./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/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_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/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_9c8084e3-3efe-4590-8421-2c2eeae12564/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 c2b5d83791f5c517cc904865b76453ec006da14f7434583f731bc2f7adcccacf --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:21:19,908 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:21:19,975 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-28 20:21:19,980 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:21:19,981 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:21:20,006 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:21:20,007 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:21:20,008 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:21:20,008 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:21:20,009 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:21:20,009 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:21:20,010 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:21:20,011 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:21:20,011 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:21:20,012 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:21:20,012 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:21:20,013 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:21:20,013 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:21:20,014 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:21:20,014 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:21:20,015 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:21:20,015 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:21:20,016 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:21:20,016 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:21:20,017 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:21:20,017 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:21:20,018 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:21:20,018 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:21:20,019 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:21:20,019 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:21:20,019 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:21:20,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:21:20,020 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:21:20,021 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:21:20,021 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:21:20,021 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:21:20,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:21:20,022 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:21:20,023 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:21:20,023 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:21:20,023 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:21:20,023 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:21:20,024 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_9c8084e3-3efe-4590-8421-2c2eeae12564/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2b5d83791f5c517cc904865b76453ec006da14f7434583f731bc2f7adcccacf [2023-11-28 20:21:20,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:21:20,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:21:20,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:21:20,293 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:21:20,293 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:21:20,294 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i [2023-11-28 20:21:23,104 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:21:23,334 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:21:23,334 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i [2023-11-28 20:21:23,345 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/data/e06ae158f/324dae74060e4cb6bb498ca1d825be11/FLAG005dbdf5e [2023-11-28 20:21:23,358 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/data/e06ae158f/324dae74060e4cb6bb498ca1d825be11 [2023-11-28 20:21:23,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:21:23,362 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:21:23,363 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:21:23,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:21:23,368 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:21:23,369 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:21:23" (1/1) ... [2023-11-28 20:21:23,370 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bfbeeed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:21:23, skipping insertion in model container [2023-11-28 20:21:23,370 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:21:23" (1/1) ... [2023-11-28 20:21:23,402 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:21:23,537 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_9c8084e3-3efe-4590-8421-2c2eeae12564/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i[919,932] [2023-11-28 20:21:23,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:21:23,626 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:21:23,636 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_9c8084e3-3efe-4590-8421-2c2eeae12564/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i[919,932] [2023-11-28 20:21:23,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:21:23,695 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:21:23,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:21:23 WrapperNode [2023-11-28 20:21:23,695 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:21:23,696 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:21:23,696 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:21:23,696 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:21:23,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:21:23" (1/1) ... [2023-11-28 20:21:23,715 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:21:23" (1/1) ... [2023-11-28 20:21:23,766 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 253 [2023-11-28 20:21:23,767 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:21:23,768 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:21:23,768 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:21:23,768 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:21:23,777 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:21:23" (1/1) ... [2023-11-28 20:21:23,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:21:23" (1/1) ... [2023-11-28 20:21:23,783 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:21:23" (1/1) ... [2023-11-28 20:21:23,804 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 20:21:23,804 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:21:23" (1/1) ... [2023-11-28 20:21:23,805 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:21:23" (1/1) ... [2023-11-28 20:21:23,822 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:21:23" (1/1) ... [2023-11-28 20:21:23,826 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:21:23" (1/1) ... [2023-11-28 20:21:23,833 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:21:23" (1/1) ... [2023-11-28 20:21:23,837 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:21:23" (1/1) ... [2023-11-28 20:21:23,848 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:21:23,849 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:21:23,849 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:21:23,850 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:21:23,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:21:23" (1/1) ... [2023-11-28 20:21:23,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:21:23,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:21:23,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:21:23,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:21:23,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:21:23,920 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-28 20:21:23,921 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-28 20:21:23,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 20:21:23,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:21:23,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:21:24,007 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:21:24,009 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:21:24,465 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:21:24,542 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:21:24,543 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 20:21:24,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:21:24 BoogieIcfgContainer [2023-11-28 20:21:24,544 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:21:24,548 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:21:24,548 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:21:24,551 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:21:24,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:21:23" (1/3) ... [2023-11-28 20:21:24,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607113ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:21:24, skipping insertion in model container [2023-11-28 20:21:24,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:21:23" (2/3) ... [2023-11-28 20:21:24,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607113ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:21:24, skipping insertion in model container [2023-11-28 20:21:24,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:21:24" (3/3) ... [2023-11-28 20:21:24,555 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i [2023-11-28 20:21:24,575 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:21:24,575 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 20:21:24,624 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:21:24,631 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;@7710e2d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:21:24,631 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 20:21:24,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 71 states have (on average 1.6056338028169015) internal successors, (114), 72 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-28 20:21:24,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-28 20:21:24,648 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:21:24,649 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:21:24,650 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:21:24,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:21:24,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1436591532, now seen corresponding path program 1 times [2023-11-28 20:21:24,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:21:24,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546092596] [2023-11-28 20:21:24,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:24,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:21:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:21:24,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:21:24,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546092596] [2023-11-28 20:21:24,856 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-28 20:21:24,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161350396] [2023-11-28 20:21:24,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:24,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:24,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:21:24,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:21:24,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 20:21:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:21:25,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-28 20:21:25,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:21:25,105 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2023-11-28 20:21:25,105 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:21:25,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161350396] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:21:25,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:21:25,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:21:25,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912431914] [2023-11-28 20:21:25,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:21:25,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 20:21:25,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:21:25,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 20:21:25,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 20:21:25,148 INFO L87 Difference]: Start difference. First operand has 94 states, 71 states have (on average 1.6056338028169015) internal successors, (114), 72 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-28 20:21:25,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:21:25,188 INFO L93 Difference]: Finished difference Result 185 states and 326 transitions. [2023-11-28 20:21:25,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 20:21:25,191 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 136 [2023-11-28 20:21:25,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:21:25,198 INFO L225 Difference]: With dead ends: 185 [2023-11-28 20:21:25,198 INFO L226 Difference]: Without dead ends: 92 [2023-11-28 20:21:25,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 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 20:21:25,205 INFO L413 NwaCegarLoop]: 143 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, 143 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 20:21:25,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 143 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:21:25,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-28 20:21:25,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2023-11-28 20:21:25,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 70 states have (on average 1.5142857142857142) internal successors, (106), 70 states have internal predecessors, (106), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-28 20:21:25,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 146 transitions. [2023-11-28 20:21:25,252 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 146 transitions. Word has length 136 [2023-11-28 20:21:25,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:21:25,253 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 146 transitions. [2023-11-28 20:21:25,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-28 20:21:25,254 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 146 transitions. [2023-11-28 20:21:25,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-28 20:21:25,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:21:25,258 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:21:25,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-28 20:21:25,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-28 20:21:25,461 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:21:25,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:21:25,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1131583564, now seen corresponding path program 1 times [2023-11-28 20:21:25,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:21:25,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375116337] [2023-11-28 20:21:25,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:25,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:21:25,514 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:21:25,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [3518594] [2023-11-28 20:21:25,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:25,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:25,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:21:25,516 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:21:25,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-28 20:21:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:21:25,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:21:25,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:21:25,721 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-28 20:21:25,721 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:21:25,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:21:25,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375116337] [2023-11-28 20:21:25,722 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:21:25,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3518594] [2023-11-28 20:21:25,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3518594] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:21:25,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:21:25,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:21:25,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57192327] [2023-11-28 20:21:25,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:21:25,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:21:25,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:21:25,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:21:25,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:21:25,727 INFO L87 Difference]: Start difference. First operand 92 states and 146 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:21:25,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:21:25,815 INFO L93 Difference]: Finished difference Result 263 states and 416 transitions. [2023-11-28 20:21:25,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:21:25,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 136 [2023-11-28 20:21:25,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:21:25,819 INFO L225 Difference]: With dead ends: 263 [2023-11-28 20:21:25,819 INFO L226 Difference]: Without dead ends: 172 [2023-11-28 20:21:25,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:21:25,822 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 131 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:21:25,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 335 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:21:25,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-11-28 20:21:25,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 157. [2023-11-28 20:21:25,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 114 states have (on average 1.412280701754386) internal successors, (161), 114 states have internal predecessors, (161), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-28 20:21:25,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 241 transitions. [2023-11-28 20:21:25,863 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 241 transitions. Word has length 136 [2023-11-28 20:21:25,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:21:25,864 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 241 transitions. [2023-11-28 20:21:25,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:21:25,865 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 241 transitions. [2023-11-28 20:21:25,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-28 20:21:25,868 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:21:25,868 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:21:25,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-28 20:21:26,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:26,073 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:21:26,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:21:26,073 INFO L85 PathProgramCache]: Analyzing trace with hash 120466314, now seen corresponding path program 1 times [2023-11-28 20:21:26,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:21:26,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698829360] [2023-11-28 20:21:26,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:26,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:21:26,145 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:21:26,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1137766990] [2023-11-28 20:21:26,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:26,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:26,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:21:26,161 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:21:26,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-28 20:21:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:21:26,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:21:26,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:21:26,401 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-28 20:21:26,401 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:21:26,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:21:26,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698829360] [2023-11-28 20:21:26,402 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:21:26,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137766990] [2023-11-28 20:21:26,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137766990] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:21:26,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:21:26,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:21:26,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124331236] [2023-11-28 20:21:26,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:21:26,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:21:26,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:21:26,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:21:26,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:21:26,405 INFO L87 Difference]: Start difference. First operand 157 states and 241 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:21:26,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:21:26,500 INFO L93 Difference]: Finished difference Result 367 states and 567 transitions. [2023-11-28 20:21:26,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:21:26,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 136 [2023-11-28 20:21:26,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:21:26,504 INFO L225 Difference]: With dead ends: 367 [2023-11-28 20:21:26,504 INFO L226 Difference]: Without dead ends: 211 [2023-11-28 20:21:26,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:21:26,507 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 144 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:21:26,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 593 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:21:26,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-28 20:21:26,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 157. [2023-11-28 20:21:26,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 114 states have (on average 1.394736842105263) internal successors, (159), 114 states have internal predecessors, (159), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-28 20:21:26,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 239 transitions. [2023-11-28 20:21:26,537 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 239 transitions. Word has length 136 [2023-11-28 20:21:26,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:21:26,538 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 239 transitions. [2023-11-28 20:21:26,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:21:26,539 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 239 transitions. [2023-11-28 20:21:26,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-28 20:21:26,541 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:21:26,541 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:21:26,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-28 20:21:26,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:26,747 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:21:26,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:21:26,747 INFO L85 PathProgramCache]: Analyzing trace with hash -833247089, now seen corresponding path program 1 times [2023-11-28 20:21:26,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:21:26,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709803195] [2023-11-28 20:21:26,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:26,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:21:26,783 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:21:26,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [30199788] [2023-11-28 20:21:26,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:26,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:26,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:21:26,785 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:21:26,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-28 20:21:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:21:26,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-28 20:21:26,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:21:49,447 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-28 20:21:49,447 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:21:49,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:21:49,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709803195] [2023-11-28 20:21:49,448 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:21:49,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30199788] [2023-11-28 20:21:49,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30199788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:21:49,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:21:49,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-28 20:21:49,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68734622] [2023-11-28 20:21:49,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:21:49,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-28 20:21:49,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:21:49,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-28 20:21:49,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:21:49,451 INFO L87 Difference]: Start difference. First operand 157 states and 239 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:21:52,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:21:52,691 INFO L93 Difference]: Finished difference Result 417 states and 617 transitions. [2023-11-28 20:21:52,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-28 20:21:52,692 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 138 [2023-11-28 20:21:52,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:21:52,695 INFO L225 Difference]: With dead ends: 417 [2023-11-28 20:21:52,695 INFO L226 Difference]: Without dead ends: 261 [2023-11-28 20:21:52,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-11-28 20:21:52,697 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 195 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:21:52,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 527 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-28 20:21:52,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-11-28 20:21:52,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 239. [2023-11-28 20:21:52,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 190 states have (on average 1.3789473684210527) internal successors, (262), 192 states have internal predecessors, (262), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-28 20:21:52,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 350 transitions. [2023-11-28 20:21:52,739 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 350 transitions. Word has length 138 [2023-11-28 20:21:52,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:21:52,740 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 350 transitions. [2023-11-28 20:21:52,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:21:52,740 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 350 transitions. [2023-11-28 20:21:52,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-28 20:21:52,742 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:21:52,742 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:21:52,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-28 20:21:52,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:52,944 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:21:52,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:21:52,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1467575501, now seen corresponding path program 1 times [2023-11-28 20:21:52,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:21:52,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302829380] [2023-11-28 20:21:52,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:52,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:21:52,975 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:21:52,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [731217706] [2023-11-28 20:21:52,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:52,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:52,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:21:52,977 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:21:52,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-28 20:21:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:21:53,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 20:21:53,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:21:53,310 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-28 20:21:53,310 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:21:53,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:21:53,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302829380] [2023-11-28 20:21:53,310 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:21:53,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731217706] [2023-11-28 20:21:53,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731217706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:21:53,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:21:53,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:21:53,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412040321] [2023-11-28 20:21:53,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:21:53,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:21:53,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:21:53,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:21:53,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:21:53,313 INFO L87 Difference]: Start difference. First operand 239 states and 350 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:21:53,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:21:53,533 INFO L93 Difference]: Finished difference Result 724 states and 1070 transitions. [2023-11-28 20:21:53,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:21:53,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 138 [2023-11-28 20:21:53,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:21:53,539 INFO L225 Difference]: With dead ends: 724 [2023-11-28 20:21:53,539 INFO L226 Difference]: Without dead ends: 486 [2023-11-28 20:21:53,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:21:53,542 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 170 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:21:53,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 623 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:21:53,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2023-11-28 20:21:53,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 429. [2023-11-28 20:21:53,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 335 states have (on average 1.3611940298507463) internal successors, (456), 338 states have internal predecessors, (456), 86 states have call successors, (86), 7 states have call predecessors, (86), 7 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2023-11-28 20:21:53,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 628 transitions. [2023-11-28 20:21:53,601 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 628 transitions. Word has length 138 [2023-11-28 20:21:53,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:21:53,602 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 628 transitions. [2023-11-28 20:21:53,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:21:53,602 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 628 transitions. [2023-11-28 20:21:53,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-28 20:21:53,604 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:21:53,605 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:21:53,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-28 20:21:53,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:53,805 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:21:53,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:21:53,806 INFO L85 PathProgramCache]: Analyzing trace with hash 445152928, now seen corresponding path program 1 times [2023-11-28 20:21:53,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:21:53,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508244053] [2023-11-28 20:21:53,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:53,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:21:53,829 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:21:53,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2041222107] [2023-11-28 20:21:53,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:53,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:53,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:21:53,831 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:21:53,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-28 20:21:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:21:53,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 20:21:53,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:21:54,073 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-28 20:21:54,073 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:21:54,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:21:54,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508244053] [2023-11-28 20:21:54,073 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:21:54,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041222107] [2023-11-28 20:21:54,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041222107] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:21:54,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:21:54,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:21:54,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764016911] [2023-11-28 20:21:54,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:21:54,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:21:54,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:21:54,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:21:54,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:21:54,075 INFO L87 Difference]: Start difference. First operand 429 states and 628 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:21:54,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:21:54,139 INFO L93 Difference]: Finished difference Result 912 states and 1342 transitions. [2023-11-28 20:21:54,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:21:54,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 139 [2023-11-28 20:21:54,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:21:54,143 INFO L225 Difference]: With dead ends: 912 [2023-11-28 20:21:54,143 INFO L226 Difference]: Without dead ends: 484 [2023-11-28 20:21:54,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:21:54,146 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 26 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:21:54,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 266 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:21:54,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2023-11-28 20:21:54,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 470. [2023-11-28 20:21:54,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 355 states have (on average 1.3464788732394366) internal successors, (478), 358 states have internal predecessors, (478), 106 states have call successors, (106), 8 states have call predecessors, (106), 8 states have return successors, (106), 103 states have call predecessors, (106), 106 states have call successors, (106) [2023-11-28 20:21:54,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 690 transitions. [2023-11-28 20:21:54,194 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 690 transitions. Word has length 139 [2023-11-28 20:21:54,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:21:54,194 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 690 transitions. [2023-11-28 20:21:54,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:21:54,195 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 690 transitions. [2023-11-28 20:21:54,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-28 20:21:54,197 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:21:54,197 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:21:54,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-28 20:21:54,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-28 20:21:54,398 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:21:54,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:21:54,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1360285406, now seen corresponding path program 1 times [2023-11-28 20:21:54,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:21:54,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547247465] [2023-11-28 20:21:54,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:54,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:21:54,421 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:21:54,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [858225553] [2023-11-28 20:21:54,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:54,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:54,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:21:54,422 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:21:54,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-28 20:21:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:21:54,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-28 20:21:54,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:21:55,329 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-28 20:21:55,329 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:21:55,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:21:55,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547247465] [2023-11-28 20:21:55,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:21:55,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858225553] [2023-11-28 20:21:55,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858225553] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:21:55,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:21:55,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:21:55,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243031579] [2023-11-28 20:21:55,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:21:55,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:21:55,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:21:55,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:21:55,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:21:55,332 INFO L87 Difference]: Start difference. First operand 470 states and 690 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:21:55,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:21:55,597 INFO L93 Difference]: Finished difference Result 1003 states and 1469 transitions. [2023-11-28 20:21:55,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:21:55,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 139 [2023-11-28 20:21:55,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:21:55,600 INFO L225 Difference]: With dead ends: 1003 [2023-11-28 20:21:55,600 INFO L226 Difference]: Without dead ends: 575 [2023-11-28 20:21:55,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:21:55,602 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 124 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:21:55,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 400 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:21:55,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-11-28 20:21:55,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 544. [2023-11-28 20:21:55,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 429 states have (on average 1.3496503496503496) internal successors, (579), 432 states have internal predecessors, (579), 106 states have call successors, (106), 8 states have call predecessors, (106), 8 states have return successors, (106), 103 states have call predecessors, (106), 106 states have call successors, (106) [2023-11-28 20:21:55,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 791 transitions. [2023-11-28 20:21:55,655 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 791 transitions. Word has length 139 [2023-11-28 20:21:55,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:21:55,655 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 791 transitions. [2023-11-28 20:21:55,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:21:55,656 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 791 transitions. [2023-11-28 20:21:55,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-28 20:21:55,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:21:55,657 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:21:55,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-28 20:21:55,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:55,858 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:21:55,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:21:55,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1910410313, now seen corresponding path program 1 times [2023-11-28 20:21:55,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:21:55,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869529306] [2023-11-28 20:21:55,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:55,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:21:55,883 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:21:55,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [427940810] [2023-11-28 20:21:55,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:55,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:55,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:21:55,884 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:21:55,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-28 20:21:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:21:55,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:21:56,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:21:56,024 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-28 20:21:56,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:21:56,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:21:56,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869529306] [2023-11-28 20:21:56,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:21:56,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427940810] [2023-11-28 20:21:56,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427940810] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:21:56,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:21:56,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:21:56,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004863592] [2023-11-28 20:21:56,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:21:56,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:21:56,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:21:56,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:21:56,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:21:56,027 INFO L87 Difference]: Start difference. First operand 544 states and 791 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:21:56,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:21:56,193 INFO L93 Difference]: Finished difference Result 1211 states and 1767 transitions. [2023-11-28 20:21:56,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:21:56,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 140 [2023-11-28 20:21:56,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:21:56,200 INFO L225 Difference]: With dead ends: 1211 [2023-11-28 20:21:56,200 INFO L226 Difference]: Without dead ends: 738 [2023-11-28 20:21:56,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 138 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 20:21:56,203 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 277 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:21:56,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 427 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:21:56,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2023-11-28 20:21:56,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 702. [2023-11-28 20:21:56,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 571 states have (on average 1.3380035026269703) internal successors, (764), 578 states have internal predecessors, (764), 118 states have call successors, (118), 12 states have call predecessors, (118), 12 states have return successors, (118), 111 states have call predecessors, (118), 118 states have call successors, (118) [2023-11-28 20:21:56,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 1000 transitions. [2023-11-28 20:21:56,282 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 1000 transitions. Word has length 140 [2023-11-28 20:21:56,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:21:56,282 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 1000 transitions. [2023-11-28 20:21:56,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:21:56,283 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 1000 transitions. [2023-11-28 20:21:56,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-28 20:21:56,284 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:21:56,284 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:21:56,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-28 20:21:56,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:56,488 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:21:56,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:21:56,488 INFO L85 PathProgramCache]: Analyzing trace with hash -484981053, now seen corresponding path program 1 times [2023-11-28 20:21:56,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:21:56,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33452023] [2023-11-28 20:21:56,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:56,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:21:56,508 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:21:56,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1513087192] [2023-11-28 20:21:56,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:56,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:56,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:21:56,509 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:21:56,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-28 20:21:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:21:56,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:21:56,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:21:56,718 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-28 20:21:56,719 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:21:56,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:21:56,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33452023] [2023-11-28 20:21:56,719 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:21:56,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513087192] [2023-11-28 20:21:56,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513087192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:21:56,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:21:56,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:21:56,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589849723] [2023-11-28 20:21:56,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:21:56,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:21:56,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:21:56,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:21:56,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:21:56,722 INFO L87 Difference]: Start difference. First operand 702 states and 1000 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:21:56,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:21:56,871 INFO L93 Difference]: Finished difference Result 1386 states and 1953 transitions. [2023-11-28 20:21:56,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:21:56,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 140 [2023-11-28 20:21:56,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:21:56,876 INFO L225 Difference]: With dead ends: 1386 [2023-11-28 20:21:56,876 INFO L226 Difference]: Without dead ends: 815 [2023-11-28 20:21:56,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 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 20:21:56,878 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 42 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:21:56,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 380 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:21:56,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2023-11-28 20:21:56,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 712. [2023-11-28 20:21:56,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 581 states have (on average 1.3218588640275388) internal successors, (768), 588 states have internal predecessors, (768), 118 states have call successors, (118), 12 states have call predecessors, (118), 12 states have return successors, (118), 111 states have call predecessors, (118), 118 states have call successors, (118) [2023-11-28 20:21:56,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 1004 transitions. [2023-11-28 20:21:56,944 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 1004 transitions. Word has length 140 [2023-11-28 20:21:56,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:21:56,945 INFO L495 AbstractCegarLoop]: Abstraction has 712 states and 1004 transitions. [2023-11-28 20:21:56,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:21:56,945 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 1004 transitions. [2023-11-28 20:21:56,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-28 20:21:56,946 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:21:56,946 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:21:56,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-28 20:21:57,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:57,147 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:21:57,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:21:57,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2076883757, now seen corresponding path program 1 times [2023-11-28 20:21:57,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:21:57,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223604970] [2023-11-28 20:21:57,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:57,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:21:57,168 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:21:57,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1498990852] [2023-11-28 20:21:57,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:57,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:57,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:21:57,170 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:21:57,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-28 20:21:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:21:57,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:21:57,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:21:57,349 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 289 proven. 12 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2023-11-28 20:21:57,349 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:21:57,466 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-28 20:21:57,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:21:57,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223604970] [2023-11-28 20:21:57,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:21:57,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498990852] [2023-11-28 20:21:57,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498990852] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:21:57,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:21:57,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-28 20:21:57,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658002788] [2023-11-28 20:21:57,468 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:21:57,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 20:21:57,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:21:57,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 20:21:57,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:21:57,469 INFO L87 Difference]: Start difference. First operand 712 states and 1004 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-28 20:21:57,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:21:57,644 INFO L93 Difference]: Finished difference Result 855 states and 1191 transitions. [2023-11-28 20:21:57,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 20:21:57,644 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 141 [2023-11-28 20:21:57,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:21:57,646 INFO L225 Difference]: With dead ends: 855 [2023-11-28 20:21:57,647 INFO L226 Difference]: Without dead ends: 212 [2023-11-28 20:21:57,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 274 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:21:57,649 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 159 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:21:57,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 233 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:21:57,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-11-28 20:21:57,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 204. [2023-11-28 20:21:57,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 154 states have (on average 1.2597402597402598) internal successors, (194), 155 states have internal predecessors, (194), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-28 20:21:57,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 278 transitions. [2023-11-28 20:21:57,674 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 278 transitions. Word has length 141 [2023-11-28 20:21:57,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:21:57,675 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 278 transitions. [2023-11-28 20:21:57,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-28 20:21:57,675 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 278 transitions. [2023-11-28 20:21:57,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-28 20:21:57,676 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:21:57,677 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:21:57,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-28 20:21:57,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:57,880 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:21:57,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:21:57,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1636450067, now seen corresponding path program 1 times [2023-11-28 20:21:57,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:21:57,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368644518] [2023-11-28 20:21:57,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:57,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:21:57,902 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:21:57,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2039248811] [2023-11-28 20:21:57,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:57,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:57,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:21:57,904 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:21:57,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-28 20:21:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:21:58,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-28 20:21:58,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:21:58,316 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-28 20:21:58,316 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:21:58,621 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-28 20:21:58,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:21:58,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368644518] [2023-11-28 20:21:58,621 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:21:58,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039248811] [2023-11-28 20:21:58,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039248811] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-28 20:21:58,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:21:58,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 16 [2023-11-28 20:21:58,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821674469] [2023-11-28 20:21:58,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:21:58,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-28 20:21:58,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:21:58,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-28 20:21:58,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2023-11-28 20:21:58,624 INFO L87 Difference]: Start difference. First operand 204 states and 278 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:21:59,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:21:59,020 INFO L93 Difference]: Finished difference Result 210 states and 285 transitions. [2023-11-28 20:21:59,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 20:21:59,021 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 141 [2023-11-28 20:21:59,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:21:59,023 INFO L225 Difference]: With dead ends: 210 [2023-11-28 20:21:59,023 INFO L226 Difference]: Without dead ends: 208 [2023-11-28 20:21:59,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 264 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2023-11-28 20:21:59,024 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 141 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:21:59,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 512 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 20:21:59,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-11-28 20:21:59,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2023-11-28 20:21:59,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 158 states have (on average 1.2531645569620253) internal successors, (198), 159 states have internal predecessors, (198), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-28 20:21:59,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 282 transitions. [2023-11-28 20:21:59,052 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 282 transitions. Word has length 141 [2023-11-28 20:21:59,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:21:59,053 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 282 transitions. [2023-11-28 20:21:59,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:21:59,053 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 282 transitions. [2023-11-28 20:21:59,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-28 20:21:59,054 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:21:59,054 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:21:59,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-28 20:21:59,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:59,255 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:21:59,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:21:59,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1608635292, now seen corresponding path program 1 times [2023-11-28 20:21:59,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:21:59,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844842405] [2023-11-28 20:21:59,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:59,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:21:59,276 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:21:59,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [904468328] [2023-11-28 20:21:59,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:59,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:59,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:21:59,278 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:21:59,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-28 20:21:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:21:59,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:21:59,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:21:59,449 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-28 20:21:59,449 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:21:59,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:21:59,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844842405] [2023-11-28 20:21:59,449 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:21:59,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904468328] [2023-11-28 20:21:59,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904468328] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:21:59,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:21:59,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:21:59,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343021855] [2023-11-28 20:21:59,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:21:59,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:21:59,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:21:59,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:21:59,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:21:59,451 INFO L87 Difference]: Start difference. First operand 208 states and 282 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:21:59,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:21:59,530 INFO L93 Difference]: Finished difference Result 365 states and 484 transitions. [2023-11-28 20:21:59,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:21:59,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 141 [2023-11-28 20:21:59,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:21:59,532 INFO L225 Difference]: With dead ends: 365 [2023-11-28 20:21:59,533 INFO L226 Difference]: Without dead ends: 227 [2023-11-28 20:21:59,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 138 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 20:21:59,534 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 22 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:21:59,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 314 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:21:59,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-11-28 20:21:59,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 208. [2023-11-28 20:21:59,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 158 states have (on average 1.2341772151898733) internal successors, (195), 159 states have internal predecessors, (195), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-28 20:21:59,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 279 transitions. [2023-11-28 20:21:59,562 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 279 transitions. Word has length 141 [2023-11-28 20:21:59,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:21:59,563 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 279 transitions. [2023-11-28 20:21:59,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:21:59,563 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 279 transitions. [2023-11-28 20:21:59,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-28 20:21:59,564 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:21:59,564 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:21:59,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-28 20:21:59,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-28 20:21:59,765 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:21:59,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:21:59,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1832040249, now seen corresponding path program 1 times [2023-11-28 20:21:59,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:21:59,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596790483] [2023-11-28 20:21:59,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:59,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:21:59,785 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:21:59,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [320700777] [2023-11-28 20:21:59,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:21:59,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:21:59,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:21:59,786 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:21:59,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-28 20:21:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:21:59,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-28 20:21:59,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:22:34,184 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-28 20:22:34,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:22:34,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:22:34,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596790483] [2023-11-28 20:22:34,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:22:34,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320700777] [2023-11-28 20:22:34,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320700777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:22:34,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:22:34,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-28 20:22:34,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311394653] [2023-11-28 20:22:34,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:22:34,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 20:22:34,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:22:34,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 20:22:34,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:22:34,186 INFO L87 Difference]: Start difference. First operand 208 states and 279 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:22:35,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-28 20:22:38,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:22:38,582 INFO L93 Difference]: Finished difference Result 368 states and 482 transitions. [2023-11-28 20:22:38,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-28 20:22:38,582 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 142 [2023-11-28 20:22:38,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:22:38,584 INFO L225 Difference]: With dead ends: 368 [2023-11-28 20:22:38,584 INFO L226 Difference]: Without dead ends: 233 [2023-11-28 20:22:38,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2023-11-28 20:22:38,585 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 127 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:22:38,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 520 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-28 20:22:38,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-11-28 20:22:38,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 213. [2023-11-28 20:22:38,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 163 states have (on average 1.2269938650306749) internal successors, (200), 164 states have internal predecessors, (200), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-28 20:22:38,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 284 transitions. [2023-11-28 20:22:38,619 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 284 transitions. Word has length 142 [2023-11-28 20:22:38,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:22:38,620 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 284 transitions. [2023-11-28 20:22:38,620 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:22:38,620 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 284 transitions. [2023-11-28 20:22:38,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-28 20:22:38,621 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:22:38,621 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:22:38,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-28 20:22:38,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:22:38,822 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:22:38,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:22:38,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1613185531, now seen corresponding path program 1 times [2023-11-28 20:22:38,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:22:38,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532443189] [2023-11-28 20:22:38,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:22:38,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:22:38,842 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:22:38,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1472292841] [2023-11-28 20:22:38,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:22:38,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:22:38,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:22:38,844 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:22:38,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-28 20:22:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:22:39,085 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:22:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:22:39,212 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:22:39,213 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-28 20:22:39,214 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-28 20:22:39,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-28 20:22:39,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:22:39,418 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:22:39,421 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 20:22:39,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short23 could not be translated [2023-11-28 20:22:39,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short23 could not be translated [2023-11-28 20:22:39,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short23 could not be translated [2023-11-28 20:22:39,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite21 could not be translated [2023-11-28 20:22:39,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite22 could not be translated [2023-11-28 20:22:39,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short23 could not be translated [2023-11-28 20:22:39,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite21 could not be translated [2023-11-28 20:22:39,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite22 could not be translated [2023-11-28 20:22:39,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite21 could not be translated [2023-11-28 20:22:39,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short23 could not be translated [2023-11-28 20:22:39,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short23 could not be translated [2023-11-28 20:22:39,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short26 could not be translated [2023-11-28 20:22:39,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite21 could not be translated [2023-11-28 20:22:39,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite22 could not be translated [2023-11-28 20:22:39,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:22:39 BoogieIcfgContainer [2023-11-28 20:22:39,524 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 20:22:39,525 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:22:39,525 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:22:39,525 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:22:39,525 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:21:24" (3/4) ... [2023-11-28 20:22:39,527 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-28 20:22:39,527 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:22:39,528 INFO L158 Benchmark]: Toolchain (without parser) took 76166.24ms. Allocated memory was 178.3MB in the beginning and 373.3MB in the end (delta: 195.0MB). Free memory was 142.8MB in the beginning and 281.7MB in the end (delta: -138.9MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. [2023-11-28 20:22:39,528 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 178.3MB. Free memory was 142.5MB in the beginning and 142.5MB in the end (delta: 16.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:22:39,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.88ms. Allocated memory is still 178.3MB. Free memory was 142.2MB in the beginning and 126.7MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-28 20:22:39,529 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.03ms. Allocated memory is still 178.3MB. Free memory was 126.7MB in the beginning and 120.5MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-28 20:22:39,529 INFO L158 Benchmark]: Boogie Preprocessor took 80.92ms. Allocated memory is still 178.3MB. Free memory was 120.5MB in the beginning and 112.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-28 20:22:39,529 INFO L158 Benchmark]: RCFGBuilder took 694.62ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 112.1MB in the beginning and 179.9MB in the end (delta: -67.9MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2023-11-28 20:22:39,530 INFO L158 Benchmark]: TraceAbstraction took 74976.64ms. Allocated memory was 213.9MB in the beginning and 373.3MB in the end (delta: 159.4MB). Free memory was 178.9MB in the beginning and 281.7MB in the end (delta: -102.8MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2023-11-28 20:22:39,530 INFO L158 Benchmark]: Witness Printer took 2.79ms. Allocated memory is still 373.3MB. Free memory is still 281.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:22:39,532 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 178.3MB. Free memory was 142.5MB in the beginning and 142.5MB in the end (delta: 16.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.88ms. Allocated memory is still 178.3MB. Free memory was 142.2MB in the beginning and 126.7MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.03ms. Allocated memory is still 178.3MB. Free memory was 126.7MB in the beginning and 120.5MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.92ms. Allocated memory is still 178.3MB. Free memory was 120.5MB in the beginning and 112.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 694.62ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 112.1MB in the beginning and 179.9MB in the end (delta: -67.9MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. * TraceAbstraction took 74976.64ms. Allocated memory was 213.9MB in the beginning and 373.3MB in the end (delta: 159.4MB). Free memory was 178.9MB in the beginning and 281.7MB in the end (delta: -102.8MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * Witness Printer took 2.79ms. Allocated memory is still 373.3MB. Free memory is still 281.7MB. 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~short23 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~ite21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short23 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite21 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~short26 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite22 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 someBinaryFLOATComparisonOperation at line 174, overapproximation of someBinaryDOUBLEComparisonOperation at line 79. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 2; [L23] signed long int var_1_5 = 5; [L24] unsigned char var_1_8 = 0; [L25] float var_1_9 = 128.6; [L26] float var_1_10 = 32.5; [L27] unsigned char var_1_11 = 16; [L28] unsigned char var_1_12 = 64; [L29] unsigned char var_1_13 = 4; [L30] unsigned char var_1_14 = 4; [L31] unsigned long int var_1_15 = 0; [L32] signed short int var_1_16 = 0; [L33] signed char var_1_17 = 1; [L34] signed char var_1_18 = -1; [L35] signed char var_1_19 = 0; [L36] signed long int var_1_20 = -64; [L37] unsigned char var_1_22 = 0; [L38] unsigned char var_1_23 = 0; [L39] signed short int var_1_24 = -4; [L40] unsigned short int var_1_29 = 8; [L41] unsigned short int var_1_33 = 48416; [L42] unsigned char var_1_35 = 4; [L43] unsigned long int var_1_37 = 32; [L44] unsigned char var_1_38 = 8; [L45] double var_1_40 = 31.75; [L46] double var_1_41 = 5.5; [L47] signed char var_1_43 = 100; [L48] signed long int last_1_var_1_5 = 5; [L178] isInitial = 1 [L179] FCALL initially() [L180] COND TRUE 1 [L181] CALL updateLastVariables() [L171] last_1_var_1_5 = var_1_5 [L181] RET updateLastVariables() [L182] CALL updateVariables() [L137] var_1_9 = __VERIFIER_nondet_float() [L138] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_10=65/2, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_5=5, var_1_10=65/2, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L138] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_5=5, var_1_10=65/2, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L139] var_1_10 = __VERIFIER_nondet_float() [L140] CALL assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_5=5, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L140] RET assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L141] var_1_11 = __VERIFIER_nondet_uchar() [L142] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_5=5, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L142] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L143] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L143] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L144] var_1_12 = __VERIFIER_nondet_uchar() [L145] CALL assume_abort_if_not(var_1_12 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L145] RET assume_abort_if_not(var_1_12 >= 63) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L146] CALL assume_abort_if_not(var_1_12 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L146] RET assume_abort_if_not(var_1_12 <= 127) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L147] var_1_13 = __VERIFIER_nondet_uchar() [L148] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L148] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L149] CALL assume_abort_if_not(var_1_13 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L149] RET assume_abort_if_not(var_1_13 <= 63) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L150] var_1_14 = __VERIFIER_nondet_uchar() [L151] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L151] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L152] CALL assume_abort_if_not(var_1_14 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L152] RET assume_abort_if_not(var_1_14 <= 127) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L153] var_1_18 = __VERIFIER_nondet_char() [L154] CALL assume_abort_if_not(var_1_18 >= -31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L154] RET assume_abort_if_not(var_1_18 >= -31) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L155] CALL assume_abort_if_not(var_1_18 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L155] RET assume_abort_if_not(var_1_18 <= 32) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L156] var_1_19 = __VERIFIER_nondet_char() [L157] CALL assume_abort_if_not(var_1_19 >= -15) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L157] RET assume_abort_if_not(var_1_19 >= -15) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L158] CALL assume_abort_if_not(var_1_19 <= 16) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L158] RET assume_abort_if_not(var_1_19 <= 16) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L159] var_1_23 = __VERIFIER_nondet_uchar() [L160] CALL assume_abort_if_not(var_1_23 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L160] RET assume_abort_if_not(var_1_23 >= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L161] CALL assume_abort_if_not(var_1_23 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L161] RET assume_abort_if_not(var_1_23 <= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=48416, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L162] var_1_33 = __VERIFIER_nondet_ushort() [L163] CALL assume_abort_if_not(var_1_33 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L163] RET assume_abort_if_not(var_1_33 >= 32767) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L164] CALL assume_abort_if_not(var_1_33 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L164] RET assume_abort_if_not(var_1_33 <= 65534) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_40=127/4, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L165] var_1_40 = __VERIFIER_nondet_double() [L166] CALL assume_abort_if_not((var_1_40 >= 0.0F && var_1_40 <= -1.0e-20F) || (var_1_40 <= 9223372.036854776000e+12F && var_1_40 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L166] RET assume_abort_if_not((var_1_40 >= 0.0F && var_1_40 <= -1.0e-20F) || (var_1_40 <= 9223372.036854776000e+12F && var_1_40 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_41=11/2, var_1_43=100, var_1_5=5, var_1_8=0] [L167] var_1_41 = __VERIFIER_nondet_double() [L168] CALL assume_abort_if_not((var_1_41 >= 0.0F && var_1_41 <= -1.0e-20F) || (var_1_41 <= 9223372.036854776000e+12F && var_1_41 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_43=100, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_43=100, var_1_5=5, var_1_8=0] [L168] RET assume_abort_if_not((var_1_41 >= 0.0F && var_1_41 <= -1.0e-20F) || (var_1_41 <= 9223372.036854776000e+12F && var_1_41 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=-4, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_43=100, var_1_5=5, var_1_8=0] [L182] RET updateVariables() [L183] CALL step() [L52] COND FALSE !(\read(var_1_23)) [L57] var_1_24 = ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=8, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_43=100, var_1_5=5, var_1_8=0] [L59] COND FALSE !((var_1_20 / var_1_12) < var_1_11) [L62] var_1_29 = ((((((((((((var_1_12) < (var_1_8)) ? (var_1_12) : (var_1_8)))) > (var_1_12)) ? (((((var_1_12) < (var_1_8)) ? (var_1_12) : (var_1_8)))) : (var_1_12)))) > ((var_1_33 - var_1_11))) ? (((((((((var_1_12) < (var_1_8)) ? (var_1_12) : (var_1_8)))) > (var_1_12)) ? (((((var_1_12) < (var_1_8)) ? (var_1_12) : (var_1_8)))) : (var_1_12)))) : ((var_1_33 - var_1_11)))) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_43=100, var_1_5=5, var_1_8=0] [L64] COND FALSE !(\read(var_1_22)) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=32, var_1_38=8, var_1_43=100, var_1_5=5, var_1_8=0] [L67] COND TRUE ((((var_1_8) < (var_1_12)) ? (var_1_8) : (var_1_12))) >= var_1_20 [L68] var_1_37 = var_1_8 VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=8, var_1_43=100, var_1_5=5, var_1_8=0] [L70] COND FALSE !((var_1_9 * (var_1_40 - var_1_41)) >= var_1_9) [L77] var_1_38 = var_1_14 VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=100, var_1_5=5, var_1_8=0] [L79] COND FALSE !(((((var_1_10) > (64.75f)) ? (var_1_10) : (64.75f))) <= var_1_40) [L86] var_1_43 = var_1_13 VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=60, var_1_5=5, var_1_8=0] [L88] COND FALSE !(var_1_9 > var_1_10) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=60, var_1_5=5, var_1_8=0] [L91] var_1_20 = var_1_8 [L92] var_1_22 = var_1_23 VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=60, var_1_5=5, var_1_8=0] [L93] COND FALSE !(\read(var_1_22)) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=60, var_1_5=5, var_1_8=0] [L96] var_1_16 = (((((var_1_15) < (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12))))) ? (var_1_15) : (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12)))))) - var_1_11) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=60, var_1_5=5, var_1_8=0] [L97] COND FALSE !(\read(var_1_22)) [L104] var_1_17 = -32 VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=60, var_1_5=5, var_1_8=0] [L106] unsigned long int stepLocal_1 = var_1_20 + var_1_15; [L107] signed long int stepLocal_0 = var_1_20; VAL [isInitial=1, last_1_var_1_5=5, stepLocal_0=0, stepLocal_1=0, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=60, var_1_5=5, var_1_8=0] [L108] COND TRUE stepLocal_1 < -200 VAL [isInitial=1, last_1_var_1_5=5, stepLocal_0=0, stepLocal_1=0, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=-31, var_1_19=-15, var_1_1=2, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=60, var_1_5=5, var_1_8=0] [L109] COND FALSE !(\read(var_1_22)) [L116] var_1_1 = var_1_20 VAL [isInitial=1, last_1_var_1_5=5, stepLocal_0=0, stepLocal_1=0, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=-31, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=60, var_1_5=5, var_1_8=0] [L121] signed long int stepLocal_4 = 256; [L122] unsigned char stepLocal_3 = var_1_22; [L123] unsigned long int stepLocal_2 = var_1_15; VAL [isInitial=1, last_1_var_1_5=5, stepLocal_0=0, stepLocal_1=0, stepLocal_2=0, stepLocal_3=0, stepLocal_4=256, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=-31, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=60, var_1_5=5, var_1_8=0] [L124] COND FALSE !(stepLocal_4 > (var_1_15 - (last_1_var_1_5 + var_1_8))) VAL [isInitial=1, last_1_var_1_5=5, stepLocal_0=0, stepLocal_1=0, stepLocal_2=0, stepLocal_3=0, stepLocal_4=256, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=-31, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=60, var_1_5=5, var_1_8=0] [L127] COND FALSE !(stepLocal_3 || var_1_22) [L132] var_1_5 = -10000 VAL [isInitial=1, last_1_var_1_5=5, stepLocal_0=0, stepLocal_1=0, stepLocal_2=0, stepLocal_3=0, stepLocal_4=256, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=-31, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=60, var_1_5=-10000, var_1_8=0] [L183] RET step() [L184] CALL, EXPR property() [L174] EXPR (((var_1_20 + var_1_15) < -200) ? (var_1_22 ? ((var_1_20 > (- var_1_15)) ? (var_1_1 == ((unsigned long int) var_1_20)) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) && ((256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000)))) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=-31, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=60, var_1_5=-10000, var_1_8=0] [L174] EXPR (256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000))) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=-31, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=60, var_1_5=-10000, var_1_8=0] [L174] EXPR (var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000)) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=-31, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=60, var_1_5=-10000, var_1_8=0] [L174] EXPR (256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000))) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=-31, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=60, var_1_5=-10000, var_1_8=0] [L174] EXPR (((var_1_20 + var_1_15) < -200) ? (var_1_22 ? ((var_1_20 > (- var_1_15)) ? (var_1_1 == ((unsigned long int) var_1_20)) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) && ((256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000)))) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=-31, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=60, var_1_5=-10000, var_1_8=0] [L174] EXPR (((((((var_1_20 + var_1_15) < -200) ? (var_1_22 ? ((var_1_20 > (- var_1_15)) ? (var_1_1 == ((unsigned long int) var_1_20)) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) && ((256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000))))) && ((var_1_9 > var_1_10) ? (var_1_8 == ((unsigned char) (((((var_1_11 + (var_1_12 - var_1_13))) < ((5 + var_1_14))) ? ((var_1_11 + (var_1_12 - var_1_13))) : ((5 + var_1_14)))))) : 1)) && (var_1_22 ? (var_1_15 == ((unsigned long int) var_1_8)) : 1)) && (var_1_16 == ((signed short int) (((((var_1_15) < (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12))))) ? (var_1_15) : (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12)))))) - var_1_11)))) && (var_1_22 ? ((var_1_14 < (var_1_13 & (var_1_15 / 2))) ? (var_1_17 == ((signed char) (var_1_13 + (var_1_18 + (var_1_19 + 5))))) : (var_1_17 == ((signed char) var_1_18))) : (var_1_17 == ((signed char) -32))) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=-31, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=60, var_1_5=-10000, var_1_8=0] [L174-L175] return (((((((((var_1_20 + var_1_15) < -200) ? (var_1_22 ? ((var_1_20 > (- var_1_15)) ? (var_1_1 == ((unsigned long int) var_1_20)) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) && ((256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000))))) && ((var_1_9 > var_1_10) ? (var_1_8 == ((unsigned char) (((((var_1_11 + (var_1_12 - var_1_13))) < ((5 + var_1_14))) ? ((var_1_11 + (var_1_12 - var_1_13))) : ((5 + var_1_14)))))) : 1)) && (var_1_22 ? (var_1_15 == ((unsigned long int) var_1_8)) : 1)) && (var_1_16 == ((signed short int) (((((var_1_15) < (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12))))) ? (var_1_15) : (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12)))))) - var_1_11)))) && (var_1_22 ? ((var_1_14 < (var_1_13 & (var_1_15 / 2))) ? (var_1_17 == ((signed char) (var_1_13 + (var_1_18 + (var_1_19 + 5))))) : (var_1_17 == ((signed char) var_1_18))) : (var_1_17 == ((signed char) -32)))) && (var_1_20 == ((signed long int) var_1_8))) && (var_1_22 == ((unsigned char) var_1_23)) ; [L184] RET, EXPR property() [L184] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=-31, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=60, var_1_5=-10000, var_1_8=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=65, var_1_13=60, var_1_14=0, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=-31, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_24=0, var_1_29=32767, var_1_33=32767, var_1_35=4, var_1_37=0, var_1_38=0, var_1_43=60, var_1_5=-10000, var_1_8=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 74.8s, OverallIterations: 14, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1572 SdHoareTripleChecker+Valid, 4.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1558 mSDsluCounter, 5273 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3290 mSDsCounter, 247 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1601 IncrementalHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 247 mSolverCounterUnsat, 1983 mSDtfsCounter, 1601 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2102 GetRequests, 2021 SyntacticMatches, 6 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 10.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=712occurred in iteration=9, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 379 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 59.0s InterpolantComputationTime, 2085 NumberOfCodeBlocks, 2085 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2074 ConstructedInterpolants, 0 QuantifiedInterpolants, 19224 SizeOfPredicates, 52 NumberOfNonLiveVariables, 4489 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 11325/11400 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 20:22:39,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/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_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/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_9c8084e3-3efe-4590-8421-2c2eeae12564/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 c2b5d83791f5c517cc904865b76453ec006da14f7434583f731bc2f7adcccacf --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:22:41,393 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:22:41,471 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-28 20:22:41,477 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:22:41,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:22:41,503 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:22:41,504 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:22:41,505 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:22:41,505 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:22:41,506 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:22:41,506 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:22:41,507 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:22:41,508 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:22:41,508 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:22:41,509 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:22:41,509 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:22:41,510 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:22:41,510 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:22:41,511 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:22:41,511 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:22:41,512 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:22:41,512 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:22:41,513 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:22:41,513 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 20:22:41,514 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-28 20:22:41,514 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-28 20:22:41,515 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:22:41,515 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:22:41,516 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:22:41,516 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:22:41,517 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:22:41,517 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:22:41,517 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:22:41,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:22:41,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:22:41,518 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:22:41,518 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:22:41,519 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-28 20:22:41,519 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-28 20:22:41,519 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:22:41,519 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:22:41,520 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:22:41,520 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:22:41,520 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:22:41,520 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-28 20:22:41,520 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_9c8084e3-3efe-4590-8421-2c2eeae12564/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2b5d83791f5c517cc904865b76453ec006da14f7434583f731bc2f7adcccacf [2023-11-28 20:22:41,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:22:41,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:22:41,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:22:41,858 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:22:41,858 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:22:41,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i [2023-11-28 20:22:44,670 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:22:44,896 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:22:44,897 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i [2023-11-28 20:22:44,907 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/data/19bed04a3/d5a936f2096a4933ac4a6e817afdda02/FLAG60e712fda [2023-11-28 20:22:44,922 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/data/19bed04a3/d5a936f2096a4933ac4a6e817afdda02 [2023-11-28 20:22:44,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:22:44,926 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:22:44,927 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:22:44,927 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:22:44,933 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:22:44,933 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:22:44" (1/1) ... [2023-11-28 20:22:44,935 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d64d05a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:44, skipping insertion in model container [2023-11-28 20:22:44,935 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:22:44" (1/1) ... [2023-11-28 20:22:44,968 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:22:45,115 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_9c8084e3-3efe-4590-8421-2c2eeae12564/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i[919,932] [2023-11-28 20:22:45,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:22:45,203 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:22:45,216 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_9c8084e3-3efe-4590-8421-2c2eeae12564/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i[919,932] [2023-11-28 20:22:45,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:22:45,271 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:22:45,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:45 WrapperNode [2023-11-28 20:22:45,272 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:22:45,273 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:22:45,273 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:22:45,273 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:22:45,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:45" (1/1) ... [2023-11-28 20:22:45,295 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:45" (1/1) ... [2023-11-28 20:22:45,326 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 169 [2023-11-28 20:22:45,327 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:22:45,327 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:22:45,327 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:22:45,328 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:22:45,339 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:45" (1/1) ... [2023-11-28 20:22:45,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:45" (1/1) ... [2023-11-28 20:22:45,345 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:45" (1/1) ... [2023-11-28 20:22:45,360 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 20:22:45,360 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:45" (1/1) ... [2023-11-28 20:22:45,361 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:45" (1/1) ... [2023-11-28 20:22:45,374 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:45" (1/1) ... [2023-11-28 20:22:45,378 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:45" (1/1) ... [2023-11-28 20:22:45,382 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:45" (1/1) ... [2023-11-28 20:22:45,384 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:45" (1/1) ... [2023-11-28 20:22:45,389 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:22:45,390 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:22:45,390 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:22:45,391 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:22:45,392 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:45" (1/1) ... [2023-11-28 20:22:45,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:22:45,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:22:45,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:22:45,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:22:45,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:22:45,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-28 20:22:45,450 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-28 20:22:45,451 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-28 20:22:45,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:22:45,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:22:45,534 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:22:45,537 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:22:54,140 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:22:54,193 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:22:54,193 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 20:22:54,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:22:54 BoogieIcfgContainer [2023-11-28 20:22:54,194 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:22:54,196 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:22:54,197 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:22:54,200 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:22:54,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:22:44" (1/3) ... [2023-11-28 20:22:54,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21cb1f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:22:54, skipping insertion in model container [2023-11-28 20:22:54,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:45" (2/3) ... [2023-11-28 20:22:54,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21cb1f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:22:54, skipping insertion in model container [2023-11-28 20:22:54,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:22:54" (3/3) ... [2023-11-28 20:22:54,203 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-97.i [2023-11-28 20:22:54,221 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:22:54,222 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 20:22:54,269 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:22:54,275 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;@72367c1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:22:54,275 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 20:22:54,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 47 states have internal predecessors, (71), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-28 20:22:54,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-28 20:22:54,295 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:22:54,295 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:22:54,296 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:22:54,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:22:54,301 INFO L85 PathProgramCache]: Analyzing trace with hash 352974655, now seen corresponding path program 1 times [2023-11-28 20:22:54,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:22:54,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572814181] [2023-11-28 20:22:54,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:22:54,313 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 20:22:54,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:22:54,314 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/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 20:22:54,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/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 20:22:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:22:54,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-28 20:22:54,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:22:54,833 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 390 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-28 20:22:54,833 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:22:54,834 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:22:54,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1572814181] [2023-11-28 20:22:54,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1572814181] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:22:54,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:22:54,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:22:54,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839718917] [2023-11-28 20:22:54,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:22:54,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 20:22:54,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:22:54,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 20:22:54,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 20:22:54,874 INFO L87 Difference]: Start difference. First operand has 69 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 47 states have internal predecessors, (71), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-28 20:22:54,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:22:54,932 INFO L93 Difference]: Finished difference Result 134 states and 238 transitions. [2023-11-28 20:22:54,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 20:22:54,936 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 132 [2023-11-28 20:22:54,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:22:54,944 INFO L225 Difference]: With dead ends: 134 [2023-11-28 20:22:54,944 INFO L226 Difference]: Without dead ends: 66 [2023-11-28 20:22:54,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 131 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 20:22:54,952 INFO L413 NwaCegarLoop]: 98 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, 98 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 20:22:54,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:22:54,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-28 20:22:54,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-11-28 20:22:54,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 44 states have internal predecessors, (61), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-28 20:22:54,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 101 transitions. [2023-11-28 20:22:54,991 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 101 transitions. Word has length 132 [2023-11-28 20:22:54,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:22:54,992 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 101 transitions. [2023-11-28 20:22:54,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-28 20:22:54,992 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 101 transitions. [2023-11-28 20:22:54,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-28 20:22:54,996 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:22:54,997 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:22:55,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/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 20:22:55,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/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 20:22:55,201 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:22:55,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:22:55,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1281691337, now seen corresponding path program 1 times [2023-11-28 20:22:55,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:22:55,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510340926] [2023-11-28 20:22:55,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:22:55,206 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 20:22:55,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:22:55,207 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/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 20:22:55,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/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 20:22:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:22:55,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:22:55,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:22:56,250 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-28 20:22:56,250 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:22:56,251 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:22:56,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1510340926] [2023-11-28 20:22:56,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1510340926] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:22:56,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:22:56,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:22:56,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923314317] [2023-11-28 20:22:56,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:22:56,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:22:56,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:22:56,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:22:56,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:22:56,255 INFO L87 Difference]: Start difference. First operand 66 states and 101 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:22:56,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:22:56,373 INFO L93 Difference]: Finished difference Result 193 states and 295 transitions. [2023-11-28 20:22:56,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:22:56,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 132 [2023-11-28 20:22:56,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:22:56,377 INFO L225 Difference]: With dead ends: 193 [2023-11-28 20:22:56,378 INFO L226 Difference]: Without dead ends: 128 [2023-11-28 20:22:56,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:22:56,380 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 31 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:22:56,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 180 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:22:56,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-11-28 20:22:56,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 119. [2023-11-28 20:22:56,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 76 states have (on average 1.3157894736842106) internal successors, (100), 76 states have internal predecessors, (100), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-28 20:22:56,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 180 transitions. [2023-11-28 20:22:56,407 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 180 transitions. Word has length 132 [2023-11-28 20:22:56,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:22:56,408 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 180 transitions. [2023-11-28 20:22:56,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:22:56,409 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 180 transitions. [2023-11-28 20:22:56,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-28 20:22:56,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:22:56,412 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:22:56,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-28 20:22:56,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/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 20:22:56,617 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:22:56,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:22:56,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1992207605, now seen corresponding path program 1 times [2023-11-28 20:22:56,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:22:56,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514868159] [2023-11-28 20:22:56,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:22:56,618 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 20:22:56,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:22:56,619 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/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 20:22:56,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-28 20:22:57,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:22:57,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 20:22:57,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:22:57,277 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 289 proven. 12 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2023-11-28 20:22:57,277 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:22:57,622 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-28 20:22:57,622 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:22:57,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514868159] [2023-11-28 20:22:57,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514868159] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:22:57,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:22:57,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-11-28 20:22:57,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487006910] [2023-11-28 20:22:57,624 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:22:57,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 20:22:57,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:22:57,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 20:22:57,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:22:57,638 INFO L87 Difference]: Start difference. First operand 119 states and 180 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-28 20:22:58,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:22:58,409 INFO L93 Difference]: Finished difference Result 189 states and 279 transitions. [2023-11-28 20:22:58,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-28 20:22:58,410 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 132 [2023-11-28 20:22:58,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:22:58,412 INFO L225 Difference]: With dead ends: 189 [2023-11-28 20:22:58,413 INFO L226 Difference]: Without dead ends: 71 [2023-11-28 20:22:58,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 256 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-11-28 20:22:58,416 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 98 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 20:22:58,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 131 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 20:22:58,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-28 20:22:58,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2023-11-28 20:22:58,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 44 states have internal predecessors, (54), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-28 20:22:58,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 94 transitions. [2023-11-28 20:22:58,430 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 94 transitions. Word has length 132 [2023-11-28 20:22:58,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:22:58,431 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 94 transitions. [2023-11-28 20:22:58,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-28 20:22:58,431 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 94 transitions. [2023-11-28 20:22:58,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-28 20:22:58,433 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:22:58,434 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:22:58,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-28 20:22:58,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/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 20:22:58,637 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:22:58,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:22:58,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1599180595, now seen corresponding path program 1 times [2023-11-28 20:22:58,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:22:58,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208739801] [2023-11-28 20:22:58,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:22:58,638 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 20:22:58,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:22:58,639 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/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 20:22:58,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-28 20:22:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:22:59,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:22:59,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:22:59,686 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-28 20:22:59,686 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:22:59,686 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:22:59,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208739801] [2023-11-28 20:22:59,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208739801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:22:59,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:22:59,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:22:59,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134043723] [2023-11-28 20:22:59,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:22:59,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:22:59,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:22:59,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:22:59,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:22:59,690 INFO L87 Difference]: Start difference. First operand 67 states and 94 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:23:00,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:00,341 INFO L93 Difference]: Finished difference Result 184 states and 261 transitions. [2023-11-28 20:23:00,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:23:00,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 132 [2023-11-28 20:23:00,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:00,346 INFO L225 Difference]: With dead ends: 184 [2023-11-28 20:23:00,346 INFO L226 Difference]: Without dead ends: 118 [2023-11-28 20:23:00,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:23:00,348 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 116 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:00,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 311 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 20:23:00,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-28 20:23:00,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 67. [2023-11-28 20:23:00,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 44 states have internal predecessors, (53), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-28 20:23:00,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 93 transitions. [2023-11-28 20:23:00,370 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 93 transitions. Word has length 132 [2023-11-28 20:23:00,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:00,371 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 93 transitions. [2023-11-28 20:23:00,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:23:00,371 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2023-11-28 20:23:00,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-28 20:23:00,374 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:00,374 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:23:00,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-28 20:23:00,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/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 20:23:00,580 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:00,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:00,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1653660044, now seen corresponding path program 1 times [2023-11-28 20:23:00,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:23:00,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [645792160] [2023-11-28 20:23:00,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:00,582 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 20:23:00,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:23:00,583 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/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 20:23:00,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-28 20:23:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:00,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:23:00,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:03,055 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-28 20:23:03,055 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:03,056 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:23:03,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [645792160] [2023-11-28 20:23:03,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [645792160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:03,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:23:03,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:23:03,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620381191] [2023-11-28 20:23:03,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:03,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:23:03,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:23:03,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:23:03,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:23:03,059 INFO L87 Difference]: Start difference. First operand 67 states and 93 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:23:03,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:03,561 INFO L93 Difference]: Finished difference Result 205 states and 283 transitions. [2023-11-28 20:23:03,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:23:03,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 133 [2023-11-28 20:23:03,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:03,564 INFO L225 Difference]: With dead ends: 205 [2023-11-28 20:23:03,565 INFO L226 Difference]: Without dead ends: 139 [2023-11-28 20:23:03,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:23:03,566 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 61 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:03,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 281 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 20:23:03,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-11-28 20:23:03,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 131. [2023-11-28 20:23:03,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 86 states have (on average 1.197674418604651) internal successors, (103), 86 states have internal predecessors, (103), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-28 20:23:03,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 183 transitions. [2023-11-28 20:23:03,603 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 183 transitions. Word has length 133 [2023-11-28 20:23:03,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:03,604 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 183 transitions. [2023-11-28 20:23:03,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:23:03,605 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 183 transitions. [2023-11-28 20:23:03,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-28 20:23:03,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:03,607 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:23:03,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-28 20:23:03,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/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 20:23:03,812 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:03,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:03,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1066854030, now seen corresponding path program 1 times [2023-11-28 20:23:03,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:23:03,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570234553] [2023-11-28 20:23:03,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:03,814 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 20:23:03,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:23:03,815 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/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 20:23:03,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-28 20:23:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:04,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 20:23:04,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:05,362 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-28 20:23:05,362 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:05,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:23:05,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1570234553] [2023-11-28 20:23:05,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1570234553] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:05,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:23:05,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:23:05,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791604786] [2023-11-28 20:23:05,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:05,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:23:05,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:23:05,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:23:05,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:23:05,365 INFO L87 Difference]: Start difference. First operand 131 states and 183 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:23:05,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:05,748 INFO L93 Difference]: Finished difference Result 269 states and 373 transitions. [2023-11-28 20:23:05,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:23:05,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 133 [2023-11-28 20:23:05,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:05,751 INFO L225 Difference]: With dead ends: 269 [2023-11-28 20:23:05,751 INFO L226 Difference]: Without dead ends: 203 [2023-11-28 20:23:05,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:23:05,753 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 68 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:05,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 286 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 20:23:05,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-11-28 20:23:05,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 131. [2023-11-28 20:23:05,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 86 states have (on average 1.197674418604651) internal successors, (103), 86 states have internal predecessors, (103), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-28 20:23:05,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 183 transitions. [2023-11-28 20:23:05,785 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 183 transitions. Word has length 133 [2023-11-28 20:23:05,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:05,786 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 183 transitions. [2023-11-28 20:23:05,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-28 20:23:05,786 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 183 transitions. [2023-11-28 20:23:05,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-28 20:23:05,788 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:05,788 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:23:05,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-28 20:23:05,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/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 20:23:05,991 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:05,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:05,992 INFO L85 PathProgramCache]: Analyzing trace with hash 275795540, now seen corresponding path program 1 times [2023-11-28 20:23:05,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:23:05,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746770037] [2023-11-28 20:23:05,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:05,992 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 20:23:05,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:23:05,993 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/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 20:23:05,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c8084e3-3efe-4590-8421-2c2eeae12564/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-28 20:23:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:06,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-28 20:23:06,347 INFO L285 TraceCheckSpWp]: Computing forward predicates...