./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-13.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-13.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ --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 8d4109ae03a3c02a4964ae7b090d66bce817f303884ee31660fd67b3b1f99877 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:23:42,061 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:23:42,232 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 22:23:42,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:23:42,238 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:23:42,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:23:42,279 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:23:42,279 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:23:42,280 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:23:42,286 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:23:42,286 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:23:42,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:23:42,289 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:23:42,291 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:23:42,291 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:23:42,292 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:23:42,292 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:23:42,293 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:23:42,293 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:23:42,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:23:42,294 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:23:42,295 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:23:42,295 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:23:42,296 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:23:42,296 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:23:42,297 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:23:42,297 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:23:42,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:23:42,299 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:23:42,299 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:23:42,300 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:23:42,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:23:42,301 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:23:42,301 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:23:42,301 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:23:42,301 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:23:42,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:23:42,302 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:23:42,302 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:23:42,302 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:23:42,302 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:23:42,303 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:23:42,303 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_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d4109ae03a3c02a4964ae7b090d66bce817f303884ee31660fd67b3b1f99877 [2023-11-23 22:23:42,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:23:42,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:23:42,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:23:42,724 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:23:42,725 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:23:42,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-13.i [2023-11-23 22:23:46,039 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:23:46,310 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:23:46,311 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-13.i [2023-11-23 22:23:46,329 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/data/62750245b/76e8344082e64e118eebc58e9c9a9bc8/FLAG6a7880260 [2023-11-23 22:23:46,345 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/data/62750245b/76e8344082e64e118eebc58e9c9a9bc8 [2023-11-23 22:23:46,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:23:46,349 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:23:46,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:23:46,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:23:46,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:23:46,357 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:23:46" (1/1) ... [2023-11-23 22:23:46,359 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd37a21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:46, skipping insertion in model container [2023-11-23 22:23:46,359 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:23:46" (1/1) ... [2023-11-23 22:23:46,397 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:23:46,558 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_838c34d7-c7f8-477d-af9d-b2236af41d8c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-13.i[919,932] [2023-11-23 22:23:46,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:23:46,664 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:23:46,680 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_838c34d7-c7f8-477d-af9d-b2236af41d8c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-13.i[919,932] [2023-11-23 22:23:46,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:23:46,778 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:23:46,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:46 WrapperNode [2023-11-23 22:23:46,779 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:23:46,780 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:23:46,780 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:23:46,781 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:23:46,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:46" (1/1) ... [2023-11-23 22:23:46,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:46" (1/1) ... [2023-11-23 22:23:46,893 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 189 [2023-11-23 22:23:46,894 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:23:46,895 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:23:46,895 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:23:46,896 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:23:46,908 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:46" (1/1) ... [2023-11-23 22:23:46,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:46" (1/1) ... [2023-11-23 22:23:46,913 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:46" (1/1) ... [2023-11-23 22:23:46,936 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 22:23:46,936 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:46" (1/1) ... [2023-11-23 22:23:46,937 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:46" (1/1) ... [2023-11-23 22:23:46,954 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:46" (1/1) ... [2023-11-23 22:23:46,959 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:46" (1/1) ... [2023-11-23 22:23:46,964 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:46" (1/1) ... [2023-11-23 22:23:46,969 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:46" (1/1) ... [2023-11-23 22:23:46,978 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:23:46,979 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:23:46,980 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:23:46,980 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:23:46,982 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:46" (1/1) ... [2023-11-23 22:23:46,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:23:47,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:23:47,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:23:47,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:23:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:23:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 22:23:47,085 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 22:23:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:23:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:23:47,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:23:47,215 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:23:47,217 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:23:47,822 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:23:47,888 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:23:47,888 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 22:23:47,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:23:47 BoogieIcfgContainer [2023-11-23 22:23:47,889 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:23:47,893 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:23:47,893 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:23:47,897 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:23:47,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:23:46" (1/3) ... [2023-11-23 22:23:47,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@113391f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:23:47, skipping insertion in model container [2023-11-23 22:23:47,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:46" (2/3) ... [2023-11-23 22:23:47,900 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@113391f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:23:47, skipping insertion in model container [2023-11-23 22:23:47,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:23:47" (3/3) ... [2023-11-23 22:23:47,902 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-13.i [2023-11-23 22:23:47,926 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:23:47,926 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:23:47,996 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:23:48,003 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;@24c6ff6f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:23:48,004 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:23:48,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 51 states have (on average 1.5686274509803921) internal successors, (80), 52 states have internal predecessors, (80), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 22:23:48,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-23 22:23:48,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:48,026 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:48,027 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:48,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:48,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1194814549, now seen corresponding path program 1 times [2023-11-23 22:23:48,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:23:48,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636248345] [2023-11-23 22:23:48,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:48,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:23:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:48,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:23:48,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636248345] [2023-11-23 22:23:48,250 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 22:23:48,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887139878] [2023-11-23 22:23:48,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:48,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:23:48,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:23:48,253 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:23:48,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:23:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:48,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 22:23:48,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:23:48,612 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2023-11-23 22:23:48,617 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:23:48,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887139878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:23:48,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:23:48,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:23:48,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836693374] [2023-11-23 22:23:48,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:23:48,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:23:48,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:23:48,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:23:48,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:23:48,683 INFO L87 Difference]: Start difference. First operand has 74 states, 51 states have (on average 1.5686274509803921) internal successors, (80), 52 states have internal predecessors, (80), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 22:23:48,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:23:48,767 INFO L93 Difference]: Finished difference Result 145 states and 258 transitions. [2023-11-23 22:23:48,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:23:48,771 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 136 [2023-11-23 22:23:48,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:23:48,783 INFO L225 Difference]: With dead ends: 145 [2023-11-23 22:23:48,783 INFO L226 Difference]: Without dead ends: 72 [2023-11-23 22:23:48,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:23:48,794 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:23:48,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:23:48,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-23 22:23:48,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2023-11-23 22:23:48,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 50 states have (on average 1.46) internal successors, (73), 50 states have internal predecessors, (73), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 22:23:48,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 113 transitions. [2023-11-23 22:23:48,872 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 113 transitions. Word has length 136 [2023-11-23 22:23:48,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:23:48,872 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 113 transitions. [2023-11-23 22:23:48,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 22:23:48,873 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 113 transitions. [2023-11-23 22:23:48,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-23 22:23:48,885 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:48,885 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:48,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 22:23:49,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 22:23:49,100 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:49,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:49,100 INFO L85 PathProgramCache]: Analyzing trace with hash 336520611, now seen corresponding path program 1 times [2023-11-23 22:23:49,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:23:49,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10177029] [2023-11-23 22:23:49,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:49,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:23:49,225 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:23:49,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1598346794] [2023-11-23 22:23:49,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:49,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:23:49,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:23:49,229 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:23:49,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 22:23:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:49,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:23:49,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:23:49,545 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-23 22:23:49,545 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:23:49,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:23:49,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10177029] [2023-11-23 22:23:49,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:23:49,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598346794] [2023-11-23 22:23:49,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598346794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:23:49,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:23:49,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:23:49,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147284477] [2023-11-23 22:23:49,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:23:49,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:23:49,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:23:49,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:23:49,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:23:49,551 INFO L87 Difference]: Start difference. First operand 72 states and 113 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 22:23:49,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:23:49,618 INFO L93 Difference]: Finished difference Result 187 states and 292 transitions. [2023-11-23 22:23:49,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:23:49,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 136 [2023-11-23 22:23:49,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:23:49,623 INFO L225 Difference]: With dead ends: 187 [2023-11-23 22:23:49,623 INFO L226 Difference]: Without dead ends: 116 [2023-11-23 22:23:49,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:23:49,626 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 57 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:23:49,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 254 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:23:49,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-23 22:23:49,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 113. [2023-11-23 22:23:49,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 84 states have (on average 1.4761904761904763) internal successors, (124), 85 states have internal predecessors, (124), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-23 22:23:49,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 176 transitions. [2023-11-23 22:23:49,653 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 176 transitions. Word has length 136 [2023-11-23 22:23:49,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:23:49,657 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 176 transitions. [2023-11-23 22:23:49,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 22:23:49,658 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 176 transitions. [2023-11-23 22:23:49,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-23 22:23:49,662 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:49,662 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:49,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 22:23:49,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:23:49,885 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:49,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:49,885 INFO L85 PathProgramCache]: Analyzing trace with hash -481127839, now seen corresponding path program 1 times [2023-11-23 22:23:49,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:23:49,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144548855] [2023-11-23 22:23:49,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:49,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:23:49,971 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:23:49,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [660874773] [2023-11-23 22:23:49,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:49,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:23:49,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:23:49,980 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:23:49,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 22:23:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:50,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 22:23:50,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:23:50,512 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-23 22:23:50,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:23:50,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:23:50,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144548855] [2023-11-23 22:23:50,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:23:50,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660874773] [2023-11-23 22:23:50,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660874773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:23:50,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:23:50,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:23:50,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672314956] [2023-11-23 22:23:50,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:23:50,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:23:50,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:23:50,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:23:50,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:23:50,520 INFO L87 Difference]: Start difference. First operand 113 states and 176 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 22:23:51,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:23:51,002 INFO L93 Difference]: Finished difference Result 513 states and 795 transitions. [2023-11-23 22:23:51,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 22:23:51,004 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 136 [2023-11-23 22:23:51,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:23:51,013 INFO L225 Difference]: With dead ends: 513 [2023-11-23 22:23:51,014 INFO L226 Difference]: Without dead ends: 401 [2023-11-23 22:23:51,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2023-11-23 22:23:51,022 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 510 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:23:51,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 505 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:23:51,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-11-23 22:23:51,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 305. [2023-11-23 22:23:51,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 248 states have (on average 1.4959677419354838) internal successors, (371), 250 states have internal predecessors, (371), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-23 22:23:51,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 475 transitions. [2023-11-23 22:23:51,100 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 475 transitions. Word has length 136 [2023-11-23 22:23:51,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:23:51,101 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 475 transitions. [2023-11-23 22:23:51,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 22:23:51,102 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 475 transitions. [2023-11-23 22:23:51,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-23 22:23:51,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:51,104 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:51,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:23:51,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:23:51,326 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:51,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:51,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1819694751, now seen corresponding path program 1 times [2023-11-23 22:23:51,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:23:51,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130083177] [2023-11-23 22:23:51,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:51,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:23:51,387 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:23:51,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1372193373] [2023-11-23 22:23:51,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:51,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:23:51,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:23:51,396 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:23:51,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 22:23:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:51,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 22:23:51,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:23:52,283 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-23 22:23:52,284 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:23:52,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:23:52,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130083177] [2023-11-23 22:23:52,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:23:52,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372193373] [2023-11-23 22:23:52,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372193373] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:23:52,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:23:52,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:23:52,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614540384] [2023-11-23 22:23:52,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:23:52,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:23:52,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:23:52,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:23:52,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:23:52,293 INFO L87 Difference]: Start difference. First operand 305 states and 475 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 22:23:52,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:23:52,654 INFO L93 Difference]: Finished difference Result 781 states and 1211 transitions. [2023-11-23 22:23:52,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:23:52,654 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 136 [2023-11-23 22:23:52,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:23:52,660 INFO L225 Difference]: With dead ends: 781 [2023-11-23 22:23:52,660 INFO L226 Difference]: Without dead ends: 477 [2023-11-23 22:23:52,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-23 22:23:52,666 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 209 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:23:52,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 436 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:23:52,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2023-11-23 22:23:52,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 465. [2023-11-23 22:23:52,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 380 states have (on average 1.486842105263158) internal successors, (565), 383 states have internal predecessors, (565), 78 states have call successors, (78), 6 states have call predecessors, (78), 6 states have return successors, (78), 75 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-23 22:23:52,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 721 transitions. [2023-11-23 22:23:52,734 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 721 transitions. Word has length 136 [2023-11-23 22:23:52,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:23:52,735 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 721 transitions. [2023-11-23 22:23:52,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 22:23:52,735 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 721 transitions. [2023-11-23 22:23:52,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-23 22:23:52,737 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:52,737 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:52,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 22:23:52,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:23:52,955 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:52,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:52,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1469793598, now seen corresponding path program 1 times [2023-11-23 22:23:52,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:23:52,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099359883] [2023-11-23 22:23:52,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:52,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:23:52,987 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:23:52,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [405893250] [2023-11-23 22:23:52,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:52,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:23:52,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:23:52,989 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:23:53,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 22:23:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:53,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-23 22:23:53,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:23:53,679 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-23 22:23:53,682 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:23:53,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:23:53,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099359883] [2023-11-23 22:23:53,684 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:23:53,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405893250] [2023-11-23 22:23:53,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405893250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:23:53,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:23:53,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:23:53,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117854391] [2023-11-23 22:23:53,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:23:53,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:23:53,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:23:53,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:23:53,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:23:53,693 INFO L87 Difference]: Start difference. First operand 465 states and 721 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 22:23:53,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:23:53,962 INFO L93 Difference]: Finished difference Result 1097 states and 1701 transitions. [2023-11-23 22:23:53,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:23:53,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 137 [2023-11-23 22:23:53,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:23:53,971 INFO L225 Difference]: With dead ends: 1097 [2023-11-23 22:23:53,971 INFO L226 Difference]: Without dead ends: 633 [2023-11-23 22:23:53,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:23:53,973 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 135 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:23:53,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 465 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:23:53,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2023-11-23 22:23:54,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 504. [2023-11-23 22:23:54,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 398 states have (on average 1.4673366834170853) internal successors, (584), 401 states have internal predecessors, (584), 98 states have call successors, (98), 7 states have call predecessors, (98), 7 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2023-11-23 22:23:54,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 780 transitions. [2023-11-23 22:23:54,061 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 780 transitions. Word has length 137 [2023-11-23 22:23:54,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:23:54,062 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 780 transitions. [2023-11-23 22:23:54,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 22:23:54,063 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 780 transitions. [2023-11-23 22:23:54,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-23 22:23:54,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:54,065 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:54,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 22:23:54,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:23:54,285 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:54,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:54,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1353299006, now seen corresponding path program 1 times [2023-11-23 22:23:54,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:23:54,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063785014] [2023-11-23 22:23:54,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:54,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:23:54,329 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:23:54,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1646144136] [2023-11-23 22:23:54,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:54,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:23:54,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:23:54,332 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:23:54,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 22:23:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:54,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:23:54,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:23:54,571 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-23 22:23:54,571 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:23:54,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:23:54,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063785014] [2023-11-23 22:23:54,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:23:54,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646144136] [2023-11-23 22:23:54,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646144136] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:23:54,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:23:54,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:23:54,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729773459] [2023-11-23 22:23:54,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:23:54,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:23:54,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:23:54,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:23:54,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:23:54,574 INFO L87 Difference]: Start difference. First operand 504 states and 780 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 22:23:54,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:23:54,685 INFO L93 Difference]: Finished difference Result 1151 states and 1795 transitions. [2023-11-23 22:23:54,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:23:54,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 137 [2023-11-23 22:23:54,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:23:54,692 INFO L225 Difference]: With dead ends: 1151 [2023-11-23 22:23:54,692 INFO L226 Difference]: Without dead ends: 687 [2023-11-23 22:23:54,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:23:54,694 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 34 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:23:54,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 171 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:23:54,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2023-11-23 22:23:54,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 661. [2023-11-23 22:23:54,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 555 states have (on average 1.5063063063063062) internal successors, (836), 558 states have internal predecessors, (836), 98 states have call successors, (98), 7 states have call predecessors, (98), 7 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2023-11-23 22:23:54,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 1032 transitions. [2023-11-23 22:23:54,757 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 1032 transitions. Word has length 137 [2023-11-23 22:23:54,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:23:54,758 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 1032 transitions. [2023-11-23 22:23:54,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 22:23:54,759 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 1032 transitions. [2023-11-23 22:23:54,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-23 22:23:54,762 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:54,762 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:54,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 22:23:54,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:23:54,983 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:54,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:54,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1353358588, now seen corresponding path program 1 times [2023-11-23 22:23:54,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:23:54,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479224670] [2023-11-23 22:23:54,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:54,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:23:55,017 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:23:55,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1553424848] [2023-11-23 22:23:55,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:55,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:23:55,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:23:55,019 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:23:55,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 22:23:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:55,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:23:55,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:23:55,262 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-23 22:23:55,262 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:23:55,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:23:55,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479224670] [2023-11-23 22:23:55,263 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:23:55,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553424848] [2023-11-23 22:23:55,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553424848] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:23:55,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:23:55,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:23:55,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383103350] [2023-11-23 22:23:55,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:23:55,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:23:55,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:23:55,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:23:55,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:23:55,279 INFO L87 Difference]: Start difference. First operand 661 states and 1032 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 22:23:55,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:23:55,620 INFO L93 Difference]: Finished difference Result 1907 states and 2976 transitions. [2023-11-23 22:23:55,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:23:55,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 137 [2023-11-23 22:23:55,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:23:55,632 INFO L225 Difference]: With dead ends: 1907 [2023-11-23 22:23:55,632 INFO L226 Difference]: Without dead ends: 1286 [2023-11-23 22:23:55,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:23:55,636 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 213 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:23:55,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 371 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:23:55,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2023-11-23 22:23:55,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 823. [2023-11-23 22:23:55,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 717 states have (on average 1.5258019525801954) internal successors, (1094), 720 states have internal predecessors, (1094), 98 states have call successors, (98), 7 states have call predecessors, (98), 7 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2023-11-23 22:23:55,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1290 transitions. [2023-11-23 22:23:55,713 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1290 transitions. Word has length 137 [2023-11-23 22:23:55,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:23:55,714 INFO L495 AbstractCegarLoop]: Abstraction has 823 states and 1290 transitions. [2023-11-23 22:23:55,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 22:23:55,714 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1290 transitions. [2023-11-23 22:23:55,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-23 22:23:55,716 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:55,717 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:55,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 22:23:55,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:23:55,931 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:55,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:55,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1166601346, now seen corresponding path program 1 times [2023-11-23 22:23:55,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:23:55,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028867358] [2023-11-23 22:23:55,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:55,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:23:55,967 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:23:55,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [475425663] [2023-11-23 22:23:55,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:55,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:23:55,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:23:55,973 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:23:55,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 22:23:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:56,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 22:23:56,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:23:56,582 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-23 22:23:56,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:23:56,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:23:56,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028867358] [2023-11-23 22:23:56,583 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:23:56,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475425663] [2023-11-23 22:23:56,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475425663] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:23:56,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:23:56,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:23:56,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107072558] [2023-11-23 22:23:56,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:23:56,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:23:56,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:23:56,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:23:56,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:23:56,586 INFO L87 Difference]: Start difference. First operand 823 states and 1290 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 22:23:56,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:23:56,828 INFO L93 Difference]: Finished difference Result 1825 states and 2861 transitions. [2023-11-23 22:23:56,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:23:56,829 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 137 [2023-11-23 22:23:56,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:23:56,837 INFO L225 Difference]: With dead ends: 1825 [2023-11-23 22:23:56,837 INFO L226 Difference]: Without dead ends: 1042 [2023-11-23 22:23:56,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:23:56,841 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 129 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:23:56,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 466 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:23:56,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2023-11-23 22:23:56,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 824. [2023-11-23 22:23:56,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 718 states have (on average 1.5250696378830084) internal successors, (1095), 721 states have internal predecessors, (1095), 98 states have call successors, (98), 7 states have call predecessors, (98), 7 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2023-11-23 22:23:56,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1291 transitions. [2023-11-23 22:23:56,896 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1291 transitions. Word has length 137 [2023-11-23 22:23:56,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:23:56,897 INFO L495 AbstractCegarLoop]: Abstraction has 824 states and 1291 transitions. [2023-11-23 22:23:56,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 22:23:56,898 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1291 transitions. [2023-11-23 22:23:56,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-23 22:23:56,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:56,900 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:56,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 22:23:57,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:23:57,121 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:57,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:57,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1597625262, now seen corresponding path program 1 times [2023-11-23 22:23:57,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:23:57,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310701572] [2023-11-23 22:23:57,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:57,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:23:57,161 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:23:57,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [952320441] [2023-11-23 22:23:57,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:57,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:23:57,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:23:57,163 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:23:57,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 22:23:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:57,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:23:57,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:23:57,534 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-23 22:23:57,535 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:23:57,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:23:57,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310701572] [2023-11-23 22:23:57,535 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:23:57,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952320441] [2023-11-23 22:23:57,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952320441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:23:57,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:23:57,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:23:57,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153736074] [2023-11-23 22:23:57,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:23:57,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:23:57,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:23:57,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:23:57,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:23:57,539 INFO L87 Difference]: Start difference. First operand 824 states and 1291 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 22:23:57,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:23:57,811 INFO L93 Difference]: Finished difference Result 1891 states and 2938 transitions. [2023-11-23 22:23:57,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:23:57,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 138 [2023-11-23 22:23:57,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:23:57,820 INFO L225 Difference]: With dead ends: 1891 [2023-11-23 22:23:57,820 INFO L226 Difference]: Without dead ends: 1108 [2023-11-23 22:23:57,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:23:57,823 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 185 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:23:57,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 369 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:23:57,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2023-11-23 22:23:57,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 825. [2023-11-23 22:23:57,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 719 states have (on average 1.5257301808066759) internal successors, (1097), 722 states have internal predecessors, (1097), 98 states have call successors, (98), 7 states have call predecessors, (98), 7 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2023-11-23 22:23:57,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1293 transitions. [2023-11-23 22:23:57,888 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1293 transitions. Word has length 138 [2023-11-23 22:23:57,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:23:57,889 INFO L495 AbstractCegarLoop]: Abstraction has 825 states and 1293 transitions. [2023-11-23 22:23:57,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 22:23:57,889 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1293 transitions. [2023-11-23 22:23:57,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-23 22:23:57,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:57,891 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:57,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 22:23:58,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:23:58,111 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:58,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:58,112 INFO L85 PathProgramCache]: Analyzing trace with hash -91318480, now seen corresponding path program 1 times [2023-11-23 22:23:58,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:23:58,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466638777] [2023-11-23 22:23:58,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:58,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:23:58,139 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:23:58,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1343703782] [2023-11-23 22:23:58,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:58,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:23:58,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:23:58,141 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:23:58,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 22:23:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:58,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 22:23:58,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:23:58,575 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 19 proven. 57 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-23 22:23:58,575 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:23:58,797 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-23 22:23:58,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:23:58,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466638777] [2023-11-23 22:23:58,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:23:58,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343703782] [2023-11-23 22:23:58,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343703782] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:23:58,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:23:58,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-11-23 22:23:58,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550335107] [2023-11-23 22:23:58,799 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:23:58,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 22:23:58,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:23:58,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 22:23:58,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:23:58,801 INFO L87 Difference]: Start difference. First operand 825 states and 1293 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 1 states have call predecessors, (40), 2 states have call successors, (40) [2023-11-23 22:23:59,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:23:59,209 INFO L93 Difference]: Finished difference Result 2203 states and 3417 transitions. [2023-11-23 22:23:59,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 22:23:59,210 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 1 states have call predecessors, (40), 2 states have call successors, (40) Word has length 138 [2023-11-23 22:23:59,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:23:59,220 INFO L225 Difference]: With dead ends: 2203 [2023-11-23 22:23:59,220 INFO L226 Difference]: Without dead ends: 1420 [2023-11-23 22:23:59,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 265 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2023-11-23 22:23:59,223 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 353 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:23:59,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 187 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:23:59,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2023-11-23 22:23:59,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1042. [2023-11-23 22:23:59,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 929 states have (on average 1.518837459634015) internal successors, (1411), 932 states have internal predecessors, (1411), 98 states have call successors, (98), 14 states have call predecessors, (98), 14 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2023-11-23 22:23:59,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1607 transitions. [2023-11-23 22:23:59,296 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1607 transitions. Word has length 138 [2023-11-23 22:23:59,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:23:59,297 INFO L495 AbstractCegarLoop]: Abstraction has 1042 states and 1607 transitions. [2023-11-23 22:23:59,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 1 states have call predecessors, (40), 2 states have call successors, (40) [2023-11-23 22:23:59,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1607 transitions. [2023-11-23 22:23:59,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-23 22:23:59,300 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:59,300 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:59,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 22:23:59,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 22:23:59,521 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:59,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:59,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1683688882, now seen corresponding path program 1 times [2023-11-23 22:23:59,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:23:59,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827354866] [2023-11-23 22:23:59,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:59,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:23:59,545 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:23:59,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1411242197] [2023-11-23 22:23:59,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:59,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:23:59,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:23:59,547 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:23:59,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 22:23:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:59,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-23 22:23:59,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:24:00,787 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 480 proven. 60 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-23 22:24:00,788 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:24:01,398 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 84 proven. 27 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2023-11-23 22:24:01,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:24:01,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827354866] [2023-11-23 22:24:01,399 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:24:01,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411242197] [2023-11-23 22:24:01,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411242197] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:24:01,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:24:01,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10] total 24 [2023-11-23 22:24:01,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714595368] [2023-11-23 22:24:01,400 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:24:01,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-23 22:24:01,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:24:01,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-23 22:24:01,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2023-11-23 22:24:01,403 INFO L87 Difference]: Start difference. First operand 1042 states and 1607 transitions. Second operand has 24 states, 23 states have (on average 3.9565217391304346) internal successors, (91), 21 states have internal predecessors, (91), 7 states have call successors, (29), 5 states have call predecessors, (29), 9 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2023-11-23 22:24:03,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:24:03,675 INFO L93 Difference]: Finished difference Result 1567 states and 2372 transitions. [2023-11-23 22:24:03,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-23 22:24:03,676 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.9565217391304346) internal successors, (91), 21 states have internal predecessors, (91), 7 states have call successors, (29), 5 states have call predecessors, (29), 9 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) Word has length 138 [2023-11-23 22:24:03,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:24:03,682 INFO L225 Difference]: With dead ends: 1567 [2023-11-23 22:24:03,682 INFO L226 Difference]: Without dead ends: 931 [2023-11-23 22:24:03,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1202 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1124, Invalid=3298, Unknown=0, NotChecked=0, Total=4422 [2023-11-23 22:24:03,686 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 318 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 22:24:03,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 489 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 22:24:03,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2023-11-23 22:24:03,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 799. [2023-11-23 22:24:03,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 701 states have (on average 1.4664764621968616) internal successors, (1028), 703 states have internal predecessors, (1028), 72 states have call successors, (72), 25 states have call predecessors, (72), 25 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2023-11-23 22:24:03,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1172 transitions. [2023-11-23 22:24:03,758 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1172 transitions. Word has length 138 [2023-11-23 22:24:03,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:24:03,758 INFO L495 AbstractCegarLoop]: Abstraction has 799 states and 1172 transitions. [2023-11-23 22:24:03,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.9565217391304346) internal successors, (91), 21 states have internal predecessors, (91), 7 states have call successors, (29), 5 states have call predecessors, (29), 9 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2023-11-23 22:24:03,759 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1172 transitions. [2023-11-23 22:24:03,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-23 22:24:03,761 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:24:03,761 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:24:03,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 22:24:03,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 22:24:03,983 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:24:03,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:24:03,983 INFO L85 PathProgramCache]: Analyzing trace with hash -164870302, now seen corresponding path program 1 times [2023-11-23 22:24:03,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:24:03,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121624212] [2023-11-23 22:24:03,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:24:03,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:24:04,016 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:24:04,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [888779235] [2023-11-23 22:24:04,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:24:04,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:24:04,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:24:04,018 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:24:04,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 22:24:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:24:04,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 22:24:04,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:24:04,585 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 417 proven. 78 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2023-11-23 22:24:04,585 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:24:05,185 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 30 proven. 81 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2023-11-23 22:24:05,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:24:05,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121624212] [2023-11-23 22:24:05,186 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:24:05,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888779235] [2023-11-23 22:24:05,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888779235] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:24:05,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:24:05,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-23 22:24:05,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475218877] [2023-11-23 22:24:05,187 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:24:05,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 22:24:05,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:24:05,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 22:24:05,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-11-23 22:24:05,190 INFO L87 Difference]: Start difference. First operand 799 states and 1172 transitions. Second operand has 16 states, 16 states have (on average 5.6875) internal successors, (91), 16 states have internal predecessors, (91), 5 states have call successors, (38), 3 states have call predecessors, (38), 7 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) [2023-11-23 22:24:05,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:24:05,810 INFO L93 Difference]: Finished difference Result 1833 states and 2695 transitions. [2023-11-23 22:24:05,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-23 22:24:05,811 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.6875) internal successors, (91), 16 states have internal predecessors, (91), 5 states have call successors, (38), 3 states have call predecessors, (38), 7 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) Word has length 139 [2023-11-23 22:24:05,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:24:05,819 INFO L225 Difference]: With dead ends: 1833 [2023-11-23 22:24:05,819 INFO L226 Difference]: Without dead ends: 1157 [2023-11-23 22:24:05,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2023-11-23 22:24:05,822 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 177 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:24:05,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 239 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 22:24:05,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2023-11-23 22:24:05,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 813. [2023-11-23 22:24:05,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 707 states have (on average 1.391796322489392) internal successors, (984), 709 states have internal predecessors, (984), 72 states have call successors, (72), 33 states have call predecessors, (72), 33 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2023-11-23 22:24:05,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1128 transitions. [2023-11-23 22:24:05,924 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1128 transitions. Word has length 139 [2023-11-23 22:24:05,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:24:05,925 INFO L495 AbstractCegarLoop]: Abstraction has 813 states and 1128 transitions. [2023-11-23 22:24:05,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.6875) internal successors, (91), 16 states have internal predecessors, (91), 5 states have call successors, (38), 3 states have call predecessors, (38), 7 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) [2023-11-23 22:24:05,925 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1128 transitions. [2023-11-23 22:24:05,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-23 22:24:05,928 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:24:05,928 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:24:05,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 22:24:06,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 22:24:06,149 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:24:06,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:24:06,149 INFO L85 PathProgramCache]: Analyzing trace with hash -725993672, now seen corresponding path program 1 times [2023-11-23 22:24:06,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:24:06,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125912969] [2023-11-23 22:24:06,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:24:06,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:24:06,182 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:24:06,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [928773886] [2023-11-23 22:24:06,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:24:06,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:24:06,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:24:06,184 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:24:06,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 22:24:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:24:06,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 22:24:06,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:24:06,990 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 438 proven. 57 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2023-11-23 22:24:06,990 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:24:09,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:24:09,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125912969] [2023-11-23 22:24:09,767 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:24:09,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928773886] [2023-11-23 22:24:09,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928773886] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:24:09,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:24:09,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-23 22:24:09,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546709870] [2023-11-23 22:24:09,768 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 22:24:09,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:24:09,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:24:09,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:24:09,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=59, Unknown=1, NotChecked=0, Total=90 [2023-11-23 22:24:09,770 INFO L87 Difference]: Start difference. First operand 813 states and 1128 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-23 22:24:11,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:24:11,493 INFO L93 Difference]: Finished difference Result 1533 states and 2118 transitions. [2023-11-23 22:24:11,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 22:24:11,494 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 140 [2023-11-23 22:24:11,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:24:11,499 INFO L225 Difference]: With dead ends: 1533 [2023-11-23 22:24:11,499 INFO L226 Difference]: Without dead ends: 847 [2023-11-23 22:24:11,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=74, Invalid=135, Unknown=1, NotChecked=0, Total=210 [2023-11-23 22:24:11,502 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 57 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:24:11,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 148 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 22:24:11,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2023-11-23 22:24:11,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 837. [2023-11-23 22:24:11,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 725 states have (on average 1.3462068965517242) internal successors, (976), 727 states have internal predecessors, (976), 72 states have call successors, (72), 39 states have call predecessors, (72), 39 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2023-11-23 22:24:11,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1120 transitions. [2023-11-23 22:24:11,581 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1120 transitions. Word has length 140 [2023-11-23 22:24:11,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:24:11,582 INFO L495 AbstractCegarLoop]: Abstraction has 837 states and 1120 transitions. [2023-11-23 22:24:11,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-23 22:24:11,582 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1120 transitions. [2023-11-23 22:24:11,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-23 22:24:11,585 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:24:11,585 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:24:11,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 22:24:11,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 22:24:11,803 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:24:11,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:24:11,804 INFO L85 PathProgramCache]: Analyzing trace with hash 2041854989, now seen corresponding path program 1 times [2023-11-23 22:24:11,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:24:11,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455980510] [2023-11-23 22:24:11,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:24:11,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:24:11,826 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:24:11,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1125646036] [2023-11-23 22:24:11,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:24:11,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:24:11,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:24:11,828 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:24:11,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 22:24:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:24:12,237 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:24:12,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:24:12,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:24:12,415 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 22:24:12,417 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 22:24:12,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 22:24:12,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 22:24:12,634 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:24:12,637 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:24:12,763 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-23 22:24:12,772 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-23 22:24:12,772 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-11-23 22:24:12,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:24:12 BoogieIcfgContainer [2023-11-23 22:24:12,814 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:24:12,814 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:24:12,814 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:24:12,815 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:24:12,815 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:23:47" (3/4) ... [2023-11-23 22:24:12,818 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 22:24:12,819 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:24:12,820 INFO L158 Benchmark]: Toolchain (without parser) took 26470.60ms. Allocated memory was 161.5MB in the beginning and 283.1MB in the end (delta: 121.6MB). Free memory was 124.8MB in the beginning and 144.6MB in the end (delta: -19.8MB). Peak memory consumption was 102.3MB. Max. memory is 16.1GB. [2023-11-23 22:24:12,820 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:24:12,821 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.78ms. Allocated memory is still 161.5MB. Free memory was 124.8MB in the beginning and 109.3MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 22:24:12,821 INFO L158 Benchmark]: Boogie Procedure Inliner took 114.44ms. Allocated memory is still 161.5MB. Free memory was 109.3MB in the beginning and 104.6MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 22:24:12,822 INFO L158 Benchmark]: Boogie Preprocessor took 83.31ms. Allocated memory is still 161.5MB. Free memory was 104.6MB in the beginning and 98.0MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 22:24:12,823 INFO L158 Benchmark]: RCFGBuilder took 910.01ms. Allocated memory is still 161.5MB. Free memory was 98.0MB in the beginning and 123.3MB in the end (delta: -25.3MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2023-11-23 22:24:12,824 INFO L158 Benchmark]: TraceAbstraction took 24920.93ms. Allocated memory was 161.5MB in the beginning and 283.1MB in the end (delta: 121.6MB). Free memory was 122.7MB in the beginning and 145.6MB in the end (delta: -22.9MB). Peak memory consumption was 99.8MB. Max. memory is 16.1GB. [2023-11-23 22:24:12,824 INFO L158 Benchmark]: Witness Printer took 4.89ms. Allocated memory is still 283.1MB. Free memory was 145.6MB in the beginning and 144.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:24:12,827 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 428.78ms. Allocated memory is still 161.5MB. Free memory was 124.8MB in the beginning and 109.3MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 114.44ms. Allocated memory is still 161.5MB. Free memory was 109.3MB in the beginning and 104.6MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.31ms. Allocated memory is still 161.5MB. Free memory was 104.6MB in the beginning and 98.0MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 910.01ms. Allocated memory is still 161.5MB. Free memory was 98.0MB in the beginning and 123.3MB in the end (delta: -25.3MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. * TraceAbstraction took 24920.93ms. Allocated memory was 161.5MB in the beginning and 283.1MB in the end (delta: 121.6MB). Free memory was 122.7MB in the beginning and 145.6MB in the end (delta: -22.9MB). Peak memory consumption was 99.8MB. Max. memory is 16.1GB. * Witness Printer took 4.89ms. Allocated memory is still 283.1MB. Free memory was 145.6MB in the beginning and 144.6MB in the end (delta: 1.0MB). 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~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 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 165, overapproximation of someUnaryDOUBLEoperation at line 121. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 32; [L23] signed char var_1_4 = 16; [L24] unsigned char var_1_5 = 1; [L25] unsigned char var_1_6 = 1; [L26] unsigned char var_1_8 = 1; [L27] unsigned char var_1_9 = 0; [L28] unsigned char var_1_10 = 128; [L29] unsigned char var_1_11 = 64; [L30] signed char var_1_12 = -10; [L31] signed char var_1_13 = -10; [L32] signed char var_1_14 = -25; [L33] double var_1_15 = 64.875; [L34] double var_1_17 = 1.625; [L35] double var_1_18 = 32.2; [L36] double var_1_19 = 8.6; [L37] double var_1_20 = 10.5; [L38] signed short int var_1_21 = -64; [L39] unsigned char var_1_22 = 25; [L40] unsigned char var_1_23 = 0; [L41] unsigned long int var_1_24 = 5; [L42] double var_1_25 = 0.75; [L43] unsigned char var_1_27 = 4; [L44] signed short int var_1_35 = -64; [L45] signed char var_1_36 = -10; [L46] signed long int var_1_39 = 256; [L47] double var_1_40 = 31.6; [L48] signed short int var_1_42 = 5; [L49] signed short int last_1_var_1_21 = -64; [L50] unsigned char last_1_var_1_22 = 25; [L169] isInitial = 1 [L170] FCALL initially() [L171] COND TRUE 1 [L172] CALL updateLastVariables() [L161] last_1_var_1_21 = var_1_21 [L162] last_1_var_1_22 = var_1_22 [L172] RET updateLastVariables() [L173] CALL updateVariables() [L127] var_1_4 = __VERIFIER_nondet_char() [L128] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L128] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L129] CALL assume_abort_if_not(var_1_4 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L129] RET assume_abort_if_not(var_1_4 <= 32) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L130] var_1_5 = __VERIFIER_nondet_uchar() [L131] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_6=1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_6=1, var_1_8=1, var_1_9=0] [L131] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_6=1, var_1_8=1, var_1_9=0] [L132] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L132] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L133] var_1_6 = __VERIFIER_nondet_uchar() [L134] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_8=1, var_1_9=0] [L134] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_8=1, var_1_9=0] [L135] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L135] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L136] var_1_9 = __VERIFIER_nondet_uchar() [L137] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1] [L137] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1] [L138] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L138] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L139] var_1_10 = __VERIFIER_nondet_uchar() [L140] CALL assume_abort_if_not(var_1_10 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L140] RET assume_abort_if_not(var_1_10 >= 127) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L141] CALL assume_abort_if_not(var_1_10 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L141] RET assume_abort_if_not(var_1_10 <= 254) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L142] var_1_11 = __VERIFIER_nondet_uchar() [L143] CALL assume_abort_if_not(var_1_11 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L143] RET assume_abort_if_not(var_1_11 >= 63) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L144] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L144] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L145] var_1_13 = __VERIFIER_nondet_char() [L146] CALL assume_abort_if_not(var_1_13 >= -31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L146] RET assume_abort_if_not(var_1_13 >= -31) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L147] CALL assume_abort_if_not(var_1_13 <= 31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L147] RET assume_abort_if_not(var_1_13 <= 31) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L148] var_1_14 = __VERIFIER_nondet_char() [L149] CALL assume_abort_if_not(var_1_14 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L149] RET assume_abort_if_not(var_1_14 >= -63) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L150] CALL assume_abort_if_not(var_1_14 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L150] RET assume_abort_if_not(var_1_14 <= 63) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L151] var_1_17 = __VERIFIER_nondet_double() [L152] CALL assume_abort_if_not((var_1_17 >= 0.0F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 4611686.018427382800e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L152] RET assume_abort_if_not((var_1_17 >= 0.0F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 4611686.018427382800e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L153] var_1_18 = __VERIFIER_nondet_double() [L154] CALL assume_abort_if_not((var_1_18 >= 0.0F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 4611686.018427382800e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L154] RET assume_abort_if_not((var_1_18 >= 0.0F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 4611686.018427382800e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L155] var_1_19 = __VERIFIER_nondet_double() [L156] CALL assume_abort_if_not((var_1_19 >= -230584.3009213691390e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 2305843.009213691390e+12F && var_1_19 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L156] RET assume_abort_if_not((var_1_19 >= -230584.3009213691390e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 2305843.009213691390e+12F && var_1_19 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L157] var_1_20 = __VERIFIER_nondet_double() [L158] CALL assume_abort_if_not((var_1_20 >= -230584.3009213691390e+13F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 2305843.009213691390e+12F && var_1_20 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=32, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=32, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L158] RET assume_abort_if_not((var_1_20 >= -230584.3009213691390e+13F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 2305843.009213691390e+12F && var_1_20 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=32, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L173] RET updateVariables() [L174] CALL step() [L54] signed long int stepLocal_1 = ~ last_1_var_1_21; [L55] unsigned char stepLocal_0 = var_1_5; VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=32, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L56] EXPR last_1_var_1_22 >> var_1_4 VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=32, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L56] COND TRUE stepLocal_1 != (last_1_var_1_22 >> var_1_4) [L57] COND TRUE stepLocal_0 || var_1_6 [L58] var_1_1 = var_1_4 VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=0, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L65] COND FALSE !(\read(var_1_9)) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=0, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L68] unsigned short int stepLocal_3 = var_1_1; VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_3=0, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=0, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L69] COND FALSE !(var_1_4 > stepLocal_3) [L72] var_1_15 = var_1_17 VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_3=0, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_1=0, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L74] COND TRUE ((- var_1_11) < 8) || var_1_9 [L75] var_1_22 = (var_1_4 + ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11)))) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_3=0, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_1=0, var_1_21=-64, var_1_22=63, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L77] var_1_23 = (var_1_11 + var_1_4) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_3=0, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_1=0, var_1_21=-64, var_1_22=63, var_1_23=63, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L78] COND TRUE var_1_18 <= var_1_20 [L79] var_1_24 = ((((var_1_8) < ((var_1_8 + var_1_11))) ? (var_1_8) : ((var_1_8 + var_1_11)))) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_3=0, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_1=0, var_1_21=-64, var_1_22=63, var_1_23=63, var_1_24=1, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L85] COND FALSE !(var_1_6 || var_1_9) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_3=0, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_1=0, var_1_21=-64, var_1_22=63, var_1_23=63, var_1_24=1, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L90] signed short int stepLocal_2 = var_1_21; VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_2=-64, stepLocal_3=0, var_1_10=127, var_1_11=63, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_1=0, var_1_21=-64, var_1_22=63, var_1_23=63, var_1_24=1, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L91] COND TRUE var_1_10 > stepLocal_2 [L92] var_1_12 = ((var_1_4 + var_1_13) + var_1_14) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_2=-64, stepLocal_3=0, var_1_10=127, var_1_11=63, var_1_12=0, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_1=0, var_1_21=-64, var_1_22=63, var_1_23=63, var_1_24=1, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L94] var_1_25 = var_1_19 VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_2=-64, stepLocal_3=0, var_1_10=127, var_1_11=63, var_1_12=0, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_19=3, var_1_1=0, var_1_21=-64, var_1_22=63, var_1_23=63, var_1_24=1, var_1_25=3, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L95] COND FALSE !((var_1_20 >= var_1_18) && (var_1_11 >= var_1_22)) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_2=-64, stepLocal_3=0, var_1_10=127, var_1_11=63, var_1_12=0, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_19=3, var_1_1=0, var_1_21=-64, var_1_22=63, var_1_23=63, var_1_24=1, var_1_25=3, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L102] COND FALSE !(var_1_20 > var_1_18) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_2=-64, stepLocal_3=0, var_1_10=127, var_1_11=63, var_1_12=0, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_19=3, var_1_1=0, var_1_21=-64, var_1_22=63, var_1_23=63, var_1_24=1, var_1_25=3, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L107] COND TRUE var_1_11 >= (var_1_11 % ((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10)))) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_2=-64, stepLocal_3=0, var_1_10=127, var_1_11=63, var_1_12=0, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_19=3, var_1_1=0, var_1_21=-64, var_1_22=63, var_1_23=63, var_1_24=1, var_1_25=3, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L108] COND FALSE !(var_1_11 < var_1_4) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_2=-64, stepLocal_3=0, var_1_10=127, var_1_11=63, var_1_12=0, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_19=3, var_1_1=0, var_1_21=-64, var_1_22=63, var_1_23=63, var_1_24=1, var_1_25=3, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L114] COND FALSE !(var_1_1 > var_1_4) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_2=-64, stepLocal_3=0, var_1_10=127, var_1_11=63, var_1_12=0, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_19=3, var_1_1=0, var_1_21=-64, var_1_22=63, var_1_23=63, var_1_24=1, var_1_25=3, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L117] COND FALSE !(var_1_21 < ((((var_1_4) < (-64)) ? (var_1_4) : (-64)))) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_2=-64, stepLocal_3=0, var_1_10=127, var_1_11=63, var_1_12=0, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_19=3, var_1_1=0, var_1_21=-64, var_1_22=63, var_1_23=63, var_1_24=1, var_1_25=3, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L120] EXPR var_1_11 | var_1_4 VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_2=-64, stepLocal_3=0, var_1_10=127, var_1_11=63, var_1_12=0, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_19=3, var_1_1=0, var_1_21=-64, var_1_22=63, var_1_23=63, var_1_24=1, var_1_25=3, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L120] COND TRUE (var_1_11 | var_1_4) < (8 + var_1_11) [L121] var_1_40 = (((((((((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18)))) > (var_1_19)) ? (((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18)))) : (var_1_19))) < 0 ) ? -((((((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18)))) > (var_1_19)) ? (((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18)))) : (var_1_19))) : ((((((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18)))) > (var_1_19)) ? (((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18)))) : (var_1_19))))) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_2=-64, stepLocal_3=0, var_1_10=127, var_1_11=63, var_1_12=0, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_18=0, var_1_19=3, var_1_1=0, var_1_21=-64, var_1_22=63, var_1_23=63, var_1_24=1, var_1_25=3, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=4, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L124] var_1_42 = var_1_22 [L174] RET step() [L175] CALL, EXPR property() [L165] EXPR last_1_var_1_22 >> var_1_4 VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=0, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_18=0, var_1_19=3, var_1_1=0, var_1_21=-64, var_1_22=63, var_1_23=63, var_1_24=1, var_1_25=3, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=4, var_1_42=63, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L165-L166] return (((((((((~ last_1_var_1_21) != (last_1_var_1_22 >> var_1_4)) ? ((var_1_5 || var_1_6) ? (var_1_1 == ((unsigned short int) var_1_4)) : (var_1_1 == ((unsigned short int) last_1_var_1_22))) : (var_1_1 == ((unsigned short int) 100))) && (var_1_9 ? (var_1_8 == ((unsigned char) (var_1_10 - (var_1_11 - var_1_4)))) : 1)) && ((var_1_10 > var_1_21) ? (var_1_12 == ((signed char) ((var_1_4 + var_1_13) + var_1_14))) : 1)) && ((var_1_4 > var_1_1) ? (var_1_15 == ((double) ((var_1_17 - var_1_18) + (((((var_1_19) > (499.25)) ? (var_1_19) : (499.25))) + var_1_20)))) : (var_1_15 == ((double) var_1_17)))) && ((var_1_6 || var_1_9) ? (((var_1_24 % var_1_10) > var_1_22) ? (var_1_21 == ((signed short int) (((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))) + var_1_14))) : 1) : 1)) && ((((- var_1_11) < 8) || var_1_9) ? (var_1_22 == ((unsigned char) (var_1_4 + ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11)))))) : 1)) && (var_1_23 == ((unsigned char) (var_1_11 + var_1_4)))) && ((var_1_18 <= var_1_20) ? (var_1_24 == ((unsigned long int) ((((var_1_8) < ((var_1_8 + var_1_11))) ? (var_1_8) : ((var_1_8 + var_1_11)))))) : ((9.99999999999998E13 < var_1_20) ? (var_1_24 == ((unsigned long int) var_1_1)) : 1)) ; [L175] RET, EXPR property() [L175] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=0, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_18=0, var_1_19=3, var_1_1=0, var_1_21=-64, var_1_22=63, var_1_23=63, var_1_24=1, var_1_25=3, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=4, var_1_42=63, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=63, var_1_12=0, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_18=0, var_1_19=3, var_1_1=0, var_1_21=-64, var_1_22=63, var_1_23=63, var_1_24=1, var_1_25=3, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=4, var_1_42=63, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24.7s, OverallIterations: 14, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2387 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2377 mSDsluCounter, 4209 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2911 mSDsCounter, 411 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2633 IncrementalHoareTripleChecker+Invalid, 3044 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 411 mSolverCounterUnsat, 1298 mSDtfsCounter, 2633 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2349 GetRequests, 2187 SyntacticMatches, 2 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1375 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1042occurred in iteration=10, InterpolantAutomatonStates: 137, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 13 MinimizatonAttempts, 2094 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 2062 NumberOfCodeBlocks, 2062 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2184 ConstructedInterpolants, 0 QuantifiedInterpolants, 10659 SizeOfPredicates, 44 NumberOfNonLiveVariables, 4457 ConjunctsInSsa, 117 ConjunctsInUnsatCore, 16 InterpolantComputations, 9 PerfectInterpolantSequences, 11743/12160 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 [2023-11-23 22:24:13,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-13.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ --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 8d4109ae03a3c02a4964ae7b090d66bce817f303884ee31660fd67b3b1f99877 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:24:15,456 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:24:15,541 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-23 22:24:15,547 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:24:15,548 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:24:15,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:24:15,577 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:24:15,578 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:24:15,579 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:24:15,579 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:24:15,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:24:15,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:24:15,581 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:24:15,582 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:24:15,583 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:24:15,583 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:24:15,584 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:24:15,584 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:24:15,585 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:24:15,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:24:15,586 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:24:15,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:24:15,587 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:24:15,587 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 22:24:15,588 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 22:24:15,588 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 22:24:15,589 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:24:15,589 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:24:15,589 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:24:15,590 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:24:15,590 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:24:15,591 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:24:15,591 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:24:15,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:24:15,592 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:24:15,592 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:24:15,592 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:24:15,593 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-23 22:24:15,593 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 22:24:15,593 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:24:15,593 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:24:15,594 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:24:15,594 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:24:15,594 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:24:15,594 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-23 22:24:15,595 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_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d4109ae03a3c02a4964ae7b090d66bce817f303884ee31660fd67b3b1f99877 [2023-11-23 22:24:15,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:24:15,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:24:15,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:24:15,983 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:24:15,983 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:24:15,986 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-13.i [2023-11-23 22:24:19,223 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:24:19,562 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:24:19,563 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-13.i [2023-11-23 22:24:19,575 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/data/60c9adc93/f4036a136c0d4a52a8cffe7dcd3cca62/FLAG965638384 [2023-11-23 22:24:19,591 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/data/60c9adc93/f4036a136c0d4a52a8cffe7dcd3cca62 [2023-11-23 22:24:19,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:24:19,595 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:24:19,597 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:24:19,597 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:24:19,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:24:19,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:24:19" (1/1) ... [2023-11-23 22:24:19,605 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e45b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:24:19, skipping insertion in model container [2023-11-23 22:24:19,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:24:19" (1/1) ... [2023-11-23 22:24:19,655 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:24:19,816 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_838c34d7-c7f8-477d-af9d-b2236af41d8c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-13.i[919,932] [2023-11-23 22:24:19,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:24:19,922 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:24:19,939 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_838c34d7-c7f8-477d-af9d-b2236af41d8c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-13.i[919,932] [2023-11-23 22:24:20,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:24:20,054 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:24:20,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:24:20 WrapperNode [2023-11-23 22:24:20,060 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:24:20,061 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:24:20,062 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:24:20,062 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:24:20,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:24:20" (1/1) ... [2023-11-23 22:24:20,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:24:20" (1/1) ... [2023-11-23 22:24:20,145 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 166 [2023-11-23 22:24:20,145 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:24:20,146 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:24:20,146 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:24:20,147 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:24:20,164 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:24:20" (1/1) ... [2023-11-23 22:24:20,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:24:20" (1/1) ... [2023-11-23 22:24:20,173 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:24:20" (1/1) ... [2023-11-23 22:24:20,200 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 22:24:20,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:24:20" (1/1) ... [2023-11-23 22:24:20,211 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:24:20" (1/1) ... [2023-11-23 22:24:20,224 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:24:20" (1/1) ... [2023-11-23 22:24:20,243 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:24:20" (1/1) ... [2023-11-23 22:24:20,261 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:24:20" (1/1) ... [2023-11-23 22:24:20,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:24:20" (1/1) ... [2023-11-23 22:24:20,269 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:24:20,270 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:24:20,270 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:24:20,270 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:24:20,271 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:24:20" (1/1) ... [2023-11-23 22:24:20,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:24:20,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:24:20,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:24:20,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:24:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:24:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-23 22:24:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 22:24:20,353 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 22:24:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:24:20,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:24:20,451 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:24:20,454 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:24:25,447 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:24:25,534 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:24:25,534 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 22:24:25,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:24:25 BoogieIcfgContainer [2023-11-23 22:24:25,535 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:24:25,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:24:25,540 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:24:25,543 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:24:25,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:24:19" (1/3) ... [2023-11-23 22:24:25,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2706dbc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:24:25, skipping insertion in model container [2023-11-23 22:24:25,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:24:20" (2/3) ... [2023-11-23 22:24:25,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2706dbc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:24:25, skipping insertion in model container [2023-11-23 22:24:25,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:24:25" (3/3) ... [2023-11-23 22:24:25,547 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-13.i [2023-11-23 22:24:25,563 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:24:25,563 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:24:25,614 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:24:25,621 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;@30b1990e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:24:25,621 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:24:25,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 47 states have internal predecessors, (71), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 22:24:25,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-23 22:24:25,644 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:24:25,645 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:24:25,646 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:24:25,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:24:25,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1194168494, now seen corresponding path program 1 times [2023-11-23 22:24:25,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:24:25,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113977323] [2023-11-23 22:24:25,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:24:25,671 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:24:25,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:24:25,674 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 22:24:25,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:24:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:24:26,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 22:24:26,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:24:26,247 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2023-11-23 22:24:26,247 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:24:26,248 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:24:26,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113977323] [2023-11-23 22:24:26,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113977323] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:24:26,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:24:26,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:24:26,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91975773] [2023-11-23 22:24:26,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:24:26,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:24:26,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:24:26,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:24:26,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:24:26,293 INFO L87 Difference]: Start difference. First operand has 69 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 47 states have internal predecessors, (71), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 22:24:28,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 22:24:28,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:24:28,425 INFO L93 Difference]: Finished difference Result 135 states and 240 transitions. [2023-11-23 22:24:28,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:24:28,451 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 133 [2023-11-23 22:24:28,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:24:28,470 INFO L225 Difference]: With dead ends: 135 [2023-11-23 22:24:28,470 INFO L226 Difference]: Without dead ends: 67 [2023-11-23 22:24:28,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:24:28,478 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:24:28,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2023-11-23 22:24:28,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-23 22:24:28,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-11-23 22:24:28,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 45 states have (on average 1.4) internal successors, (63), 45 states have internal predecessors, (63), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 22:24:28,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 103 transitions. [2023-11-23 22:24:28,552 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 103 transitions. Word has length 133 [2023-11-23 22:24:28,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:24:28,553 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 103 transitions. [2023-11-23 22:24:28,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 22:24:28,554 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 103 transitions. [2023-11-23 22:24:28,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-23 22:24:28,558 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:24:28,559 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:24:28,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:24:28,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:24:28,760 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:24:28,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:24:28,761 INFO L85 PathProgramCache]: Analyzing trace with hash 128163341, now seen corresponding path program 1 times [2023-11-23 22:24:28,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:24:28,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117622311] [2023-11-23 22:24:28,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:24:28,763 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 [2023-11-23 22:24:28,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:24:28,764 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 22:24:28,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838c34d7-c7f8-477d-af9d-b2236af41d8c/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:24:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:24:29,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:24:29,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:24:31,282 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-23 22:24:31,282 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:24:31,282 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:24:31,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117622311] [2023-11-23 22:24:31,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2117622311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:24:31,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:24:31,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:24:31,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445605069] [2023-11-23 22:24:31,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:24:31,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:24:31,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:24:31,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:24:31,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:24:31,290 INFO L87 Difference]: Start difference. First operand 67 states and 103 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 22:24:34,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []