./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-28.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/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_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-28.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/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_88ad8e26-81be-4fc3-b92f-4da5157f45e6/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 d2c75dca6200a745b1e9a10165d81ba987342ada267360da9c3346293958a99c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:29:48,703 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:29:48,768 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 02:29:48,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:29:48,774 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:29:48,800 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:29:48,800 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:29:48,801 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:29:48,801 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:29:48,802 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:29:48,802 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:29:48,803 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:29:48,804 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:29:48,804 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:29:48,805 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:29:48,805 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:29:48,806 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:29:48,806 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:29:48,807 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:29:48,807 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:29:48,808 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:29:48,809 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:29:48,809 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:29:48,809 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:29:48,810 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:29:48,810 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:29:48,811 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:29:48,811 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:29:48,812 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:29:48,812 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:29:48,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:29:48,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:29:48,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:29:48,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:29:48,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:29:48,814 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:29:48,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:29:48,814 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:29:48,814 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:29:48,814 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:29:48,815 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:29:48,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:29:48,815 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_88ad8e26-81be-4fc3-b92f-4da5157f45e6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2c75dca6200a745b1e9a10165d81ba987342ada267360da9c3346293958a99c [2023-11-29 02:29:49,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:29:49,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:29:49,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:29:49,050 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:29:49,050 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:29:49,051 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-28.i [2023-11-29 02:29:51,800 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:29:51,991 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:29:51,991 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-28.i [2023-11-29 02:29:51,999 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/data/bbdf907de/af855d9d94d44156ae9f50bfed22c75d/FLAGb29e5818c [2023-11-29 02:29:52,010 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/data/bbdf907de/af855d9d94d44156ae9f50bfed22c75d [2023-11-29 02:29:52,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:29:52,014 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:29:52,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:29:52,015 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:29:52,019 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:29:52,020 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:29:52" (1/1) ... [2023-11-29 02:29:52,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c59b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:52, skipping insertion in model container [2023-11-29 02:29:52,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:29:52" (1/1) ... [2023-11-29 02:29:52,053 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:29:52,167 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_88ad8e26-81be-4fc3-b92f-4da5157f45e6/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-28.i[917,930] [2023-11-29 02:29:52,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:29:52,253 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:29:52,265 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_88ad8e26-81be-4fc3-b92f-4da5157f45e6/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-28.i[917,930] [2023-11-29 02:29:52,301 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:29:52,315 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:29:52,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:52 WrapperNode [2023-11-29 02:29:52,316 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:29:52,316 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:29:52,316 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:29:52,316 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:29:52,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:52" (1/1) ... [2023-11-29 02:29:52,335 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:52" (1/1) ... [2023-11-29 02:29:52,380 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 187 [2023-11-29 02:29:52,381 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:29:52,381 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:29:52,381 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:29:52,381 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:29:52,391 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:52" (1/1) ... [2023-11-29 02:29:52,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:52" (1/1) ... [2023-11-29 02:29:52,397 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:52" (1/1) ... [2023-11-29 02:29:52,424 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]. [2023-11-29 02:29:52,424 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:52" (1/1) ... [2023-11-29 02:29:52,425 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:52" (1/1) ... [2023-11-29 02:29:52,441 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:52" (1/1) ... [2023-11-29 02:29:52,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:52" (1/1) ... [2023-11-29 02:29:52,450 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:52" (1/1) ... [2023-11-29 02:29:52,453 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:52" (1/1) ... [2023-11-29 02:29:52,461 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:29:52,462 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:29:52,462 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:29:52,462 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:29:52,463 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:52" (1/1) ... [2023-11-29 02:29:52,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:29:52,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:29:52,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:29:52,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:29:52,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:29:52,521 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 02:29:52,521 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 02:29:52,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:29:52,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:29:52,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:29:52,598 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:29:52,600 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:29:52,988 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:29:53,019 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:29:53,019 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:29:53,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:29:53 BoogieIcfgContainer [2023-11-29 02:29:53,020 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:29:53,023 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:29:53,023 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:29:53,026 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:29:53,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:29:52" (1/3) ... [2023-11-29 02:29:53,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@626d9acb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:29:53, skipping insertion in model container [2023-11-29 02:29:53,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:52" (2/3) ... [2023-11-29 02:29:53,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@626d9acb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:29:53, skipping insertion in model container [2023-11-29 02:29:53,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:29:53" (3/3) ... [2023-11-29 02:29:53,029 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-28.i [2023-11-29 02:29:53,049 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:29:53,050 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 02:29:53,102 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:29:53,109 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;@7440fc4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:29:53,109 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 02:29:53,114 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 50 states have internal predecessors, (68), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 02:29:53,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 02:29:53,130 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:29:53,130 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:29:53,131 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:29:53,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:29:53,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1030534567, now seen corresponding path program 1 times [2023-11-29 02:29:53,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:29:53,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455404122] [2023-11-29 02:29:53,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:29:53,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:29:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:29:53,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:29:53,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455404122] [2023-11-29 02:29:53,373 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 02:29:53,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381069050] [2023-11-29 02:29:53,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:29:53,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:29:53,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:29:53,376 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:29:53,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 02:29:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:29:53,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 02:29:53,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:29:53,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 1922 trivial. 0 not checked. [2023-11-29 02:29:53,617 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:29:53,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381069050] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:29:53,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:29:53,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:29:53,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041595447] [2023-11-29 02:29:53,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:29:53,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 02:29:53,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:29:53,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 02:29:53,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:29:53,658 INFO L87 Difference]: Start difference. First operand has 84 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 50 states have internal predecessors, (68), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-29 02:29:53,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:29:53,699 INFO L93 Difference]: Finished difference Result 165 states and 294 transitions. [2023-11-29 02:29:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 02:29:53,702 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) Word has length 197 [2023-11-29 02:29:53,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:29:53,710 INFO L225 Difference]: With dead ends: 165 [2023-11-29 02:29:53,710 INFO L226 Difference]: Without dead ends: 82 [2023-11-29 02:29:53,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:29:53,718 INFO L413 NwaCegarLoop]: 124 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, 124 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 [2023-11-29 02:29:53,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:29:53,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-11-29 02:29:53,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2023-11-29 02:29:53,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 48 states have (on average 1.3125) internal successors, (63), 48 states have internal predecessors, (63), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 02:29:53,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 127 transitions. [2023-11-29 02:29:53,778 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 127 transitions. Word has length 197 [2023-11-29 02:29:53,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:29:53,779 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 127 transitions. [2023-11-29 02:29:53,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-29 02:29:53,780 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 127 transitions. [2023-11-29 02:29:53,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 02:29:53,789 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:29:53,790 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:29:53,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:29:54,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 02:29:54,001 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:29:54,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:29:54,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1341827681, now seen corresponding path program 1 times [2023-11-29 02:29:54,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:29:54,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387957898] [2023-11-29 02:29:54,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:29:54,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:29:54,070 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:29:54,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1017214001] [2023-11-29 02:29:54,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:29:54,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:29:54,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:29:54,072 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:29:54,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 02:29:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:29:54,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 02:29:54,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:30:08,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 02:30:08,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:30:08,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:30:08,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387957898] [2023-11-29 02:30:08,528 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:30:08,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017214001] [2023-11-29 02:30:08,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017214001] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:30:08,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:30:08,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 02:30:08,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467878254] [2023-11-29 02:30:08,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:30:08,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:30:08,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:30:08,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:30:08,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:30:08,532 INFO L87 Difference]: Start difference. First operand 82 states and 127 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:30:10,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:30:10,325 INFO L93 Difference]: Finished difference Result 268 states and 407 transitions. [2023-11-29 02:30:10,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 02:30:10,326 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 197 [2023-11-29 02:30:10,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:30:10,330 INFO L225 Difference]: With dead ends: 268 [2023-11-29 02:30:10,330 INFO L226 Difference]: Without dead ends: 187 [2023-11-29 02:30:10,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:30:10,334 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 227 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:30:10,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 547 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 02:30:10,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-11-29 02:30:10,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 106. [2023-11-29 02:30:10,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 72 states have (on average 1.375) internal successors, (99), 72 states have internal predecessors, (99), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 02:30:10,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 163 transitions. [2023-11-29 02:30:10,354 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 163 transitions. Word has length 197 [2023-11-29 02:30:10,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:30:10,356 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 163 transitions. [2023-11-29 02:30:10,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:30:10,357 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 163 transitions. [2023-11-29 02:30:10,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 02:30:10,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:30:10,362 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:30:10,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 02:30:10,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:30:10,569 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:30:10,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:30:10,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1734854691, now seen corresponding path program 1 times [2023-11-29 02:30:10,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:30:10,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56385176] [2023-11-29 02:30:10,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:30:10,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:30:10,604 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:30:10,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1625070804] [2023-11-29 02:30:10,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:30:10,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:30:10,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:30:10,606 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:30:10,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 02:30:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:30:10,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 02:30:10,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:30:29,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 947 proven. 123 refuted. 0 times theorem prover too weak. 914 trivial. 0 not checked. [2023-11-29 02:30:29,450 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:30:52,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 02:30:52,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:30:52,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56385176] [2023-11-29 02:30:52,251 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:30:52,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625070804] [2023-11-29 02:30:52,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625070804] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 02:30:52,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:30:52,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [16] total 23 [2023-11-29 02:30:52,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730086023] [2023-11-29 02:30:52,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:30:52,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:30:52,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:30:52,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:30:52,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2023-11-29 02:30:52,254 INFO L87 Difference]: Start difference. First operand 106 states and 163 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:31:00,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:00,001 INFO L93 Difference]: Finished difference Result 336 states and 502 transitions. [2023-11-29 02:31:00,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 02:31:00,002 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 197 [2023-11-29 02:31:00,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:00,006 INFO L225 Difference]: With dead ends: 336 [2023-11-29 02:31:00,006 INFO L226 Difference]: Without dead ends: 231 [2023-11-29 02:31:00,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=266, Invalid=994, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 02:31:00,009 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 402 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:00,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 539 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 02:31:00,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-11-29 02:31:00,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 115. [2023-11-29 02:31:00,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 81 states have (on average 1.382716049382716) internal successors, (112), 81 states have internal predecessors, (112), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 02:31:00,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 176 transitions. [2023-11-29 02:31:00,027 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 176 transitions. Word has length 197 [2023-11-29 02:31:00,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:00,028 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 176 transitions. [2023-11-29 02:31:00,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:31:00,029 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 176 transitions. [2023-11-29 02:31:00,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 02:31:00,032 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:00,033 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:00,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 02:31:00,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:31:00,233 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:00,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:00,234 INFO L85 PathProgramCache]: Analyzing trace with hash -640763103, now seen corresponding path program 1 times [2023-11-29 02:31:00,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:00,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587649760] [2023-11-29 02:31:00,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:00,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:00,267 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:31:00,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [975029627] [2023-11-29 02:31:00,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:00,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:31:00,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:31:00,269 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:31:00,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 02:31:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:00,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 02:31:00,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:31:01,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 1158 proven. 159 refuted. 0 times theorem prover too weak. 667 trivial. 0 not checked. [2023-11-29 02:31:01,199 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:31:01,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 75 proven. 18 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2023-11-29 02:31:01,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:01,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587649760] [2023-11-29 02:31:01,792 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:31:01,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975029627] [2023-11-29 02:31:01,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975029627] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:31:01,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:31:01,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9] total 22 [2023-11-29 02:31:01,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273805525] [2023-11-29 02:31:01,792 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:31:01,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 02:31:01,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:01,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 02:31:01,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2023-11-29 02:31:01,795 INFO L87 Difference]: Start difference. First operand 115 states and 176 transitions. Second operand has 22 states, 22 states have (on average 3.8636363636363638) internal successors, (85), 22 states have internal predecessors, (85), 5 states have call successors, (58), 4 states have call predecessors, (58), 8 states have return successors, (59), 5 states have call predecessors, (59), 5 states have call successors, (59) [2023-11-29 02:31:04,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:04,001 INFO L93 Difference]: Finished difference Result 514 states and 746 transitions. [2023-11-29 02:31:04,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-11-29 02:31:04,002 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.8636363636363638) internal successors, (85), 22 states have internal predecessors, (85), 5 states have call successors, (58), 4 states have call predecessors, (58), 8 states have return successors, (59), 5 states have call predecessors, (59), 5 states have call successors, (59) Word has length 197 [2023-11-29 02:31:04,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:04,006 INFO L225 Difference]: With dead ends: 514 [2023-11-29 02:31:04,006 INFO L226 Difference]: Without dead ends: 400 [2023-11-29 02:31:04,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1998 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1178, Invalid=4984, Unknown=0, NotChecked=0, Total=6162 [2023-11-29 02:31:04,009 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 804 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 309 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:04,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 839 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [309 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 02:31:04,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2023-11-29 02:31:04,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 224. [2023-11-29 02:31:04,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 151 states have (on average 1.3112582781456954) internal successors, (198), 151 states have internal predecessors, (198), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 02:31:04,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 326 transitions. [2023-11-29 02:31:04,056 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 326 transitions. Word has length 197 [2023-11-29 02:31:04,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:04,057 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 326 transitions. [2023-11-29 02:31:04,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.8636363636363638) internal successors, (85), 22 states have internal predecessors, (85), 5 states have call successors, (58), 4 states have call predecessors, (58), 8 states have return successors, (59), 5 states have call predecessors, (59), 5 states have call successors, (59) [2023-11-29 02:31:04,057 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 326 transitions. [2023-11-29 02:31:04,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 02:31:04,061 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:04,061 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:04,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 02:31:04,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:31:04,264 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:04,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:04,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1033790113, now seen corresponding path program 1 times [2023-11-29 02:31:04,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:04,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789415607] [2023-11-29 02:31:04,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:04,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:04,297 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:31:04,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [654746433] [2023-11-29 02:31:04,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:04,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:31:04,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:31:04,299 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:31:04,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 02:31:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:04,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-29 02:31:04,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:31:16,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 1044 proven. 234 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2023-11-29 02:31:16,380 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:31:31,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 02:31:31,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:31,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789415607] [2023-11-29 02:31:31,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:31:31,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654746433] [2023-11-29 02:31:31,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654746433] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 02:31:31,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:31:31,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [23] total 30 [2023-11-29 02:31:31,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075050660] [2023-11-29 02:31:31,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:31,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:31:31,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:31,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:31:31,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=697, Unknown=0, NotChecked=0, Total=870 [2023-11-29 02:31:31,985 INFO L87 Difference]: Start difference. First operand 224 states and 326 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:31:38,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:38,735 INFO L93 Difference]: Finished difference Result 538 states and 774 transitions. [2023-11-29 02:31:38,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 02:31:38,735 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 197 [2023-11-29 02:31:38,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:38,738 INFO L225 Difference]: With dead ends: 538 [2023-11-29 02:31:38,738 INFO L226 Difference]: Without dead ends: 315 [2023-11-29 02:31:38,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=301, Invalid=1421, Unknown=0, NotChecked=0, Total=1722 [2023-11-29 02:31:38,740 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 252 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:38,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 703 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 02:31:38,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-29 02:31:38,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 218. [2023-11-29 02:31:38,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 145 states have (on average 1.303448275862069) internal successors, (189), 145 states have internal predecessors, (189), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 02:31:38,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 317 transitions. [2023-11-29 02:31:38,768 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 317 transitions. Word has length 197 [2023-11-29 02:31:38,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:38,769 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 317 transitions. [2023-11-29 02:31:38,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:31:38,769 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 317 transitions. [2023-11-29 02:31:38,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 02:31:38,771 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:38,772 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:38,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 02:31:38,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:31:38,977 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:38,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:38,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1673275937, now seen corresponding path program 1 times [2023-11-29 02:31:38,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:38,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156275580] [2023-11-29 02:31:38,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:38,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:39,004 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:31:39,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [837133872] [2023-11-29 02:31:39,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:39,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:31:39,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:31:39,006 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:31:39,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 02:31:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:39,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:31:39,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:31:39,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 02:31:39,155 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:31:39,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:39,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156275580] [2023-11-29 02:31:39,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:31:39,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837133872] [2023-11-29 02:31:39,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837133872] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:31:39,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:31:39,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:31:39,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910569183] [2023-11-29 02:31:39,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:39,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:31:39,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:39,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:31:39,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:31:39,158 INFO L87 Difference]: Start difference. First operand 218 states and 317 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:31:39,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:39,226 INFO L93 Difference]: Finished difference Result 539 states and 785 transitions. [2023-11-29 02:31:39,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:31:39,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 197 [2023-11-29 02:31:39,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:39,230 INFO L225 Difference]: With dead ends: 539 [2023-11-29 02:31:39,230 INFO L226 Difference]: Without dead ends: 322 [2023-11-29 02:31:39,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:31:39,232 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 145 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:39,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 532 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:31:39,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-11-29 02:31:39,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 216. [2023-11-29 02:31:39,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 143 states have (on average 1.3006993006993006) internal successors, (186), 143 states have internal predecessors, (186), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 02:31:39,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 314 transitions. [2023-11-29 02:31:39,263 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 314 transitions. Word has length 197 [2023-11-29 02:31:39,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:39,263 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 314 transitions. [2023-11-29 02:31:39,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:31:39,264 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 314 transitions. [2023-11-29 02:31:39,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 02:31:39,266 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:39,266 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:39,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 02:31:39,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 02:31:39,468 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:39,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:39,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1280248927, now seen corresponding path program 1 times [2023-11-29 02:31:39,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:39,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805534840] [2023-11-29 02:31:39,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:39,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:39,492 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:31:39,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [146584080] [2023-11-29 02:31:39,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:39,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:31:39,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:31:39,493 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:31:39,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 02:31:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:39,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 02:31:39,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:31:50,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 02:31:50,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:31:50,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:50,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805534840] [2023-11-29 02:31:50,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:31:50,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146584080] [2023-11-29 02:31:50,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146584080] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:31:50,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:31:50,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 02:31:50,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56669929] [2023-11-29 02:31:50,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:50,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:31:50,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:50,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:31:50,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:31:50,294 INFO L87 Difference]: Start difference. First operand 216 states and 314 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:31:51,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:51,600 INFO L93 Difference]: Finished difference Result 527 states and 761 transitions. [2023-11-29 02:31:51,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 02:31:51,601 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 197 [2023-11-29 02:31:51,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:51,604 INFO L225 Difference]: With dead ends: 527 [2023-11-29 02:31:51,604 INFO L226 Difference]: Without dead ends: 312 [2023-11-29 02:31:51,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:31:51,606 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 159 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:51,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 549 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:31:51,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-11-29 02:31:51,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 227. [2023-11-29 02:31:51,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 154 states have (on average 1.3116883116883118) internal successors, (202), 154 states have internal predecessors, (202), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 02:31:51,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 330 transitions. [2023-11-29 02:31:51,632 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 330 transitions. Word has length 197 [2023-11-29 02:31:51,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:51,633 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 330 transitions. [2023-11-29 02:31:51,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:31:51,633 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 330 transitions. [2023-11-29 02:31:51,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 02:31:51,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:51,635 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:51,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 02:31:51,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 02:31:51,837 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:51,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:51,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1981313505, now seen corresponding path program 1 times [2023-11-29 02:31:51,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:51,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874508877] [2023-11-29 02:31:51,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:51,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:51,862 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:31:51,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1213182967] [2023-11-29 02:31:51,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:51,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:31:51,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:31:51,864 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:31:51,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 02:31:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:52,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 02:31:52,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:31:58,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 02:31:58,355 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:31:58,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:58,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874508877] [2023-11-29 02:31:58,355 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:31:58,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213182967] [2023-11-29 02:31:58,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213182967] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:31:58,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:31:58,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 02:31:58,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753749842] [2023-11-29 02:31:58,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:58,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:31:58,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:58,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:31:58,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:31:58,357 INFO L87 Difference]: Start difference. First operand 227 states and 330 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:31:59,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:59,510 INFO L93 Difference]: Finished difference Result 538 states and 774 transitions. [2023-11-29 02:31:59,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 02:31:59,511 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 197 [2023-11-29 02:31:59,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:59,513 INFO L225 Difference]: With dead ends: 538 [2023-11-29 02:31:59,513 INFO L226 Difference]: Without dead ends: 312 [2023-11-29 02:31:59,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:31:59,515 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 115 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:59,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 708 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:31:59,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-11-29 02:31:59,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 220. [2023-11-29 02:31:59,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 147 states have (on average 1.3061224489795917) internal successors, (192), 147 states have internal predecessors, (192), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 02:31:59,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 320 transitions. [2023-11-29 02:31:59,537 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 320 transitions. Word has length 197 [2023-11-29 02:31:59,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:59,537 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 320 transitions. [2023-11-29 02:31:59,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:31:59,537 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 320 transitions. [2023-11-29 02:31:59,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 02:31:59,538 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:59,539 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:59,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 02:31:59,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 02:31:59,739 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:59,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:59,740 INFO L85 PathProgramCache]: Analyzing trace with hash 971764703, now seen corresponding path program 1 times [2023-11-29 02:31:59,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:59,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639325948] [2023-11-29 02:31:59,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:59,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:59,761 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:31:59,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1068330077] [2023-11-29 02:31:59,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:59,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:31:59,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:31:59,762 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:31:59,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 02:31:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:59,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 02:31:59,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:09,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 993 proven. 54 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2023-11-29 02:32:09,604 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:32:22,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 02:32:22,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:22,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639325948] [2023-11-29 02:32:22,880 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:22,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068330077] [2023-11-29 02:32:22,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068330077] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 02:32:22,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:32:22,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 20 [2023-11-29 02:32:22,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043307398] [2023-11-29 02:32:22,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:22,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:32:22,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:22,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:32:22,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:32:22,883 INFO L87 Difference]: Start difference. First operand 220 states and 320 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:32:25,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:25,683 INFO L93 Difference]: Finished difference Result 573 states and 833 transitions. [2023-11-29 02:32:25,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 02:32:25,684 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 197 [2023-11-29 02:32:25,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:25,686 INFO L225 Difference]: With dead ends: 573 [2023-11-29 02:32:25,686 INFO L226 Difference]: Without dead ends: 354 [2023-11-29 02:32:25,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=168, Invalid=762, Unknown=0, NotChecked=0, Total=930 [2023-11-29 02:32:25,688 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 261 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:25,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 915 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 02:32:25,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-11-29 02:32:25,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 243. [2023-11-29 02:32:25,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 170 states have (on average 1.3411764705882352) internal successors, (228), 170 states have internal predecessors, (228), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 02:32:25,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 356 transitions. [2023-11-29 02:32:25,710 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 356 transitions. Word has length 197 [2023-11-29 02:32:25,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:25,710 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 356 transitions. [2023-11-29 02:32:25,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:32:25,710 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 356 transitions. [2023-11-29 02:32:25,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 02:32:25,712 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:25,712 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:25,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 02:32:25,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:25,913 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:25,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:25,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1672829281, now seen corresponding path program 1 times [2023-11-29 02:32:25,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:25,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899924452] [2023-11-29 02:32:25,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:25,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:25,937 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:25,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1487136842] [2023-11-29 02:32:25,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:25,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:25,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:25,939 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:25,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 02:32:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:26,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 02:32:26,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:32,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 993 proven. 54 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2023-11-29 02:32:32,604 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:32:41,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 02:32:41,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:41,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899924452] [2023-11-29 02:32:41,393 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:41,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487136842] [2023-11-29 02:32:41,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487136842] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 02:32:41,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:32:41,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 20 [2023-11-29 02:32:41,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127615425] [2023-11-29 02:32:41,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:41,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:32:41,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:41,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:32:41,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:32:41,396 INFO L87 Difference]: Start difference. First operand 243 states and 356 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:32:43,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:43,224 INFO L93 Difference]: Finished difference Result 596 states and 867 transitions. [2023-11-29 02:32:43,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 02:32:43,224 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 197 [2023-11-29 02:32:43,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:43,227 INFO L225 Difference]: With dead ends: 596 [2023-11-29 02:32:43,227 INFO L226 Difference]: Without dead ends: 354 [2023-11-29 02:32:43,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=162, Invalid=708, Unknown=0, NotChecked=0, Total=870 [2023-11-29 02:32:43,228 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 211 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:43,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 978 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 02:32:43,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-11-29 02:32:43,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 243. [2023-11-29 02:32:43,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 170 states have (on average 1.3411764705882352) internal successors, (228), 170 states have internal predecessors, (228), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 02:32:43,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 356 transitions. [2023-11-29 02:32:43,251 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 356 transitions. Word has length 197 [2023-11-29 02:32:43,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:43,251 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 356 transitions. [2023-11-29 02:32:43,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:32:43,251 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 356 transitions. [2023-11-29 02:32:43,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 02:32:43,253 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:43,253 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:43,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-29 02:32:43,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:43,453 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:43,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:43,454 INFO L85 PathProgramCache]: Analyzing trace with hash -308098975, now seen corresponding path program 1 times [2023-11-29 02:32:43,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:43,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274400463] [2023-11-29 02:32:43,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:43,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:43,475 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:43,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [818496423] [2023-11-29 02:32:43,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:43,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:43,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:43,477 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:43,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 02:32:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:43,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 02:32:43,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:49,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 02:32:49,360 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:32:49,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:49,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274400463] [2023-11-29 02:32:49,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:49,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818496423] [2023-11-29 02:32:49,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818496423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:49,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:49,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 02:32:49,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347641260] [2023-11-29 02:32:49,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:49,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:32:49,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:49,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:32:49,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:32:49,363 INFO L87 Difference]: Start difference. First operand 243 states and 356 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:32:49,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:49,968 INFO L93 Difference]: Finished difference Result 586 states and 853 transitions. [2023-11-29 02:32:49,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 02:32:49,969 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 197 [2023-11-29 02:32:49,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:49,971 INFO L225 Difference]: With dead ends: 586 [2023-11-29 02:32:49,971 INFO L226 Difference]: Without dead ends: 344 [2023-11-29 02:32:49,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:32:49,972 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 219 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:49,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 694 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:32:49,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-11-29 02:32:50,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 252. [2023-11-29 02:32:50,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 179 states have (on average 1.3463687150837989) internal successors, (241), 179 states have internal predecessors, (241), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 02:32:50,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 369 transitions. [2023-11-29 02:32:50,003 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 369 transitions. Word has length 197 [2023-11-29 02:32:50,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:50,004 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 369 transitions. [2023-11-29 02:32:50,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:32:50,004 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 369 transitions. [2023-11-29 02:32:50,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 02:32:50,005 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:50,006 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:50,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-29 02:32:50,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:50,206 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:50,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:50,207 INFO L85 PathProgramCache]: Analyzing trace with hash 392965603, now seen corresponding path program 1 times [2023-11-29 02:32:50,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:50,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44978190] [2023-11-29 02:32:50,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:50,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:50,235 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:50,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [143814183] [2023-11-29 02:32:50,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:50,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:50,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:50,237 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:50,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 02:32:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:50,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 02:32:50,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:53,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 02:32:53,414 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:32:53,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:53,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44978190] [2023-11-29 02:32:53,414 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:53,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143814183] [2023-11-29 02:32:53,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143814183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:53,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:53,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 02:32:53,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277853098] [2023-11-29 02:32:53,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:53,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:32:53,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:53,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:32:53,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:32:53,416 INFO L87 Difference]: Start difference. First operand 252 states and 369 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:32:53,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:53,816 INFO L93 Difference]: Finished difference Result 595 states and 863 transitions. [2023-11-29 02:32:53,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 02:32:53,816 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 197 [2023-11-29 02:32:53,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:53,819 INFO L225 Difference]: With dead ends: 595 [2023-11-29 02:32:53,819 INFO L226 Difference]: Without dead ends: 344 [2023-11-29 02:32:53,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:32:53,820 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 177 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:53,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 685 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:32:53,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-11-29 02:32:53,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 241. [2023-11-29 02:32:53,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 168 states have (on average 1.3392857142857142) internal successors, (225), 168 states have internal predecessors, (225), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 02:32:53,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 353 transitions. [2023-11-29 02:32:53,841 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 353 transitions. Word has length 197 [2023-11-29 02:32:53,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:53,842 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 353 transitions. [2023-11-29 02:32:53,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:32:53,842 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 353 transitions. [2023-11-29 02:32:53,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 02:32:53,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:53,844 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:53,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 02:32:54,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:54,045 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:54,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:54,045 INFO L85 PathProgramCache]: Analyzing trace with hash -66824461, now seen corresponding path program 1 times [2023-11-29 02:32:54,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:54,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241036387] [2023-11-29 02:32:54,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:54,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:54,066 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:54,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2100979673] [2023-11-29 02:32:54,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:54,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:54,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:54,068 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:54,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 02:32:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:54,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 02:32:54,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:33:06,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 02:33:06,776 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:33:06,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:33:06,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241036387] [2023-11-29 02:33:06,776 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:33:06,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100979673] [2023-11-29 02:33:06,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100979673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:33:06,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:33:06,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 02:33:06,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423598335] [2023-11-29 02:33:06,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:33:06,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:33:06,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:33:06,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:33:06,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:33:06,778 INFO L87 Difference]: Start difference. First operand 241 states and 353 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:33:09,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:33:09,030 INFO L93 Difference]: Finished difference Result 620 states and 891 transitions. [2023-11-29 02:33:09,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 02:33:09,031 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 198 [2023-11-29 02:33:09,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:33:09,033 INFO L225 Difference]: With dead ends: 620 [2023-11-29 02:33:09,033 INFO L226 Difference]: Without dead ends: 380 [2023-11-29 02:33:09,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=108, Invalid=198, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:33:09,034 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 175 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:33:09,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 569 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 02:33:09,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-11-29 02:33:09,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 267. [2023-11-29 02:33:09,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 194 states have (on average 1.3505154639175259) internal successors, (262), 194 states have internal predecessors, (262), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 02:33:09,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 390 transitions. [2023-11-29 02:33:09,063 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 390 transitions. Word has length 198 [2023-11-29 02:33:09,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:33:09,063 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 390 transitions. [2023-11-29 02:33:09,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:33:09,064 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 390 transitions. [2023-11-29 02:33:09,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 02:33:09,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:33:09,065 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:33:09,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 02:33:09,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:33:09,266 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:33:09,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:33:09,266 INFO L85 PathProgramCache]: Analyzing trace with hash -459851471, now seen corresponding path program 1 times [2023-11-29 02:33:09,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:33:09,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763133334] [2023-11-29 02:33:09,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:33:09,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:33:09,287 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:33:09,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [514620765] [2023-11-29 02:33:09,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:33:09,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:33:09,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:33:09,290 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:33:09,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 02:33:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:33:09,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 02:33:09,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:33:28,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 02:33:28,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:33:28,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:33:28,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763133334] [2023-11-29 02:33:28,793 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:33:28,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514620765] [2023-11-29 02:33:28,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514620765] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:33:28,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:33:28,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 02:33:28,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393966283] [2023-11-29 02:33:28,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:33:28,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:33:28,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:33:28,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:33:28,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:33:28,795 INFO L87 Difference]: Start difference. First operand 267 states and 390 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:33:31,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:33:31,657 INFO L93 Difference]: Finished difference Result 644 states and 920 transitions. [2023-11-29 02:33:31,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 02:33:31,657 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 198 [2023-11-29 02:33:31,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:33:31,659 INFO L225 Difference]: With dead ends: 644 [2023-11-29 02:33:31,659 INFO L226 Difference]: Without dead ends: 378 [2023-11-29 02:33:31,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:33:31,661 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 223 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:33:31,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 513 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 02:33:31,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-11-29 02:33:31,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 271. [2023-11-29 02:33:31,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 198 states have (on average 1.3484848484848484) internal successors, (267), 198 states have internal predecessors, (267), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 02:33:31,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 395 transitions. [2023-11-29 02:33:31,683 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 395 transitions. Word has length 198 [2023-11-29 02:33:31,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:33:31,684 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 395 transitions. [2023-11-29 02:33:31,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:33:31,684 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 395 transitions. [2023-11-29 02:33:31,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 02:33:31,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:33:31,685 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:33:31,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 02:33:31,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 02:33:31,886 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:33:31,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:33:31,886 INFO L85 PathProgramCache]: Analyzing trace with hash 241213107, now seen corresponding path program 1 times [2023-11-29 02:33:31,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:33:31,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047119134] [2023-11-29 02:33:31,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:33:31,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:33:31,902 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:33:31,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [280136766] [2023-11-29 02:33:31,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:33:31,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:33:31,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:33:31,903 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:33:31,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 02:33:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:33:32,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 02:33:32,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:33:48,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 02:33:48,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:33:48,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:33:48,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047119134] [2023-11-29 02:33:48,607 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:33:48,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280136766] [2023-11-29 02:33:48,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280136766] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:33:48,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:33:48,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 02:33:48,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868425246] [2023-11-29 02:33:48,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:33:48,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:33:48,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:33:48,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:33:48,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:33:48,609 INFO L87 Difference]: Start difference. First operand 271 states and 395 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:33:51,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:33:51,388 INFO L93 Difference]: Finished difference Result 648 states and 924 transitions. [2023-11-29 02:33:51,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 02:33:51,389 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 198 [2023-11-29 02:33:51,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:33:51,391 INFO L225 Difference]: With dead ends: 648 [2023-11-29 02:33:51,391 INFO L226 Difference]: Without dead ends: 378 [2023-11-29 02:33:51,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:33:51,393 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 162 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:33:51,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 655 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 02:33:51,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-11-29 02:33:51,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 267. [2023-11-29 02:33:51,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 194 states have (on average 1.3505154639175259) internal successors, (262), 194 states have internal predecessors, (262), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 02:33:51,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 390 transitions. [2023-11-29 02:33:51,414 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 390 transitions. Word has length 198 [2023-11-29 02:33:51,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:33:51,415 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 390 transitions. [2023-11-29 02:33:51,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:33:51,415 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 390 transitions. [2023-11-29 02:33:51,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 02:33:51,416 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:33:51,416 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:33:51,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-29 02:33:51,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:33:51,617 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:33:51,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:33:51,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1480919825, now seen corresponding path program 1 times [2023-11-29 02:33:51,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:33:51,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382128525] [2023-11-29 02:33:51,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:33:51,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:33:51,634 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:33:51,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1303406282] [2023-11-29 02:33:51,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:33:51,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:33:51,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:33:51,635 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:33:51,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 02:33:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:33:51,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 02:33:51,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:02,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 02:34:02,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:34:02,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:34:02,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382128525] [2023-11-29 02:34:02,034 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:34:02,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303406282] [2023-11-29 02:34:02,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303406282] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:34:02,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:34:02,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 02:34:02,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498540226] [2023-11-29 02:34:02,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:34:02,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:34:02,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:34:02,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:34:02,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:34:02,035 INFO L87 Difference]: Start difference. First operand 267 states and 390 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:34:03,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:03,604 INFO L93 Difference]: Finished difference Result 639 states and 917 transitions. [2023-11-29 02:34:03,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 02:34:03,605 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 198 [2023-11-29 02:34:03,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:03,607 INFO L225 Difference]: With dead ends: 639 [2023-11-29 02:34:03,608 INFO L226 Difference]: Without dead ends: 373 [2023-11-29 02:34:03,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:34:03,609 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 153 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:03,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 742 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:34:03,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-29 02:34:03,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 280. [2023-11-29 02:34:03,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 207 states have (on average 1.357487922705314) internal successors, (281), 207 states have internal predecessors, (281), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 02:34:03,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 409 transitions. [2023-11-29 02:34:03,630 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 409 transitions. Word has length 198 [2023-11-29 02:34:03,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:03,631 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 409 transitions. [2023-11-29 02:34:03,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:34:03,631 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 409 transitions. [2023-11-29 02:34:03,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 02:34:03,633 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:03,633 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:03,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-29 02:34:03,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:34:03,833 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:34:03,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:03,834 INFO L85 PathProgramCache]: Analyzing trace with hash -779855247, now seen corresponding path program 1 times [2023-11-29 02:34:03,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:34:03,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357235436] [2023-11-29 02:34:03,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:03,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:34:03,850 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:34:03,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1693278108] [2023-11-29 02:34:03,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:03,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:34:03,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:34:03,851 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:34:03,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 02:34:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:04,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 02:34:04,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:10,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 02:34:10,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:34:10,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:34:10,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357235436] [2023-11-29 02:34:10,368 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:34:10,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693278108] [2023-11-29 02:34:10,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693278108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:34:10,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:34:10,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 02:34:10,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282429776] [2023-11-29 02:34:10,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:34:10,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:34:10,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:34:10,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:34:10,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:34:10,370 INFO L87 Difference]: Start difference. First operand 280 states and 409 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:34:11,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:11,890 INFO L93 Difference]: Finished difference Result 652 states and 932 transitions. [2023-11-29 02:34:11,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 02:34:11,891 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 198 [2023-11-29 02:34:11,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:11,893 INFO L225 Difference]: With dead ends: 652 [2023-11-29 02:34:11,893 INFO L226 Difference]: Without dead ends: 373 [2023-11-29 02:34:11,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:34:11,895 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 126 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:11,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 841 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 02:34:11,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-29 02:34:11,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 275. [2023-11-29 02:34:11,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 202 states have (on average 1.3613861386138615) internal successors, (275), 202 states have internal predecessors, (275), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 02:34:11,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 403 transitions. [2023-11-29 02:34:11,923 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 403 transitions. Word has length 198 [2023-11-29 02:34:11,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:11,923 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 403 transitions. [2023-11-29 02:34:11,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:34:11,924 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 403 transitions. [2023-11-29 02:34:11,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 02:34:11,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:11,925 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:11,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 02:34:12,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 02:34:12,125 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:34:12,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:12,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1840971119, now seen corresponding path program 1 times [2023-11-29 02:34:12,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:34:12,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374946147] [2023-11-29 02:34:12,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:12,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:34:12,144 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:34:12,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1144816451] [2023-11-29 02:34:12,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:12,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:34:12,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:34:12,145 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:34:12,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 02:34:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:12,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 02:34:12,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:20,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 02:34:20,954 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:34:20,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:34:20,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374946147] [2023-11-29 02:34:20,955 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:34:20,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144816451] [2023-11-29 02:34:20,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144816451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:34:20,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:34:20,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 02:34:20,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477182920] [2023-11-29 02:34:20,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:34:20,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:34:20,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:34:20,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:34:20,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:34:20,957 INFO L87 Difference]: Start difference. First operand 275 states and 403 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:34:22,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:22,456 INFO L93 Difference]: Finished difference Result 684 states and 983 transitions. [2023-11-29 02:34:22,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 02:34:22,457 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 198 [2023-11-29 02:34:22,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:22,459 INFO L225 Difference]: With dead ends: 684 [2023-11-29 02:34:22,459 INFO L226 Difference]: Without dead ends: 410 [2023-11-29 02:34:22,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2023-11-29 02:34:22,460 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 263 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:22,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 659 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:34:22,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-11-29 02:34:22,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 288. [2023-11-29 02:34:22,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 215 states have (on average 1.3534883720930233) internal successors, (291), 215 states have internal predecessors, (291), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 02:34:22,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 419 transitions. [2023-11-29 02:34:22,482 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 419 transitions. Word has length 198 [2023-11-29 02:34:22,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:22,483 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 419 transitions. [2023-11-29 02:34:22,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:34:22,483 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 419 transitions. [2023-11-29 02:34:22,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 02:34:22,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:22,484 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:22,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-29 02:34:22,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 02:34:22,685 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:34:22,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:22,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1752931599, now seen corresponding path program 1 times [2023-11-29 02:34:22,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:34:22,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961278420] [2023-11-29 02:34:22,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:22,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:34:22,700 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:34:22,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1258129632] [2023-11-29 02:34:22,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:22,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:34:22,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:34:22,702 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:34:22,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 02:34:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:22,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 02:34:22,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:29,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 993 proven. 54 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2023-11-29 02:34:29,411 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:34:39,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 02:34:39,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:34:39,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961278420] [2023-11-29 02:34:39,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:34:39,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258129632] [2023-11-29 02:34:39,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258129632] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 02:34:39,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:34:39,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 22 [2023-11-29 02:34:39,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862968468] [2023-11-29 02:34:39,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:34:39,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:34:39,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:34:39,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:34:39,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2023-11-29 02:34:39,187 INFO L87 Difference]: Start difference. First operand 288 states and 419 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:34:42,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:42,666 INFO L93 Difference]: Finished difference Result 731 states and 1038 transitions. [2023-11-29 02:34:42,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 02:34:42,667 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 198 [2023-11-29 02:34:42,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:42,669 INFO L225 Difference]: With dead ends: 731 [2023-11-29 02:34:42,669 INFO L226 Difference]: Without dead ends: 444 [2023-11-29 02:34:42,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=285, Invalid=1275, Unknown=0, NotChecked=0, Total=1560 [2023-11-29 02:34:42,670 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 280 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:42,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 858 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 02:34:42,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2023-11-29 02:34:42,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 275. [2023-11-29 02:34:42,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 202 states have (on average 1.3514851485148516) internal successors, (273), 202 states have internal predecessors, (273), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 02:34:42,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 401 transitions. [2023-11-29 02:34:42,694 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 401 transitions. Word has length 198 [2023-11-29 02:34:42,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:42,694 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 401 transitions. [2023-11-29 02:34:42,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:34:42,694 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 401 transitions. [2023-11-29 02:34:42,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 02:34:42,695 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:42,695 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:42,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 02:34:42,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:34:42,896 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:34:42,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:42,897 INFO L85 PathProgramCache]: Analyzing trace with hash 819902765, now seen corresponding path program 1 times [2023-11-29 02:34:42,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:34:42,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797342185] [2023-11-29 02:34:42,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:42,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:34:42,912 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:34:42,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1850705500] [2023-11-29 02:34:42,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:42,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:34:42,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:34:42,913 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:34:42,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 02:34:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:43,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 02:34:43,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:50,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 02:34:50,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:34:50,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:34:50,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797342185] [2023-11-29 02:34:50,320 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:34:50,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850705500] [2023-11-29 02:34:50,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850705500] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:34:50,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:34:50,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 02:34:50,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472066980] [2023-11-29 02:34:50,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:34:50,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:34:50,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:34:50,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:34:50,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:34:50,321 INFO L87 Difference]: Start difference. First operand 275 states and 401 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:34:50,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:50,984 INFO L93 Difference]: Finished difference Result 660 states and 945 transitions. [2023-11-29 02:34:50,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 02:34:50,985 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 198 [2023-11-29 02:34:50,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:50,986 INFO L225 Difference]: With dead ends: 660 [2023-11-29 02:34:50,986 INFO L226 Difference]: Without dead ends: 386 [2023-11-29 02:34:50,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2023-11-29 02:34:50,988 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 201 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:50,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 843 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:34:50,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2023-11-29 02:34:51,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 272. [2023-11-29 02:34:51,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 199 states have (on average 1.3366834170854272) internal successors, (266), 199 states have internal predecessors, (266), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 02:34:51,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 394 transitions. [2023-11-29 02:34:51,010 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 394 transitions. Word has length 198 [2023-11-29 02:34:51,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:51,010 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 394 transitions. [2023-11-29 02:34:51,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:34:51,011 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 394 transitions. [2023-11-29 02:34:51,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 02:34:51,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:51,012 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:51,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 02:34:51,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:34:51,213 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:34:51,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:51,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1520967343, now seen corresponding path program 1 times [2023-11-29 02:34:51,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:34:51,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729921455] [2023-11-29 02:34:51,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:51,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:34:51,232 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:34:51,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [669502680] [2023-11-29 02:34:51,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:51,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:34:51,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:34:51,233 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:34:51,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 02:34:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:51,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 02:34:51,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:53,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 02:34:53,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:34:53,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:34:53,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729921455] [2023-11-29 02:34:53,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:34:53,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669502680] [2023-11-29 02:34:53,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669502680] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:34:53,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:34:53,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 02:34:53,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192077482] [2023-11-29 02:34:53,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:34:53,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:34:53,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:34:53,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:34:53,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:34:53,928 INFO L87 Difference]: Start difference. First operand 272 states and 394 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:34:54,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:54,465 INFO L93 Difference]: Finished difference Result 657 states and 934 transitions. [2023-11-29 02:34:54,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 02:34:54,465 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 198 [2023-11-29 02:34:54,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:54,467 INFO L225 Difference]: With dead ends: 657 [2023-11-29 02:34:54,467 INFO L226 Difference]: Without dead ends: 386 [2023-11-29 02:34:54,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2023-11-29 02:34:54,469 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 192 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:54,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 833 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:34:54,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2023-11-29 02:34:54,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 262. [2023-11-29 02:34:54,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 189 states have (on average 1.3333333333333333) internal successors, (252), 189 states have internal predecessors, (252), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 02:34:54,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 380 transitions. [2023-11-29 02:34:54,505 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 380 transitions. Word has length 198 [2023-11-29 02:34:54,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:54,505 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 380 transitions. [2023-11-29 02:34:54,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:34:54,505 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 380 transitions. [2023-11-29 02:34:54,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-11-29 02:34:54,507 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:54,507 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:54,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 02:34:54,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:34:54,708 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:34:54,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:54,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1361943708, now seen corresponding path program 1 times [2023-11-29 02:34:54,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:34:54,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570355570] [2023-11-29 02:34:54,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:54,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:34:54,724 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:34:54,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [138292162] [2023-11-29 02:34:54,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:54,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:34:54,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:34:54,725 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:34:54,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 02:34:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:54,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 02:34:54,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:55,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 717 proven. 72 refuted. 0 times theorem prover too weak. 1195 trivial. 0 not checked. [2023-11-29 02:34:55,551 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:35:11,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 02:35:11,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:35:11,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570355570] [2023-11-29 02:35:11,193 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:35:11,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138292162] [2023-11-29 02:35:11,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138292162] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 02:35:11,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:35:11,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2023-11-29 02:35:11,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855378213] [2023-11-29 02:35:11,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:35:11,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:35:11,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:35:11,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:35:11,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:35:11,195 INFO L87 Difference]: Start difference. First operand 262 states and 380 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:35:26,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:35:26,547 INFO L93 Difference]: Finished difference Result 619 states and 892 transitions. [2023-11-29 02:35:26,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 02:35:26,548 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 199 [2023-11-29 02:35:26,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:35:26,550 INFO L225 Difference]: With dead ends: 619 [2023-11-29 02:35:26,550 INFO L226 Difference]: Without dead ends: 351 [2023-11-29 02:35:26,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 380 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=171, Invalid=699, Unknown=0, NotChecked=0, Total=870 [2023-11-29 02:35:26,551 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 256 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:35:26,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 727 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:35:26,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-11-29 02:35:26,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 262. [2023-11-29 02:35:26,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 189 states have (on average 1.3280423280423281) internal successors, (251), 189 states have internal predecessors, (251), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-29 02:35:26,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 379 transitions. [2023-11-29 02:35:26,575 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 379 transitions. Word has length 199 [2023-11-29 02:35:26,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:35:26,575 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 379 transitions. [2023-11-29 02:35:26,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 02:35:26,576 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 379 transitions. [2023-11-29 02:35:26,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-11-29 02:35:26,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:35:26,577 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:35:26,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 02:35:26,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 02:35:26,778 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:35:26,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:35:26,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1754970718, now seen corresponding path program 1 times [2023-11-29 02:35:26,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:35:26,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59432155] [2023-11-29 02:35:26,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:35:26,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:35:26,795 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:35:26,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [850972340] [2023-11-29 02:35:26,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:35:26,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:35:26,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:35:26,796 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:35:26,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 02:35:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:35:26,948 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:35:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:35:27,114 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:35:27,114 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 02:35:27,116 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 02:35:27,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-29 02:35:27,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 02:35:27,320 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:35:27,322 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 02:35:27,407 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 02:35:27,408 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short24 could not be translated [2023-11-29 02:35:27,408 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated [2023-11-29 02:35:27,408 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short24 could not be translated [2023-11-29 02:35:27,408 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short24 could not be translated [2023-11-29 02:35:27,409 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated [2023-11-29 02:35:27,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:35:27 BoogieIcfgContainer [2023-11-29 02:35:27,431 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 02:35:27,431 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:35:27,431 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:35:27,432 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:35:27,432 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:29:53" (3/4) ... [2023-11-29 02:35:27,433 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 02:35:27,434 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:35:27,434 INFO L158 Benchmark]: Toolchain (without parser) took 335421.04ms. Allocated memory was 130.0MB in the beginning and 885.0MB in the end (delta: 755.0MB). Free memory was 98.8MB in the beginning and 634.1MB in the end (delta: -535.3MB). Peak memory consumption was 222.4MB. Max. memory is 16.1GB. [2023-11-29 02:35:27,435 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 57.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:35:27,435 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.94ms. Allocated memory is still 130.0MB. Free memory was 98.8MB in the beginning and 82.6MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 02:35:27,435 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.60ms. Allocated memory is still 130.0MB. Free memory was 82.6MB in the beginning and 76.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 02:35:27,436 INFO L158 Benchmark]: Boogie Preprocessor took 79.74ms. Allocated memory is still 130.0MB. Free memory was 76.2MB in the beginning and 63.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 02:35:27,436 INFO L158 Benchmark]: RCFGBuilder took 557.93ms. Allocated memory was 130.0MB in the beginning and 163.6MB in the end (delta: 33.6MB). Free memory was 63.7MB in the beginning and 121.6MB in the end (delta: -57.9MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2023-11-29 02:35:27,436 INFO L158 Benchmark]: TraceAbstraction took 334408.16ms. Allocated memory was 163.6MB in the beginning and 885.0MB in the end (delta: 721.4MB). Free memory was 120.5MB in the beginning and 634.1MB in the end (delta: -513.5MB). Peak memory consumption was 207.8MB. Max. memory is 16.1GB. [2023-11-29 02:35:27,437 INFO L158 Benchmark]: Witness Printer took 2.65ms. Allocated memory is still 885.0MB. Free memory is still 634.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:35:27,438 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 57.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.94ms. Allocated memory is still 130.0MB. Free memory was 98.8MB in the beginning and 82.6MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.60ms. Allocated memory is still 130.0MB. Free memory was 82.6MB in the beginning and 76.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.74ms. Allocated memory is still 130.0MB. Free memory was 76.2MB in the beginning and 63.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 557.93ms. Allocated memory was 130.0MB in the beginning and 163.6MB in the end (delta: 33.6MB). Free memory was 63.7MB in the beginning and 121.6MB in the end (delta: -57.9MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. * TraceAbstraction took 334408.16ms. Allocated memory was 163.6MB in the beginning and 885.0MB in the end (delta: 721.4MB). Free memory was 120.5MB in the beginning and 634.1MB in the end (delta: -513.5MB). Peak memory consumption was 207.8MB. Max. memory is 16.1GB. * Witness Printer took 2.65ms. Allocated memory is still 885.0MB. Free memory is still 634.1MB. 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~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short24 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short24 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short24 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 155, overapproximation of someBinaryFLOATComparisonOperation at line 155. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 4; [L23] unsigned char var_1_2 = 8; [L24] unsigned char var_1_3 = 50; [L25] unsigned short int var_1_4 = 1; [L26] unsigned short int var_1_5 = 16; [L27] unsigned char var_1_6 = 4; [L28] unsigned char var_1_7 = 2; [L29] unsigned char var_1_8 = 128; [L30] unsigned char var_1_9 = 0; [L31] unsigned char var_1_10 = 100; [L32] signed short int var_1_11 = 10; [L33] unsigned char var_1_12 = 1; [L34] unsigned char var_1_13 = 1; [L35] unsigned char var_1_14 = 0; [L36] signed long int var_1_15 = 128; [L37] unsigned char var_1_16 = 128; [L38] unsigned char var_1_17 = 5; [L39] double var_1_18 = 3.6; [L40] double var_1_19 = 31.45; [L41] float var_1_20 = 50.25; [L42] float var_1_21 = 9.8; [L43] float var_1_22 = 4.65; [L44] float var_1_23 = 99.65; [L45] unsigned char var_1_24 = 32; [L159] isInitial = 1 [L160] FCALL initially() [L161] COND TRUE 1 [L162] FCALL updateLastVariables() [L163] CALL updateVariables() [L101] var_1_2 = __VERIFIER_nondet_uchar() [L102] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_3=50, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_3=50, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L102] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_3=50, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L103] CALL assume_abort_if_not(var_1_2 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_3=50, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_3=50, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L103] RET assume_abort_if_not(var_1_2 <= 255) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_3=50, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L104] var_1_3 = __VERIFIER_nondet_uchar() [L105] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L105] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L106] CALL assume_abort_if_not(var_1_3 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L106] RET assume_abort_if_not(var_1_3 <= 255) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L107] var_1_4 = __VERIFIER_nondet_ushort() [L108] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L108] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L109] CALL assume_abort_if_not(var_1_4 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L109] RET assume_abort_if_not(var_1_4 <= 65534) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L110] var_1_5 = __VERIFIER_nondet_ushort() [L111] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L111] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L112] CALL assume_abort_if_not(var_1_5 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L112] RET assume_abort_if_not(var_1_5 <= 65534) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L113] var_1_7 = __VERIFIER_nondet_uchar() [L114] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_8=128, var_1_9=0] [L114] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_8=128, var_1_9=0] [L115] CALL assume_abort_if_not(var_1_7 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L115] RET assume_abort_if_not(var_1_7 <= 254) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L116] var_1_8 = __VERIFIER_nondet_uchar() [L117] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_9=0] [L117] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_9=0] [L118] CALL assume_abort_if_not(var_1_8 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L118] RET assume_abort_if_not(var_1_8 <= 254) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L119] var_1_9 = __VERIFIER_nondet_uchar() [L120] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3] [L120] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3] [L121] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L121] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L122] var_1_10 = __VERIFIER_nondet_uchar() [L123] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L123] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L124] CALL assume_abort_if_not(var_1_10 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L124] RET assume_abort_if_not(var_1_10 <= 254) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L125] var_1_12 = __VERIFIER_nondet_uchar() [L126] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L126] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L127] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L127] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L128] var_1_13 = __VERIFIER_nondet_uchar() [L129] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L129] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L130] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L130] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L131] var_1_14 = __VERIFIER_nondet_uchar() [L132] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L132] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L133] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L133] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L134] var_1_16 = __VERIFIER_nondet_uchar() [L135] CALL assume_abort_if_not(var_1_16 >= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L135] RET assume_abort_if_not(var_1_16 >= 127) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L136] CALL assume_abort_if_not(var_1_16 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L136] RET assume_abort_if_not(var_1_16 <= 255) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L137] var_1_17 = __VERIFIER_nondet_uchar() [L138] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L138] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L139] CALL assume_abort_if_not(var_1_17 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L139] RET assume_abort_if_not(var_1_17 <= 127) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L140] var_1_19 = __VERIFIER_nondet_double() [L141] CALL assume_abort_if_not((var_1_19 >= -922337.2036854765600e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 9223372.036854765600e+12F && var_1_19 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L141] RET assume_abort_if_not((var_1_19 >= -922337.2036854765600e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 9223372.036854765600e+12F && var_1_19 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L142] var_1_21 = __VERIFIER_nondet_float() [L143] CALL assume_abort_if_not((var_1_21 >= -461168.6018427382800e+13F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 4611686.018427382800e+12F && var_1_21 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L143] RET assume_abort_if_not((var_1_21 >= -461168.6018427382800e+13F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 4611686.018427382800e+12F && var_1_21 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L144] var_1_22 = __VERIFIER_nondet_float() [L145] CALL assume_abort_if_not((var_1_22 >= -461168.6018427382800e+13F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 4611686.018427382800e+12F && var_1_22 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L145] RET assume_abort_if_not((var_1_22 >= -461168.6018427382800e+13F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 4611686.018427382800e+12F && var_1_22 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L146] var_1_23 = __VERIFIER_nondet_float() [L147] CALL assume_abort_if_not((var_1_23 >= -461168.6018427382800e+13F && var_1_23 <= -1.0e-20F) || (var_1_23 <= 4611686.018427382800e+12F && var_1_23 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L147] RET assume_abort_if_not((var_1_23 >= -461168.6018427382800e+13F && var_1_23 <= -1.0e-20F) || (var_1_23 <= 4611686.018427382800e+12F && var_1_23 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L148] var_1_24 = __VERIFIER_nondet_uchar() [L149] CALL assume_abort_if_not(var_1_24 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L149] RET assume_abort_if_not(var_1_24 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L150] CALL assume_abort_if_not(var_1_24 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L150] RET assume_abort_if_not(var_1_24 <= 255) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L163] RET updateVariables() [L164] CALL step() [L49] unsigned char stepLocal_0 = var_1_3; VAL [isInitial=1, stepLocal_0=0, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L50] COND TRUE var_1_2 <= stepLocal_0 [L51] var_1_1 = ((((((((var_1_2) < (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))))) > (var_1_5)) ? (((((var_1_2) < (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))))) : (var_1_5))) VAL [isInitial=1, stepLocal_0=0, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=201/4, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L53] signed long int stepLocal_1 = 5; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=5, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=201/4, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=3, var_1_9=0] [L54] COND TRUE var_1_1 < stepLocal_1 [L55] var_1_6 = ((((((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) > (var_1_10)) ? (((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) : (var_1_10))) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=5, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=201/4, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=3, var_1_9=0] [L59] unsigned char stepLocal_2 = var_1_14; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=5, stepLocal_2=0, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=201/4, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=3, var_1_9=0] [L60] COND FALSE !(\read(var_1_12)) [L71] var_1_11 = var_1_2 VAL [isInitial=1, stepLocal_0=0, stepLocal_1=5, stepLocal_2=0, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=201/4, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=3, var_1_9=0] [L73] unsigned char stepLocal_3 = var_1_2; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=5, stepLocal_2=0, stepLocal_3=0, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=201/4, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=3, var_1_9=0] [L74] COND TRUE stepLocal_3 <= (((((128) > (var_1_16)) ? (128) : (var_1_16))) - var_1_17) [L75] var_1_15 = (((((var_1_5 - var_1_2)) > (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7))))) ? ((var_1_5 - var_1_2)) : (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7)))))) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=5, stepLocal_2=0, stepLocal_3=0, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=2, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=201/4, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=3, var_1_9=0] [L79] EXPR 200 << var_1_1 VAL [isInitial=1, stepLocal_0=0, stepLocal_1=5, stepLocal_2=0, stepLocal_3=0, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=2, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=201/4, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=3, var_1_9=0] [L79] signed long int stepLocal_4 = (200 << var_1_1) * (var_1_17 * var_1_7); [L80] COND FALSE !(stepLocal_4 < var_1_11) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=5, stepLocal_2=0, stepLocal_3=0, stepLocal_4=0, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=2, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=201/4, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=3, var_1_9=0] [L83] unsigned char stepLocal_5 = var_1_24; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=5, stepLocal_2=0, stepLocal_3=0, stepLocal_4=0, stepLocal_5=25, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=2, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=201/4, var_1_24=25, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=3, var_1_9=0] [L84] COND FALSE !(\read(var_1_13)) [L97] var_1_20 = var_1_23 VAL [isInitial=1, stepLocal_0=0, stepLocal_1=5, stepLocal_2=0, stepLocal_3=0, stepLocal_4=0, stepLocal_5=25, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=2, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=2, var_1_23=2, var_1_24=25, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=3, var_1_9=0] [L164] RET step() [L165] CALL, EXPR property() [L155] EXPR (((((var_1_2 <= var_1_3) ? (var_1_1 == ((unsigned short int) ((((((((var_1_2) < (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))))) > (var_1_5)) ? (((((var_1_2) < (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))))) : (var_1_5))))) : 1) && ((var_1_1 < 5) ? (var_1_6 == ((unsigned char) ((((((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) > (var_1_10)) ? (((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) : (var_1_10))))) : (var_1_6 == ((unsigned char) var_1_10)))) && (var_1_12 ? (var_1_13 ? (((var_1_4 > (~ var_1_10)) && var_1_14) ? (var_1_11 == ((signed short int) ((((var_1_8) > ((var_1_10 + var_1_6))) ? (var_1_8) : ((var_1_10 + var_1_6)))))) : (var_1_11 == ((signed short int) var_1_3))) : (var_1_11 == ((signed short int) var_1_8))) : (var_1_11 == ((signed short int) var_1_2)))) && ((var_1_2 <= (((((128) > (var_1_16)) ? (128) : (var_1_16))) - var_1_17)) ? (var_1_15 == ((signed long int) (((((var_1_5 - var_1_2)) > (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7))))) ? ((var_1_5 - var_1_2)) : (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7)))))))) : (var_1_15 == ((signed long int) var_1_6)))) && ((((200 << var_1_1) * (var_1_17 * var_1_7)) < var_1_11) ? (var_1_18 == ((double) var_1_19)) : 1) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=2, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=2, var_1_23=2, var_1_24=25, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=3, var_1_9=0] [L155] EXPR 200 << var_1_1 VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=2, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=2, var_1_23=2, var_1_24=25, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=3, var_1_9=0] [L155] EXPR (((((var_1_2 <= var_1_3) ? (var_1_1 == ((unsigned short int) ((((((((var_1_2) < (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))))) > (var_1_5)) ? (((((var_1_2) < (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))))) : (var_1_5))))) : 1) && ((var_1_1 < 5) ? (var_1_6 == ((unsigned char) ((((((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) > (var_1_10)) ? (((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) : (var_1_10))))) : (var_1_6 == ((unsigned char) var_1_10)))) && (var_1_12 ? (var_1_13 ? (((var_1_4 > (~ var_1_10)) && var_1_14) ? (var_1_11 == ((signed short int) ((((var_1_8) > ((var_1_10 + var_1_6))) ? (var_1_8) : ((var_1_10 + var_1_6)))))) : (var_1_11 == ((signed short int) var_1_3))) : (var_1_11 == ((signed short int) var_1_8))) : (var_1_11 == ((signed short int) var_1_2)))) && ((var_1_2 <= (((((128) > (var_1_16)) ? (128) : (var_1_16))) - var_1_17)) ? (var_1_15 == ((signed long int) (((((var_1_5 - var_1_2)) > (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7))))) ? ((var_1_5 - var_1_2)) : (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7)))))))) : (var_1_15 == ((signed long int) var_1_6)))) && ((((200 << var_1_1) * (var_1_17 * var_1_7)) < var_1_11) ? (var_1_18 == ((double) var_1_19)) : 1) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=2, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=2, var_1_23=2, var_1_24=25, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=3, var_1_9=0] [L155-L156] return ((((((var_1_2 <= var_1_3) ? (var_1_1 == ((unsigned short int) ((((((((var_1_2) < (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))))) > (var_1_5)) ? (((((var_1_2) < (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))))) : (var_1_5))))) : 1) && ((var_1_1 < 5) ? (var_1_6 == ((unsigned char) ((((((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) > (var_1_10)) ? (((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) : (var_1_10))))) : (var_1_6 == ((unsigned char) var_1_10)))) && (var_1_12 ? (var_1_13 ? (((var_1_4 > (~ var_1_10)) && var_1_14) ? (var_1_11 == ((signed short int) ((((var_1_8) > ((var_1_10 + var_1_6))) ? (var_1_8) : ((var_1_10 + var_1_6)))))) : (var_1_11 == ((signed short int) var_1_3))) : (var_1_11 == ((signed short int) var_1_8))) : (var_1_11 == ((signed short int) var_1_2)))) && ((var_1_2 <= (((((128) > (var_1_16)) ? (128) : (var_1_16))) - var_1_17)) ? (var_1_15 == ((signed long int) (((((var_1_5 - var_1_2)) > (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7))))) ? ((var_1_5 - var_1_2)) : (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7)))))))) : (var_1_15 == ((signed long int) var_1_6)))) && ((((200 << var_1_1) * (var_1_17 * var_1_7)) < var_1_11) ? (var_1_18 == ((double) var_1_19)) : 1)) && (var_1_13 ? (var_1_14 ? (var_1_12 ? (var_1_20 == ((float) (var_1_21 + ((((var_1_22) > (var_1_23)) ? (var_1_22) : (var_1_23)))))) : 1) : ((var_1_24 <= 0) ? (var_1_20 == ((float) var_1_19)) : (var_1_20 == ((float) var_1_22)))) : (var_1_20 == ((float) var_1_23))) ; [L165] RET, EXPR property() [L165] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=2, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=2, var_1_23=2, var_1_24=25, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=3, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=2, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=2, var_1_23=2, var_1_24=25, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=3, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 334.2s, OverallIterations: 23, TraceHistogramMax: 32, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 59.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5011 SdHoareTripleChecker+Valid, 12.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5003 mSDsluCounter, 15053 SdHoareTripleChecker+Invalid, 11.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11877 mSDsCounter, 427 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6265 IncrementalHoareTripleChecker+Invalid, 6692 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 427 mSolverCounterUnsat, 3176 mSDtfsCounter, 6265 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5962 GetRequests, 5453 SyntacticMatches, 1 SemanticMatches, 508 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 4371 ImplicationChecksByTransitivity, 66.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=288occurred in iteration=18, InterpolantAutomatonStates: 437, 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, 22 MinimizatonAttempts, 2310 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 264.9s InterpolantComputationTime, 4741 NumberOfCodeBlocks, 4741 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 5698 ConstructedInterpolants, 6 QuantifiedInterpolants, 90222 SizeOfPredicates, 437 NumberOfNonLiveVariables, 9382 ConjunctsInSsa, 399 ConjunctsInUnsatCore, 29 InterpolantComputations, 21 PerfectInterpolantSequences, 56768/57536 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 02:35:27,660 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-11-29 02:35:27,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/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_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-28.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/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_88ad8e26-81be-4fc3-b92f-4da5157f45e6/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 d2c75dca6200a745b1e9a10165d81ba987342ada267360da9c3346293958a99c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:35:29,463 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:35:29,531 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 02:35:29,546 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:35:29,546 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:35:29,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:35:29,576 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:35:29,577 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:35:29,578 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:35:29,578 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:35:29,579 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:35:29,579 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:35:29,580 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:35:29,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:35:29,581 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:35:29,582 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:35:29,583 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:35:29,583 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:35:29,584 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:35:29,584 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:35:29,585 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:35:29,585 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:35:29,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:35:29,586 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 02:35:29,587 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 02:35:29,587 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 02:35:29,587 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:35:29,588 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:35:29,588 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:35:29,589 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:35:29,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:35:29,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:35:29,590 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:35:29,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:35:29,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:35:29,591 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:35:29,591 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:35:29,591 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 02:35:29,591 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 02:35:29,592 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:35:29,592 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:35:29,592 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:35:29,592 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:35:29,593 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:35:29,593 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 02:35:29,593 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_88ad8e26-81be-4fc3-b92f-4da5157f45e6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2c75dca6200a745b1e9a10165d81ba987342ada267360da9c3346293958a99c [2023-11-29 02:35:29,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:35:29,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:35:29,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:35:29,918 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:35:29,919 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:35:29,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-28.i [2023-11-29 02:35:32,742 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:35:32,944 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:35:32,945 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-28.i [2023-11-29 02:35:32,954 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/data/0c3a7021b/4ac57760a2a541b9bc1a9473577c1a6c/FLAG03b8ead08 [2023-11-29 02:35:32,967 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/data/0c3a7021b/4ac57760a2a541b9bc1a9473577c1a6c [2023-11-29 02:35:32,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:35:32,971 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:35:32,973 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:35:32,973 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:35:32,978 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:35:32,979 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:35:32" (1/1) ... [2023-11-29 02:35:32,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f17b26a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:35:32, skipping insertion in model container [2023-11-29 02:35:32,981 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:35:32" (1/1) ... [2023-11-29 02:35:33,011 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:35:33,134 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_88ad8e26-81be-4fc3-b92f-4da5157f45e6/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-28.i[917,930] [2023-11-29 02:35:33,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:35:33,215 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:35:33,228 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_88ad8e26-81be-4fc3-b92f-4da5157f45e6/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-28.i[917,930] [2023-11-29 02:35:33,267 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:35:33,285 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:35:33,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:35:33 WrapperNode [2023-11-29 02:35:33,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:35:33,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:35:33,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:35:33,287 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:35:33,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:35:33" (1/1) ... [2023-11-29 02:35:33,306 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:35:33" (1/1) ... [2023-11-29 02:35:33,338 INFO L138 Inliner]: procedures = 27, calls = 45, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 175 [2023-11-29 02:35:33,339 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:35:33,340 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:35:33,340 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:35:33,340 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:35:33,352 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:35:33" (1/1) ... [2023-11-29 02:35:33,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:35:33" (1/1) ... [2023-11-29 02:35:33,358 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:35:33" (1/1) ... [2023-11-29 02:35:33,374 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]. [2023-11-29 02:35:33,374 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:35:33" (1/1) ... [2023-11-29 02:35:33,374 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:35:33" (1/1) ... [2023-11-29 02:35:33,389 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:35:33" (1/1) ... [2023-11-29 02:35:33,393 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:35:33" (1/1) ... [2023-11-29 02:35:33,397 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:35:33" (1/1) ... [2023-11-29 02:35:33,400 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:35:33" (1/1) ... [2023-11-29 02:35:33,405 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:35:33,406 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:35:33,406 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:35:33,406 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:35:33,407 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:35:33" (1/1) ... [2023-11-29 02:35:33,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:35:33,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:35:33,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:35:33,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:35:33,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:35:33,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 02:35:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 02:35:33,476 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 02:35:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:35:33,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:35:33,557 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:35:33,559 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:35:34,391 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:35:34,431 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:35:34,431 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:35:34,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:35:34 BoogieIcfgContainer [2023-11-29 02:35:34,432 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:35:34,435 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:35:34,435 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:35:34,438 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:35:34,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:35:32" (1/3) ... [2023-11-29 02:35:34,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b2bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:35:34, skipping insertion in model container [2023-11-29 02:35:34,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:35:33" (2/3) ... [2023-11-29 02:35:34,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b2bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:35:34, skipping insertion in model container [2023-11-29 02:35:34,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:35:34" (3/3) ... [2023-11-29 02:35:34,441 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-28.i [2023-11-29 02:35:34,460 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:35:34,460 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 02:35:34,507 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:35:34,514 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;@d6b5b08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:35:34,514 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 02:35:34,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 45 states have internal predecessors, (60), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 02:35:34,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-29 02:35:34,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:35:34,537 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:35:34,538 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:35:34,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:35:34,544 INFO L85 PathProgramCache]: Analyzing trace with hash -732933107, now seen corresponding path program 1 times [2023-11-29 02:35:34,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:35:34,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150620223] [2023-11-29 02:35:34,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:35:34,558 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:35:34,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:35:34,560 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:35:34,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 02:35:34,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:35:34,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 02:35:34,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:35:34,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 974 proven. 0 refuted. 0 times theorem prover too weak. 1010 trivial. 0 not checked. [2023-11-29 02:35:34,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:35:34,995 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:35:34,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [150620223] [2023-11-29 02:35:34,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [150620223] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:35:34,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:35:34,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:35:34,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820631764] [2023-11-29 02:35:34,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:35:35,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 02:35:35,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:35:35,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 02:35:35,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:35:35,036 INFO L87 Difference]: Start difference. First operand has 79 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 45 states have internal predecessors, (60), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) 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, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-29 02:35:35,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:35:35,625 INFO L93 Difference]: Finished difference Result 155 states and 278 transitions. [2023-11-29 02:35:35,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 02:35:35,635 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, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 194 [2023-11-29 02:35:35,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:35:35,642 INFO L225 Difference]: With dead ends: 155 [2023-11-29 02:35:35,642 INFO L226 Difference]: Without dead ends: 77 [2023-11-29 02:35:35,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:35:35,648 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:35:35,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:35:35,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-29 02:35:35,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-29 02:35:35,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 states have internal predecessors, (55), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 02:35:35,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 119 transitions. [2023-11-29 02:35:35,694 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 119 transitions. Word has length 194 [2023-11-29 02:35:35,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:35:35,695 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 119 transitions. [2023-11-29 02:35:35,695 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, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-29 02:35:35,695 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 119 transitions. [2023-11-29 02:35:35,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-29 02:35:35,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:35:35,701 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:35:35,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:35:35,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:35:35,902 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:35:35,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:35:35,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1361344277, now seen corresponding path program 1 times [2023-11-29 02:35:35,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:35:35,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833254851] [2023-11-29 02:35:35,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:35:35,904 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:35:35,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:35:35,905 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:35:35,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88ad8e26-81be-4fc3-b92f-4da5157f45e6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 02:35:36,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:35:36,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 02:35:36,325 INFO L285 TraceCheckSpWp]: Computing forward predicates...