./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-28.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_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/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_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-28.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/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_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/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 19cc8c12b97d00c18bd753d2c40678eb07734cfb5a01e7b7c6c980ae83e69a6f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:46:11,875 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:46:11,947 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-28 23:46:11,951 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:46:11,952 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:46:11,977 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:46:11,977 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:46:11,978 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:46:11,979 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:46:11,979 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:46:11,980 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:46:11,980 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:46:11,981 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:46:11,981 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:46:11,982 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:46:11,983 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:46:11,983 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:46:11,984 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:46:11,984 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:46:11,985 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:46:11,985 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:46:11,986 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:46:11,986 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:46:11,987 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:46:11,987 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:46:11,988 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:46:11,988 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:46:11,989 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:46:11,989 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:46:11,989 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 23:46:11,990 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:46:11,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:46:11,991 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:46:11,991 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:46:11,991 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 23:46:11,991 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:46:11,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 23:46:11,992 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:46:11,992 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:46:11,992 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 23:46:11,992 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:46:11,993 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:46:11,993 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_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19cc8c12b97d00c18bd753d2c40678eb07734cfb5a01e7b7c6c980ae83e69a6f [2023-11-28 23:46:12,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:46:12,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:46:12,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:46:12,230 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:46:12,230 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:46:12,231 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-28.i [2023-11-28 23:46:15,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:46:15,207 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:46:15,207 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-28.i [2023-11-28 23:46:15,217 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/data/c40e4bdc2/01a80b2f26514f2a80044cc10c7b9f6f/FLAG968c30d21 [2023-11-28 23:46:15,230 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/data/c40e4bdc2/01a80b2f26514f2a80044cc10c7b9f6f [2023-11-28 23:46:15,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:46:15,233 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:46:15,234 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:46:15,234 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:46:15,239 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:46:15,240 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:46:15" (1/1) ... [2023-11-28 23:46:15,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bc52e6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:46:15, skipping insertion in model container [2023-11-28 23:46:15,240 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:46:15" (1/1) ... [2023-11-28 23:46:15,272 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:46:15,390 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_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-28.i[919,932] [2023-11-28 23:46:15,479 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:46:15,493 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:46:15,504 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_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-28.i[919,932] [2023-11-28 23:46:15,546 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:46:15,560 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:46:15,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:46:15 WrapperNode [2023-11-28 23:46:15,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:46:15,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:46:15,562 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:46:15,562 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:46:15,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:46:15" (1/1) ... [2023-11-28 23:46:15,582 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:46:15" (1/1) ... [2023-11-28 23:46:15,633 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 226 [2023-11-28 23:46:15,633 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:46:15,633 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:46:15,634 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:46:15,634 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:46:15,642 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:46:15" (1/1) ... [2023-11-28 23:46:15,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:46:15" (1/1) ... [2023-11-28 23:46:15,648 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:46:15" (1/1) ... [2023-11-28 23:46:15,708 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-28 23:46:15,708 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:46:15" (1/1) ... [2023-11-28 23:46:15,708 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:46:15" (1/1) ... [2023-11-28 23:46:15,727 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:46:15" (1/1) ... [2023-11-28 23:46:15,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:46:15" (1/1) ... [2023-11-28 23:46:15,738 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:46:15" (1/1) ... [2023-11-28 23:46:15,741 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:46:15" (1/1) ... [2023-11-28 23:46:15,749 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:46:15,750 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:46:15,751 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:46:15,751 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:46:15,751 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:46:15" (1/1) ... [2023-11-28 23:46:15,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:46:15,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:46:15,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:46:15,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:46:15,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:46:15,813 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-28 23:46:15,813 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-28 23:46:15,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 23:46:15,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:46:15,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:46:15,888 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:46:15,890 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:46:16,304 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:46:16,331 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:46:16,331 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 23:46:16,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:46:16 BoogieIcfgContainer [2023-11-28 23:46:16,332 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:46:16,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:46:16,335 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:46:16,338 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:46:16,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:46:15" (1/3) ... [2023-11-28 23:46:16,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce18b15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:46:16, skipping insertion in model container [2023-11-28 23:46:16,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:46:15" (2/3) ... [2023-11-28 23:46:16,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce18b15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:46:16, skipping insertion in model container [2023-11-28 23:46:16,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:46:16" (3/3) ... [2023-11-28 23:46:16,341 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-28.i [2023-11-28 23:46:16,359 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:46:16,359 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 23:46:16,407 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:46:16,412 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;@34162712, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:46:16,412 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 23:46:16,416 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 60 states have (on average 1.5333333333333334) internal successors, (92), 61 states have internal predecessors, (92), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-28 23:46:16,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-28 23:46:16,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:46:16,432 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:46:16,433 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:46:16,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:46:16,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1078083678, now seen corresponding path program 1 times [2023-11-28 23:46:16,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:46:16,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938922439] [2023-11-28 23:46:16,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:16,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:46:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:46:16,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:46:16,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938922439] [2023-11-28 23:46:16,644 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-28 23:46:16,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278751108] [2023-11-28 23:46:16,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:16,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:46:16,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:46:16,646 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:46:16,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 23:46:16,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:46:16,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-28 23:46:16,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:46:16,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2023-11-28 23:46:16,878 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:46:16,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278751108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:46:16,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:46:16,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:46:16,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037963699] [2023-11-28 23:46:16,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:46:16,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 23:46:16,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:46:16,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 23:46:16,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:46:16,918 INFO L87 Difference]: Start difference. First operand has 89 states, 60 states have (on average 1.5333333333333334) internal successors, (92), 61 states have internal predecessors, (92), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) 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, (26), 2 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-28 23:46:16,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:46:16,961 INFO L93 Difference]: Finished difference Result 175 states and 312 transitions. [2023-11-28 23:46:16,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 23:46:16,964 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, (26), 2 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 172 [2023-11-28 23:46:16,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:46:16,972 INFO L225 Difference]: With dead ends: 175 [2023-11-28 23:46:16,972 INFO L226 Difference]: Without dead ends: 87 [2023-11-28 23:46:16,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:46:16,979 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:46:16,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 23:46:16,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-28 23:46:17,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-11-28 23:46:17,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 59 states have (on average 1.4745762711864407) internal successors, (87), 59 states have internal predecessors, (87), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-28 23:46:17,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 139 transitions. [2023-11-28 23:46:17,028 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 139 transitions. Word has length 172 [2023-11-28 23:46:17,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:46:17,029 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 139 transitions. [2023-11-28 23:46:17,029 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, (26), 2 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-28 23:46:17,029 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 139 transitions. [2023-11-28 23:46:17,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-28 23:46:17,033 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:46:17,034 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:46:17,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-28 23:46:17,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-28 23:46:17,235 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:46:17,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:46:17,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1308414486, now seen corresponding path program 1 times [2023-11-28 23:46:17,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:46:17,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079514147] [2023-11-28 23:46:17,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:17,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:46:17,298 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:46:17,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1383498039] [2023-11-28 23:46:17,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:17,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:46:17,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:46:17,300 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:46:17,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-28 23:46:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:46:17,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-28 23:46:17,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:46:19,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:46:19,878 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:46:19,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:46:19,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079514147] [2023-11-28 23:46:19,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:46:19,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383498039] [2023-11-28 23:46:19,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383498039] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:46:19,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:46:19,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-28 23:46:19,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439809914] [2023-11-28 23:46:19,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:46:19,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:46:19,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:46:19,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:46:19,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:46:19,883 INFO L87 Difference]: Start difference. First operand 87 states and 139 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:46:21,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:46:21,052 INFO L93 Difference]: Finished difference Result 389 states and 616 transitions. [2023-11-28 23:46:21,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-28 23:46:21,052 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 172 [2023-11-28 23:46:21,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:46:21,058 INFO L225 Difference]: With dead ends: 389 [2023-11-28 23:46:21,058 INFO L226 Difference]: Without dead ends: 303 [2023-11-28 23:46:21,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:46:21,062 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 397 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:46:21,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 636 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-28 23:46:21,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-11-28 23:46:21,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 191. [2023-11-28 23:46:21,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 127 states have (on average 1.4488188976377954) internal successors, (184), 128 states have internal predecessors, (184), 60 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-28 23:46:21,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 304 transitions. [2023-11-28 23:46:21,109 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 304 transitions. Word has length 172 [2023-11-28 23:46:21,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:46:21,110 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 304 transitions. [2023-11-28 23:46:21,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:46:21,110 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 304 transitions. [2023-11-28 23:46:21,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-28 23:46:21,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:46:21,115 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:46:21,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-28 23:46:21,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-28 23:46:21,317 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:46:21,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:46:21,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1975435560, now seen corresponding path program 1 times [2023-11-28 23:46:21,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:46:21,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352235401] [2023-11-28 23:46:21,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:21,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:46:21,362 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:46:21,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1715502527] [2023-11-28 23:46:21,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:21,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:46:21,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:46:21,364 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:46:21,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-28 23:46:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:46:21,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-28 23:46:21,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:46:26,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:46:26,137 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:46:26,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:46:26,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352235401] [2023-11-28 23:46:26,137 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:46:26,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715502527] [2023-11-28 23:46:26,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715502527] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:46:26,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:46:26,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 23:46:26,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131864102] [2023-11-28 23:46:26,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:46:26,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 23:46:26,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:46:26,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 23:46:26,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-11-28 23:46:26,140 INFO L87 Difference]: Start difference. First operand 191 states and 304 transitions. Second operand has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:46:27,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:46:27,467 INFO L93 Difference]: Finished difference Result 495 states and 775 transitions. [2023-11-28 23:46:27,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-28 23:46:27,468 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 172 [2023-11-28 23:46:27,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:46:27,472 INFO L225 Difference]: With dead ends: 495 [2023-11-28 23:46:27,472 INFO L226 Difference]: Without dead ends: 317 [2023-11-28 23:46:27,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=211, Invalid=439, Unknown=0, NotChecked=0, Total=650 [2023-11-28 23:46:27,476 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 422 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:46:27,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 819 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-28 23:46:27,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-11-28 23:46:27,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 205. [2023-11-28 23:46:27,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 141 states have (on average 1.446808510638298) internal successors, (204), 142 states have internal predecessors, (204), 60 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-28 23:46:27,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 324 transitions. [2023-11-28 23:46:27,510 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 324 transitions. Word has length 172 [2023-11-28 23:46:27,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:46:27,511 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 324 transitions. [2023-11-28 23:46:27,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:46:27,511 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 324 transitions. [2023-11-28 23:46:27,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-28 23:46:27,515 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:46:27,515 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:46:27,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-28 23:46:27,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:46:27,721 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:46:27,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:46:27,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1582408550, now seen corresponding path program 1 times [2023-11-28 23:46:27,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:46:27,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332402283] [2023-11-28 23:46:27,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:27,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:46:27,757 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:46:27,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1482087468] [2023-11-28 23:46:27,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:27,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:46:27,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:46:27,759 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:46:27,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-28 23:46:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:46:27,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 23:46:27,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:46:28,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:46:28,032 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:46:28,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:46:28,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332402283] [2023-11-28 23:46:28,032 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:46:28,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482087468] [2023-11-28 23:46:28,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482087468] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:46:28,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:46:28,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 23:46:28,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793850228] [2023-11-28 23:46:28,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:46:28,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 23:46:28,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:46:28,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 23:46:28,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:46:28,035 INFO L87 Difference]: Start difference. First operand 205 states and 324 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:46:28,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:46:28,291 INFO L93 Difference]: Finished difference Result 566 states and 898 transitions. [2023-11-28 23:46:28,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:46:28,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 172 [2023-11-28 23:46:28,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:46:28,297 INFO L225 Difference]: With dead ends: 566 [2023-11-28 23:46:28,297 INFO L226 Difference]: Without dead ends: 374 [2023-11-28 23:46:28,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:46:28,299 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 471 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:46:28,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 503 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 23:46:28,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2023-11-28 23:46:28,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 265. [2023-11-28 23:46:28,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 173 states have (on average 1.3872832369942196) internal successors, (240), 175 states have internal predecessors, (240), 86 states have call successors, (86), 5 states have call predecessors, (86), 5 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-11-28 23:46:28,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 412 transitions. [2023-11-28 23:46:28,338 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 412 transitions. Word has length 172 [2023-11-28 23:46:28,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:46:28,339 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 412 transitions. [2023-11-28 23:46:28,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:46:28,339 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 412 transitions. [2023-11-28 23:46:28,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-28 23:46:28,342 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:46:28,342 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:46:28,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-28 23:46:28,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:46:28,544 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:46:28,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:46:28,544 INFO L85 PathProgramCache]: Analyzing trace with hash 773061924, now seen corresponding path program 1 times [2023-11-28 23:46:28,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:46:28,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439510679] [2023-11-28 23:46:28,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:28,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:46:28,576 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:46:28,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1339168344] [2023-11-28 23:46:28,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:28,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:46:28,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:46:28,577 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:46:28,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-28 23:46:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:46:28,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-28 23:46:28,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:46:31,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:46:31,980 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:46:31,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:46:31,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439510679] [2023-11-28 23:46:31,980 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:46:31,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339168344] [2023-11-28 23:46:31,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339168344] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:46:31,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:46:31,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 23:46:31,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719779238] [2023-11-28 23:46:31,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:46:31,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 23:46:31,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:46:31,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 23:46:31,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-11-28 23:46:31,983 INFO L87 Difference]: Start difference. First operand 265 states and 412 transitions. Second operand has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:46:33,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:46:33,334 INFO L93 Difference]: Finished difference Result 653 states and 998 transitions. [2023-11-28 23:46:33,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-28 23:46:33,334 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 172 [2023-11-28 23:46:33,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:46:33,338 INFO L225 Difference]: With dead ends: 653 [2023-11-28 23:46:33,338 INFO L226 Difference]: Without dead ends: 401 [2023-11-28 23:46:33,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=211, Invalid=439, Unknown=0, NotChecked=0, Total=650 [2023-11-28 23:46:33,341 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 441 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:46:33,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 854 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-28 23:46:33,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-11-28 23:46:33,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 271. [2023-11-28 23:46:33,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 179 states have (on average 1.3854748603351956) internal successors, (248), 181 states have internal predecessors, (248), 86 states have call successors, (86), 5 states have call predecessors, (86), 5 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2023-11-28 23:46:33,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 420 transitions. [2023-11-28 23:46:33,376 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 420 transitions. Word has length 172 [2023-11-28 23:46:33,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:46:33,377 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 420 transitions. [2023-11-28 23:46:33,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:46:33,377 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 420 transitions. [2023-11-28 23:46:33,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-28 23:46:33,379 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:46:33,380 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:46:33,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-28 23:46:33,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:46:33,580 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:46:33,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:46:33,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1706689132, now seen corresponding path program 1 times [2023-11-28 23:46:33,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:46:33,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284849348] [2023-11-28 23:46:33,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:33,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:46:33,608 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:46:33,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [935103642] [2023-11-28 23:46:33,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:33,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:46:33,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:46:33,609 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:46:33,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-28 23:46:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:46:33,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-28 23:46:33,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:46:41,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:46:41,444 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:46:41,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:46:41,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284849348] [2023-11-28 23:46:41,445 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:46:41,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935103642] [2023-11-28 23:46:41,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935103642] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:46:41,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:46:41,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-28 23:46:41,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337836574] [2023-11-28 23:46:41,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:46:41,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:46:41,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:46:41,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:46:41,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:46:41,447 INFO L87 Difference]: Start difference. First operand 271 states and 420 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:46:42,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:46:42,764 INFO L93 Difference]: Finished difference Result 752 states and 1153 transitions. [2023-11-28 23:46:42,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-28 23:46:42,765 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 172 [2023-11-28 23:46:42,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:46:42,768 INFO L225 Difference]: With dead ends: 752 [2023-11-28 23:46:42,768 INFO L226 Difference]: Without dead ends: 494 [2023-11-28 23:46:42,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2023-11-28 23:46:42,769 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 293 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:46:42,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 745 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-28 23:46:42,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2023-11-28 23:46:42,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 355. [2023-11-28 23:46:42,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 254 states have (on average 1.4448818897637796) internal successors, (367), 257 states have internal predecessors, (367), 94 states have call successors, (94), 6 states have call predecessors, (94), 6 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-28 23:46:42,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 555 transitions. [2023-11-28 23:46:42,810 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 555 transitions. Word has length 172 [2023-11-28 23:46:42,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:46:42,811 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 555 transitions. [2023-11-28 23:46:42,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:46:42,811 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 555 transitions. [2023-11-28 23:46:42,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-28 23:46:42,813 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:46:42,813 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:46:42,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-28 23:46:43,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:46:43,014 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:46:43,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:46:43,014 INFO L85 PathProgramCache]: Analyzing trace with hash 504315496, now seen corresponding path program 1 times [2023-11-28 23:46:43,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:46:43,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599094679] [2023-11-28 23:46:43,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:43,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:46:43,035 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:46:43,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [910351771] [2023-11-28 23:46:43,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:43,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:46:43,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:46:43,037 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:46:43,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-28 23:46:43,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:46:43,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-28 23:46:43,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:46:51,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:46:51,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:46:51,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:46:51,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599094679] [2023-11-28 23:46:51,585 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:46:51,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910351771] [2023-11-28 23:46:51,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910351771] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:46:51,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:46:51,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:46:51,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952728773] [2023-11-28 23:46:51,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:46:51,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:46:51,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:46:51,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:46:51,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:46:51,587 INFO L87 Difference]: Start difference. First operand 355 states and 555 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:46:52,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:46:52,866 INFO L93 Difference]: Finished difference Result 831 states and 1283 transitions. [2023-11-28 23:46:52,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-28 23:46:52,866 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 172 [2023-11-28 23:46:52,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:46:52,870 INFO L225 Difference]: With dead ends: 831 [2023-11-28 23:46:52,870 INFO L226 Difference]: Without dead ends: 489 [2023-11-28 23:46:52,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2023-11-28 23:46:52,873 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 221 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:46:52,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 812 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 23:46:52,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-11-28 23:46:52,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 386. [2023-11-28 23:46:52,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 285 states have (on average 1.4596491228070176) internal successors, (416), 288 states have internal predecessors, (416), 94 states have call successors, (94), 6 states have call predecessors, (94), 6 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-28 23:46:52,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 604 transitions. [2023-11-28 23:46:52,917 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 604 transitions. Word has length 172 [2023-11-28 23:46:52,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:46:52,918 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 604 transitions. [2023-11-28 23:46:52,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:46:52,918 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 604 transitions. [2023-11-28 23:46:52,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-28 23:46:52,920 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:46:52,920 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:46:52,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-28 23:46:53,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-28 23:46:53,121 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:46:53,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:46:53,121 INFO L85 PathProgramCache]: Analyzing trace with hash -2126062936, now seen corresponding path program 1 times [2023-11-28 23:46:53,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:46:53,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389144223] [2023-11-28 23:46:53,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:53,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:46:53,145 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:46:53,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [310788755] [2023-11-28 23:46:53,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:53,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:46:53,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:46:53,147 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:46:53,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-28 23:46:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:46:53,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-28 23:46:53,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:46:53,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:46:53,482 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:46:53,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:46:53,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389144223] [2023-11-28 23:46:53,482 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:46:53,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310788755] [2023-11-28 23:46:53,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310788755] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:46:53,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:46:53,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:46:53,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670073811] [2023-11-28 23:46:53,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:46:53,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:46:53,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:46:53,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:46:53,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:46:53,484 INFO L87 Difference]: Start difference. First operand 386 states and 604 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:46:53,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:46:53,994 INFO L93 Difference]: Finished difference Result 960 states and 1471 transitions. [2023-11-28 23:46:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:46:53,995 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 172 [2023-11-28 23:46:53,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:46:53,999 INFO L225 Difference]: With dead ends: 960 [2023-11-28 23:46:53,999 INFO L226 Difference]: Without dead ends: 587 [2023-11-28 23:46:54,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2023-11-28 23:46:54,002 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 423 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 23:46:54,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 763 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 23:46:54,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2023-11-28 23:46:54,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 490. [2023-11-28 23:46:54,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 369 states have (on average 1.4417344173441735) internal successors, (532), 376 states have internal predecessors, (532), 110 states have call successors, (110), 10 states have call predecessors, (110), 10 states have return successors, (110), 103 states have call predecessors, (110), 110 states have call successors, (110) [2023-11-28 23:46:54,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 752 transitions. [2023-11-28 23:46:54,053 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 752 transitions. Word has length 172 [2023-11-28 23:46:54,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:46:54,053 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 752 transitions. [2023-11-28 23:46:54,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:46:54,054 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 752 transitions. [2023-11-28 23:46:54,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-28 23:46:54,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:46:54,056 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:46:54,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-28 23:46:54,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:46:54,260 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:46:54,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:46:54,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1157787110, now seen corresponding path program 1 times [2023-11-28 23:46:54,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:46:54,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911048874] [2023-11-28 23:46:54,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:54,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:46:54,288 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:46:54,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1950427934] [2023-11-28 23:46:54,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:54,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:46:54,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:46:54,289 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:46:54,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-28 23:46:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:46:54,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-28 23:46:54,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:46:58,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:46:58,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:46:58,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:46:58,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911048874] [2023-11-28 23:46:58,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:46:58,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950427934] [2023-11-28 23:46:58,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950427934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:46:58,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:46:58,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:46:58,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343693569] [2023-11-28 23:46:58,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:46:58,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:46:58,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:46:58,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:46:58,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:46:58,913 INFO L87 Difference]: Start difference. First operand 490 states and 752 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:46:59,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:46:59,730 INFO L93 Difference]: Finished difference Result 1079 states and 1646 transitions. [2023-11-28 23:46:59,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-28 23:46:59,731 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 172 [2023-11-28 23:46:59,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:46:59,734 INFO L225 Difference]: With dead ends: 1079 [2023-11-28 23:46:59,734 INFO L226 Difference]: Without dead ends: 602 [2023-11-28 23:46:59,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=277, Unknown=0, NotChecked=0, Total=420 [2023-11-28 23:46:59,736 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 383 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:46:59,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 831 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 23:46:59,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2023-11-28 23:46:59,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 517. [2023-11-28 23:46:59,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 396 states have (on average 1.4494949494949494) internal successors, (574), 403 states have internal predecessors, (574), 110 states have call successors, (110), 10 states have call predecessors, (110), 10 states have return successors, (110), 103 states have call predecessors, (110), 110 states have call successors, (110) [2023-11-28 23:46:59,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 794 transitions. [2023-11-28 23:46:59,789 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 794 transitions. Word has length 172 [2023-11-28 23:46:59,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:46:59,789 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 794 transitions. [2023-11-28 23:46:59,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:46:59,790 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 794 transitions. [2023-11-28 23:46:59,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-28 23:46:59,791 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:46:59,792 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:46:59,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-28 23:46:59,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-28 23:46:59,997 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:46:59,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:46:59,997 INFO L85 PathProgramCache]: Analyzing trace with hash -44586526, now seen corresponding path program 1 times [2023-11-28 23:46:59,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:46:59,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653525526] [2023-11-28 23:46:59,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:59,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:47:00,022 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:47:00,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [430581484] [2023-11-28 23:47:00,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:47:00,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:47:00,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:47:00,024 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:47:00,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-28 23:47:00,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:47:00,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-28 23:47:00,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:47:03,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:47:03,704 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:47:03,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:47:03,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653525526] [2023-11-28 23:47:03,705 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:47:03,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430581484] [2023-11-28 23:47:03,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430581484] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:47:03,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:47:03,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:47:03,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551667182] [2023-11-28 23:47:03,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:47:03,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:47:03,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:47:03,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:47:03,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:47:03,707 INFO L87 Difference]: Start difference. First operand 517 states and 794 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:47:04,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:47:04,397 INFO L93 Difference]: Finished difference Result 1106 states and 1686 transitions. [2023-11-28 23:47:04,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-28 23:47:04,398 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 172 [2023-11-28 23:47:04,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:47:04,401 INFO L225 Difference]: With dead ends: 1106 [2023-11-28 23:47:04,401 INFO L226 Difference]: Without dead ends: 602 [2023-11-28 23:47:04,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=277, Unknown=0, NotChecked=0, Total=420 [2023-11-28 23:47:04,403 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 378 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:47:04,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 835 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-28 23:47:04,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2023-11-28 23:47:04,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 529. [2023-11-28 23:47:04,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 408 states have (on average 1.446078431372549) internal successors, (590), 415 states have internal predecessors, (590), 110 states have call successors, (110), 10 states have call predecessors, (110), 10 states have return successors, (110), 103 states have call predecessors, (110), 110 states have call successors, (110) [2023-11-28 23:47:04,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 810 transitions. [2023-11-28 23:47:04,457 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 810 transitions. Word has length 172 [2023-11-28 23:47:04,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:47:04,457 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 810 transitions. [2023-11-28 23:47:04,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:47:04,458 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 810 transitions. [2023-11-28 23:47:04,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-28 23:47:04,459 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:47:04,460 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:47:04,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-28 23:47:04,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-28 23:47:04,666 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:47:04,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:47:04,667 INFO L85 PathProgramCache]: Analyzing trace with hash 889040682, now seen corresponding path program 1 times [2023-11-28 23:47:04,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:47:04,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092565492] [2023-11-28 23:47:04,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:47:04,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:47:04,691 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:47:04,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1300859400] [2023-11-28 23:47:04,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:47:04,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:47:04,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:47:04,693 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:47:04,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-28 23:47:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:47:04,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-28 23:47:04,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:47:10,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:47:10,782 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:47:10,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:47:10,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092565492] [2023-11-28 23:47:10,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:47:10,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300859400] [2023-11-28 23:47:10,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300859400] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:47:10,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:47:10,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:47:10,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671788251] [2023-11-28 23:47:10,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:47:10,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:47:10,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:47:10,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:47:10,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:47:10,784 INFO L87 Difference]: Start difference. First operand 529 states and 810 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:47:11,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:47:11,355 INFO L93 Difference]: Finished difference Result 1131 states and 1715 transitions. [2023-11-28 23:47:11,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-28 23:47:11,355 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 172 [2023-11-28 23:47:11,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:47:11,359 INFO L225 Difference]: With dead ends: 1131 [2023-11-28 23:47:11,359 INFO L226 Difference]: Without dead ends: 615 [2023-11-28 23:47:11,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2023-11-28 23:47:11,361 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 174 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:47:11,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 901 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 23:47:11,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2023-11-28 23:47:11,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 525. [2023-11-28 23:47:11,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 404 states have (on average 1.443069306930693) internal successors, (583), 411 states have internal predecessors, (583), 110 states have call successors, (110), 10 states have call predecessors, (110), 10 states have return successors, (110), 103 states have call predecessors, (110), 110 states have call successors, (110) [2023-11-28 23:47:11,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 803 transitions. [2023-11-28 23:47:11,408 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 803 transitions. Word has length 172 [2023-11-28 23:47:11,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:47:11,409 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 803 transitions. [2023-11-28 23:47:11,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:47:11,409 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 803 transitions. [2023-11-28 23:47:11,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-28 23:47:11,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:47:11,411 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:47:11,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-28 23:47:11,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-28 23:47:11,612 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:47:11,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:47:11,612 INFO L85 PathProgramCache]: Analyzing trace with hash -313332954, now seen corresponding path program 1 times [2023-11-28 23:47:11,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:47:11,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448954110] [2023-11-28 23:47:11,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:47:11,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:47:11,635 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:47:11,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [575463555] [2023-11-28 23:47:11,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:47:11,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:47:11,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:47:11,637 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:47:11,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-28 23:47:11,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:47:11,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-28 23:47:11,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:47:16,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:47:16,509 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:47:16,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:47:16,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448954110] [2023-11-28 23:47:16,509 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:47:16,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575463555] [2023-11-28 23:47:16,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575463555] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:47:16,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:47:16,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:47:16,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722664286] [2023-11-28 23:47:16,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:47:16,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:47:16,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:47:16,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:47:16,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:47:16,512 INFO L87 Difference]: Start difference. First operand 525 states and 803 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:47:17,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:47:17,265 INFO L93 Difference]: Finished difference Result 1127 states and 1705 transitions. [2023-11-28 23:47:17,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-28 23:47:17,265 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 172 [2023-11-28 23:47:17,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:47:17,269 INFO L225 Difference]: With dead ends: 1127 [2023-11-28 23:47:17,269 INFO L226 Difference]: Without dead ends: 615 [2023-11-28 23:47:17,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2023-11-28 23:47:17,271 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 211 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:47:17,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 962 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-28 23:47:17,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2023-11-28 23:47:17,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 487. [2023-11-28 23:47:17,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 366 states have (on average 1.4289617486338797) internal successors, (523), 373 states have internal predecessors, (523), 110 states have call successors, (110), 10 states have call predecessors, (110), 10 states have return successors, (110), 103 states have call predecessors, (110), 110 states have call successors, (110) [2023-11-28 23:47:17,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 743 transitions. [2023-11-28 23:47:17,307 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 743 transitions. Word has length 172 [2023-11-28 23:47:17,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:47:17,307 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 743 transitions. [2023-11-28 23:47:17,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:47:17,308 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 743 transitions. [2023-11-28 23:47:17,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-28 23:47:17,309 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:47:17,309 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:47:17,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-28 23:47:17,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:47:17,510 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:47:17,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:47:17,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1930540566, now seen corresponding path program 1 times [2023-11-28 23:47:17,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:47:17,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198616691] [2023-11-28 23:47:17,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:47:17,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:47:17,536 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:47:17,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [409715280] [2023-11-28 23:47:17,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:47:17,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:47:17,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:47:17,538 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:47:17,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-28 23:47:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:47:17,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-28 23:47:17,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:47:23,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:47:23,501 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:47:23,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:47:23,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198616691] [2023-11-28 23:47:23,502 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:47:23,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409715280] [2023-11-28 23:47:23,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409715280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:47:23,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:47:23,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-28 23:47:23,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206858649] [2023-11-28 23:47:23,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:47:23,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-28 23:47:23,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:47:23,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-28 23:47:23,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2023-11-28 23:47:23,504 INFO L87 Difference]: Start difference. First operand 487 states and 743 transitions. Second operand has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:47:25,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:47:25,158 INFO L93 Difference]: Finished difference Result 1091 states and 1651 transitions. [2023-11-28 23:47:25,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-28 23:47:25,158 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2023-11-28 23:47:25,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:47:25,163 INFO L225 Difference]: With dead ends: 1091 [2023-11-28 23:47:25,163 INFO L226 Difference]: Without dead ends: 617 [2023-11-28 23:47:25,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=259, Invalid=553, Unknown=0, NotChecked=0, Total=812 [2023-11-28 23:47:25,166 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 611 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:47:25,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 722 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-28 23:47:25,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2023-11-28 23:47:25,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 501. [2023-11-28 23:47:25,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 380 states have (on average 1.431578947368421) internal successors, (544), 387 states have internal predecessors, (544), 110 states have call successors, (110), 10 states have call predecessors, (110), 10 states have return successors, (110), 103 states have call predecessors, (110), 110 states have call successors, (110) [2023-11-28 23:47:25,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 764 transitions. [2023-11-28 23:47:25,219 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 764 transitions. Word has length 173 [2023-11-28 23:47:25,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:47:25,220 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 764 transitions. [2023-11-28 23:47:25,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:47:25,220 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 764 transitions. [2023-11-28 23:47:25,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-28 23:47:25,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:47:25,222 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:47:25,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-28 23:47:25,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:47:25,423 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:47:25,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:47:25,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1162053094, now seen corresponding path program 1 times [2023-11-28 23:47:25,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:47:25,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467106632] [2023-11-28 23:47:25,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:47:25,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:47:25,443 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:47:25,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1540231952] [2023-11-28 23:47:25,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:47:25,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:47:25,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:47:25,445 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:47:25,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-28 23:47:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:47:25,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-28 23:47:25,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:47:31,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:47:31,839 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:47:31,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:47:31,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467106632] [2023-11-28 23:47:31,839 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:47:31,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540231952] [2023-11-28 23:47:31,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540231952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:47:31,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:47:31,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-28 23:47:31,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888768981] [2023-11-28 23:47:31,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:47:31,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 23:47:31,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:47:31,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 23:47:31,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:47:31,841 INFO L87 Difference]: Start difference. First operand 501 states and 764 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:47:33,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:47:33,132 INFO L93 Difference]: Finished difference Result 1098 states and 1660 transitions. [2023-11-28 23:47:33,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-28 23:47:33,133 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2023-11-28 23:47:33,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:47:33,136 INFO L225 Difference]: With dead ends: 1098 [2023-11-28 23:47:33,136 INFO L226 Difference]: Without dead ends: 610 [2023-11-28 23:47:33,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=185, Invalid=367, Unknown=0, NotChecked=0, Total=552 [2023-11-28 23:47:33,137 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 424 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:47:33,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 782 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-28 23:47:33,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2023-11-28 23:47:33,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 501. [2023-11-28 23:47:33,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 380 states have (on average 1.431578947368421) internal successors, (544), 387 states have internal predecessors, (544), 110 states have call successors, (110), 10 states have call predecessors, (110), 10 states have return successors, (110), 103 states have call predecessors, (110), 110 states have call successors, (110) [2023-11-28 23:47:33,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 764 transitions. [2023-11-28 23:47:33,171 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 764 transitions. Word has length 173 [2023-11-28 23:47:33,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:47:33,171 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 764 transitions. [2023-11-28 23:47:33,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:47:33,171 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 764 transitions. [2023-11-28 23:47:33,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-28 23:47:33,173 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:47:33,173 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:47:33,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-28 23:47:33,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:47:33,373 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:47:33,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:47:33,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1084563052, now seen corresponding path program 1 times [2023-11-28 23:47:33,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:47:33,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772591223] [2023-11-28 23:47:33,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:47:33,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:47:33,397 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:47:33,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [292859916] [2023-11-28 23:47:33,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:47:33,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:47:33,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:47:33,399 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:47:33,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-28 23:47:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:47:33,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-28 23:47:33,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:47:43,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:47:43,485 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:47:43,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:47:43,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772591223] [2023-11-28 23:47:43,486 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:47:43,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292859916] [2023-11-28 23:47:43,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292859916] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:47:43,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:47:43,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:47:43,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56779394] [2023-11-28 23:47:43,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:47:43,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:47:43,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:47:43,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:47:43,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:47:43,488 INFO L87 Difference]: Start difference. First operand 501 states and 764 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:47:45,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:47:45,206 INFO L93 Difference]: Finished difference Result 1088 states and 1643 transitions. [2023-11-28 23:47:45,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-28 23:47:45,207 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2023-11-28 23:47:45,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:47:45,210 INFO L225 Difference]: With dead ends: 1088 [2023-11-28 23:47:45,210 INFO L226 Difference]: Without dead ends: 600 [2023-11-28 23:47:45,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2023-11-28 23:47:45,212 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 208 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:47:45,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 863 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-28 23:47:45,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2023-11-28 23:47:45,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 479. [2023-11-28 23:47:45,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 358 states have (on average 1.4162011173184357) internal successors, (507), 365 states have internal predecessors, (507), 110 states have call successors, (110), 10 states have call predecessors, (110), 10 states have return successors, (110), 103 states have call predecessors, (110), 110 states have call successors, (110) [2023-11-28 23:47:45,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 727 transitions. [2023-11-28 23:47:45,245 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 727 transitions. Word has length 173 [2023-11-28 23:47:45,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:47:45,245 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 727 transitions. [2023-11-28 23:47:45,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:47:45,246 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 727 transitions. [2023-11-28 23:47:45,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-28 23:47:45,247 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:47:45,247 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:47:45,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-28 23:47:45,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:47:45,448 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:47:45,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:47:45,448 INFO L85 PathProgramCache]: Analyzing trace with hash 370282024, now seen corresponding path program 1 times [2023-11-28 23:47:45,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:47:45,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394318147] [2023-11-28 23:47:45,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:47:45,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:47:45,469 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:47:45,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [573444128] [2023-11-28 23:47:45,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:47:45,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:47:45,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:47:45,470 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:47:45,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-28 23:47:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:47:45,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-28 23:47:45,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:47:54,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:47:54,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:47:54,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:47:54,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394318147] [2023-11-28 23:47:54,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:47:54,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573444128] [2023-11-28 23:47:54,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573444128] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:47:54,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:47:54,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:47:54,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216796730] [2023-11-28 23:47:54,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:47:54,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:47:54,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:47:54,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:47:54,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:47:54,498 INFO L87 Difference]: Start difference. First operand 479 states and 727 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:47:56,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:47:56,273 INFO L93 Difference]: Finished difference Result 1016 states and 1533 transitions. [2023-11-28 23:47:56,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-28 23:47:56,273 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2023-11-28 23:47:56,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:47:56,276 INFO L225 Difference]: With dead ends: 1016 [2023-11-28 23:47:56,276 INFO L226 Difference]: Without dead ends: 550 [2023-11-28 23:47:56,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=143, Invalid=277, Unknown=0, NotChecked=0, Total=420 [2023-11-28 23:47:56,278 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 481 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:47:56,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 703 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-28 23:47:56,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-11-28 23:47:56,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 473. [2023-11-28 23:47:56,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 352 states have (on average 1.4119318181818181) internal successors, (497), 359 states have internal predecessors, (497), 110 states have call successors, (110), 10 states have call predecessors, (110), 10 states have return successors, (110), 103 states have call predecessors, (110), 110 states have call successors, (110) [2023-11-28 23:47:56,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 717 transitions. [2023-11-28 23:47:56,310 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 717 transitions. Word has length 173 [2023-11-28 23:47:56,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:47:56,310 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 717 transitions. [2023-11-28 23:47:56,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:47:56,311 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 717 transitions. [2023-11-28 23:47:56,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-28 23:47:56,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:47:56,312 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:47:56,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-28 23:47:56,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-28 23:47:56,513 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:47:56,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:47:56,513 INFO L85 PathProgramCache]: Analyzing trace with hash -832091612, now seen corresponding path program 1 times [2023-11-28 23:47:56,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:47:56,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698028506] [2023-11-28 23:47:56,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:47:56,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:47:56,534 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:47:56,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033284258] [2023-11-28 23:47:56,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:47:56,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:47:56,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:47:56,535 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:47:56,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-28 23:47:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:47:56,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-28 23:47:56,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:48:04,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:48:04,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:48:04,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:48:04,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698028506] [2023-11-28 23:48:04,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:48:04,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033284258] [2023-11-28 23:48:04,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033284258] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:48:04,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:48:04,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 23:48:04,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177183003] [2023-11-28 23:48:04,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:48:04,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:48:04,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:48:04,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:48:04,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:48:04,073 INFO L87 Difference]: Start difference. First operand 473 states and 717 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:05,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:48:05,559 INFO L93 Difference]: Finished difference Result 1006 states and 1516 transitions. [2023-11-28 23:48:05,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-28 23:48:05,559 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2023-11-28 23:48:05,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:48:05,563 INFO L225 Difference]: With dead ends: 1006 [2023-11-28 23:48:05,563 INFO L226 Difference]: Without dead ends: 546 [2023-11-28 23:48:05,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=143, Invalid=277, Unknown=0, NotChecked=0, Total=420 [2023-11-28 23:48:05,565 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 419 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:48:05,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 705 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-28 23:48:05,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2023-11-28 23:48:05,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 459. [2023-11-28 23:48:05,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 338 states have (on average 1.4053254437869822) internal successors, (475), 345 states have internal predecessors, (475), 110 states have call successors, (110), 10 states have call predecessors, (110), 10 states have return successors, (110), 103 states have call predecessors, (110), 110 states have call successors, (110) [2023-11-28 23:48:05,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 695 transitions. [2023-11-28 23:48:05,613 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 695 transitions. Word has length 173 [2023-11-28 23:48:05,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:48:05,614 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 695 transitions. [2023-11-28 23:48:05,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:05,614 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 695 transitions. [2023-11-28 23:48:05,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-28 23:48:05,616 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:48:05,616 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:48:05,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-28 23:48:05,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-28 23:48:05,817 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:48:05,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:48:05,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1715555867, now seen corresponding path program 1 times [2023-11-28 23:48:05,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:48:05,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934882669] [2023-11-28 23:48:05,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:05,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:48:05,839 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:48:05,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1919729685] [2023-11-28 23:48:05,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:05,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:48:05,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:48:05,841 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:48:05,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-28 23:48:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:48:06,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-28 23:48:06,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:48:09,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:48:09,356 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:48:09,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:48:09,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934882669] [2023-11-28 23:48:09,357 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:48:09,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919729685] [2023-11-28 23:48:09,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919729685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:48:09,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:48:09,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-28 23:48:09,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040208908] [2023-11-28 23:48:09,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:48:09,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 23:48:09,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:48:09,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 23:48:09,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2023-11-28 23:48:09,359 INFO L87 Difference]: Start difference. First operand 459 states and 695 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:10,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:48:10,686 INFO L93 Difference]: Finished difference Result 783 states and 1176 transitions. [2023-11-28 23:48:10,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-28 23:48:10,687 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2023-11-28 23:48:10,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:48:10,691 INFO L225 Difference]: With dead ends: 783 [2023-11-28 23:48:10,691 INFO L226 Difference]: Without dead ends: 625 [2023-11-28 23:48:10,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=210, Invalid=492, Unknown=0, NotChecked=0, Total=702 [2023-11-28 23:48:10,693 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 417 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:48:10,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 1062 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-28 23:48:10,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2023-11-28 23:48:10,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 396. [2023-11-28 23:48:10,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 326 states have (on average 1.4723926380368098) internal successors, (480), 329 states have internal predecessors, (480), 62 states have call successors, (62), 7 states have call predecessors, (62), 7 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-28 23:48:10,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 604 transitions. [2023-11-28 23:48:10,730 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 604 transitions. Word has length 173 [2023-11-28 23:48:10,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:48:10,730 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 604 transitions. [2023-11-28 23:48:10,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:10,730 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 604 transitions. [2023-11-28 23:48:10,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-28 23:48:10,731 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:48:10,731 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:48:10,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-28 23:48:10,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-28 23:48:10,932 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:48:10,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:48:10,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1322528857, now seen corresponding path program 1 times [2023-11-28 23:48:10,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:48:10,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501886342] [2023-11-28 23:48:10,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:10,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:48:10,950 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:48:10,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1381546813] [2023-11-28 23:48:10,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:10,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:48:10,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:48:10,951 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:48:10,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-28 23:48:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:48:11,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-28 23:48:11,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:48:16,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:48:16,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:48:16,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:48:16,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501886342] [2023-11-28 23:48:16,056 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:48:16,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381546813] [2023-11-28 23:48:16,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381546813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:48:16,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:48:16,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 23:48:16,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886161021] [2023-11-28 23:48:16,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:48:16,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 23:48:16,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:48:16,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 23:48:16,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:48:16,058 INFO L87 Difference]: Start difference. First operand 396 states and 604 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:17,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:48:17,704 INFO L93 Difference]: Finished difference Result 730 states and 1097 transitions. [2023-11-28 23:48:17,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-28 23:48:17,705 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2023-11-28 23:48:17,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:48:17,707 INFO L225 Difference]: With dead ends: 730 [2023-11-28 23:48:17,707 INFO L226 Difference]: Without dead ends: 542 [2023-11-28 23:48:17,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=185, Invalid=415, Unknown=0, NotChecked=0, Total=600 [2023-11-28 23:48:17,708 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 347 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:48:17,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 901 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-28 23:48:17,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2023-11-28 23:48:17,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 411. [2023-11-28 23:48:17,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 341 states have (on average 1.4750733137829912) internal successors, (503), 344 states have internal predecessors, (503), 62 states have call successors, (62), 7 states have call predecessors, (62), 7 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-28 23:48:17,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 627 transitions. [2023-11-28 23:48:17,742 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 627 transitions. Word has length 173 [2023-11-28 23:48:17,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:48:17,742 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 627 transitions. [2023-11-28 23:48:17,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:17,743 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 627 transitions. [2023-11-28 23:48:17,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-28 23:48:17,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:48:17,744 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:48:17,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-28 23:48:17,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:48:17,945 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:48:17,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:48:17,945 INFO L85 PathProgramCache]: Analyzing trace with hash 704438617, now seen corresponding path program 1 times [2023-11-28 23:48:17,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:48:17,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148394760] [2023-11-28 23:48:17,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:17,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:48:17,968 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:48:17,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1054647397] [2023-11-28 23:48:17,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:17,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:48:17,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:48:17,970 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:48:17,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-28 23:48:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:48:18,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-28 23:48:18,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:48:21,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:48:21,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:48:21,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:48:21,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148394760] [2023-11-28 23:48:21,530 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:48:21,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054647397] [2023-11-28 23:48:21,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054647397] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:48:21,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:48:21,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-28 23:48:21,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269254583] [2023-11-28 23:48:21,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:48:21,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 23:48:21,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:48:21,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 23:48:21,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2023-11-28 23:48:21,532 INFO L87 Difference]: Start difference. First operand 411 states and 627 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:22,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:48:22,678 INFO L93 Difference]: Finished difference Result 756 states and 1137 transitions. [2023-11-28 23:48:22,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-28 23:48:22,678 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2023-11-28 23:48:22,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:48:22,682 INFO L225 Difference]: With dead ends: 756 [2023-11-28 23:48:22,682 INFO L226 Difference]: Without dead ends: 553 [2023-11-28 23:48:22,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=210, Invalid=492, Unknown=0, NotChecked=0, Total=702 [2023-11-28 23:48:22,684 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 543 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:48:22,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 743 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 23:48:22,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2023-11-28 23:48:22,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 415. [2023-11-28 23:48:22,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 345 states have (on average 1.472463768115942) internal successors, (508), 348 states have internal predecessors, (508), 62 states have call successors, (62), 7 states have call predecessors, (62), 7 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-28 23:48:22,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 632 transitions. [2023-11-28 23:48:22,725 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 632 transitions. Word has length 173 [2023-11-28 23:48:22,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:48:22,725 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 632 transitions. [2023-11-28 23:48:22,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:22,726 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 632 transitions. [2023-11-28 23:48:22,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-28 23:48:22,727 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:48:22,727 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:48:22,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-28 23:48:22,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:48:22,928 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:48:22,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:48:22,928 INFO L85 PathProgramCache]: Analyzing trace with hash 311411607, now seen corresponding path program 1 times [2023-11-28 23:48:22,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:48:22,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511950197] [2023-11-28 23:48:22,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:22,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:48:22,946 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:48:22,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1933361849] [2023-11-28 23:48:22,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:22,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:48:22,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:48:22,947 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:48:22,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-28 23:48:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:48:23,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-28 23:48:23,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:48:27,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:48:27,096 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:48:27,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:48:27,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511950197] [2023-11-28 23:48:27,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:48:27,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933361849] [2023-11-28 23:48:27,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933361849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:48:27,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:48:27,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 23:48:27,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950832652] [2023-11-28 23:48:27,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:48:27,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 23:48:27,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:48:27,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 23:48:27,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:48:27,099 INFO L87 Difference]: Start difference. First operand 415 states and 632 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:28,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:48:28,315 INFO L93 Difference]: Finished difference Result 759 states and 1140 transitions. [2023-11-28 23:48:28,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-28 23:48:28,316 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2023-11-28 23:48:28,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:48:28,319 INFO L225 Difference]: With dead ends: 759 [2023-11-28 23:48:28,319 INFO L226 Difference]: Without dead ends: 552 [2023-11-28 23:48:28,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=185, Invalid=415, Unknown=0, NotChecked=0, Total=600 [2023-11-28 23:48:28,321 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 437 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:48:28,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 737 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 23:48:28,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2023-11-28 23:48:28,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 411. [2023-11-28 23:48:28,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 341 states have (on average 1.4750733137829912) internal successors, (503), 344 states have internal predecessors, (503), 62 states have call successors, (62), 7 states have call predecessors, (62), 7 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-28 23:48:28,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 627 transitions. [2023-11-28 23:48:28,360 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 627 transitions. Word has length 173 [2023-11-28 23:48:28,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:48:28,360 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 627 transitions. [2023-11-28 23:48:28,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:28,360 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 627 transitions. [2023-11-28 23:48:28,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-28 23:48:28,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:48:28,362 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:48:28,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-28 23:48:28,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:48:28,563 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:48:28,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:48:28,563 INFO L85 PathProgramCache]: Analyzing trace with hash 435692189, now seen corresponding path program 1 times [2023-11-28 23:48:28,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:48:28,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676563450] [2023-11-28 23:48:28,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:28,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:48:28,585 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:48:28,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [370551871] [2023-11-28 23:48:28,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:28,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:48:28,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:48:28,586 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:48:28,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-28 23:48:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:48:28,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-28 23:48:28,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:48:34,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:48:34,686 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:48:34,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:48:34,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676563450] [2023-11-28 23:48:34,686 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:48:34,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370551871] [2023-11-28 23:48:34,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370551871] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:48:34,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:48:34,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-28 23:48:34,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552056436] [2023-11-28 23:48:34,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:48:34,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:48:34,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:48:34,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:48:34,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:48:34,688 INFO L87 Difference]: Start difference. First operand 411 states and 627 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:35,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:48:35,789 INFO L93 Difference]: Finished difference Result 738 states and 1113 transitions. [2023-11-28 23:48:35,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-28 23:48:35,791 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2023-11-28 23:48:35,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:48:35,794 INFO L225 Difference]: With dead ends: 738 [2023-11-28 23:48:35,794 INFO L226 Difference]: Without dead ends: 535 [2023-11-28 23:48:35,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2023-11-28 23:48:35,795 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 336 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:48:35,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 781 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 23:48:35,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2023-11-28 23:48:35,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 418. [2023-11-28 23:48:35,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 348 states have (on average 1.471264367816092) internal successors, (512), 351 states have internal predecessors, (512), 62 states have call successors, (62), 7 states have call predecessors, (62), 7 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-28 23:48:35,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 636 transitions. [2023-11-28 23:48:35,833 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 636 transitions. Word has length 173 [2023-11-28 23:48:35,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:48:35,833 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 636 transitions. [2023-11-28 23:48:35,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:35,834 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 636 transitions. [2023-11-28 23:48:35,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-28 23:48:35,835 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:48:35,835 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:48:35,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-28 23:48:36,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:48:36,036 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:48:36,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:48:36,036 INFO L85 PathProgramCache]: Analyzing trace with hash 42665179, now seen corresponding path program 1 times [2023-11-28 23:48:36,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:48:36,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948032657] [2023-11-28 23:48:36,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:36,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:48:36,057 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:48:36,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1673957378] [2023-11-28 23:48:36,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:36,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:48:36,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:48:36,059 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:48:36,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-28 23:48:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:48:36,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:48:36,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:48:36,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:48:36,223 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:48:36,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:48:36,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948032657] [2023-11-28 23:48:36,223 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:48:36,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673957378] [2023-11-28 23:48:36,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673957378] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:48:36,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:48:36,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 23:48:36,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493969272] [2023-11-28 23:48:36,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:48:36,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:48:36,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:48:36,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:48:36,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:48:36,225 INFO L87 Difference]: Start difference. First operand 418 states and 636 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:36,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:48:36,422 INFO L93 Difference]: Finished difference Result 1251 states and 1906 transitions. [2023-11-28 23:48:36,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 23:48:36,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2023-11-28 23:48:36,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:48:36,427 INFO L225 Difference]: With dead ends: 1251 [2023-11-28 23:48:36,427 INFO L226 Difference]: Without dead ends: 1041 [2023-11-28 23:48:36,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:48:36,428 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 220 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:48:36,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 504 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:48:36,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2023-11-28 23:48:36,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 444. [2023-11-28 23:48:36,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 374 states have (on average 1.4732620320855614) internal successors, (551), 377 states have internal predecessors, (551), 62 states have call successors, (62), 7 states have call predecessors, (62), 7 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-28 23:48:36,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 675 transitions. [2023-11-28 23:48:36,468 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 675 transitions. Word has length 173 [2023-11-28 23:48:36,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:48:36,468 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 675 transitions. [2023-11-28 23:48:36,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:36,469 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 675 transitions. [2023-11-28 23:48:36,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-28 23:48:36,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:48:36,470 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:48:36,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-28 23:48:36,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:48:36,671 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:48:36,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:48:36,671 INFO L85 PathProgramCache]: Analyzing trace with hash -766681447, now seen corresponding path program 1 times [2023-11-28 23:48:36,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:48:36,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011245457] [2023-11-28 23:48:36,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:36,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:48:36,690 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:48:36,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1301991960] [2023-11-28 23:48:36,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:36,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:48:36,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:48:36,692 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:48:36,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-28 23:48:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:48:36,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-28 23:48:36,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:48:37,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 603 proven. 24 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked. [2023-11-28 23:48:37,024 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:48:37,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 51 proven. 24 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2023-11-28 23:48:37,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:48:37,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011245457] [2023-11-28 23:48:37,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:48:37,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301991960] [2023-11-28 23:48:37,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301991960] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:48:37,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:48:37,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2023-11-28 23:48:37,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237313765] [2023-11-28 23:48:37,361 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:48:37,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-28 23:48:37,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:48:37,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-28 23:48:37,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2023-11-28 23:48:37,363 INFO L87 Difference]: Start difference. First operand 444 states and 675 transitions. Second operand has 18 states, 18 states have (on average 4.388888888888889) internal successors, (79), 18 states have internal predecessors, (79), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-11-28 23:48:39,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:48:39,402 INFO L93 Difference]: Finished difference Result 1234 states and 1794 transitions. [2023-11-28 23:48:39,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-11-28 23:48:39,403 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.388888888888889) internal successors, (79), 18 states have internal predecessors, (79), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 173 [2023-11-28 23:48:39,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:48:39,408 INFO L225 Difference]: With dead ends: 1234 [2023-11-28 23:48:39,408 INFO L226 Difference]: Without dead ends: 998 [2023-11-28 23:48:39,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1285 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1051, Invalid=3505, Unknown=0, NotChecked=0, Total=4556 [2023-11-28 23:48:39,411 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 759 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:48:39,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 1253 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-28 23:48:39,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2023-11-28 23:48:39,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 615. [2023-11-28 23:48:39,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 504 states have (on average 1.4384920634920635) internal successors, (725), 509 states have internal predecessors, (725), 94 states have call successors, (94), 16 states have call predecessors, (94), 16 states have return successors, (94), 89 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-28 23:48:39,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 913 transitions. [2023-11-28 23:48:39,475 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 913 transitions. Word has length 173 [2023-11-28 23:48:39,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:48:39,476 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 913 transitions. [2023-11-28 23:48:39,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.388888888888889) internal successors, (79), 18 states have internal predecessors, (79), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-11-28 23:48:39,476 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 913 transitions. [2023-11-28 23:48:39,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-28 23:48:39,478 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:48:39,478 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:48:39,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-28 23:48:39,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-28 23:48:39,679 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:48:39,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:48:39,679 INFO L85 PathProgramCache]: Analyzing trace with hash 897907417, now seen corresponding path program 1 times [2023-11-28 23:48:39,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:48:39,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157146834] [2023-11-28 23:48:39,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:39,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:48:39,694 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:48:39,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [627147887] [2023-11-28 23:48:39,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:39,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:48:39,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:48:39,696 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:48:39,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-28 23:48:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:48:39,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-28 23:48:39,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:48:44,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:48:44,055 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:48:44,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:48:44,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157146834] [2023-11-28 23:48:44,055 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:48:44,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627147887] [2023-11-28 23:48:44,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627147887] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:48:44,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:48:44,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 23:48:44,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368954969] [2023-11-28 23:48:44,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:48:44,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 23:48:44,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:48:44,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 23:48:44,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:48:44,057 INFO L87 Difference]: Start difference. First operand 615 states and 913 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:44,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:48:44,835 INFO L93 Difference]: Finished difference Result 1181 states and 1741 transitions. [2023-11-28 23:48:44,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-28 23:48:44,835 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2023-11-28 23:48:44,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:48:44,839 INFO L225 Difference]: With dead ends: 1181 [2023-11-28 23:48:44,839 INFO L226 Difference]: Without dead ends: 823 [2023-11-28 23:48:44,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=186, Invalid=414, Unknown=0, NotChecked=0, Total=600 [2023-11-28 23:48:44,840 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 400 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 23:48:44,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 812 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 23:48:44,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2023-11-28 23:48:44,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 623. [2023-11-28 23:48:44,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 512 states have (on average 1.439453125) internal successors, (737), 517 states have internal predecessors, (737), 94 states have call successors, (94), 16 states have call predecessors, (94), 16 states have return successors, (94), 89 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-28 23:48:44,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 925 transitions. [2023-11-28 23:48:44,885 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 925 transitions. Word has length 173 [2023-11-28 23:48:44,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:48:44,886 INFO L495 AbstractCegarLoop]: Abstraction has 623 states and 925 transitions. [2023-11-28 23:48:44,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:44,886 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 925 transitions. [2023-11-28 23:48:44,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-28 23:48:44,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:48:44,887 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:48:44,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-28 23:48:45,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-28 23:48:45,088 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:48:45,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:48:45,088 INFO L85 PathProgramCache]: Analyzing trace with hash 504880407, now seen corresponding path program 1 times [2023-11-28 23:48:45,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:48:45,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375399] [2023-11-28 23:48:45,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:45,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:48:45,103 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:48:45,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1033322637] [2023-11-28 23:48:45,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:45,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:48:45,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:48:45,104 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:48:45,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-28 23:48:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:48:45,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-28 23:48:45,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:48:47,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:48:47,589 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:48:47,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:48:47,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375399] [2023-11-28 23:48:47,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:48:47,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033322637] [2023-11-28 23:48:47,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033322637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:48:47,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:48:47,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-28 23:48:47,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454665585] [2023-11-28 23:48:47,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:48:47,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 23:48:47,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:48:47,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 23:48:47,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:48:47,592 INFO L87 Difference]: Start difference. First operand 623 states and 925 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:48,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:48:48,487 INFO L93 Difference]: Finished difference Result 1238 states and 1827 transitions. [2023-11-28 23:48:48,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-28 23:48:48,488 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2023-11-28 23:48:48,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:48:48,491 INFO L225 Difference]: With dead ends: 1238 [2023-11-28 23:48:48,492 INFO L226 Difference]: Without dead ends: 872 [2023-11-28 23:48:48,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=185, Invalid=415, Unknown=0, NotChecked=0, Total=600 [2023-11-28 23:48:48,493 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 294 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:48:48,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 866 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-28 23:48:48,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2023-11-28 23:48:48,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 623. [2023-11-28 23:48:48,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 512 states have (on average 1.439453125) internal successors, (737), 517 states have internal predecessors, (737), 94 states have call successors, (94), 16 states have call predecessors, (94), 16 states have return successors, (94), 89 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-28 23:48:48,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 925 transitions. [2023-11-28 23:48:48,538 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 925 transitions. Word has length 173 [2023-11-28 23:48:48,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:48:48,538 INFO L495 AbstractCegarLoop]: Abstraction has 623 states and 925 transitions. [2023-11-28 23:48:48,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:48,539 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 925 transitions. [2023-11-28 23:48:48,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-28 23:48:48,540 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:48:48,540 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:48:48,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-28 23:48:48,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-28 23:48:48,740 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:48:48,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:48:48,741 INFO L85 PathProgramCache]: Analyzing trace with hash -113209833, now seen corresponding path program 1 times [2023-11-28 23:48:48,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:48:48,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370842965] [2023-11-28 23:48:48,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:48,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:48:48,759 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:48:48,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [295656430] [2023-11-28 23:48:48,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:48,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:48:48,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:48:48,760 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:48:48,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-28 23:48:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:48:48,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-28 23:48:48,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:48:51,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:48:51,133 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:48:51,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:48:51,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370842965] [2023-11-28 23:48:51,133 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:48:51,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295656430] [2023-11-28 23:48:51,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295656430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:48:51,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:48:51,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-28 23:48:51,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537750189] [2023-11-28 23:48:51,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:48:51,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:48:51,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:48:51,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:48:51,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:48:51,135 INFO L87 Difference]: Start difference. First operand 623 states and 925 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:51,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:48:51,721 INFO L93 Difference]: Finished difference Result 1212 states and 1785 transitions. [2023-11-28 23:48:51,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-28 23:48:51,722 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2023-11-28 23:48:51,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:48:51,725 INFO L225 Difference]: With dead ends: 1212 [2023-11-28 23:48:51,725 INFO L226 Difference]: Without dead ends: 846 [2023-11-28 23:48:51,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2023-11-28 23:48:51,727 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 291 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:48:51,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 790 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 23:48:51,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2023-11-28 23:48:51,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 627. [2023-11-28 23:48:51,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 516 states have (on average 1.437984496124031) internal successors, (742), 521 states have internal predecessors, (742), 94 states have call successors, (94), 16 states have call predecessors, (94), 16 states have return successors, (94), 89 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-28 23:48:51,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 930 transitions. [2023-11-28 23:48:51,789 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 930 transitions. Word has length 173 [2023-11-28 23:48:51,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:48:51,789 INFO L495 AbstractCegarLoop]: Abstraction has 627 states and 930 transitions. [2023-11-28 23:48:51,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:51,790 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 930 transitions. [2023-11-28 23:48:51,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-28 23:48:51,791 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:48:51,791 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:48:51,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-28 23:48:51,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-28 23:48:51,992 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:48:51,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:48:51,992 INFO L85 PathProgramCache]: Analyzing trace with hash -381956261, now seen corresponding path program 1 times [2023-11-28 23:48:51,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:48:51,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210502868] [2023-11-28 23:48:51,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:51,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:48:52,010 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:48:52,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [911383230] [2023-11-28 23:48:52,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:52,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:48:52,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:48:52,011 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:48:52,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-28 23:48:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:48:52,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-28 23:48:52,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:48:56,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-28 23:48:56,411 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:48:56,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:48:56,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210502868] [2023-11-28 23:48:56,411 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:48:56,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911383230] [2023-11-28 23:48:56,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911383230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:48:56,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:48:56,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-28 23:48:56,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319930026] [2023-11-28 23:48:56,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:48:56,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:48:56,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:48:56,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:48:56,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:48:56,413 INFO L87 Difference]: Start difference. First operand 627 states and 930 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:57,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:48:57,234 INFO L93 Difference]: Finished difference Result 1204 states and 1773 transitions. [2023-11-28 23:48:57,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-28 23:48:57,235 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2023-11-28 23:48:57,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:48:57,247 INFO L225 Difference]: With dead ends: 1204 [2023-11-28 23:48:57,248 INFO L226 Difference]: Without dead ends: 834 [2023-11-28 23:48:57,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2023-11-28 23:48:57,249 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 282 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:48:57,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 964 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-28 23:48:57,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2023-11-28 23:48:57,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 627. [2023-11-28 23:48:57,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 516 states have (on average 1.437984496124031) internal successors, (742), 521 states have internal predecessors, (742), 94 states have call successors, (94), 16 states have call predecessors, (94), 16 states have return successors, (94), 89 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-28 23:48:57,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 930 transitions. [2023-11-28 23:48:57,293 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 930 transitions. Word has length 173 [2023-11-28 23:48:57,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:48:57,293 INFO L495 AbstractCegarLoop]: Abstraction has 627 states and 930 transitions. [2023-11-28 23:48:57,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-28 23:48:57,294 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 930 transitions. [2023-11-28 23:48:57,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-28 23:48:57,295 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:48:57,295 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:48:57,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-28 23:48:57,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-28 23:48:57,496 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:48:57,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:48:57,496 INFO L85 PathProgramCache]: Analyzing trace with hash -322939667, now seen corresponding path program 1 times [2023-11-28 23:48:57,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:48:57,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476215773] [2023-11-28 23:48:57,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:57,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:48:57,511 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:48:57,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1274064624] [2023-11-28 23:48:57,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:57,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:48:57,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:48:57,512 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:48:57,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-28 23:48:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:48:57,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:48:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:48:57,834 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:48:57,835 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-28 23:48:57,836 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-28 23:48:57,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-11-28 23:48:58,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-28 23:48:58,040 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:48:58,043 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 23:48:58,135 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-28 23:48:58,137 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-28 23:48:58,138 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short23 could not be translated [2023-11-28 23:48:58,138 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated [2023-11-28 23:48:58,138 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short23 could not be translated [2023-11-28 23:48:58,139 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short23 could not be translated [2023-11-28 23:48:58,139 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated [2023-11-28 23:48:58,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:48:58 BoogieIcfgContainer [2023-11-28 23:48:58,163 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 23:48:58,164 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 23:48:58,164 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 23:48:58,164 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 23:48:58,164 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:46:16" (3/4) ... [2023-11-28 23:48:58,166 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-28 23:48:58,166 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 23:48:58,167 INFO L158 Benchmark]: Toolchain (without parser) took 162933.78ms. Allocated memory was 130.0MB in the beginning and 824.2MB in the end (delta: 694.2MB). Free memory was 91.8MB in the beginning and 683.6MB in the end (delta: -591.8MB). Peak memory consumption was 102.7MB. Max. memory is 16.1GB. [2023-11-28 23:48:58,167 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory was 72.0MB in the beginning and 71.9MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:48:58,167 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.96ms. Allocated memory is still 130.0MB. Free memory was 91.8MB in the beginning and 74.7MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-28 23:48:58,167 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.35ms. Allocated memory is still 130.0MB. Free memory was 74.7MB in the beginning and 67.7MB in the end (delta: 7.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-28 23:48:58,168 INFO L158 Benchmark]: Boogie Preprocessor took 116.12ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 67.7MB in the beginning and 118.7MB in the end (delta: -51.0MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2023-11-28 23:48:58,168 INFO L158 Benchmark]: RCFGBuilder took 581.85ms. Allocated memory is still 157.3MB. Free memory was 118.7MB in the beginning and 84.2MB in the end (delta: 34.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-28 23:48:58,168 INFO L158 Benchmark]: TraceAbstraction took 161828.59ms. Allocated memory was 157.3MB in the beginning and 824.2MB in the end (delta: 666.9MB). Free memory was 83.0MB in the beginning and 684.6MB in the end (delta: -601.6MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. [2023-11-28 23:48:58,169 INFO L158 Benchmark]: Witness Printer took 2.82ms. Allocated memory is still 824.2MB. Free memory was 684.6MB in the beginning and 683.6MB in the end (delta: 974.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:48:58,170 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory was 72.0MB in the beginning and 71.9MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.96ms. Allocated memory is still 130.0MB. Free memory was 91.8MB in the beginning and 74.7MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.35ms. Allocated memory is still 130.0MB. Free memory was 74.7MB in the beginning and 67.7MB in the end (delta: 7.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 116.12ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 67.7MB in the beginning and 118.7MB in the end (delta: -51.0MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * RCFGBuilder took 581.85ms. Allocated memory is still 157.3MB. Free memory was 118.7MB in the beginning and 84.2MB in the end (delta: 34.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 161828.59ms. Allocated memory was 157.3MB in the beginning and 824.2MB in the end (delta: 666.9MB). Free memory was 83.0MB in the beginning and 684.6MB in the end (delta: -601.6MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. * Witness Printer took 2.82ms. Allocated memory is still 824.2MB. Free memory was 684.6MB in the beginning and 683.6MB in the end (delta: 974.7kB). 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~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short23 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short23 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short23 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet22 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 197, overapproximation of someBinaryFLOATComparisonOperation at line 197, overapproximation of someUnaryDOUBLEoperation at line 144. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 4; [L23] unsigned char var_1_6 = 4; [L24] unsigned char var_1_7 = 2; [L25] unsigned char var_1_8 = 128; [L26] unsigned char var_1_9 = 0; [L27] unsigned char var_1_10 = 100; [L28] signed short int var_1_11 = 10; [L29] unsigned char var_1_12 = 1; [L30] unsigned char var_1_13 = 1; [L31] unsigned char var_1_14 = 0; [L32] signed long int var_1_15 = 128; [L33] unsigned char var_1_16 = 128; [L34] unsigned char var_1_17 = 5; [L35] double var_1_18 = 3.6; [L36] double var_1_19 = 31.45; [L37] float var_1_20 = 50.25; [L38] float var_1_21 = 9.8; [L39] float var_1_22 = 4.65; [L40] float var_1_23 = 99.65; [L41] unsigned long int var_1_25 = 128; [L42] signed short int var_1_27 = -16; [L43] double var_1_30 = 4.5; [L44] signed char var_1_32 = -10; [L45] signed char var_1_34 = 5; [L46] unsigned char var_1_35 = 1; [L47] unsigned char var_1_36 = 1; [L48] signed short int var_1_37 = 4; [L49] signed long int var_1_38 = -16; [L50] signed char var_1_39 = -32; [L51] unsigned short int last_1_var_1_1 = 4; [L52] unsigned char last_1_var_1_6 = 4; [L53] signed short int last_1_var_1_11 = 10; [L54] signed long int last_1_var_1_15 = 128; [L201] isInitial = 1 [L202] FCALL initially() [L203] COND TRUE 1 [L204] CALL updateLastVariables() [L191] last_1_var_1_1 = var_1_1 [L192] last_1_var_1_6 = var_1_6 [L193] last_1_var_1_11 = var_1_11 [L194] last_1_var_1_15 = var_1_15 [L204] RET updateLastVariables() [L205] CALL updateVariables() [L148] var_1_7 = __VERIFIER_nondet_uchar() [L149] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_8=128, var_1_9=0] [L149] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_8=128, var_1_9=0] [L150] CALL assume_abort_if_not(var_1_7 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=128, var_1_9=0] [L150] RET assume_abort_if_not(var_1_7 <= 254) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=128, var_1_9=0] [L151] var_1_8 = __VERIFIER_nondet_uchar() [L152] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_9=0] [L152] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_9=0] [L153] CALL assume_abort_if_not(var_1_8 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L153] RET assume_abort_if_not(var_1_8 <= 254) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L154] var_1_9 = __VERIFIER_nondet_uchar() [L155] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0] [L155] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0] [L156] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L156] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L157] var_1_10 = __VERIFIER_nondet_uchar() [L158] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L158] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L159] CALL assume_abort_if_not(var_1_10 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L159] RET assume_abort_if_not(var_1_10 <= 254) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L160] var_1_12 = __VERIFIER_nondet_uchar() [L161] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L161] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L162] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L162] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L163] var_1_13 = __VERIFIER_nondet_uchar() [L164] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L164] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L165] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L165] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L166] var_1_14 = __VERIFIER_nondet_uchar() [L167] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L167] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L168] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L168] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L169] var_1_16 = __VERIFIER_nondet_uchar() [L170] CALL assume_abort_if_not(var_1_16 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L170] RET assume_abort_if_not(var_1_16 >= 127) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L171] CALL assume_abort_if_not(var_1_16 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L171] RET assume_abort_if_not(var_1_16 <= 255) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L172] var_1_17 = __VERIFIER_nondet_uchar() [L173] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L173] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L174] CALL assume_abort_if_not(var_1_17 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L174] RET assume_abort_if_not(var_1_17 <= 127) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L175] var_1_19 = __VERIFIER_nondet_double() [L176] CALL assume_abort_if_not((var_1_19 >= -922337.2036854765600e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 9223372.036854765600e+12F && var_1_19 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L176] RET assume_abort_if_not((var_1_19 >= -922337.2036854765600e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 9223372.036854765600e+12F && var_1_19 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L177] var_1_21 = __VERIFIER_nondet_float() [L178] CALL assume_abort_if_not((var_1_21 >= -461168.6018427382800e+13F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 4611686.018427382800e+12F && var_1_21 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L178] RET assume_abort_if_not((var_1_21 >= -461168.6018427382800e+13F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 4611686.018427382800e+12F && var_1_21 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_22=93/20, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L179] var_1_22 = __VERIFIER_nondet_float() [L180] CALL assume_abort_if_not((var_1_22 >= -461168.6018427382800e+13F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 4611686.018427382800e+12F && var_1_22 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L180] RET assume_abort_if_not((var_1_22 >= -461168.6018427382800e+13F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 4611686.018427382800e+12F && var_1_22 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_23=1993/20, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L181] var_1_23 = __VERIFIER_nondet_float() [L182] CALL assume_abort_if_not((var_1_23 >= -461168.6018427382800e+13F && var_1_23 <= -1.0e-20F) || (var_1_23 <= 4611686.018427382800e+12F && var_1_23 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L182] RET assume_abort_if_not((var_1_23 >= -461168.6018427382800e+13F && var_1_23 <= -1.0e-20F) || (var_1_23 <= 4611686.018427382800e+12F && var_1_23 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=5, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L183] var_1_34 = __VERIFIER_nondet_char() [L184] CALL assume_abort_if_not(var_1_34 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L184] RET assume_abort_if_not(var_1_34 >= -126) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L185] CALL assume_abort_if_not(var_1_34 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L185] RET assume_abort_if_not(var_1_34 <= 126) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L186] var_1_36 = __VERIFIER_nondet_uchar() [L187] CALL assume_abort_if_not(var_1_36 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L187] RET assume_abort_if_not(var_1_36 >= 1) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L188] CALL assume_abort_if_not(var_1_36 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L188] RET assume_abort_if_not(var_1_36 <= 1) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L205] RET updateVariables() [L206] CALL step() [L58] unsigned char stepLocal_2 = var_1_14; VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, stepLocal_2=0, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L59] COND FALSE !(\read(var_1_12)) [L70] var_1_11 = last_1_var_1_11 VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, stepLocal_2=0, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=128, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L72] var_1_25 = var_1_17 VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, stepLocal_2=0, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=5, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=4, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L73] COND TRUE var_1_34 <= var_1_6 [L74] var_1_37 = (((((32 - 2)) < (var_1_15)) ? ((32 - 2)) : (var_1_15))) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, stepLocal_2=0, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=5, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=-16, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L86] COND TRUE var_1_22 <= 9.6 [L87] var_1_38 = (((((var_1_34 + var_1_11)) > (var_1_1)) ? ((var_1_34 + var_1_11)) : (var_1_1))) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, stepLocal_2=0, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=5, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L97] signed long int stepLocal_1 = last_1_var_1_1; VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, stepLocal_1=4, stepLocal_2=0, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=5, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=-32, var_1_6=4, var_1_7=0, var_1_8=0, var_1_9=0] [L98] COND TRUE stepLocal_1 < 5 [L99] var_1_6 = ((((((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) > (var_1_10)) ? (((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) : (var_1_10))) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, stepLocal_1=4, stepLocal_2=0, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=5, var_1_27=-16, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=-32, var_1_6=11, var_1_7=0, var_1_8=0, var_1_9=0] [L103] COND TRUE (var_1_1 < ((((var_1_17) < 0 ) ? -(var_1_17) : (var_1_17)))) || var_1_13 [L104] var_1_27 = var_1_7 VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, stepLocal_1=4, stepLocal_2=0, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=5, var_1_27=0, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=-32, var_1_6=11, var_1_7=0, var_1_8=0, var_1_9=0] [L106] EXPR var_1_8 & var_1_6 VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, stepLocal_1=4, stepLocal_2=0, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=5, var_1_27=0, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=-32, var_1_6=11, var_1_7=0, var_1_8=0, var_1_9=0] [L106] COND FALSE !(var_1_10 <= (~ (var_1_8 & var_1_6))) [L109] unsigned char stepLocal_0 = var_1_6; VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, stepLocal_0=11, stepLocal_1=4, stepLocal_2=0, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_25=5, var_1_27=0, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=-32, var_1_6=11, var_1_7=0, var_1_8=0, var_1_9=0] [L110] COND TRUE var_1_11 <= stepLocal_0 [L111] var_1_1 = ((((((((var_1_11) < (((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))))) ? (var_1_11) : (((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))))))) > (var_1_6)) ? (((((var_1_11) < (((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))))) ? (var_1_11) : (((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))))))) : (var_1_6))) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, stepLocal_0=11, stepLocal_1=4, stepLocal_2=0, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=11, var_1_20=201/4, var_1_25=5, var_1_27=0, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=-32, var_1_6=11, var_1_7=0, var_1_8=0, var_1_9=0] [L113] COND FALSE !(var_1_10 <= var_1_8) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, stepLocal_0=11, stepLocal_1=4, stepLocal_2=0, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=11, var_1_20=201/4, var_1_25=5, var_1_27=0, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=-32, var_1_6=11, var_1_7=0, var_1_8=0, var_1_9=0] [L116] signed long int stepLocal_5 = 0; VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, stepLocal_0=11, stepLocal_1=4, stepLocal_2=0, stepLocal_5=0, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=11, var_1_20=201/4, var_1_25=5, var_1_27=0, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=-32, var_1_6=11, var_1_7=0, var_1_8=0, var_1_9=0] [L117] COND FALSE !(\read(var_1_13)) [L130] var_1_20 = var_1_23 VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, stepLocal_0=11, stepLocal_1=4, stepLocal_2=0, stepLocal_5=0, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=11, var_1_20=2, var_1_23=2, var_1_25=5, var_1_27=0, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=-32, var_1_6=11, var_1_7=0, var_1_8=0, var_1_9=0] [L132] unsigned char stepLocal_3 = var_1_6; VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, stepLocal_0=11, stepLocal_1=4, stepLocal_2=0, stepLocal_3=11, stepLocal_5=0, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=11, var_1_20=2, var_1_23=2, var_1_25=5, var_1_27=0, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=-32, var_1_6=11, var_1_7=0, var_1_8=0, var_1_9=0] [L133] COND TRUE stepLocal_3 <= (((((128) > (var_1_16)) ? (128) : (var_1_16))) - var_1_17) [L134] var_1_15 = (((((var_1_6 - var_1_6)) > (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7))))) ? ((var_1_6 - var_1_6)) : (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7)))))) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, stepLocal_0=11, stepLocal_1=4, stepLocal_2=0, stepLocal_3=11, stepLocal_5=0, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=11, var_1_20=2, var_1_23=2, var_1_25=5, var_1_27=0, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=-32, var_1_6=11, var_1_7=0, var_1_8=0, var_1_9=0] [L138] var_1_39 = var_1_34 [L139] unsigned short int stepLocal_4 = var_1_1; VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, stepLocal_0=11, stepLocal_1=4, stepLocal_2=0, stepLocal_3=11, stepLocal_4=11, stepLocal_5=0, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=11, var_1_20=2, var_1_23=2, var_1_25=5, var_1_27=0, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=4, var_1_6=11, var_1_7=0, var_1_8=0, var_1_9=0] [L140] EXPR 200 << var_1_15 VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, stepLocal_0=11, stepLocal_1=4, stepLocal_2=0, stepLocal_3=11, stepLocal_4=11, stepLocal_5=0, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=127, var_1_17=5, var_1_18=18/5, var_1_1=11, var_1_20=2, var_1_23=2, var_1_25=5, var_1_27=0, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=4, var_1_6=11, var_1_7=0, var_1_8=0, var_1_9=0] [L140] COND TRUE ((200 << var_1_15) * (var_1_17 * var_1_7)) < stepLocal_4 [L141] var_1_18 = var_1_19 VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, stepLocal_0=11, stepLocal_1=4, stepLocal_2=0, stepLocal_3=11, stepLocal_4=11, stepLocal_5=0, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=127, var_1_17=5, var_1_18=3, var_1_19=3, var_1_1=11, var_1_20=2, var_1_23=2, var_1_25=5, var_1_27=0, var_1_30=9/2, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=4, var_1_6=11, var_1_7=0, var_1_8=0, var_1_9=0] [L143] COND TRUE ! var_1_14 [L144] var_1_30 = ((((var_1_19) < 0 ) ? -(var_1_19) : (var_1_19))) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, stepLocal_0=11, stepLocal_1=4, stepLocal_2=0, stepLocal_3=11, stepLocal_4=11, stepLocal_5=0, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=127, var_1_17=5, var_1_18=3, var_1_19=3, var_1_1=11, var_1_20=2, var_1_23=2, var_1_25=5, var_1_27=0, var_1_30=4, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=4, var_1_6=11, var_1_7=0, var_1_8=0, var_1_9=0] [L206] RET step() [L207] CALL, EXPR property() [L197] EXPR (((((var_1_11 <= var_1_6) ? (var_1_1 == ((unsigned short int) ((((((((var_1_11) < (((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))))) ? (var_1_11) : (((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))))))) > (var_1_6)) ? (((((var_1_11) < (((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))))) ? (var_1_11) : (((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))))))) : (var_1_6))))) : 1) && ((last_1_var_1_1 < 5) ? (var_1_6 == ((unsigned char) ((((((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) > (var_1_10)) ? (((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) : (var_1_10))))) : (var_1_6 == ((unsigned char) var_1_10)))) && (var_1_12 ? (var_1_13 ? (((last_1_var_1_6 > (~ var_1_10)) && var_1_14) ? (var_1_11 == ((signed short int) ((((var_1_8) > ((var_1_10 + last_1_var_1_15))) ? (var_1_8) : ((var_1_10 + last_1_var_1_15)))))) : (var_1_11 == ((signed short int) last_1_var_1_6))) : (var_1_11 == ((signed short int) var_1_8))) : (var_1_11 == ((signed short int) last_1_var_1_11)))) && ((var_1_6 <= (((((128) > (var_1_16)) ? (128) : (var_1_16))) - var_1_17)) ? (var_1_15 == ((signed long int) (((((var_1_6 - var_1_6)) > (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7))))) ? ((var_1_6 - var_1_6)) : (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7)))))))) : (var_1_15 == ((signed long int) var_1_11)))) && ((((200 << var_1_15) * (var_1_17 * var_1_7)) < var_1_1) ? (var_1_18 == ((double) var_1_19)) : 1) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=127, var_1_17=5, var_1_18=3, var_1_19=3, var_1_1=11, var_1_20=2, var_1_23=2, var_1_25=5, var_1_27=0, var_1_30=4, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=4, var_1_6=11, var_1_7=0, var_1_8=0, var_1_9=0] [L197] EXPR 200 << var_1_15 VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=127, var_1_17=5, var_1_18=3, var_1_19=3, var_1_1=11, var_1_20=2, var_1_23=2, var_1_25=5, var_1_27=0, var_1_30=4, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=4, var_1_6=11, var_1_7=0, var_1_8=0, var_1_9=0] [L197] EXPR (((((var_1_11 <= var_1_6) ? (var_1_1 == ((unsigned short int) ((((((((var_1_11) < (((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))))) ? (var_1_11) : (((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))))))) > (var_1_6)) ? (((((var_1_11) < (((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))))) ? (var_1_11) : (((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))))))) : (var_1_6))))) : 1) && ((last_1_var_1_1 < 5) ? (var_1_6 == ((unsigned char) ((((((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) > (var_1_10)) ? (((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) : (var_1_10))))) : (var_1_6 == ((unsigned char) var_1_10)))) && (var_1_12 ? (var_1_13 ? (((last_1_var_1_6 > (~ var_1_10)) && var_1_14) ? (var_1_11 == ((signed short int) ((((var_1_8) > ((var_1_10 + last_1_var_1_15))) ? (var_1_8) : ((var_1_10 + last_1_var_1_15)))))) : (var_1_11 == ((signed short int) last_1_var_1_6))) : (var_1_11 == ((signed short int) var_1_8))) : (var_1_11 == ((signed short int) last_1_var_1_11)))) && ((var_1_6 <= (((((128) > (var_1_16)) ? (128) : (var_1_16))) - var_1_17)) ? (var_1_15 == ((signed long int) (((((var_1_6 - var_1_6)) > (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7))))) ? ((var_1_6 - var_1_6)) : (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7)))))))) : (var_1_15 == ((signed long int) var_1_11)))) && ((((200 << var_1_15) * (var_1_17 * var_1_7)) < var_1_1) ? (var_1_18 == ((double) var_1_19)) : 1) VAL [isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=127, var_1_17=5, var_1_18=3, var_1_19=3, var_1_1=11, var_1_20=2, var_1_23=2, var_1_25=5, var_1_27=0, var_1_30=4, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=4, var_1_6=11, var_1_7=0, var_1_8=0, var_1_9=0] [L197-L198] return ((((((var_1_11 <= var_1_6) ? (var_1_1 == ((unsigned short int) ((((((((var_1_11) < (((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))))) ? (var_1_11) : (((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))))))) > (var_1_6)) ? (((((var_1_11) < (((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))))) ? (var_1_11) : (((((var_1_6) > (var_1_6)) ? (var_1_6) : (var_1_6))))))) : (var_1_6))))) : 1) && ((last_1_var_1_1 < 5) ? (var_1_6 == ((unsigned char) ((((((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) > (var_1_10)) ? (((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) : (var_1_10))))) : (var_1_6 == ((unsigned char) var_1_10)))) && (var_1_12 ? (var_1_13 ? (((last_1_var_1_6 > (~ var_1_10)) && var_1_14) ? (var_1_11 == ((signed short int) ((((var_1_8) > ((var_1_10 + last_1_var_1_15))) ? (var_1_8) : ((var_1_10 + last_1_var_1_15)))))) : (var_1_11 == ((signed short int) last_1_var_1_6))) : (var_1_11 == ((signed short int) var_1_8))) : (var_1_11 == ((signed short int) last_1_var_1_11)))) && ((var_1_6 <= (((((128) > (var_1_16)) ? (128) : (var_1_16))) - var_1_17)) ? (var_1_15 == ((signed long int) (((((var_1_6 - var_1_6)) > (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7))))) ? ((var_1_6 - var_1_6)) : (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7)))))))) : (var_1_15 == ((signed long int) var_1_11)))) && ((((200 << var_1_15) * (var_1_17 * var_1_7)) < var_1_1) ? (var_1_18 == ((double) var_1_19)) : 1)) && (var_1_13 ? (var_1_14 ? (var_1_12 ? (var_1_20 == ((float) (var_1_21 + ((((var_1_22) > (var_1_23)) ? (var_1_22) : (var_1_23)))))) : 1) : ((var_1_6 <= 0) ? (var_1_20 == ((float) var_1_19)) : (var_1_20 == ((float) var_1_22)))) : (var_1_20 == ((float) var_1_23))) ; [L207] RET, EXPR property() [L207] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=127, var_1_17=5, var_1_18=3, var_1_19=3, var_1_1=11, var_1_20=2, var_1_23=2, var_1_25=5, var_1_27=0, var_1_30=4, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=4, var_1_6=11, var_1_7=0, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=10, last_1_var_1_15=128, last_1_var_1_1=4, last_1_var_1_6=4, var_1_10=11, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=127, var_1_17=5, var_1_18=3, var_1_19=3, var_1_1=11, var_1_20=2, var_1_23=2, var_1_25=5, var_1_27=0, var_1_30=4, var_1_32=-10, var_1_34=4, var_1_35=1, var_1_36=1, var_1_37=30, var_1_38=14, var_1_39=4, var_1_6=11, var_1_7=0, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 161.6s, OverallIterations: 29, TraceHistogramMax: 26, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 30.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10315 SdHoareTripleChecker+Valid, 16.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10283 mSDsluCounter, 21985 SdHoareTripleChecker+Invalid, 14.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17314 mSDsCounter, 1266 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13681 IncrementalHoareTripleChecker+Invalid, 14947 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1266 mSolverCounterUnsat, 4671 mSDtfsCounter, 13681 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5299 GetRequests, 4737 SyntacticMatches, 0 SemanticMatches, 562 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3045 ImplicationChecksByTransitivity, 18.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=627occurred in iteration=27, InterpolantAutomatonStates: 557, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 28 MinimizatonAttempts, 4299 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 119.2s InterpolantComputationTime, 5178 NumberOfCodeBlocks, 5178 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 4976 ConstructedInterpolants, 0 QuantifiedInterpolants, 44364 SizeOfPredicates, 475 NumberOfNonLiveVariables, 11768 ConjunctsInSsa, 541 ConjunctsInUnsatCore, 29 InterpolantComputations, 27 PerfectInterpolantSequences, 37652/37700 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 [2023-11-28 23:48:58,390 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-11-28 23:48:58,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 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_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/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_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-28.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/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_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/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 19cc8c12b97d00c18bd753d2c40678eb07734cfb5a01e7b7c6c980ae83e69a6f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:49:00,121 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:49:00,195 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-28 23:49:00,201 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:49:00,201 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:49:00,228 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:49:00,229 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:49:00,229 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:49:00,230 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:49:00,231 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:49:00,231 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:49:00,232 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:49:00,233 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:49:00,233 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:49:00,234 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:49:00,235 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:49:00,235 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:49:00,236 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:49:00,236 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:49:00,237 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:49:00,237 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:49:00,238 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:49:00,238 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:49:00,239 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 23:49:00,239 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-28 23:49:00,240 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-28 23:49:00,240 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:49:00,240 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:49:00,241 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:49:00,241 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:49:00,242 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:49:00,242 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 23:49:00,242 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:49:00,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:49:00,243 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:49:00,243 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:49:00,244 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 23:49:00,244 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-28 23:49:00,244 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-28 23:49:00,244 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:49:00,244 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:49:00,245 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 23:49:00,245 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:49:00,245 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:49:00,245 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-28 23:49:00,246 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_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19cc8c12b97d00c18bd753d2c40678eb07734cfb5a01e7b7c6c980ae83e69a6f [2023-11-28 23:49:00,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:49:00,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:49:00,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:49:00,535 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:49:00,535 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:49:00,536 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-28.i [2023-11-28 23:49:03,381 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:49:03,611 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:49:03,612 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-28.i [2023-11-28 23:49:03,623 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/data/7eaf3dbf9/5a6612d2daa14945b98c76dd92c040cb/FLAGeecfd5850 [2023-11-28 23:49:03,639 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/data/7eaf3dbf9/5a6612d2daa14945b98c76dd92c040cb [2023-11-28 23:49:03,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:49:03,643 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:49:03,645 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:49:03,645 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:49:03,650 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:49:03,651 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:49:03" (1/1) ... [2023-11-28 23:49:03,652 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11093058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:49:03, skipping insertion in model container [2023-11-28 23:49:03,652 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:49:03" (1/1) ... [2023-11-28 23:49:03,684 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:49:03,809 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_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-28.i[919,932] [2023-11-28 23:49:03,886 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:49:03,903 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:49:03,914 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_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-28.i[919,932] [2023-11-28 23:49:03,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:49:03,983 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:49:03,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:49:03 WrapperNode [2023-11-28 23:49:03,984 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:49:03,984 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:49:03,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:49:03,985 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:49:03,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:49:03" (1/1) ... [2023-11-28 23:49:04,005 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:49:03" (1/1) ... [2023-11-28 23:49:04,036 INFO L138 Inliner]: procedures = 27, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 196 [2023-11-28 23:49:04,037 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:49:04,038 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:49:04,038 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:49:04,038 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:49:04,050 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:49:03" (1/1) ... [2023-11-28 23:49:04,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:49:03" (1/1) ... [2023-11-28 23:49:04,056 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:49:03" (1/1) ... [2023-11-28 23:49:04,072 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-28 23:49:04,072 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:49:03" (1/1) ... [2023-11-28 23:49:04,073 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:49:03" (1/1) ... [2023-11-28 23:49:04,087 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:49:03" (1/1) ... [2023-11-28 23:49:04,091 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:49:03" (1/1) ... [2023-11-28 23:49:04,095 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:49:03" (1/1) ... [2023-11-28 23:49:04,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:49:03" (1/1) ... [2023-11-28 23:49:04,103 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:49:04,104 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:49:04,104 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:49:04,104 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:49:04,105 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:49:03" (1/1) ... [2023-11-28 23:49:04,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:49:04,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:49:04,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:49:04,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:49:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:49:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-28 23:49:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-28 23:49:04,175 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-28 23:49:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:49:04,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:49:04,271 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:49:04,274 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:49:05,603 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:49:05,650 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:49:05,650 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 23:49:05,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:49:05 BoogieIcfgContainer [2023-11-28 23:49:05,651 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:49:05,654 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:49:05,654 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:49:05,656 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:49:05,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:49:03" (1/3) ... [2023-11-28 23:49:05,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74876cf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:49:05, skipping insertion in model container [2023-11-28 23:49:05,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:49:03" (2/3) ... [2023-11-28 23:49:05,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74876cf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:49:05, skipping insertion in model container [2023-11-28 23:49:05,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:49:05" (3/3) ... [2023-11-28 23:49:05,659 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-28.i [2023-11-28 23:49:05,674 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:49:05,674 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 23:49:05,717 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:49:05,722 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;@3a41f22b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:49:05,722 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 23:49:05,726 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 52 states have (on average 1.5) internal successors, (78), 53 states have internal predecessors, (78), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-28 23:49:05,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-28 23:49:05,740 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:49:05,741 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:49:05,741 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:49:05,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:49:05,746 INFO L85 PathProgramCache]: Analyzing trace with hash -848476428, now seen corresponding path program 1 times [2023-11-28 23:49:05,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:49:05,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [538158022] [2023-11-28 23:49:05,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:49:05,759 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 [2023-11-28 23:49:05,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:49:05,776 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/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) [2023-11-28 23:49:05,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/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 [2023-11-28 23:49:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:49:06,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-28 23:49:06,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:49:06,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 674 proven. 0 refuted. 0 times theorem prover too weak. 626 trivial. 0 not checked. [2023-11-28 23:49:06,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:49:06,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:49:06,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [538158022] [2023-11-28 23:49:06,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [538158022] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:49:06,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:49:06,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:49:06,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729464842] [2023-11-28 23:49:06,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:49:06,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 23:49:06,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:49:06,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 23:49:06,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:49:06,253 INFO L87 Difference]: Start difference. First operand has 81 states, 52 states have (on average 1.5) internal successors, (78), 53 states have internal predecessors, (78), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) 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, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-28 23:49:06,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:49:06,699 INFO L93 Difference]: Finished difference Result 159 states and 284 transitions. [2023-11-28 23:49:06,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 23:49:06,709 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, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 168 [2023-11-28 23:49:06,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:49:06,716 INFO L225 Difference]: With dead ends: 159 [2023-11-28 23:49:06,716 INFO L226 Difference]: Without dead ends: 79 [2023-11-28 23:49:06,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:49:06,722 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 23:49:06,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 23:49:06,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-28 23:49:06,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2023-11-28 23:49:06,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 51 states have (on average 1.411764705882353) internal successors, (72), 51 states have internal predecessors, (72), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-28 23:49:06,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 124 transitions. [2023-11-28 23:49:06,764 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 124 transitions. Word has length 168 [2023-11-28 23:49:06,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:49:06,765 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 124 transitions. [2023-11-28 23:49:06,765 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, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-28 23:49:06,765 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 124 transitions. [2023-11-28 23:49:06,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-28 23:49:06,768 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:49:06,769 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:49:06,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/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 [2023-11-28 23:49:06,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/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 [2023-11-28 23:49:06,970 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 23:49:06,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:49:06,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1951355782, now seen corresponding path program 1 times [2023-11-28 23:49:06,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:49:06,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551360920] [2023-11-28 23:49:06,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:49:06,972 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 [2023-11-28 23:49:06,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:49:06,973 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/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) [2023-11-28 23:49:06,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7391deb7-e6c7-4adc-afa7-5f106e9f87aa/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 [2023-11-28 23:49:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:49:07,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-28 23:49:07,359 INFO L285 TraceCheckSpWp]: Computing forward predicates...