:12,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:05:12,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:05:12,892 INFO L87 Difference]: Start difference. First operand 102 states and 151 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:05:12,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:05:12,944 INFO L93 Difference]: Finished difference Result 222 states and 329 transitions. [2023-11-29 02:05:12,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:05:12,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 78 [2023-11-29 02:05:12,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:05:12,946 INFO L225 Difference]: With dead ends: 222 [2023-11-29 02:05:12,946 INFO L226 Difference]: Without dead ends: 121 [2023-11-29 02:05:12,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:05:12,948 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 61 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:05:12,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 512 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:05:12,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-29 02:05:12,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 103. [2023-11-29 02:05:12,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 94 states have (on average 1.4680851063829787) internal successors, (138), 94 states have internal predecessors, (138), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 02:05:12,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 152 transitions. [2023-11-29 02:05:12,957 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 152 transitions. Word has length 78 [2023-11-29 02:05:12,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:05:12,957 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 152 transitions. [2023-11-29 02:05:12,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:05:12,958 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 152 transitions. [2023-11-29 02:05:12,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 02:05:12,959 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:05:12,959 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:05:12,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 02:05:13,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:05:13,160 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:05:13,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:05:13,160 INFO L85 PathProgramCache]: Analyzing trace with hash 552039374, now seen corresponding path program 1 times [2023-11-29 02:05:13,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:05:13,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679394854] [2023-11-29 02:05:13,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:13,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:05:13,190 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:05:13,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2112447077] [2023-11-29 02:05:13,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:13,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:05:13,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:05:13,192 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:05:13,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 02:05:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:05:13,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 02:05:13,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:05:13,360 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:05:13,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2023-11-29 02:05:13,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2023-11-29 02:05:13,487 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:05:13,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 33 [2023-11-29 02:05:13,520 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 02:05:13,520 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:05:13,618 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:05:13,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:05:13,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679394854] [2023-11-29 02:05:13,619 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:05:13,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112447077] [2023-11-29 02:05:13,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112447077] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 02:05:13,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:05:13,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2023-11-29 02:05:13,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682674636] [2023-11-29 02:05:13,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:05:13,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:05:13,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:05:13,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:05:13,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:05:13,621 INFO L87 Difference]: Start difference. First operand 103 states and 152 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:05:13,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:05:13,909 INFO L93 Difference]: Finished difference Result 274 states and 398 transitions. [2023-11-29 02:05:13,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:05:13,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 79 [2023-11-29 02:05:13,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:05:13,912 INFO L225 Difference]: With dead ends: 274 [2023-11-29 02:05:13,912 INFO L226 Difference]: Without dead ends: 172 [2023-11-29 02:05:13,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:05:13,914 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 147 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:05:13,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 592 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:05:13,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-11-29 02:05:13,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 162. [2023-11-29 02:05:13,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 149 states have (on average 1.436241610738255) internal successors, (214), 150 states have internal predecessors, (214), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 02:05:13,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 234 transitions. [2023-11-29 02:05:13,928 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 234 transitions. Word has length 79 [2023-11-29 02:05:13,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:05:13,928 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 234 transitions. [2023-11-29 02:05:13,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:05:13,928 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 234 transitions. [2023-11-29 02:05:13,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 02:05:13,930 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:05:13,930 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:05:13,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 02:05:14,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:05:14,136 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:05:14,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:05:14,136 INFO L85 PathProgramCache]: Analyzing trace with hash 243281775, now seen corresponding path program 1 times [2023-11-29 02:05:14,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:05:14,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372737590] [2023-11-29 02:05:14,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:14,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:05:14,159 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:05:14,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1473858277] [2023-11-29 02:05:14,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:14,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:05:14,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:05:14,161 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:05:14,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 02:05:14,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:05:14,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:05:14,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:05:14,310 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:05:14,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:05:14,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:05:14,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372737590] [2023-11-29 02:05:14,311 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:05:14,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473858277] [2023-11-29 02:05:14,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473858277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:05:14,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:05:14,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:05:14,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991527674] [2023-11-29 02:05:14,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:05:14,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:05:14,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:05:14,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:05:14,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:05:14,314 INFO L87 Difference]: Start difference. First operand 162 states and 234 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:05:14,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:05:14,344 INFO L93 Difference]: Finished difference Result 391 states and 563 transitions. [2023-11-29 02:05:14,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:05:14,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 80 [2023-11-29 02:05:14,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:05:14,348 INFO L225 Difference]: With dead ends: 391 [2023-11-29 02:05:14,348 INFO L226 Difference]: Without dead ends: 230 [2023-11-29 02:05:14,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:05:14,350 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 47 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:05:14,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 239 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:05:14,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-11-29 02:05:14,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 179. [2023-11-29 02:05:14,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 166 states have (on average 1.4337349397590362) internal successors, (238), 167 states have internal predecessors, (238), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 02:05:14,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 258 transitions. [2023-11-29 02:05:14,363 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 258 transitions. Word has length 80 [2023-11-29 02:05:14,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:05:14,364 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 258 transitions. [2023-11-29 02:05:14,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:05:14,364 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 258 transitions. [2023-11-29 02:05:14,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 02:05:14,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:05:14,365 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:05:14,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 02:05:14,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:05:14,566 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:05:14,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:05:14,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1531371747, now seen corresponding path program 1 times [2023-11-29 02:05:14,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:05:14,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968922174] [2023-11-29 02:05:14,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:14,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:05:14,593 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:05:14,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [857080703] [2023-11-29 02:05:14,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:14,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:05:14,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:05:14,595 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:05:14,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 02:05:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:05:14,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:05:14,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:05:14,774 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:05:14,774 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:05:14,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:05:14,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968922174] [2023-11-29 02:05:14,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:05:14,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857080703] [2023-11-29 02:05:14,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857080703] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:05:14,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:05:14,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:05:14,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158570846] [2023-11-29 02:05:14,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:05:14,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:05:14,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:05:14,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:05:14,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:05:14,776 INFO L87 Difference]: Start difference. First operand 179 states and 258 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:05:14,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:05:14,810 INFO L93 Difference]: Finished difference Result 189 states and 269 transitions. [2023-11-29 02:05:14,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:05:14,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 81 [2023-11-29 02:05:14,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:05:14,813 INFO L225 Difference]: With dead ends: 189 [2023-11-29 02:05:14,813 INFO L226 Difference]: Without dead ends: 187 [2023-11-29 02:05:14,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:05:14,815 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 10 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:05:14,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 479 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:05:14,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-11-29 02:05:14,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 185. [2023-11-29 02:05:14,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 172 states have (on average 1.4186046511627908) internal successors, (244), 173 states have internal predecessors, (244), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 02:05:14,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 264 transitions. [2023-11-29 02:05:14,830 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 264 transitions. Word has length 81 [2023-11-29 02:05:14,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:05:14,831 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 264 transitions. [2023-11-29 02:05:14,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:05:14,832 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 264 transitions. [2023-11-29 02:05:14,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 02:05:14,833 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:05:14,833 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:05:14,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 02:05:15,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 02:05:15,034 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:05:15,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:05:15,034 INFO L85 PathProgramCache]: Analyzing trace with hash 800927800, now seen corresponding path program 1 times [2023-11-29 02:05:15,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:05:15,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847491758] [2023-11-29 02:05:15,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:15,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:05:15,055 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:05:15,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [261113737] [2023-11-29 02:05:15,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:15,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:05:15,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:05:15,056 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:05:15,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 02:05:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:05:15,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:05:15,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:05:15,199 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:05:15,199 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:05:15,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:05:15,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847491758] [2023-11-29 02:05:15,199 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:05:15,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261113737] [2023-11-29 02:05:15,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261113737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:05:15,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:05:15,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:05:15,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553114669] [2023-11-29 02:05:15,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:05:15,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:05:15,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:05:15,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:05:15,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:05:15,201 INFO L87 Difference]: Start difference. First operand 185 states and 264 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:05:15,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:05:15,223 INFO L93 Difference]: Finished difference Result 372 states and 533 transitions. [2023-11-29 02:05:15,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:05:15,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 81 [2023-11-29 02:05:15,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:05:15,225 INFO L225 Difference]: With dead ends: 372 [2023-11-29 02:05:15,225 INFO L226 Difference]: Without dead ends: 188 [2023-11-29 02:05:15,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:05:15,227 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:05:15,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 245 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:05:15,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-11-29 02:05:15,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2023-11-29 02:05:15,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 175 states have (on average 1.4114285714285715) internal successors, (247), 176 states have internal predecessors, (247), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 02:05:15,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 267 transitions. [2023-11-29 02:05:15,237 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 267 transitions. Word has length 81 [2023-11-29 02:05:15,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:05:15,237 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 267 transitions. [2023-11-29 02:05:15,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:05:15,238 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 267 transitions. [2023-11-29 02:05:15,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 02:05:15,239 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:05:15,239 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:05:15,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 02:05:15,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 02:05:15,440 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:05:15,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:05:15,440 INFO L85 PathProgramCache]: Analyzing trace with hash -210189450, now seen corresponding path program 1 times [2023-11-29 02:05:15,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:05:15,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582272044] [2023-11-29 02:05:15,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:15,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:05:15,463 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:05:15,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2075253204] [2023-11-29 02:05:15,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:15,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:05:15,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:05:15,464 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:05:15,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 02:05:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:05:15,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 02:05:15,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:05:15,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-11-29 02:05:15,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-11-29 02:05:15,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-29 02:05:15,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-29 02:05:15,768 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 02:05:15,768 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:05:15,972 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 02:05:15,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:05:15,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582272044] [2023-11-29 02:05:15,973 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:05:15,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075253204] [2023-11-29 02:05:15,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075253204] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:05:15,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:05:15,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2023-11-29 02:05:15,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208730288] [2023-11-29 02:05:15,974 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:05:15,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:05:15,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:05:15,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:05:15,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:05:15,976 INFO L87 Difference]: Start difference. First operand 188 states and 267 transitions. Second operand has 10 states, 8 states have (on average 7.375) internal successors, (59), 10 states have internal predecessors, (59), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 2 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 02:05:16,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:05:16,328 INFO L93 Difference]: Finished difference Result 379 states and 536 transitions. [2023-11-29 02:05:16,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:05:16,328 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.375) internal successors, (59), 10 states have internal predecessors, (59), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 2 states have call predecessors, (11), 4 states have call successors, (11) Word has length 81 [2023-11-29 02:05:16,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:05:16,330 INFO L225 Difference]: With dead ends: 379 [2023-11-29 02:05:16,330 INFO L226 Difference]: Without dead ends: 192 [2023-11-29 02:05:16,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 147 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:05:16,332 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 280 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:05:16,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 301 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:05:16,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-29 02:05:16,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2023-11-29 02:05:16,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 178 states have (on average 1.3876404494382022) internal successors, (247), 179 states have internal predecessors, (247), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 02:05:16,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 267 transitions. [2023-11-29 02:05:16,343 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 267 transitions. Word has length 81 [2023-11-29 02:05:16,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:05:16,343 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 267 transitions. [2023-11-29 02:05:16,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.375) internal successors, (59), 10 states have internal predecessors, (59), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 2 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 02:05:16,344 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 267 transitions. [2023-11-29 02:05:16,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 02:05:16,345 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:05:16,345 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:05:16,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-29 02:05:16,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 02:05:16,546 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:05:16,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:05:16,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1866197908, now seen corresponding path program 1 times [2023-11-29 02:05:16,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:05:16,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666003672] [2023-11-29 02:05:16,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:16,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:05:16,567 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:05:16,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [400836441] [2023-11-29 02:05:16,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:16,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:05:16,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:05:16,569 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:05:16,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 02:05:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:05:16,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:05:16,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:05:16,835 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:05:16,835 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:05:16,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:05:16,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666003672] [2023-11-29 02:05:16,835 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:05:16,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400836441] [2023-11-29 02:05:16,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400836441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:05:16,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:05:16,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:05:16,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402815081] [2023-11-29 02:05:16,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:05:16,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:05:16,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:05:16,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:05:16,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:05:16,837 INFO L87 Difference]: Start difference. First operand 192 states and 267 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:05:17,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:05:17,023 INFO L93 Difference]: Finished difference Result 506 states and 701 transitions. [2023-11-29 02:05:17,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:05:17,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 82 [2023-11-29 02:05:17,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:05:17,026 INFO L225 Difference]: With dead ends: 506 [2023-11-29 02:05:17,026 INFO L226 Difference]: Without dead ends: 315 [2023-11-29 02:05:17,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:05:17,028 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 130 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:05:17,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 277 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:05:17,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-29 02:05:17,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 242. [2023-11-29 02:05:17,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 219 states have (on average 1.3835616438356164) internal successors, (303), 220 states have internal predecessors, (303), 17 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-29 02:05:17,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 337 transitions. [2023-11-29 02:05:17,045 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 337 transitions. Word has length 82 [2023-11-29 02:05:17,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:05:17,045 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 337 transitions. [2023-11-29 02:05:17,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:05:17,046 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 337 transitions. [2023-11-29 02:05:17,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 02:05:17,047 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:05:17,047 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:05:17,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 02:05:17,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 02:05:17,254 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:05:17,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:05:17,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1048312301, now seen corresponding path program 1 times [2023-11-29 02:05:17,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:05:17,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400821907] [2023-11-29 02:05:17,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:17,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:05:17,278 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:05:17,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [320184836] [2023-11-29 02:05:17,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:17,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:05:17,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:05:17,280 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:05:17,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 02:05:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:05:17,502 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:05:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:05:17,669 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:05:17,669 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 02:05:17,670 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 02:05:17,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 02:05:17,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 02:05:17,875 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:05:17,878 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 02:05:17,913 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem27 could not be translated [2023-11-29 02:05:17,914 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem27 could not be translated [2023-11-29 02:05:17,915 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem28 could not be translated [2023-11-29 02:05:17,915 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem27 could not be translated [2023-11-29 02:05:17,915 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short33 could not be translated [2023-11-29 02:05:17,915 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem28 could not be translated [2023-11-29 02:05:17,915 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short29 could not be translated [2023-11-29 02:05:17,916 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short33 could not be translated [2023-11-29 02:05:17,916 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short29 could not be translated [2023-11-29 02:05:17,916 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem28 could not be translated [2023-11-29 02:05:17,916 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem27 could not be translated [2023-11-29 02:05:17,917 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated [2023-11-29 02:05:17,917 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated [2023-11-29 02:05:17,917 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated [2023-11-29 02:05:17,917 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated [2023-11-29 02:05:17,917 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short41 could not be translated [2023-11-29 02:05:17,918 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short37 could not be translated [2023-11-29 02:05:17,918 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated [2023-11-29 02:05:17,918 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated [2023-11-29 02:05:17,919 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short41 could not be translated [2023-11-29 02:05:17,919 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated [2023-11-29 02:05:17,919 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short37 could not be translated [2023-11-29 02:05:17,919 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-29 02:05:17,920 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-29 02:05:17,920 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-29 02:05:17,920 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-29 02:05:17,920 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated [2023-11-29 02:05:17,920 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short49 could not be translated [2023-11-29 02:05:17,920 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-29 02:05:17,921 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-29 02:05:17,921 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short49 could not be translated [2023-11-29 02:05:17,921 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-29 02:05:17,921 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated [2023-11-29 02:05:17,922 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-29 02:05:17,923 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-11-29 02:05:17,923 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-29 02:05:17,924 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-29 02:05:17,924 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-29 02:05:17,924 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short60 could not be translated [2023-11-29 02:05:17,924 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated [2023-11-29 02:05:17,924 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-29 02:05:17,925 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-29 02:05:17,925 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-29 02:05:17,925 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short60 could not be translated [2023-11-29 02:05:17,925 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-29 02:05:17,926 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated [2023-11-29 02:05:17,926 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-29 02:05:17,926 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-29 02:05:17,926 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-29 02:05:17,927 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-29 02:05:17,927 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short64 could not be translated [2023-11-29 02:05:17,927 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short68 could not be translated [2023-11-29 02:05:17,927 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-29 02:05:17,928 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short64 could not be translated [2023-11-29 02:05:17,928 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-29 02:05:17,928 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short68 could not be translated [2023-11-29 02:05:17,928 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-29 02:05:17,930 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite20 could not be translated [2023-11-29 02:05:17,930 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-11-29 02:05:17,930 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem18 could not be translated [2023-11-29 02:05:17,930 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem17 could not be translated [2023-11-29 02:05:17,931 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short24 could not be translated [2023-11-29 02:05:17,931 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite73 could not be translated [2023-11-29 02:05:17,932 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite75 could not be translated [2023-11-29 02:05:17,932 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite73 could not be translated [2023-11-29 02:05:17,932 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite73 could not be translated [2023-11-29 02:05:17,932 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short90 could not be translated [2023-11-29 02:05:17,932 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite75 could not be translated [2023-11-29 02:05:17,933 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite73 could not be translated [2023-11-29 02:05:17,933 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-11-29 02:05:17,933 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-11-29 02:05:17,933 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated [2023-11-29 02:05:17,934 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short90 could not be translated [2023-11-29 02:05:17,934 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite75 could not be translated [2023-11-29 02:05:17,934 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite80 could not be translated [2023-11-29 02:05:17,934 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite75 could not be translated [2023-11-29 02:05:17,935 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem81 could not be translated [2023-11-29 02:05:17,935 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem87 could not be translated [2023-11-29 02:05:17,935 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated [2023-11-29 02:05:17,935 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short90 could not be translated [2023-11-29 02:05:17,935 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-11-29 02:05:17,935 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite80 could not be translated [2023-11-29 02:05:17,936 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite73 could not be translated [2023-11-29 02:05:17,936 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated [2023-11-29 02:05:17,936 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-11-29 02:05:17,936 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated [2023-11-29 02:05:17,936 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-11-29 02:05:17,936 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite80 could not be translated [2023-11-29 02:05:17,937 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated [2023-11-29 02:05:17,937 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem81 could not be translated [2023-11-29 02:05:17,937 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated [2023-11-29 02:05:17,937 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite75 could not be translated [2023-11-29 02:05:17,937 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated [2023-11-29 02:05:17,937 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-11-29 02:05:17,937 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite73 could not be translated [2023-11-29 02:05:17,937 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem87 could not be translated [2023-11-29 02:05:17,937 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short90 could not be translated [2023-11-29 02:05:17,938 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem81 could not be translated [2023-11-29 02:05:17,938 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite73 could not be translated [2023-11-29 02:05:17,938 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite80 could not be translated [2023-11-29 02:05:17,938 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short107 could not be translated [2023-11-29 02:05:17,938 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite75 could not be translated [2023-11-29 02:05:17,938 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-11-29 02:05:17,938 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated [2023-11-29 02:05:17,939 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short90 could not be translated [2023-11-29 02:05:17,939 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated [2023-11-29 02:05:17,939 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem87 could not be translated [2023-11-29 02:05:17,939 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated [2023-11-29 02:05:17,939 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated [2023-11-29 02:05:17,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:05:17 BoogieIcfgContainer [2023-11-29 02:05:17,957 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 02:05:17,958 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:05:17,958 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:05:17,958 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:05:17,958 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:05:09" (3/4) ... [2023-11-29 02:05:17,960 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 02:05:17,961 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:05:17,961 INFO L158 Benchmark]: Toolchain (without parser) took 9367.44ms. Allocated memory was 178.3MB in the beginning and 230.7MB in the end (delta: 52.4MB). Free memory was 136.8MB in the beginning and 174.6MB in the end (delta: -37.8MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2023-11-29 02:05:17,962 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 178.3MB. Free memory is still 121.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:05:17,962 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.02ms. Allocated memory is still 178.3MB. Free memory was 136.8MB in the beginning and 122.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 02:05:17,962 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.75ms. Allocated memory is still 178.3MB. Free memory was 122.1MB in the beginning and 118.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 02:05:17,963 INFO L158 Benchmark]: Boogie Preprocessor took 75.23ms. Allocated memory is still 178.3MB. Free memory was 118.6MB in the beginning and 114.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 02:05:17,963 INFO L158 Benchmark]: RCFGBuilder took 597.90ms. Allocated memory is still 178.3MB. Free memory was 114.4MB in the beginning and 87.9MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-29 02:05:17,963 INFO L158 Benchmark]: TraceAbstraction took 8355.72ms. Allocated memory was 178.3MB in the beginning and 230.7MB in the end (delta: 52.4MB). Free memory was 87.2MB in the beginning and 174.6MB in the end (delta: -87.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:05:17,963 INFO L158 Benchmark]: Witness Printer took 3.04ms. Allocated memory is still 230.7MB. Free memory is still 174.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:05:17,965 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 178.3MB. Free memory is still 121.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.02ms. Allocated memory is still 178.3MB. Free memory was 136.8MB in the beginning and 122.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.75ms. Allocated memory is still 178.3MB. Free memory was 122.1MB in the beginning and 118.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.23ms. Allocated memory is still 178.3MB. Free memory was 118.6MB in the beginning and 114.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 597.90ms. Allocated memory is still 178.3MB. Free memory was 114.4MB in the beginning and 87.9MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8355.72ms. Allocated memory was 178.3MB in the beginning and 230.7MB in the end (delta: 52.4MB). Free memory was 87.2MB in the beginning and 174.6MB in the end (delta: -87.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.04ms. Allocated memory is still 230.7MB. Free memory is still 174.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem28 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem28 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short29 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short29 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem28 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short24 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short90 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short90 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite80 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem81 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem87 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short90 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite80 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite80 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem81 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem87 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short90 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem81 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite80 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short107 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short90 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem87 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 94, overapproximation of someBinaryFLOATComparisonOperation at line 87. Possible FailurePath: [L33] unsigned char isInitial = 0; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 32, 0, 15.6, 15.4, 32.2, 1, 256, 5.75, 8.6 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 32, 0, 15.6, 15.4, 32.2, 1, 256, 5.75, 8.6 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 32, 0, 15.6, 15.4, 32.2, 1, 256, 5.75, 8.6 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 32, 0, 15.6, 15.4, 32.2, 1, 256, 5.75, 8.6 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 32, 0, 15.6, 15.4, 32.2, 1, 256, 5.75, 8.6 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 32, 0, 15.6, 15.4, 32.2, 1, 256, 5.75, 8.6 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 32, 0, 15.6, 15.4, 32.2, 1, 256, 5.75, 8.6 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 32, 0, 15.6, 15.4, 32.2, 1, 256, 5.75, 8.6 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 32, 0, 15.6, 15.4, 32.2, 1, 256, 5.75, 8.6 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 32, 0, 15.6, 15.4, 32.2, 1, 256, 5.75, 8.6 }; [L45] unsigned char last_1_WrapperStruct0_var_1_7 = 0; [L46] signed short int last_1_WrapperStruct0_var_1_13 = 256; [L98] isInitial = 1 [L99] FCALL initially() [L100] COND TRUE 1 [L101] CALL updateLastVariables() [L90] EXPR WrapperStruct0.var_1_7 [L90] last_1_WrapperStruct0_var_1_7 = WrapperStruct0.var_1_7 [L91] EXPR WrapperStruct0.var_1_13 [L91] last_1_WrapperStruct0_var_1_13 = WrapperStruct0.var_1_13 [L101] RET updateLastVariables() [L102] CALL updateVariables() [L75] WrapperStruct0.var_1_8 = __VERIFIER_nondet_double() [L76] EXPR WrapperStruct0.var_1_8 [L76] EXPR WrapperStruct0.var_1_8 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L76] EXPR WrapperStruct0.var_1_8 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F [L76] EXPR WrapperStruct0.var_1_8 [L76] EXPR WrapperStruct0.var_1_8 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L76] EXPR (WrapperStruct0.var_1_8 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854776000e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L76] EXPR (WrapperStruct0.var_1_8 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854776000e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L76] CALL assume_abort_if_not((WrapperStruct0.var_1_8 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854776000e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L76] RET assume_abort_if_not((WrapperStruct0.var_1_8 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854776000e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L77] WrapperStruct0.var_1_9 = __VERIFIER_nondet_double() [L78] EXPR WrapperStruct0.var_1_9 [L78] EXPR WrapperStruct0.var_1_9 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_9 <= -1.0e-20F VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L78] EXPR WrapperStruct0.var_1_9 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_9 <= -1.0e-20F [L78] EXPR WrapperStruct0.var_1_9 [L78] EXPR WrapperStruct0.var_1_9 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_9 <= -1.0e-20F VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L78] EXPR (WrapperStruct0.var_1_9 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_9 <= -1.0e-20F) || (WrapperStruct0.var_1_9 <= 9223372.036854776000e+12F && WrapperStruct0.var_1_9 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L78] EXPR (WrapperStruct0.var_1_9 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_9 <= -1.0e-20F) || (WrapperStruct0.var_1_9 <= 9223372.036854776000e+12F && WrapperStruct0.var_1_9 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L78] CALL assume_abort_if_not((WrapperStruct0.var_1_9 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_9 <= -1.0e-20F) || (WrapperStruct0.var_1_9 <= 9223372.036854776000e+12F && WrapperStruct0.var_1_9 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L78] RET assume_abort_if_not((WrapperStruct0.var_1_9 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_9 <= -1.0e-20F) || (WrapperStruct0.var_1_9 <= 9223372.036854776000e+12F && WrapperStruct0.var_1_9 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L79] WrapperStruct0.var_1_10 = __VERIFIER_nondet_double() [L80] EXPR WrapperStruct0.var_1_10 [L80] EXPR WrapperStruct0.var_1_10 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_10 <= -1.0e-20F VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L80] EXPR WrapperStruct0.var_1_10 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_10 <= -1.0e-20F [L80] EXPR WrapperStruct0.var_1_10 [L80] EXPR WrapperStruct0.var_1_10 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_10 <= -1.0e-20F VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L80] EXPR (WrapperStruct0.var_1_10 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_10 <= -1.0e-20F) || (WrapperStruct0.var_1_10 <= 9223372.036854776000e+12F && WrapperStruct0.var_1_10 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L80] EXPR (WrapperStruct0.var_1_10 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_10 <= -1.0e-20F) || (WrapperStruct0.var_1_10 <= 9223372.036854776000e+12F && WrapperStruct0.var_1_10 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L80] CALL assume_abort_if_not((WrapperStruct0.var_1_10 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_10 <= -1.0e-20F) || (WrapperStruct0.var_1_10 <= 9223372.036854776000e+12F && WrapperStruct0.var_1_10 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L80] RET assume_abort_if_not((WrapperStruct0.var_1_10 >= -922337.2036854776000e+13F && WrapperStruct0.var_1_10 <= -1.0e-20F) || (WrapperStruct0.var_1_10 <= 9223372.036854776000e+12F && WrapperStruct0.var_1_10 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L81] WrapperStruct0.var_1_12 = __VERIFIER_nondet_uchar() [L82] EXPR WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L82] CALL assume_abort_if_not(WrapperStruct0.var_1_12 >= 1) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L82] RET assume_abort_if_not(WrapperStruct0.var_1_12 >= 1) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L83] EXPR WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L83] CALL assume_abort_if_not(WrapperStruct0.var_1_12 <= 1) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L83] RET assume_abort_if_not(WrapperStruct0.var_1_12 <= 1) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L84] WrapperStruct0.var_1_14 = __VERIFIER_nondet_float() [L85] EXPR WrapperStruct0.var_1_14 [L85] EXPR WrapperStruct0.var_1_14 >= 0.0F && WrapperStruct0.var_1_14 <= -1.0e-20F VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L85] EXPR WrapperStruct0.var_1_14 >= 0.0F && WrapperStruct0.var_1_14 <= -1.0e-20F [L85] EXPR WrapperStruct0.var_1_14 [L85] EXPR WrapperStruct0.var_1_14 >= 0.0F && WrapperStruct0.var_1_14 <= -1.0e-20F VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L85] EXPR (WrapperStruct0.var_1_14 >= 0.0F && WrapperStruct0.var_1_14 <= -1.0e-20F) || (WrapperStruct0.var_1_14 <= 9223372.036854776000e+12F && WrapperStruct0.var_1_14 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L85] EXPR (WrapperStruct0.var_1_14 >= 0.0F && WrapperStruct0.var_1_14 <= -1.0e-20F) || (WrapperStruct0.var_1_14 <= 9223372.036854776000e+12F && WrapperStruct0.var_1_14 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L85] CALL assume_abort_if_not((WrapperStruct0.var_1_14 >= 0.0F && WrapperStruct0.var_1_14 <= -1.0e-20F) || (WrapperStruct0.var_1_14 <= 9223372.036854776000e+12F && WrapperStruct0.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L85] RET assume_abort_if_not((WrapperStruct0.var_1_14 >= 0.0F && WrapperStruct0.var_1_14 <= -1.0e-20F) || (WrapperStruct0.var_1_14 <= 9223372.036854776000e+12F && WrapperStruct0.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L86] WrapperStruct0.var_1_15 = __VERIFIER_nondet_float() [L87] EXPR WrapperStruct0.var_1_15 [L87] EXPR WrapperStruct0.var_1_15 >= 0.0F && WrapperStruct0.var_1_15 <= -1.0e-20F VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L87] EXPR WrapperStruct0.var_1_15 >= 0.0F && WrapperStruct0.var_1_15 <= -1.0e-20F [L87] EXPR WrapperStruct0.var_1_15 [L87] EXPR WrapperStruct0.var_1_15 >= 0.0F && WrapperStruct0.var_1_15 <= -1.0e-20F VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L87] EXPR (WrapperStruct0.var_1_15 >= 0.0F && WrapperStruct0.var_1_15 <= -1.0e-20F) || (WrapperStruct0.var_1_15 <= 9223372.036854776000e+12F && WrapperStruct0.var_1_15 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L87] EXPR (WrapperStruct0.var_1_15 >= 0.0F && WrapperStruct0.var_1_15 <= -1.0e-20F) || (WrapperStruct0.var_1_15 <= 9223372.036854776000e+12F && WrapperStruct0.var_1_15 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L87] CALL assume_abort_if_not((WrapperStruct0.var_1_15 >= 0.0F && WrapperStruct0.var_1_15 <= -1.0e-20F) || (WrapperStruct0.var_1_15 <= 9223372.036854776000e+12F && WrapperStruct0.var_1_15 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L87] RET assume_abort_if_not((WrapperStruct0.var_1_15 >= 0.0F && WrapperStruct0.var_1_15 <= -1.0e-20F) || (WrapperStruct0.var_1_15 <= 9223372.036854776000e+12F && WrapperStruct0.var_1_15 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L102] RET updateVariables() [L103] CALL step() [L50] COND TRUE (last_1_WrapperStruct0_var_1_13 + ((((last_1_WrapperStruct0_var_1_13) > (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13)))) < (last_1_WrapperStruct0_var_1_13 * last_1_WrapperStruct0_var_1_13) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L51] COND FALSE !(last_1_WrapperStruct0_var_1_13 < (last_1_WrapperStruct0_var_1_13 - last_1_WrapperStruct0_var_1_13)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L59] WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L59] COND TRUE WrapperStruct0.var_1_12 [L60] EXPR WrapperStruct0.var_1_14 [L60] EXPR WrapperStruct0.var_1_15 [L60] EXPR WrapperStruct0.var_1_8 [L60] EXPR WrapperStruct0.var_1_10 [L60] EXPR WrapperStruct0.var_1_9 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L60] COND FALSE !((WrapperStruct0.var_1_14 - WrapperStruct0.var_1_15) >= ((WrapperStruct0.var_1_8 + WrapperStruct0.var_1_10) + WrapperStruct0.var_1_9)) [L63] EXPR WrapperStruct0.var_1_1 [L63] WrapperStruct0.var_1_13 = WrapperStruct0.var_1_1 [L66] EXPR WrapperStruct0.var_1_8 [L66] EXPR WrapperStruct0.var_1_9 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L66] EXPR ((WrapperStruct0.var_1_8) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_9) [L66] EXPR WrapperStruct0.var_1_8 [L66] EXPR ((WrapperStruct0.var_1_8) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_9) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L66] EXPR WrapperStruct0.var_1_10 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L66] COND TRUE ((((WrapperStruct0.var_1_8) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_9))) <= WrapperStruct0.var_1_10 [L67] last_1_WrapperStruct0_var_1_7 && (WrapperStruct0.var_1_1 >= WrapperStruct0.var_1_1) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L67] last_1_WrapperStruct0_var_1_7 && (WrapperStruct0.var_1_1 >= WrapperStruct0.var_1_1) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L67] COND FALSE !(last_1_WrapperStruct0_var_1_7 && (WrapperStruct0.var_1_1 >= WrapperStruct0.var_1_1)) [L103] RET step() [L104] CALL, EXPR property() [L94] EXPR ((last_1_WrapperStruct0_var_1_13 + ((((last_1_WrapperStruct0_var_1_13) > (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13)))) < (last_1_WrapperStruct0_var_1_13 * last_1_WrapperStruct0_var_1_13)) ? ((last_1_WrapperStruct0_var_1_13 < (last_1_WrapperStruct0_var_1_13 - last_1_WrapperStruct0_var_1_13)) ? ((last_1_WrapperStruct0_var_1_13 != (((((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13))) < 0 ) ? -((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13))) : ((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13)))))) ? (WrapperStruct0.var_1_1 == ((unsigned short int) last_1_WrapperStruct0_var_1_13)) : 1) : 1) : (WrapperStruct0.var_1_1 == ((unsigned short int) last_1_WrapperStruct0_var_1_13)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L94] EXPR (last_1_WrapperStruct0_var_1_13 < (last_1_WrapperStruct0_var_1_13 - last_1_WrapperStruct0_var_1_13)) ? ((last_1_WrapperStruct0_var_1_13 != (((((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13))) < 0 ) ? -((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13))) : ((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13)))))) ? (WrapperStruct0.var_1_1 == ((unsigned short int) last_1_WrapperStruct0_var_1_13)) : 1) : 1 [L94] EXPR (last_1_WrapperStruct0_var_1_13 < (last_1_WrapperStruct0_var_1_13 - last_1_WrapperStruct0_var_1_13)) ? ((last_1_WrapperStruct0_var_1_13 != (((((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13))) < 0 ) ? -((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13))) : ((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13)))))) ? (WrapperStruct0.var_1_1 == ((unsigned short int) last_1_WrapperStruct0_var_1_13)) : 1) : 1 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L94] EXPR ((last_1_WrapperStruct0_var_1_13 + ((((last_1_WrapperStruct0_var_1_13) > (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13)))) < (last_1_WrapperStruct0_var_1_13 * last_1_WrapperStruct0_var_1_13)) ? ((last_1_WrapperStruct0_var_1_13 < (last_1_WrapperStruct0_var_1_13 - last_1_WrapperStruct0_var_1_13)) ? ((last_1_WrapperStruct0_var_1_13 != (((((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13))) < 0 ) ? -((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13))) : ((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13)))))) ? (WrapperStruct0.var_1_1 == ((unsigned short int) last_1_WrapperStruct0_var_1_13)) : 1) : 1) : (WrapperStruct0.var_1_1 == ((unsigned short int) last_1_WrapperStruct0_var_1_13)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L94] EXPR (((last_1_WrapperStruct0_var_1_13 + ((((last_1_WrapperStruct0_var_1_13) > (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13)))) < (last_1_WrapperStruct0_var_1_13 * last_1_WrapperStruct0_var_1_13)) ? ((last_1_WrapperStruct0_var_1_13 < (last_1_WrapperStruct0_var_1_13 - last_1_WrapperStruct0_var_1_13)) ? ((last_1_WrapperStruct0_var_1_13 != (((((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13))) < 0 ) ? -((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13))) : ((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13)))))) ? (WrapperStruct0.var_1_1 == ((unsigned short int) last_1_WrapperStruct0_var_1_13)) : 1) : 1) : (WrapperStruct0.var_1_1 == ((unsigned short int) last_1_WrapperStruct0_var_1_13))) && ((((((WrapperStruct0.var_1_8) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_9))) <= WrapperStruct0.var_1_10) ? ((last_1_WrapperStruct0_var_1_7 && (WrapperStruct0.var_1_1 >= WrapperStruct0.var_1_1)) ? (WrapperStruct0.var_1_7 == ((unsigned char) 0)) : 1) : (WrapperStruct0.var_1_7 == ((unsigned char) WrapperStruct0.var_1_12))) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L94] EXPR (((last_1_WrapperStruct0_var_1_13 + ((((last_1_WrapperStruct0_var_1_13) > (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13)))) < (last_1_WrapperStruct0_var_1_13 * last_1_WrapperStruct0_var_1_13)) ? ((last_1_WrapperStruct0_var_1_13 < (last_1_WrapperStruct0_var_1_13 - last_1_WrapperStruct0_var_1_13)) ? ((last_1_WrapperStruct0_var_1_13 != (((((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13))) < 0 ) ? -((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13))) : ((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13)))))) ? (WrapperStruct0.var_1_1 == ((unsigned short int) last_1_WrapperStruct0_var_1_13)) : 1) : 1) : (WrapperStruct0.var_1_1 == ((unsigned short int) last_1_WrapperStruct0_var_1_13))) && ((((((WrapperStruct0.var_1_8) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_9))) <= WrapperStruct0.var_1_10) ? ((last_1_WrapperStruct0_var_1_7 && (WrapperStruct0.var_1_1 >= WrapperStruct0.var_1_1)) ? (WrapperStruct0.var_1_7 == ((unsigned char) 0)) : 1) : (WrapperStruct0.var_1_7 == ((unsigned char) WrapperStruct0.var_1_12))) [L94] EXPR WrapperStruct0.var_1_8 [L94] EXPR WrapperStruct0.var_1_9 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L94] EXPR ((WrapperStruct0.var_1_8) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_9) [L94] EXPR WrapperStruct0.var_1_8 [L94] EXPR ((WrapperStruct0.var_1_8) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_9) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L94] EXPR WrapperStruct0.var_1_10 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L94] EXPR (((((WrapperStruct0.var_1_8) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_9))) <= WrapperStruct0.var_1_10) ? ((last_1_WrapperStruct0_var_1_7 && (WrapperStruct0.var_1_1 >= WrapperStruct0.var_1_1)) ? (WrapperStruct0.var_1_7 == ((unsigned char) 0)) : 1) : (WrapperStruct0.var_1_7 == ((unsigned char) WrapperStruct0.var_1_12)) [L94] EXPR WrapperStruct0.var_1_7 [L94] EXPR WrapperStruct0.var_1_12 [L94] EXPR (((((WrapperStruct0.var_1_8) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_9))) <= WrapperStruct0.var_1_10) ? ((last_1_WrapperStruct0_var_1_7 && (WrapperStruct0.var_1_1 >= WrapperStruct0.var_1_1)) ? (WrapperStruct0.var_1_7 == ((unsigned char) 0)) : 1) : (WrapperStruct0.var_1_7 == ((unsigned char) WrapperStruct0.var_1_12)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L94] EXPR (((last_1_WrapperStruct0_var_1_13 + ((((last_1_WrapperStruct0_var_1_13) > (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13)))) < (last_1_WrapperStruct0_var_1_13 * last_1_WrapperStruct0_var_1_13)) ? ((last_1_WrapperStruct0_var_1_13 < (last_1_WrapperStruct0_var_1_13 - last_1_WrapperStruct0_var_1_13)) ? ((last_1_WrapperStruct0_var_1_13 != (((((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13))) < 0 ) ? -((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13))) : ((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13)))))) ? (WrapperStruct0.var_1_1 == ((unsigned short int) last_1_WrapperStruct0_var_1_13)) : 1) : 1) : (WrapperStruct0.var_1_1 == ((unsigned short int) last_1_WrapperStruct0_var_1_13))) && ((((((WrapperStruct0.var_1_8) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_9))) <= WrapperStruct0.var_1_10) ? ((last_1_WrapperStruct0_var_1_7 && (WrapperStruct0.var_1_1 >= WrapperStruct0.var_1_1)) ? (WrapperStruct0.var_1_7 == ((unsigned char) 0)) : 1) : (WrapperStruct0.var_1_7 == ((unsigned char) WrapperStruct0.var_1_12))) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L94] EXPR ((((last_1_WrapperStruct0_var_1_13 + ((((last_1_WrapperStruct0_var_1_13) > (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13)))) < (last_1_WrapperStruct0_var_1_13 * last_1_WrapperStruct0_var_1_13)) ? ((last_1_WrapperStruct0_var_1_13 < (last_1_WrapperStruct0_var_1_13 - last_1_WrapperStruct0_var_1_13)) ? ((last_1_WrapperStruct0_var_1_13 != (((((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13))) < 0 ) ? -((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13))) : ((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13)))))) ? (WrapperStruct0.var_1_1 == ((unsigned short int) last_1_WrapperStruct0_var_1_13)) : 1) : 1) : (WrapperStruct0.var_1_1 == ((unsigned short int) last_1_WrapperStruct0_var_1_13))) && ((((((WrapperStruct0.var_1_8) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_9))) <= WrapperStruct0.var_1_10) ? ((last_1_WrapperStruct0_var_1_7 && (WrapperStruct0.var_1_1 >= WrapperStruct0.var_1_1)) ? (WrapperStruct0.var_1_7 == ((unsigned char) 0)) : 1) : (WrapperStruct0.var_1_7 == ((unsigned char) WrapperStruct0.var_1_12)))) && (WrapperStruct0.var_1_12 ? (((WrapperStruct0.var_1_14 - WrapperStruct0.var_1_15) >= ((WrapperStruct0.var_1_8 + WrapperStruct0.var_1_10) + WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_13 == ((signed short int) ((((WrapperStruct0.var_1_1) > (WrapperStruct0.var_1_1)) ? (WrapperStruct0.var_1_1) : (WrapperStruct0.var_1_1))))) : (WrapperStruct0.var_1_13 == ((signed short int) WrapperStruct0.var_1_1))) : 1) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L94] EXPR ((((last_1_WrapperStruct0_var_1_13 + ((((last_1_WrapperStruct0_var_1_13) > (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13)))) < (last_1_WrapperStruct0_var_1_13 * last_1_WrapperStruct0_var_1_13)) ? ((last_1_WrapperStruct0_var_1_13 < (last_1_WrapperStruct0_var_1_13 - last_1_WrapperStruct0_var_1_13)) ? ((last_1_WrapperStruct0_var_1_13 != (((((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13))) < 0 ) ? -((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13))) : ((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13)))))) ? (WrapperStruct0.var_1_1 == ((unsigned short int) last_1_WrapperStruct0_var_1_13)) : 1) : 1) : (WrapperStruct0.var_1_1 == ((unsigned short int) last_1_WrapperStruct0_var_1_13))) && ((((((WrapperStruct0.var_1_8) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_9))) <= WrapperStruct0.var_1_10) ? ((last_1_WrapperStruct0_var_1_7 && (WrapperStruct0.var_1_1 >= WrapperStruct0.var_1_1)) ? (WrapperStruct0.var_1_7 == ((unsigned char) 0)) : 1) : (WrapperStruct0.var_1_7 == ((unsigned char) WrapperStruct0.var_1_12)))) && (WrapperStruct0.var_1_12 ? (((WrapperStruct0.var_1_14 - WrapperStruct0.var_1_15) >= ((WrapperStruct0.var_1_8 + WrapperStruct0.var_1_10) + WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_13 == ((signed short int) ((((WrapperStruct0.var_1_1) > (WrapperStruct0.var_1_1)) ? (WrapperStruct0.var_1_1) : (WrapperStruct0.var_1_1))))) : (WrapperStruct0.var_1_13 == ((signed short int) WrapperStruct0.var_1_1))) : 1) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L94-L95] return ((((last_1_WrapperStruct0_var_1_13 + ((((last_1_WrapperStruct0_var_1_13) > (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13)))) < (last_1_WrapperStruct0_var_1_13 * last_1_WrapperStruct0_var_1_13)) ? ((last_1_WrapperStruct0_var_1_13 < (last_1_WrapperStruct0_var_1_13 - last_1_WrapperStruct0_var_1_13)) ? ((last_1_WrapperStruct0_var_1_13 != (((((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13))) < 0 ) ? -((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13))) : ((((last_1_WrapperStruct0_var_1_13) < (last_1_WrapperStruct0_var_1_13)) ? (last_1_WrapperStruct0_var_1_13) : (last_1_WrapperStruct0_var_1_13)))))) ? (WrapperStruct0.var_1_1 == ((unsigned short int) last_1_WrapperStruct0_var_1_13)) : 1) : 1) : (WrapperStruct0.var_1_1 == ((unsigned short int) last_1_WrapperStruct0_var_1_13))) && ((((((WrapperStruct0.var_1_8) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_9))) <= WrapperStruct0.var_1_10) ? ((last_1_WrapperStruct0_var_1_7 && (WrapperStruct0.var_1_1 >= WrapperStruct0.var_1_1)) ? (WrapperStruct0.var_1_7 == ((unsigned char) 0)) : 1) : (WrapperStruct0.var_1_7 == ((unsigned char) WrapperStruct0.var_1_12)))) && (WrapperStruct0.var_1_12 ? (((WrapperStruct0.var_1_14 - WrapperStruct0.var_1_15) >= ((WrapperStruct0.var_1_8 + WrapperStruct0.var_1_10) + WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_13 == ((signed short int) ((((WrapperStruct0.var_1_1) > (WrapperStruct0.var_1_1)) ? (WrapperStruct0.var_1_1) : (WrapperStruct0.var_1_1))))) : (WrapperStruct0.var_1_13 == ((signed short int) WrapperStruct0.var_1_1))) : 1) ; [L104] RET, EXPR property() [L104] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct0={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] [L19] reach_error() VAL [WrapperStruct0={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct0_var_1_13=256, last_1_WrapperStruct0_var_1_7=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.2s, OverallIterations: 12, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 881 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 877 mSDsluCounter, 3691 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2346 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 988 IncrementalHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 1345 mSDtfsCounter, 988 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1102 GetRequests, 1042 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=242occurred in iteration=11, InterpolantAutomatonStates: 55, 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, 11 MinimizatonAttempts, 252 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1025 NumberOfCodeBlocks, 1025 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1086 ConstructedInterpolants, 0 QuantifiedInterpolants, 2357 SizeOfPredicates, 34 NumberOfNonLiveVariables, 3004 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 14 InterpolantComputations, 10 PerfectInterpolantSequences, 1122/1176 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 02:05:17,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6d3c7b5e20b9cb5aff7067fd2169333c3619ec19d2be169214693b588a238e0b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:05:19,969 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:05:20,053 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 02:05:20,060 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:05:20,060 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:05:20,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:05:20,090 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:05:20,091 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:05:20,092 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:05:20,093 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:05:20,093 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:05:20,094 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:05:20,095 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:05:20,095 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:05:20,096 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:05:20,097 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:05:20,097 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:05:20,098 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:05:20,098 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:05:20,099 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:05:20,099 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:05:20,100 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:05:20,100 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:05:20,100 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 02:05:20,101 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 02:05:20,101 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 02:05:20,102 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:05:20,102 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:05:20,103 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:05:20,103 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:05:20,103 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:05:20,104 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:05:20,104 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:05:20,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:05:20,105 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:05:20,105 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:05:20,105 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:05:20,106 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 02:05:20,106 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 02:05:20,106 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:05:20,106 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:05:20,107 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:05:20,107 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:05:20,107 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:05:20,108 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 02:05:20,108 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d3c7b5e20b9cb5aff7067fd2169333c3619ec19d2be169214693b588a238e0b [2023-11-29 02:05:20,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:05:20,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:05:20,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:05:20,455 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:05:20,455 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:05:20,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-21.i [2023-11-29 02:05:23,264 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:05:23,478 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:05:23,479 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-21.i [2023-11-29 02:05:23,487 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/data/fe0e346c5/b8e8bfdee28144fda3e5cf01299dac7c/FLAG276b8e240 [2023-11-29 02:05:23,501 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/data/fe0e346c5/b8e8bfdee28144fda3e5cf01299dac7c [2023-11-29 02:05:23,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:05:23,505 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:05:23,507 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:05:23,507 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:05:23,511 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:05:23,512 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:05:23" (1/1) ... [2023-11-29 02:05:23,513 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38c3e241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:23, skipping insertion in model container [2023-11-29 02:05:23,513 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:05:23" (1/1) ... [2023-11-29 02:05:23,542 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:05:23,696 WARN L240 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_04dbc8a2-9688-4af6-95cd-2f575a19af2f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-21.i[916,929] [2023-11-29 02:05:23,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:05:23,766 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:05:23,789 WARN L240 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_04dbc8a2-9688-4af6-95cd-2f575a19af2f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-21.i[916,929] [2023-11-29 02:05:23,828 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:05:23,880 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:05:23,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:23 WrapperNode [2023-11-29 02:05:23,884 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:05:23,886 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:05:23,886 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:05:23,886 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:05:23,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:23" (1/1) ... [2023-11-29 02:05:23,931 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:23" (1/1) ... [2023-11-29 02:05:23,970 INFO L138 Inliner]: procedures = 36, calls = 110, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 358 [2023-11-29 02:05:23,971 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:05:23,972 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:05:23,972 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:05:23,972 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:05:23,984 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:23" (1/1) ... [2023-11-29 02:05:23,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:23" (1/1) ... [2023-11-29 02:05:23,992 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:23" (1/1) ... [2023-11-29 02:05:24,013 INFO L175 MemorySlicer]: Split 91 memory accesses to 2 slices as follows [2, 89]. 98 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 9]. The 12 writes are split as follows [0, 12]. [2023-11-29 02:05:24,014 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:23" (1/1) ... [2023-11-29 02:05:24,014 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:23" (1/1) ... [2023-11-29 02:05:24,035 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:23" (1/1) ... [2023-11-29 02:05:24,041 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:23" (1/1) ... [2023-11-29 02:05:24,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:23" (1/1) ... [2023-11-29 02:05:24,049 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:23" (1/1) ... [2023-11-29 02:05:24,056 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:05:24,057 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:05:24,057 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:05:24,058 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:05:24,058 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:23" (1/1) ... [2023-11-29 02:05:24,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:05:24,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:05:24,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:05:24,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:05:24,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:05:24,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2023-11-29 02:05:24,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2023-11-29 02:05:24,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2023-11-29 02:05:24,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2023-11-29 02:05:24,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 02:05:24,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 02:05:24,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2023-11-29 02:05:24,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2023-11-29 02:05:24,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 02:05:24,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 02:05:24,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-11-29 02:05:24,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-11-29 02:05:24,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2023-11-29 02:05:24,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2023-11-29 02:05:24,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2023-11-29 02:05:24,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2023-11-29 02:05:24,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-11-29 02:05:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-11-29 02:05:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2023-11-29 02:05:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2023-11-29 02:05:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 02:05:24,133 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 02:05:24,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:05:24,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:05:24,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-11-29 02:05:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-11-29 02:05:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2023-11-29 02:05:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2023-11-29 02:05:24,257 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:05:24,259 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:05:37,480 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:05:37,520 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:05:37,520 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:05:37,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:05:37 BoogieIcfgContainer [2023-11-29 02:05:37,521 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:05:37,524 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:05:37,524 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:05:37,527 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:05:37,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:05:23" (1/3) ... [2023-11-29 02:05:37,528 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128ae949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:05:37, skipping insertion in model container [2023-11-29 02:05:37,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:05:23" (2/3) ... [2023-11-29 02:05:37,529 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128ae949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:05:37, skipping insertion in model container [2023-11-29 02:05:37,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:05:37" (3/3) ... [2023-11-29 02:05:37,530 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-21.i [2023-11-29 02:05:37,546 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:05:37,546 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 02:05:37,595 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:05:37,602 INFO L357 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4dffd329, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:05:37,602 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 02:05:37,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 79 states have (on average 1.5316455696202531) internal successors, (121), 80 states have internal predecessors, (121), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 02:05:37,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 02:05:37,617 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:05:37,617 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:05:37,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:05:37,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:05:37,622 INFO L85 PathProgramCache]: Analyzing trace with hash -735381027, now seen corresponding path program 1 times [2023-11-29 02:05:37,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:05:37,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301180505] [2023-11-29 02:05:37,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:37,634 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:05:37,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:05:37,636 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:05:37,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 02:05:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:05:37,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 02:05:37,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:05:38,000 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 02:05:38,001 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:05:38,001 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:05:38,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301180505] [2023-11-29 02:05:38,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1301180505] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:05:38,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:05:38,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:05:38,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469144265] [2023-11-29 02:05:38,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:05:38,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 02:05:38,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:05:38,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 02:05:38,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:05:38,035 INFO L87 Difference]: Start difference. First operand has 89 states, 79 states have (on average 1.5316455696202531) internal successors, (121), 80 states have internal predecessors, (121), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 02:05:38,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:05:38,090 INFO L93 Difference]: Finished difference Result 175 states and 275 transitions. [2023-11-29 02:05:38,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 02:05:38,093 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 75 [2023-11-29 02:05:38,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:05:38,102 INFO L225 Difference]: With dead ends: 175 [2023-11-29 02:05:38,102 INFO L226 Difference]: Without dead ends: 87 [2023-11-29 02:05:38,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:05:38,109 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:05:38,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:05:38,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-29 02:05:38,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-11-29 02:05:38,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 78 states have (on average 1.4871794871794872) internal successors, (116), 78 states have internal predecessors, (116), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 02:05:38,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 130 transitions. [2023-11-29 02:05:38,156 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 130 transitions. Word has length 75 [2023-11-29 02:05:38,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:05:38,156 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 130 transitions. [2023-11-29 02:05:38,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 02:05:38,157 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 130 transitions. [2023-11-29 02:05:38,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 02:05:38,160 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:05:38,160 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:05:38,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:05:38,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:05:38,361 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:05:38,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:05:38,362 INFO L85 PathProgramCache]: Analyzing trace with hash 2082953751, now seen corresponding path program 1 times [2023-11-29 02:05:38,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:05:38,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098723103] [2023-11-29 02:05:38,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:38,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:05:38,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:05:38,365 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:05:38,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 02:05:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:05:38,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:05:38,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:05:38,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-29 02:05:39,057 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:05:39,058 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:05:39,058 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:05:39,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2098723103] [2023-11-29 02:05:39,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2098723103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:05:39,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:05:39,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:05:39,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896735884] [2023-11-29 02:05:39,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:05:39,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:05:39,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:05:39,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:05:39,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:05:39,063 INFO L87 Difference]: Start difference. First operand 87 states and 130 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:05:42,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:05:44,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:05:49,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:05:50,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:05:54,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:05:57,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:06:00,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:06:04,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:06:04,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:06:04,515 INFO L93 Difference]: Finished difference Result 289 states and 431 transitions. [2023-11-29 02:06:04,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:06:04,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 75 [2023-11-29 02:06:04,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:06:04,519 INFO L225 Difference]: With dead ends: 289 [2023-11-29 02:06:04,519 INFO L226 Difference]: Without dead ends: 203 [2023-11-29 02:06:04,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:06:04,521 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 221 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 28 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:06:04,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 261 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 127 Invalid, 1 Unknown, 0 Unchecked, 25.4s Time] [2023-11-29 02:06:04,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-11-29 02:06:04,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 177. [2023-11-29 02:06:04,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 160 states have (on average 1.4625) internal successors, (234), 160 states have internal predecessors, (234), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 02:06:04,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 262 transitions. [2023-11-29 02:06:04,547 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 262 transitions. Word has length 75 [2023-11-29 02:06:04,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:06:04,547 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 262 transitions. [2023-11-29 02:06:04,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:06:04,548 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 262 transitions. [2023-11-29 02:06:04,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 02:06:04,550 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:06:04,550 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:06:04,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 02:06:04,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:06:04,751 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:06:04,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:06:04,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1726892820, now seen corresponding path program 1 times [2023-11-29 02:06:04,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:06:04,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909735853] [2023-11-29 02:06:04,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:04,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:06:04,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:06:04,754 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:06:04,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 02:06:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:06:05,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:06:05,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:06:05,087 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:06:05,087 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:06:05,087 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:06:05,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909735853] [2023-11-29 02:06:05,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1909735853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:06:05,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:06:05,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:06:05,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041315799] [2023-11-29 02:06:05,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:06:05,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:06:05,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:06:05,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:06:05,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:06:05,090 INFO L87 Difference]: Start difference. First operand 177 states and 262 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:06:05,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:06:05,320 INFO L93 Difference]: Finished difference Result 372 states and 551 transitions. [2023-11-29 02:06:05,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:06:05,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 78 [2023-11-29 02:06:05,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:06:05,323 INFO L225 Difference]: With dead ends: 372 [2023-11-29 02:06:05,323 INFO L226 Difference]: Without dead ends: 196 [2023-11-29 02:06:05,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:06:05,327 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 72 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:06:05,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 476 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:06:05,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-29 02:06:05,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 180. [2023-11-29 02:06:05,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 163 states have (on average 1.4478527607361964) internal successors, (236), 163 states have internal predecessors, (236), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 02:06:05,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 264 transitions. [2023-11-29 02:06:05,348 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 264 transitions. Word has length 78 [2023-11-29 02:06:05,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:06:05,349 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 264 transitions. [2023-11-29 02:06:05,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:06:05,350 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 264 transitions. [2023-11-29 02:06:05,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 02:06:05,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:06:05,352 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:06:05,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 02:06:05,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:06:05,561 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:06:05,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:06:05,562 INFO L85 PathProgramCache]: Analyzing trace with hash 2091097675, now seen corresponding path program 1 times [2023-11-29 02:06:05,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:06:05,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819447973] [2023-11-29 02:06:05,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:05,563 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:06:05,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:06:05,564 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:06:05,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 02:06:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:06:05,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:06:05,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:06:06,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 41 [2023-11-29 02:06:06,058 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 02:06:06,058 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:06:06,058 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:06:06,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819447973] [2023-11-29 02:06:06,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819447973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:06:06,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:06:06,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:06:06,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932051525] [2023-11-29 02:06:06,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:06:06,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:06:06,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:06:06,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:06:06,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:06:06,061 INFO L87 Difference]: Start difference. First operand 180 states and 264 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 02:06:08,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:06:11,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:06:13,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:06:16,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:06:17,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:06:17,139 INFO L93 Difference]: Finished difference Result 371 states and 545 transitions. [2023-11-29 02:06:17,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:06:17,140 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 82 [2023-11-29 02:06:17,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:06:17,142 INFO L225 Difference]: With dead ends: 371 [2023-11-29 02:06:17,142 INFO L226 Difference]: Without dead ends: 192 [2023-11-29 02:06:17,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:06:17,143 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 113 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:06:17,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 358 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2023-11-29 02:06:17,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-29 02:06:17,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 180. [2023-11-29 02:06:17,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 163 states have (on average 1.4355828220858895) internal successors, (234), 163 states have internal predecessors, (234), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 02:06:17,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 262 transitions. [2023-11-29 02:06:17,161 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 262 transitions. Word has length 82 [2023-11-29 02:06:17,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:06:17,161 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 262 transitions. [2023-11-29 02:06:17,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 02:06:17,161 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 262 transitions. [2023-11-29 02:06:17,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 02:06:17,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:06:17,163 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:06:17,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-29 02:06:17,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:06:17,363 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:06:17,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:06:17,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1614138991, now seen corresponding path program 1 times [2023-11-29 02:06:17,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:06:17,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [974571277] [2023-11-29 02:06:17,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:17,365 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:06:17,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:06:17,366 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:06:17,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-29 02:06:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:06:17,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:06:17,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:06:17,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 41 [2023-11-29 02:06:17,919 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 02:06:17,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:06:17,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:06:17,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [974571277] [2023-11-29 02:06:17,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [974571277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:06:17,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:06:17,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:06:17,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443423611] [2023-11-29 02:06:17,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:06:17,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:06:17,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:06:17,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:06:17,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:06:17,922 INFO L87 Difference]: Start difference. First operand 180 states and 262 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 02:06:19,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:06:22,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:06:25,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:06:28,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:06:28,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:06:28,929 INFO L93 Difference]: Finished difference Result 371 states and 541 transitions. [2023-11-29 02:06:28,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:06:28,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 84 [2023-11-29 02:06:28,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:06:28,931 INFO L225 Difference]: With dead ends: 371 [2023-11-29 02:06:28,931 INFO L226 Difference]: Without dead ends: 192 [2023-11-29 02:06:28,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:06:28,933 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 104 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:06:28,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 356 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2023-11-29 02:06:28,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-29 02:06:28,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 180. [2023-11-29 02:06:28,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 163 states have (on average 1.4233128834355828) internal successors, (232), 163 states have internal predecessors, (232), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 02:06:28,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 260 transitions. [2023-11-29 02:06:28,947 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 260 transitions. Word has length 84 [2023-11-29 02:06:28,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:06:28,948 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 260 transitions. [2023-11-29 02:06:28,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 02:06:28,948 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 260 transitions. [2023-11-29 02:06:28,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 02:06:28,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:06:28,949 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:06:28,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-29 02:06:29,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:06:29,152 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:06:29,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:06:29,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1863132427, now seen corresponding path program 1 times [2023-11-29 02:06:29,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:06:29,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386379529] [2023-11-29 02:06:29,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:29,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:06:29,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:06:29,154 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:06:29,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-29 02:06:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:06:29,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 02:06:29,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:06:29,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 02:06:29,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2023-11-29 02:06:29,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2023-11-29 02:06:30,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-29 02:06:30,205 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 53 proven. 12 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 02:06:30,207 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:06:30,782 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-29 02:06:30,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:06:30,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386379529] [2023-11-29 02:06:30,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386379529] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:06:30,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:06:30,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 16 [2023-11-29 02:06:30,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547009982] [2023-11-29 02:06:30,783 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:06:30,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 02:06:30,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:06:30,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 02:06:30,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:06:30,785 INFO L87 Difference]: Start difference. First operand 180 states and 260 transitions. Second operand has 16 states, 12 states have (on average 7.083333333333333) internal successors, (85), 16 states have internal predecessors, (85), 7 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (11), 3 states have call predecessors, (11), 7 states have call successors, (11) [2023-11-29 02:06:35,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:06:37,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:06:40,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:06:45,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:06:46,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:06:47,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:06:47,285 INFO L93 Difference]: Finished difference Result 345 states and 488 transitions. [2023-11-29 02:06:47,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:06:47,286 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 12 states have (on average 7.083333333333333) internal successors, (85), 16 states have internal predecessors, (85), 7 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (11), 3 states have call predecessors, (11), 7 states have call successors, (11) Word has length 86 [2023-11-29 02:06:47,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:06:47,288 INFO L225 Difference]: With dead ends: 345 [2023-11-29 02:06:47,288 INFO L226 Difference]: Without dead ends: 166 [2023-11-29 02:06:47,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 155 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2023-11-29 02:06:47,289 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 426 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 74 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:06:47,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 406 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 16.2s Time] [2023-11-29 02:06:47,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-11-29 02:06:47,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2023-11-29 02:06:47,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 145 states have (on average 1.3724137931034484) internal successors, (199), 145 states have internal predecessors, (199), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 02:06:47,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 227 transitions. [2023-11-29 02:06:47,303 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 227 transitions. Word has length 86 [2023-11-29 02:06:47,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:06:47,304 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 227 transitions. [2023-11-29 02:06:47,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 12 states have (on average 7.083333333333333) internal successors, (85), 16 states have internal predecessors, (85), 7 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (11), 3 states have call predecessors, (11), 7 states have call successors, (11) [2023-11-29 02:06:47,305 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 227 transitions. [2023-11-29 02:06:47,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 02:06:47,306 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:06:47,306 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:06:47,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-29 02:06:47,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:06:47,517 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:06:47,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:06:47,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1232146795, now seen corresponding path program 1 times [2023-11-29 02:06:47,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:06:47,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1067694361] [2023-11-29 02:06:47,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:47,518 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:06:47,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:06:47,519 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:06:47,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-29 02:06:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:06:48,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 02:06:48,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:06:48,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2023-11-29 02:06:48,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 24 [2023-11-29 02:06:48,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 24 [2023-11-29 02:06:49,064 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:06:49,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 42 [2023-11-29 02:06:49,289 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:06:49,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 46 [2023-11-29 02:06:49,700 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:06:49,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 40 [2023-11-29 02:06:49,840 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 56 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 02:06:49,840 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:06:50,085 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:06:50,085 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:06:50,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1067694361] [2023-11-29 02:06:50,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1067694361] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 02:06:50,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:06:50,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 18 [2023-11-29 02:06:50,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147369613] [2023-11-29 02:06:50,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:06:50,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:06:50,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:06:50,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:06:50,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:06:50,088 INFO L87 Difference]: Start difference. First operand 166 states and 227 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:06:52,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:06:56,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:06:59,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:07:02,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:07:06,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:07:10,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:07:13,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:07:17,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:07:18,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:07:19,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:07:19,491 INFO L93 Difference]: Finished difference Result 333 states and 459 transitions. [2023-11-29 02:07:19,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:07:19,492 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 87 [2023-11-29 02:07:19,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:07:19,494 INFO L225 Difference]: With dead ends: 333 [2023-11-29 02:07:19,494 INFO L226 Difference]: Without dead ends: 236 [2023-11-29 02:07:19,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 155 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2023-11-29 02:07:19,495 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 138 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:07:19,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 601 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 190 Invalid, 1 Unknown, 0 Unchecked, 29.3s Time] [2023-11-29 02:07:19,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-11-29 02:07:19,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 226. [2023-11-29 02:07:19,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 201 states have (on average 1.3781094527363185) internal successors, (277), 202 states have internal predecessors, (277), 17 states have call successors, (17), 7 states have call predecessors, (17), 7 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-29 02:07:19,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 311 transitions. [2023-11-29 02:07:19,505 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 311 transitions. Word has length 87 [2023-11-29 02:07:19,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:07:19,506 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 311 transitions. [2023-11-29 02:07:19,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:07:19,506 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 311 transitions. [2023-11-29 02:07:19,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 02:07:19,507 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:07:19,507 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:07:19,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-29 02:07:19,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:07:19,708 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:07:19,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:07:19,708 INFO L85 PathProgramCache]: Analyzing trace with hash -2015392960, now seen corresponding path program 1 times [2023-11-29 02:07:19,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:07:19,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457518649] [2023-11-29 02:07:19,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:07:19,709 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:07:19,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:07:19,710 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:07:19,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-29 02:07:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:07:20,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:07:20,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:07:20,138 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:07:20,139 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:07:20,139 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:07:20,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457518649] [2023-11-29 02:07:20,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457518649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:07:20,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:07:20,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:07:20,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889861360] [2023-11-29 02:07:20,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:07:20,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:07:20,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:07:20,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:07:20,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:07:20,140 INFO L87 Difference]: Start difference. First operand 226 states and 311 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:07:20,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:07:20,221 INFO L93 Difference]: Finished difference Result 236 states and 322 transitions. [2023-11-29 02:07:20,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:07:20,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 89 [2023-11-29 02:07:20,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:07:20,224 INFO L225 Difference]: With dead ends: 236 [2023-11-29 02:07:20,225 INFO L226 Difference]: Without dead ends: 234 [2023-11-29 02:07:20,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:07:20,225 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 10 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:07:20,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 467 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:07:20,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-11-29 02:07:20,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 232. [2023-11-29 02:07:20,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 207 states have (on average 1.3671497584541064) internal successors, (283), 208 states have internal predecessors, (283), 17 states have call successors, (17), 7 states have call predecessors, (17), 7 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-29 02:07:20,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 317 transitions. [2023-11-29 02:07:20,238 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 317 transitions. Word has length 89 [2023-11-29 02:07:20,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:07:20,238 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 317 transitions. [2023-11-29 02:07:20,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:07:20,239 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 317 transitions. [2023-11-29 02:07:20,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 02:07:20,239 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:07:20,240 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:07:20,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-29 02:07:20,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:07:20,440 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:07:20,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:07:20,441 INFO L85 PathProgramCache]: Analyzing trace with hash -996652139, now seen corresponding path program 1 times [2023-11-29 02:07:20,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:07:20,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1378177106] [2023-11-29 02:07:20,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:07:20,441 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:07:20,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:07:20,442 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:07:20,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-29 02:07:20,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:07:20,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:07:20,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:07:20,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-29 02:07:21,104 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:07:21,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:07:21,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:07:21,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1378177106] [2023-11-29 02:07:21,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1378177106] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:07:21,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:07:21,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:07:21,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590839246] [2023-11-29 02:07:21,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:07:21,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:07:21,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:07:21,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:07:21,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:07:21,107 INFO L87 Difference]: Start difference. First operand 232 states and 317 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:07:23,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:07:25,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:07:27,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:07:30,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:07:32,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:07:34,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:07:37,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:07:40,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:07:43,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:07:45,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:07:49,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:07:50,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:07:50,172 INFO L93 Difference]: Finished difference Result 570 states and 781 transitions. [2023-11-29 02:07:50,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:07:50,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 89 [2023-11-29 02:07:50,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:07:50,175 INFO L225 Difference]: With dead ends: 570 [2023-11-29 02:07:50,175 INFO L226 Difference]: Without dead ends: 406 [2023-11-29 02:07:50,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:07:50,176 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 208 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:07:50,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 448 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 207 Invalid, 1 Unknown, 0 Unchecked, 29.0s Time] [2023-11-29 02:07:50,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2023-11-29 02:07:50,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 331. [2023-11-29 02:07:50,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 296 states have (on average 1.3614864864864864) internal successors, (403), 297 states have internal predecessors, (403), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 02:07:50,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 451 transitions. [2023-11-29 02:07:50,199 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 451 transitions. Word has length 89 [2023-11-29 02:07:50,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:07:50,200 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 451 transitions. [2023-11-29 02:07:50,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:07:50,200 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 451 transitions. [2023-11-29 02:07:50,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 02:07:50,201 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:07:50,201 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:07:50,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-29 02:07:50,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:07:50,413 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:07:50,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:07:50,414 INFO L85 PathProgramCache]: Analyzing trace with hash -2017720493, now seen corresponding path program 1 times [2023-11-29 02:07:50,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:07:50,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252894288] [2023-11-29 02:07:50,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:07:50,414 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:07:50,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:07:50,415 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:07:50,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-29 02:07:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:07:50,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 02:07:50,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:07:51,789 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:07:51,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 253 treesize of output 73 [2023-11-29 02:07:53,245 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:07:53,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:07:53,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:07:53,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252894288] [2023-11-29 02:07:53,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [252894288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:07:53,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:07:53,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 02:07:53,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116665993] [2023-11-29 02:07:53,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:07:53,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:07:53,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:07:53,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:07:53,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:07:53,248 INFO L87 Difference]: Start difference. First operand 331 states and 451 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:07:57,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:07:59,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:08:04,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:08:08,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:08:11,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:08:15,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:08:16,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:08:20,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:08:24,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:08:27,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:08:29,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:08:31,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:31,377 INFO L93 Difference]: Finished difference Result 708 states and 971 transitions. [2023-11-29 02:08:31,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:08:31,379 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 89 [2023-11-29 02:08:31,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:31,382 INFO L225 Difference]: With dead ends: 708 [2023-11-29 02:08:31,382 INFO L226 Difference]: Without dead ends: 449 [2023-11-29 02:08:31,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:08:31,384 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 84 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:31,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 652 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 390 Invalid, 3 Unknown, 0 Unchecked, 37.7s Time] [2023-11-29 02:08:31,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-11-29 02:08:31,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 375. [2023-11-29 02:08:31,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 340 states have (on average 1.3588235294117648) internal successors, (462), 341 states have internal predecessors, (462), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 02:08:31,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 510 transitions. [2023-11-29 02:08:31,408 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 510 transitions. Word has length 89 [2023-11-29 02:08:31,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:31,409 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 510 transitions. [2023-11-29 02:08:31,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:08:31,409 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 510 transitions. [2023-11-29 02:08:31,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 02:08:31,410 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:31,410 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:08:31,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-11-29 02:08:31,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:08:31,611 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:08:31,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:31,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1337662123, now seen corresponding path program 1 times [2023-11-29 02:08:31,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:08:31,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157248421] [2023-11-29 02:08:31,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:31,612 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:08:31,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:08:31,613 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:08:31,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-29 02:08:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:32,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:08:32,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:08:32,372 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:08:32,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 202 treesize of output 58 [2023-11-29 02:08:32,489 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:08:32,489 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:08:32,489 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:08:32,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157248421] [2023-11-29 02:08:32,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157248421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:08:32,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:08:32,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:08:32,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32833896] [2023-11-29 02:08:32,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:08:32,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:08:32,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:08:32,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:08:32,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:08:32,491 INFO L87 Difference]: Start difference. First operand 375 states and 510 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:08:35,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:08:37,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:08:40,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:08:46,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:08:49,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:08:52,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:08:56,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:08:59,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:09:02,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:09:04,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:09:05,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:09:05,000 INFO L93 Difference]: Finished difference Result 783 states and 1069 transitions. [2023-11-29 02:09:05,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:09:05,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 89 [2023-11-29 02:09:05,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:09:05,005 INFO L225 Difference]: With dead ends: 783 [2023-11-29 02:09:05,005 INFO L226 Difference]: Without dead ends: 487 [2023-11-29 02:09:05,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:09:05,006 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 74 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:09:05,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 368 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 158 Invalid, 1 Unknown, 0 Unchecked, 32.3s Time] [2023-11-29 02:09:05,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2023-11-29 02:09:05,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 390. [2023-11-29 02:09:05,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 355 states have (on average 1.3492957746478873) internal successors, (479), 356 states have internal predecessors, (479), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 02:09:05,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 527 transitions. [2023-11-29 02:09:05,030 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 527 transitions. Word has length 89 [2023-11-29 02:09:05,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:09:05,030 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 527 transitions. [2023-11-29 02:09:05,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:09:05,030 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 527 transitions. [2023-11-29 02:09:05,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 02:09:05,031 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:09:05,031 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:09:05,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-11-29 02:09:05,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:09:05,232 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:09:05,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:09:05,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1459598353, now seen corresponding path program 1 times [2023-11-29 02:09:05,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:09:05,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513072483] [2023-11-29 02:09:05,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:09:05,233 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:09:05,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:09:05,234 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:09:05,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-29 02:09:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:09:05,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:09:05,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:09:06,059 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:09:06,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 203 treesize of output 59 [2023-11-29 02:09:06,221 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:09:06,221 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:09:06,221 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:09:06,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513072483] [2023-11-29 02:09:06,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513072483] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:09:06,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:09:06,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:09:06,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491462363] [2023-11-29 02:09:06,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:09:06,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:09:06,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:09:06,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:09:06,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:09:06,223 INFO L87 Difference]: Start difference. First operand 390 states and 527 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:09:09,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:09:13,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:09:16,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:09:19,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:09:23,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:09:25,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:09:28,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:09:29,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:09:34,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:09:37,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:09:37,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:09:37,698 INFO L93 Difference]: Finished difference Result 795 states and 1080 transitions. [2023-11-29 02:09:37,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:09:37,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 89 [2023-11-29 02:09:37,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:09:37,703 INFO L225 Difference]: With dead ends: 795 [2023-11-29 02:09:37,703 INFO L226 Difference]: Without dead ends: 487 [2023-11-29 02:09:37,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:09:37,705 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 73 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:09:37,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 438 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 176 Invalid, 2 Unknown, 0 Unchecked, 31.2s Time] [2023-11-29 02:09:37,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2023-11-29 02:09:37,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 390. [2023-11-29 02:09:37,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 355 states have (on average 1.3408450704225352) internal successors, (476), 356 states have internal predecessors, (476), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 02:09:37,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 524 transitions. [2023-11-29 02:09:37,731 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 524 transitions. Word has length 89 [2023-11-29 02:09:37,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:09:37,732 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 524 transitions. [2023-11-29 02:09:37,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:09:37,732 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 524 transitions. [2023-11-29 02:09:37,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 02:09:37,733 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:09:37,733 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:09:37,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-11-29 02:09:37,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:09:37,934 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:09:37,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:09:37,934 INFO L85 PathProgramCache]: Analyzing trace with hash 2139656723, now seen corresponding path program 1 times [2023-11-29 02:09:37,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:09:37,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523069021] [2023-11-29 02:09:37,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:09:37,935 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:09:37,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:09:37,936 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:09:37,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-29 02:09:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:09:38,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:09:38,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:09:38,886 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:09:38,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 202 treesize of output 58 [2023-11-29 02:09:39,045 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:09:39,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:09:39,046 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:09:39,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523069021] [2023-11-29 02:09:39,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523069021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:09:39,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:09:39,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:09:39,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985837918] [2023-11-29 02:09:39,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:09:39,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:09:39,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:09:39,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:09:39,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:09:39,048 INFO L87 Difference]: Start difference. First operand 390 states and 524 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:09:40,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:09:44,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:09:47,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:09:52,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:09:56,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:10:01,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:10:02,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:10:05,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:10:09,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:10:13,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:10:16,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:10:17,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:10:17,164 INFO L93 Difference]: Finished difference Result 786 states and 1058 transitions. [2023-11-29 02:10:17,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:10:17,166 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 89 [2023-11-29 02:10:17,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:10:17,169 INFO L225 Difference]: With dead ends: 786 [2023-11-29 02:10:17,169 INFO L226 Difference]: Without dead ends: 478 [2023-11-29 02:10:17,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:10:17,171 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 77 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:10:17,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 526 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 269 Invalid, 3 Unknown, 0 Unchecked, 38.0s Time] [2023-11-29 02:10:17,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2023-11-29 02:10:17,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 452. [2023-11-29 02:10:17,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 412 states have (on average 1.337378640776699) internal successors, (551), 415 states have internal predecessors, (551), 26 states have call successors, (26), 13 states have call predecessors, (26), 13 states have return successors, (26), 23 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 02:10:17,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 603 transitions. [2023-11-29 02:10:17,206 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 603 transitions. Word has length 89 [2023-11-29 02:10:17,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:10:17,207 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 603 transitions. [2023-11-29 02:10:17,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:10:17,207 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 603 transitions. [2023-11-29 02:10:17,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 02:10:17,208 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:10:17,209 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:10:17,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-11-29 02:10:17,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:10:17,409 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:10:17,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:10:17,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1244496239, now seen corresponding path program 1 times [2023-11-29 02:10:17,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:10:17,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646133479] [2023-11-29 02:10:17,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:10:17,410 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:10:17,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:10:17,411 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:10:17,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-29 02:10:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:10:17,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:10:17,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:10:17,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-29 02:10:18,192 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:10:18,192 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:10:18,192 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:10:18,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646133479] [2023-11-29 02:10:18,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [646133479] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:10:18,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:10:18,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:10:18,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857065377] [2023-11-29 02:10:18,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:10:18,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:10:18,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:10:18,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:10:18,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:10:18,194 INFO L87 Difference]: Start difference. First operand 452 states and 603 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:10:21,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:10:23,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:10:26,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:10:30,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:10:33,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:10:35,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:10:37,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:10:39,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:10:43,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:10:47,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:10:49,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:10:52,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:10:56,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:10:58,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:11:01,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:11:05,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:11:09,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:11:11,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:11:11,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:11,929 INFO L93 Difference]: Finished difference Result 1041 states and 1394 transitions. [2023-11-29 02:11:11,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:11:11,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 90 [2023-11-29 02:11:11,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:11,933 INFO L225 Difference]: With dead ends: 1041 [2023-11-29 02:11:11,933 INFO L226 Difference]: Without dead ends: 675 [2023-11-29 02:11:11,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:11:11,934 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 221 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 31 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:11,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 497 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 227 Invalid, 4 Unknown, 0 Unchecked, 53.6s Time] [2023-11-29 02:11:11,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2023-11-29 02:11:11,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 514. [2023-11-29 02:11:11,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 474 states have (on average 1.3291139240506329) internal successors, (630), 477 states have internal predecessors, (630), 26 states have call successors, (26), 13 states have call predecessors, (26), 13 states have return successors, (26), 23 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 02:11:11,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 682 transitions. [2023-11-29 02:11:11,961 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 682 transitions. Word has length 90 [2023-11-29 02:11:11,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:11,962 INFO L495 AbstractCegarLoop]: Abstraction has 514 states and 682 transitions. [2023-11-29 02:11:11,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:11:11,962 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 682 transitions. [2023-11-29 02:11:11,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 02:11:11,963 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:11,963 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:11,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-11-29 02:11:12,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:11:12,164 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:11:12,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:12,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1373784495, now seen corresponding path program 1 times [2023-11-29 02:11:12,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:11:12,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1153816668] [2023-11-29 02:11:12,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:12,165 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:11:12,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:11:12,165 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:11:12,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-29 02:11:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:12,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:11:12,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:12,633 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:11:12,633 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:11:12,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:11:12,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1153816668] [2023-11-29 02:11:12,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1153816668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:11:12,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:11:12,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:11:12,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676528467] [2023-11-29 02:11:12,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:11:12,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:11:12,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:11:12,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:11:12,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:11:12,636 INFO L87 Difference]: Start difference. First operand 514 states and 682 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:11:12,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:12,844 INFO L93 Difference]: Finished difference Result 1007 states and 1342 transitions. [2023-11-29 02:11:12,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:11:12,845 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 90 [2023-11-29 02:11:12,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:12,848 INFO L225 Difference]: With dead ends: 1007 [2023-11-29 02:11:12,848 INFO L226 Difference]: Without dead ends: 579 [2023-11-29 02:11:12,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:11:12,850 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 55 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:12,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 585 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:11:12,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2023-11-29 02:11:12,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 531. [2023-11-29 02:11:12,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 491 states have (on average 1.3177189409368635) internal successors, (647), 494 states have internal predecessors, (647), 26 states have call successors, (26), 13 states have call predecessors, (26), 13 states have return successors, (26), 23 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 02:11:12,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 699 transitions. [2023-11-29 02:11:12,877 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 699 transitions. Word has length 90 [2023-11-29 02:11:12,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:12,878 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 699 transitions. [2023-11-29 02:11:12,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:11:12,878 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 699 transitions. [2023-11-29 02:11:12,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-29 02:11:12,879 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:12,879 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:12,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-11-29 02:11:13,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:11:13,080 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:11:13,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:13,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1290181806, now seen corresponding path program 1 times [2023-11-29 02:11:13,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:11:13,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239853811] [2023-11-29 02:11:13,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:13,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:11:13,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:11:13,082 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:11:13,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-29 02:11:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:13,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 02:11:14,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:14,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 12 [2023-11-29 02:11:14,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2023-11-29 02:11:18,171 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:11:18,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 45 [2023-11-29 02:11:26,460 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:11:26,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 61 [2023-11-29 02:11:26,960 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:11:26,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 68 treesize of output 64 [2023-11-29 02:11:27,328 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:11:27,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 68 treesize of output 64 [2023-11-29 02:11:27,755 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:11:27,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 68 treesize of output 75 [2023-11-29 02:11:27,978 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:11:27,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 79 [2023-11-29 02:11:28,467 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:11:28,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 105 treesize of output 51 [2023-11-29 02:11:28,576 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 02:11:28,576 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:11:28,577 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:11:28,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239853811] [2023-11-29 02:11:28,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239853811] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:11:28,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:11:28,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 02:11:28,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475462605] [2023-11-29 02:11:28,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:11:28,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:11:28,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:11:28,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:11:28,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=78, Unknown=3, NotChecked=0, Total=110 [2023-11-29 02:11:28,578 INFO L87 Difference]: Start difference. First operand 531 states and 699 transitions. Second operand has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 10 states have internal predecessors, (68), 4 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 02:11:32,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:11:35,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:11:39,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:11:43,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:11:45,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:11:49,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:11:53,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:11:56,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:12:00,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:12:03,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:12:06,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:12:10,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:12:15,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:12:18,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:12:19,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:19,234 INFO L93 Difference]: Finished difference Result 1480 states and 1949 transitions. [2023-11-29 02:12:19,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:12:19,234 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 10 states have internal predecessors, (68), 4 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 91 [2023-11-29 02:12:19,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:19,241 INFO L225 Difference]: With dead ends: 1480 [2023-11-29 02:12:19,241 INFO L226 Difference]: Without dead ends: 1478 [2023-11-29 02:12:19,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=115, Invalid=262, Unknown=3, NotChecked=0, Total=380 [2023-11-29 02:12:19,242 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 258 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 21 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:19,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 799 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 643 Invalid, 3 Unknown, 0 Unchecked, 49.9s Time] [2023-11-29 02:12:19,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2023-11-29 02:12:19,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1227. [2023-11-29 02:12:19,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 1159 states have (on average 1.3226919758412425) internal successors, (1533), 1165 states have internal predecessors, (1533), 45 states have call successors, (45), 22 states have call predecessors, (45), 22 states have return successors, (45), 39 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-29 02:12:19,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1623 transitions. [2023-11-29 02:12:19,306 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1623 transitions. Word has length 91 [2023-11-29 02:12:19,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:19,306 INFO L495 AbstractCegarLoop]: Abstraction has 1227 states and 1623 transitions. [2023-11-29 02:12:19,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 10 states have internal predecessors, (68), 4 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 02:12:19,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1623 transitions. [2023-11-29 02:12:19,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 02:12:19,307 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:19,307 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:19,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-11-29 02:12:19,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:12:19,508 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:12:19,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:19,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1274732887, now seen corresponding path program 1 times [2023-11-29 02:12:19,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:12:19,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858254277] [2023-11-29 02:12:19,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:19,510 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:12:19,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:12:19,511 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:12:19,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-29 02:12:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:20,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:12:20,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:20,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-29 02:12:20,277 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 02:12:20,277 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:12:20,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:12:20,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858254277] [2023-11-29 02:12:20,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858254277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:20,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:20,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:12:20,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718160339] [2023-11-29 02:12:20,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:20,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:12:20,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:12:20,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:12:20,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:12:20,279 INFO L87 Difference]: Start difference. First operand 1227 states and 1623 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:12:20,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:12:20,376 INFO L93 Difference]: Finished difference Result 2369 states and 3140 transitions. [2023-11-29 02:12:20,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:12:20,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 93 [2023-11-29 02:12:20,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:12:20,382 INFO L225 Difference]: With dead ends: 2369 [2023-11-29 02:12:20,382 INFO L226 Difference]: Without dead ends: 1227 [2023-11-29 02:12:20,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:12:20,384 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 1 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:12:20,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 239 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:12:20,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2023-11-29 02:12:20,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1227. [2023-11-29 02:12:20,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 1159 states have (on average 1.3183779119930974) internal successors, (1528), 1165 states have internal predecessors, (1528), 45 states have call successors, (45), 22 states have call predecessors, (45), 22 states have return successors, (45), 39 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-29 02:12:20,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1618 transitions. [2023-11-29 02:12:20,467 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1618 transitions. Word has length 93 [2023-11-29 02:12:20,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:12:20,468 INFO L495 AbstractCegarLoop]: Abstraction has 1227 states and 1618 transitions. [2023-11-29 02:12:20,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 02:12:20,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1618 transitions. [2023-11-29 02:12:20,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 02:12:20,469 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:12:20,469 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:12:20,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-11-29 02:12:20,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:12:20,670 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:12:20,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:12:20,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281497, now seen corresponding path program 1 times [2023-11-29 02:12:20,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:12:20,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [259356204] [2023-11-29 02:12:20,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:12:20,671 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:12:20,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:12:20,672 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:12:20,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-11-29 02:12:21,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:12:21,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 02:12:21,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:12:21,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2023-11-29 02:12:25,621 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:12:25,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 35 [2023-11-29 02:12:33,803 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:12:33,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 48 [2023-11-29 02:12:46,096 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:12:46,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 61 [2023-11-29 02:12:46,624 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:12:46,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 68 treesize of output 64 [2023-11-29 02:12:46,980 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:12:46,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 68 treesize of output 64 [2023-11-29 02:12:47,618 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:12:47,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 77 [2023-11-29 02:12:47,904 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:12:47,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 82 treesize of output 81 [2023-11-29 02:12:48,464 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:12:48,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 107 treesize of output 53 [2023-11-29 02:12:48,641 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 02:12:48,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:12:48,642 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:12:48,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [259356204] [2023-11-29 02:12:48,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [259356204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:12:48,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:12:48,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 02:12:48,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164562680] [2023-11-29 02:12:48,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:12:48,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:12:48,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:12:48,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:12:48,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=107, Unknown=6, NotChecked=0, Total=156 [2023-11-29 02:12:48,644 INFO L87 Difference]: Start difference. First operand 1227 states and 1618 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 4 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 02:12:52,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:12:54,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:13:00,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:13:03,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:13:08,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:13:13,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:13:16,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:13:19,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:13:21,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:13:26,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:13:30,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:13:34,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:13:35,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:13:36,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:13:36,212 INFO L93 Difference]: Finished difference Result 1271 states and 1665 transitions. [2023-11-29 02:13:36,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:13:36,213 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 4 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 93 [2023-11-29 02:13:36,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:13:36,217 INFO L225 Difference]: With dead ends: 1271 [2023-11-29 02:13:36,217 INFO L226 Difference]: Without dead ends: 1269 [2023-11-29 02:13:36,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=112, Invalid=262, Unknown=6, NotChecked=0, Total=380 [2023-11-29 02:13:36,218 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 262 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 27 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:13:36,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 915 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 766 Invalid, 4 Unknown, 0 Unchecked, 46.9s Time] [2023-11-29 02:13:36,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2023-11-29 02:13:36,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 979. [2023-11-29 02:13:36,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 911 states have (on average 1.3172338090010978) internal successors, (1200), 917 states have internal predecessors, (1200), 45 states have call successors, (45), 22 states have call predecessors, (45), 22 states have return successors, (45), 39 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-29 02:13:36,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1290 transitions. [2023-11-29 02:13:36,292 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1290 transitions. Word has length 93 [2023-11-29 02:13:36,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:13:36,293 INFO L495 AbstractCegarLoop]: Abstraction has 979 states and 1290 transitions. [2023-11-29 02:13:36,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 4 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 02:13:36,293 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1290 transitions. [2023-11-29 02:13:36,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 02:13:36,294 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:13:36,294 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:13:36,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-11-29 02:13:36,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:13:36,496 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:13:36,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:13:36,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1575455321, now seen corresponding path program 1 times [2023-11-29 02:13:36,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:13:36,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [627287393] [2023-11-29 02:13:36,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:13:36,497 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:13:36,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:13:36,498 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:13:36,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-11-29 02:13:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:13:37,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 02:13:37,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:13:37,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 32 [2023-11-29 02:13:41,508 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:13:41,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 58 [2023-11-29 02:13:49,876 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:13:49,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 74 [2023-11-29 02:14:02,360 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:14:02,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 73 treesize of output 87 [2023-11-29 02:14:03,131 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:14:03,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 88 treesize of output 90 [2023-11-29 02:14:03,686 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:14:03,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 88 treesize of output 90 [2023-11-29 02:14:04,493 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:14:04,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 88 treesize of output 101 [2023-11-29 02:14:04,812 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:14:04,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 103 treesize of output 104 [2023-11-29 02:14:05,643 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:14:05,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 103 treesize of output 43 [2023-11-29 02:14:05,854 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 02:14:05,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:14:05,854 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:14:05,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [627287393] [2023-11-29 02:14:05,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [627287393] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:14:05,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:14:05,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 02:14:05,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152993211] [2023-11-29 02:14:05,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:14:05,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:14:05,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:14:05,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:14:05,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=130, Unknown=6, NotChecked=0, Total=182 [2023-11-29 02:14:05,856 INFO L87 Difference]: Start difference. First operand 979 states and 1290 transitions. Second operand has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 4 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 02:14:08,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:14:10,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:14:15,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:14:18,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:14:23,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:14:27,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:14:33,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:14:36,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:14:40,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:14:43,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:14:48,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:14:50,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:14:50,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:14:50,802 INFO L93 Difference]: Finished difference Result 1505 states and 1967 transitions. [2023-11-29 02:14:50,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 02:14:50,803 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 4 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 93 [2023-11-29 02:14:50,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:14:50,810 INFO L225 Difference]: With dead ends: 1505 [2023-11-29 02:14:50,810 INFO L226 Difference]: Without dead ends: 1503 [2023-11-29 02:14:50,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 26.4s TimeCoverageRelationStatistics Valid=206, Invalid=490, Unknown=6, NotChecked=0, Total=702 [2023-11-29 02:14:50,811 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 385 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 35 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:14:50,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 903 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 755 Invalid, 1 Unknown, 0 Unchecked, 43.2s Time] [2023-11-29 02:14:50,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2023-11-29 02:14:50,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1237. [2023-11-29 02:14:50,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1237 states, 1169 states have (on average 1.3199315654405475) internal successors, (1543), 1175 states have internal predecessors, (1543), 45 states have call successors, (45), 22 states have call predecessors, (45), 22 states have return successors, (45), 39 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-29 02:14:50,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 1633 transitions. [2023-11-29 02:14:50,886 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 1633 transitions. Word has length 93 [2023-11-29 02:14:50,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:14:50,886 INFO L495 AbstractCegarLoop]: Abstraction has 1237 states and 1633 transitions. [2023-11-29 02:14:50,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 4 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 02:14:50,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 1633 transitions. [2023-11-29 02:14:50,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 02:14:50,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:14:50,888 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:14:50,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-11-29 02:14:51,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:14:51,088 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:14:51,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:14:51,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1224491872, now seen corresponding path program 1 times [2023-11-29 02:14:51,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:14:51,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [438305933] [2023-11-29 02:14:51,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:14:51,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:14:51,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:14:51,091 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:14:51,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-11-29 02:14:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:14:51,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-29 02:14:51,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:14:51,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 32 [2023-11-29 02:14:56,181 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:14:56,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 58 [2023-11-29 02:15:04,567 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:15:04,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 79 treesize of output 64 [2023-11-29 02:15:04,886 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:15:04,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 68 treesize of output 64 [2023-11-29 02:15:05,326 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:15:05,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 68 treesize of output 64 [2023-11-29 02:15:05,709 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:15:05,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 68 treesize of output 64 [2023-11-29 02:15:06,409 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:15:06,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 77 [2023-11-29 02:15:06,683 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:15:06,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 85 treesize of output 80 [2023-11-29 02:15:07,385 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:15:07,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 85 treesize of output 37 [2023-11-29 02:15:07,570 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 02:15:07,570 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:15:07,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:15:07,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [438305933] [2023-11-29 02:15:07,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [438305933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:15:07,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:15:07,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 02:15:07,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290372231] [2023-11-29 02:15:07,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:15:07,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:15:07,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:15:07,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:15:07,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=117, Unknown=3, NotChecked=0, Total=156 [2023-11-29 02:15:07,572 INFO L87 Difference]: Start difference. First operand 1237 states and 1633 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 02:15:12,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:15:14,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:15:17,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:15:22,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:15:25,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:15:29,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:15:35,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:15:38,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:15:40,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:15:43,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:15:48,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:15:54,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:15:58,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:15:59,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:15:59,505 INFO L93 Difference]: Finished difference Result 1286 states and 1685 transitions. [2023-11-29 02:15:59,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 02:15:59,506 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 95 [2023-11-29 02:15:59,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:15:59,512 INFO L225 Difference]: With dead ends: 1286 [2023-11-29 02:15:59,512 INFO L226 Difference]: Without dead ends: 1284 [2023-11-29 02:15:59,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=146, Invalid=403, Unknown=3, NotChecked=0, Total=552 [2023-11-29 02:15:59,513 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 186 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 18 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:15:59,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 1057 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 944 Invalid, 5 Unknown, 0 Unchecked, 50.6s Time] [2023-11-29 02:15:59,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2023-11-29 02:15:59,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 969. [2023-11-29 02:15:59,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 901 states have (on average 1.320754716981132) internal successors, (1190), 907 states have internal predecessors, (1190), 45 states have call successors, (45), 22 states have call predecessors, (45), 22 states have return successors, (45), 39 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-29 02:15:59,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1280 transitions. [2023-11-29 02:15:59,633 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1280 transitions. Word has length 95 [2023-11-29 02:15:59,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:15:59,634 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 1280 transitions. [2023-11-29 02:15:59,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 02:15:59,634 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1280 transitions. [2023-11-29 02:15:59,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-29 02:15:59,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:15:59,636 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:15:59,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-11-29 02:15:59,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:15:59,837 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:15:59,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:15:59,837 INFO L85 PathProgramCache]: Analyzing trace with hash -890648133, now seen corresponding path program 1 times [2023-11-29 02:15:59,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:15:59,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581995262] [2023-11-29 02:15:59,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:15:59,838 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:15:59,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:15:59,839 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:15:59,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-11-29 02:16:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:16:15,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 02:16:15,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:16:15,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 02:16:15,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2023-11-29 02:16:15,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2023-11-29 02:16:15,956 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:16:15,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 38 [2023-11-29 02:16:16,091 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:16:16,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 41 [2023-11-29 02:16:16,282 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:16:16,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 20 [2023-11-29 02:16:16,350 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 297 proven. 12 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 02:16:16,350 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:16:16,914 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 66 proven. 54 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2023-11-29 02:16:16,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:16:16,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581995262] [2023-11-29 02:16:16,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581995262] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:16:16,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:16:16,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 17 [2023-11-29 02:16:16,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626781559] [2023-11-29 02:16:16,915 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:16:16,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 02:16:16,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:16:16,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 02:16:16,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:16:16,916 INFO L87 Difference]: Start difference. First operand 969 states and 1280 transitions. Second operand has 17 states, 13 states have (on average 11.692307692307692) internal successors, (152), 17 states have internal predecessors, (152), 8 states have call successors, (25), 4 states have call predecessors, (25), 6 states have return successors, (25), 4 states have call predecessors, (25), 8 states have call successors, (25) [2023-11-29 02:16:21,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:16:24,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:16:25,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:16:28,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:16:33,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:16:37,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:16:38,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:16:43,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:16:47,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:16:48,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:16:48,152 INFO L93 Difference]: Finished difference Result 2601 states and 3457 transitions. [2023-11-29 02:16:48,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 02:16:48,153 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 11.692307692307692) internal successors, (152), 17 states have internal predecessors, (152), 8 states have call successors, (25), 4 states have call predecessors, (25), 6 states have return successors, (25), 4 states have call predecessors, (25), 8 states have call successors, (25) Word has length 168 [2023-11-29 02:16:48,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:16:48,160 INFO L225 Difference]: With dead ends: 2601 [2023-11-29 02:16:48,160 INFO L226 Difference]: Without dead ends: 1718 [2023-11-29 02:16:48,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 318 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=181, Invalid=521, Unknown=0, NotChecked=0, Total=702 [2023-11-29 02:16:48,162 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 503 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 72 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:16:48,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 579 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 651 Invalid, 3 Unknown, 0 Unchecked, 30.8s Time] [2023-11-29 02:16:48,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2023-11-29 02:16:48,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1406. [2023-11-29 02:16:48,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1322 states have (on average 1.3146747352496218) internal successors, (1738), 1334 states have internal predecessors, (1738), 55 states have call successors, (55), 28 states have call predecessors, (55), 28 states have return successors, (55), 43 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-29 02:16:48,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 1848 transitions. [2023-11-29 02:16:48,258 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 1848 transitions. Word has length 168 [2023-11-29 02:16:48,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:16:48,259 INFO L495 AbstractCegarLoop]: Abstraction has 1406 states and 1848 transitions. [2023-11-29 02:16:48,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 11.692307692307692) internal successors, (152), 17 states have internal predecessors, (152), 8 states have call successors, (25), 4 states have call predecessors, (25), 6 states have return successors, (25), 4 states have call predecessors, (25), 8 states have call successors, (25) [2023-11-29 02:16:48,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 1848 transitions. [2023-11-29 02:16:48,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-29 02:16:48,262 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:16:48,262 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:16:48,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2023-11-29 02:16:48,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:16:48,463 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:16:48,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:16:48,464 INFO L85 PathProgramCache]: Analyzing trace with hash -408806551, now seen corresponding path program 1 times [2023-11-29 02:16:48,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:16:48,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867425484] [2023-11-29 02:16:48,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:16:48,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:16:48,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:16:48,466 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:16:48,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04dbc8a2-9688-4af6-95cd-2f575a19af2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-11-29 02:16:50,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:16:50,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 02:16:50,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:16:50,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 32 [2023-11-29 02:16:54,396 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:16:54,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 38 [2023-11-29 02:16:54,578 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:16:54,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 48 [2023-11-29 02:17:02,871 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:17:02,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 61 [2023-11-29 02:17:03,369 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:17:03,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 68 treesize of output 64 [2023-11-29 02:17:03,727 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:17:03,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 68 treesize of output 64 [2023-11-29 02:17:04,243 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:17:04,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 68 treesize of output 75 [2023-11-29 02:17:04,498 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:17:04,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 83 treesize of output 78 [2023-11-29 02:17:05,364 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:17:05,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 74 treesize of output 30 [2023-11-29 02:17:05,607 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 72 proven. 230 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 02:17:05,607 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:17:17,411 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 15 proven. 35 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 02:17:17,411 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:17:17,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867425484] [2023-11-29 02:17:17,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867425484] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:17:17,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:17:17,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 11 [2023-11-29 02:17:17,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738138580] [2023-11-29 02:17:17,411 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:17:17,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:17:17,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:17:17,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:17:17,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=71, Unknown=3, NotChecked=0, Total=110 [2023-11-29 02:17:17,413 INFO L87 Difference]: Start difference. First operand 1406 states and 1848 transitions. Second operand has 11 states, 11 states have (on average 18.09090909090909) internal successors, (199), 11 states have internal predecessors, (199), 6 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2023-11-29 02:17:20,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:17:22,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:17:24,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:17:26,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:17:28,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:17:30,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:17:34,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:17:38,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:17:45,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:17:47,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:17:50,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:17:54,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:17:57,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:18:06,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:18:10,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:18:15,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:18:19,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:18:22,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:18:24,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:18:28,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:18:33,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:18:35,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:18:37,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:18:39,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:18:44,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:18:48,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:18:51,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:18:53,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:18:56,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:19:01,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:19:02,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:19:04,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:19:06,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:19:08,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:19:10,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:19:14,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:19:18,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:19:21,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:19:26,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:19:29,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:19:34,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:19:38,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:19:40,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:19:43,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:19:45,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:19:48,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:19:50,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:19:52,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 02:19:55,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []