./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC --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 e3471f06dc12ad44598fd2961f3d0cb274ed30b5886ce0a764ca9d78e786b896 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:59:52,586 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:59:52,683 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 22:59:52,690 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:59:52,691 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:59:52,726 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:59:52,726 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:59:52,727 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:59:52,727 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:59:52,727 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:59:52,727 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:59:52,727 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:59:52,728 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:59:52,728 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:59:52,728 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:59:52,728 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:59:52,728 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:59:52,728 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:59:52,729 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:59:52,729 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:59:52,729 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:59:52,729 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:59:52,729 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:59:52,729 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:59:52,729 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:59:52,730 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:59:52,730 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:59:52,730 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:59:52,730 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:59:52,730 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:59:52,730 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:59:52,730 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:59:52,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:59:52,731 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:59:52,731 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:59:52,731 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:59:52,731 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:59:52,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:59:52,731 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:59:52,731 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:59:52,731 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:59:52,731 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:59:52,732 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:59:52,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:59:52,732 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:59:52,732 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:59:52,732 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:59:52,732 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:59:52,732 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC 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 -> e3471f06dc12ad44598fd2961f3d0cb274ed30b5886ce0a764ca9d78e786b896 [2024-11-23 22:59:53,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:59:53,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:59:53,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:59:53,101 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:59:53,101 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:59:53,102 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i [2024-11-23 22:59:56,497 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/data/6da1208b2/ad84d54e49b1483ea13a65c6f9fafeaf/FLAGb26f98ff4 [2024-11-23 22:59:56,979 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:59:56,981 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i [2024-11-23 22:59:57,002 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/data/6da1208b2/ad84d54e49b1483ea13a65c6f9fafeaf/FLAGb26f98ff4 [2024-11-23 22:59:57,031 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/data/6da1208b2/ad84d54e49b1483ea13a65c6f9fafeaf [2024-11-23 22:59:57,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:59:57,037 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:59:57,041 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:59:57,042 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:59:57,049 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:59:57,052 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:59:57" (1/1) ... [2024-11-23 22:59:57,053 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c03fdc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:57, skipping insertion in model container [2024-11-23 22:59:57,054 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:59:57" (1/1) ... [2024-11-23 22:59:57,104 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:59:57,318 WARN L250 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_39a28466-1588-41a4-a9ee-b1070652cc53/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i[916,929] [2024-11-23 22:59:57,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:59:57,535 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:59:57,554 WARN L250 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_39a28466-1588-41a4-a9ee-b1070652cc53/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i[916,929] [2024-11-23 22:59:57,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:59:57,687 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:59:57,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:57 WrapperNode [2024-11-23 22:59:57,689 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:59:57,690 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:59:57,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:59:57,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:59:57,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:57" (1/1) ... [2024-11-23 22:59:57,724 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:57" (1/1) ... [2024-11-23 22:59:57,830 INFO L138 Inliner]: procedures = 26, calls = 76, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 512 [2024-11-23 22:59:57,830 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:59:57,832 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:59:57,832 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:59:57,832 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:59:57,844 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:57" (1/1) ... [2024-11-23 22:59:57,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:57" (1/1) ... [2024-11-23 22:59:57,850 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:57" (1/1) ... [2024-11-23 22:59:57,872 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 22:59:57,872 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:57" (1/1) ... [2024-11-23 22:59:57,872 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:57" (1/1) ... [2024-11-23 22:59:57,888 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:57" (1/1) ... [2024-11-23 22:59:57,890 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:57" (1/1) ... [2024-11-23 22:59:57,900 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:57" (1/1) ... [2024-11-23 22:59:57,908 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:57" (1/1) ... [2024-11-23 22:59:57,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:57" (1/1) ... [2024-11-23 22:59:57,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:59:57,929 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:59:57,929 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:59:57,929 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:59:57,932 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:57" (1/1) ... [2024-11-23 22:59:57,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:59:57,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:59:57,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:59:57,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:59:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:59:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 22:59:58,017 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 22:59:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 22:59:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:59:58,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:59:58,205 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:59:58,207 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:59:59,634 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-23 22:59:59,636 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:59:59,663 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:59:59,666 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:59:59,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:59:59 BoogieIcfgContainer [2024-11-23 22:59:59,667 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:59:59,670 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:59:59,670 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:59:59,676 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:59:59,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:59:57" (1/3) ... [2024-11-23 22:59:59,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b42cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:59:59, skipping insertion in model container [2024-11-23 22:59:59,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:59:57" (2/3) ... [2024-11-23 22:59:59,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b42cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:59:59, skipping insertion in model container [2024-11-23 22:59:59,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:59:59" (3/3) ... [2024-11-23 22:59:59,680 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-95.i [2024-11-23 22:59:59,699 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:59:59,702 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-95.i that has 2 procedures, 218 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 22:59:59,800 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:59:59,819 INFO L333 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, 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;@988121c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:59:59,820 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:59:59,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 218 states, 152 states have (on average 1.5526315789473684) internal successors, (236), 153 states have internal predecessors, (236), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-23 22:59:59,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-11-23 22:59:59,861 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:59,862 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:59:59,865 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:59,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:59,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1225199051, now seen corresponding path program 1 times [2024-11-23 22:59:59,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:59,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058976368] [2024-11-23 22:59:59,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:59,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:00,778 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 7688 trivial. 0 not checked. [2024-11-23 23:00:00,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:00,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058976368] [2024-11-23 23:00:00,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058976368] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:00:00,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512538449] [2024-11-23 23:00:00,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:00,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:00:00,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:00:00,790 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:00:00,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:00:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:01,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:00:01,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:00:01,496 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 7688 trivial. 0 not checked. [2024-11-23 23:00:01,496 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:00:01,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512538449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:01,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:00:01,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 23:00:01,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052555727] [2024-11-23 23:00:01,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:01,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:00:01,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:01,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:00:01,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:00:01,589 INFO L87 Difference]: Start difference. First operand has 218 states, 152 states have (on average 1.5526315789473684) internal successors, (236), 153 states have internal predecessors, (236), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 2 states have call successors, (63) [2024-11-23 23:00:01,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:01,660 INFO L93 Difference]: Finished difference Result 428 states and 779 transitions. [2024-11-23 23:00:01,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:00:01,663 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 2 states have call successors, (63) Word has length 408 [2024-11-23 23:00:01,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:01,677 INFO L225 Difference]: With dead ends: 428 [2024-11-23 23:00:01,677 INFO L226 Difference]: Without dead ends: 213 [2024-11-23 23:00:01,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:00:01,686 INFO L435 NwaCegarLoop]: 352 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:01,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:00:01,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-23 23:00:01,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2024-11-23 23:00:01,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 148 states have (on average 1.527027027027027) internal successors, (226), 148 states have internal predecessors, (226), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-23 23:00:01,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 352 transitions. [2024-11-23 23:00:01,793 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 352 transitions. Word has length 408 [2024-11-23 23:00:01,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:01,793 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 352 transitions. [2024-11-23 23:00:01,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 2 states have call successors, (63) [2024-11-23 23:00:01,797 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 352 transitions. [2024-11-23 23:00:01,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-11-23 23:00:01,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:01,816 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:01,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:00:02,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:00:02,021 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:02,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:02,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1394793373, now seen corresponding path program 1 times [2024-11-23 23:00:02,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:02,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448098291] [2024-11-23 23:00:02,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:02,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:02,920 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-11-23 23:00:02,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:02,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448098291] [2024-11-23 23:00:02,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448098291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:02,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:02,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:00:02,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256161300] [2024-11-23 23:00:02,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:02,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:00:02,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:02,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:00:02,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:00:02,928 INFO L87 Difference]: Start difference. First operand 213 states and 352 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-11-23 23:00:03,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:03,432 INFO L93 Difference]: Finished difference Result 775 states and 1286 transitions. [2024-11-23 23:00:03,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:00:03,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 408 [2024-11-23 23:00:03,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:03,448 INFO L225 Difference]: With dead ends: 775 [2024-11-23 23:00:03,448 INFO L226 Difference]: Without dead ends: 565 [2024-11-23 23:00:03,449 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:00:03,450 INFO L435 NwaCegarLoop]: 422 mSDtfsCounter, 668 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:03,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 1232 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:00:03,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-23 23:00:03,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 556. [2024-11-23 23:00:03,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 429 states have (on average 1.5827505827505828) internal successors, (679), 432 states have internal predecessors, (679), 122 states have call successors, (122), 4 states have call predecessors, (122), 4 states have return successors, (122), 119 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-23 23:00:03,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 923 transitions. [2024-11-23 23:00:03,573 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 923 transitions. Word has length 408 [2024-11-23 23:00:03,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:03,574 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 923 transitions. [2024-11-23 23:00:03,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-11-23 23:00:03,575 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 923 transitions. [2024-11-23 23:00:03,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-11-23 23:00:03,585 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:03,585 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:03,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:00:03,586 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:03,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:03,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1950170470, now seen corresponding path program 1 times [2024-11-23 23:00:03,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:03,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934810848] [2024-11-23 23:00:03,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:03,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:04,760 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-11-23 23:00:04,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:04,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934810848] [2024-11-23 23:00:04,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934810848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:04,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:04,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:00:04,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035626904] [2024-11-23 23:00:04,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:04,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:00:04,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:04,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:00:04,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:00:04,766 INFO L87 Difference]: Start difference. First operand 556 states and 923 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-11-23 23:00:05,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:05,016 INFO L93 Difference]: Finished difference Result 1453 states and 2404 transitions. [2024-11-23 23:00:05,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:00:05,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 409 [2024-11-23 23:00:05,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:05,035 INFO L225 Difference]: With dead ends: 1453 [2024-11-23 23:00:05,037 INFO L226 Difference]: Without dead ends: 900 [2024-11-23 23:00:05,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:00:05,041 INFO L435 NwaCegarLoop]: 432 mSDtfsCounter, 237 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:05,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 760 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:00:05,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2024-11-23 23:00:05,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 897. [2024-11-23 23:00:05,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 674 states have (on average 1.5593471810089021) internal successors, (1051), 678 states have internal predecessors, (1051), 214 states have call successors, (214), 8 states have call predecessors, (214), 8 states have return successors, (214), 210 states have call predecessors, (214), 214 states have call successors, (214) [2024-11-23 23:00:05,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1479 transitions. [2024-11-23 23:00:05,256 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1479 transitions. Word has length 409 [2024-11-23 23:00:05,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:05,258 INFO L471 AbstractCegarLoop]: Abstraction has 897 states and 1479 transitions. [2024-11-23 23:00:05,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-11-23 23:00:05,259 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1479 transitions. [2024-11-23 23:00:05,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-11-23 23:00:05,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:05,270 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:05,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:00:05,270 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:05,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:05,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1249264057, now seen corresponding path program 1 times [2024-11-23 23:00:05,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:05,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087692394] [2024-11-23 23:00:05,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:05,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:05,617 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-11-23 23:00:05,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:05,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087692394] [2024-11-23 23:00:05,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087692394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:05,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:05,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:00:05,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675428428] [2024-11-23 23:00:05,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:05,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:00:05,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:05,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:00:05,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:00:05,620 INFO L87 Difference]: Start difference. First operand 897 states and 1479 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-11-23 23:00:05,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:05,754 INFO L93 Difference]: Finished difference Result 1462 states and 2408 transitions. [2024-11-23 23:00:05,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:00:05,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 409 [2024-11-23 23:00:05,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:05,768 INFO L225 Difference]: With dead ends: 1462 [2024-11-23 23:00:05,768 INFO L226 Difference]: Without dead ends: 909 [2024-11-23 23:00:05,770 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:00:05,771 INFO L435 NwaCegarLoop]: 459 mSDtfsCounter, 201 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:05,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 795 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:00:05,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2024-11-23 23:00:05,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 736. [2024-11-23 23:00:05,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 543 states have (on average 1.5414364640883977) internal successors, (837), 545 states have internal predecessors, (837), 184 states have call successors, (184), 8 states have call predecessors, (184), 8 states have return successors, (184), 182 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-23 23:00:05,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1205 transitions. [2024-11-23 23:00:05,905 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1205 transitions. Word has length 409 [2024-11-23 23:00:05,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:05,906 INFO L471 AbstractCegarLoop]: Abstraction has 736 states and 1205 transitions. [2024-11-23 23:00:05,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-11-23 23:00:05,907 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1205 transitions. [2024-11-23 23:00:05,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-11-23 23:00:05,917 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:05,918 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:05,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:00:05,919 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:05,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:05,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1339530375, now seen corresponding path program 1 times [2024-11-23 23:00:05,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:05,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541584155] [2024-11-23 23:00:05,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:05,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:06,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:06,947 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-11-23 23:00:06,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:06,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541584155] [2024-11-23 23:00:06,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541584155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:06,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:06,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:00:06,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24033552] [2024-11-23 23:00:06,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:06,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:00:06,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:06,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:00:06,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:00:06,952 INFO L87 Difference]: Start difference. First operand 736 states and 1205 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-11-23 23:00:07,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:07,155 INFO L93 Difference]: Finished difference Result 1533 states and 2493 transitions. [2024-11-23 23:00:07,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:00:07,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 409 [2024-11-23 23:00:07,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:07,163 INFO L225 Difference]: With dead ends: 1533 [2024-11-23 23:00:07,163 INFO L226 Difference]: Without dead ends: 800 [2024-11-23 23:00:07,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:00:07,166 INFO L435 NwaCegarLoop]: 405 mSDtfsCounter, 214 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:07,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 610 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:00:07,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-11-23 23:00:07,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 799. [2024-11-23 23:00:07,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 574 states have (on average 1.5034843205574913) internal successors, (863), 577 states have internal predecessors, (863), 211 states have call successors, (211), 13 states have call predecessors, (211), 13 states have return successors, (211), 208 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-23 23:00:07,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1285 transitions. [2024-11-23 23:00:07,308 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1285 transitions. Word has length 409 [2024-11-23 23:00:07,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:07,309 INFO L471 AbstractCegarLoop]: Abstraction has 799 states and 1285 transitions. [2024-11-23 23:00:07,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-11-23 23:00:07,310 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1285 transitions. [2024-11-23 23:00:07,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-11-23 23:00:07,322 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:07,322 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:07,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:00:07,323 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:07,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:07,325 INFO L85 PathProgramCache]: Analyzing trace with hash -692890184, now seen corresponding path program 1 times [2024-11-23 23:00:07,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:07,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752830968] [2024-11-23 23:00:07,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:07,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:13,549 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-11-23 23:00:13,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:13,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752830968] [2024-11-23 23:00:13,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752830968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:13,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:13,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:00:13,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198476655] [2024-11-23 23:00:13,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:13,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:00:13,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:13,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:00:13,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:00:13,552 INFO L87 Difference]: Start difference. First operand 799 states and 1285 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-11-23 23:00:21,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:21,666 INFO L93 Difference]: Finished difference Result 1810 states and 2909 transitions. [2024-11-23 23:00:21,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 23:00:21,667 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 411 [2024-11-23 23:00:21,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:21,678 INFO L225 Difference]: With dead ends: 1810 [2024-11-23 23:00:21,678 INFO L226 Difference]: Without dead ends: 1410 [2024-11-23 23:00:21,681 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:00:21,682 INFO L435 NwaCegarLoop]: 544 mSDtfsCounter, 1500 mSDsluCounter, 2376 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 2920 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:21,682 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 2920 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2024-11-23 23:00:21,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-11-23 23:00:21,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1386. [2024-11-23 23:00:21,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1053 states have (on average 1.5308641975308641) internal successors, (1612), 1061 states have internal predecessors, (1612), 306 states have call successors, (306), 26 states have call predecessors, (306), 26 states have return successors, (306), 298 states have call predecessors, (306), 306 states have call successors, (306) [2024-11-23 23:00:21,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 2224 transitions. [2024-11-23 23:00:21,889 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 2224 transitions. Word has length 411 [2024-11-23 23:00:21,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:21,890 INFO L471 AbstractCegarLoop]: Abstraction has 1386 states and 2224 transitions. [2024-11-23 23:00:21,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-11-23 23:00:21,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 2224 transitions. [2024-11-23 23:00:21,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-11-23 23:00:21,899 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:21,899 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:21,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:00:21,899 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:21,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:21,900 INFO L85 PathProgramCache]: Analyzing trace with hash -941036678, now seen corresponding path program 1 times [2024-11-23 23:00:21,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:21,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920276355] [2024-11-23 23:00:21,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:21,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:53,916 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-11-23 23:03:53,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:53,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920276355] [2024-11-23 23:03:53,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920276355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:03:53,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:03:53,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:03:53,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221182092] [2024-11-23 23:03:53,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:03:53,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:03:53,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:53,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:03:53,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:03:53,919 INFO L87 Difference]: Start difference. First operand 1386 states and 2224 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-11-23 23:03:54,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:54,673 INFO L93 Difference]: Finished difference Result 3167 states and 4950 transitions. [2024-11-23 23:03:54,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:03:54,674 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 411 [2024-11-23 23:03:54,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:54,688 INFO L225 Difference]: With dead ends: 3167 [2024-11-23 23:03:54,688 INFO L226 Difference]: Without dead ends: 1831 [2024-11-23 23:03:54,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:03:54,694 INFO L435 NwaCegarLoop]: 367 mSDtfsCounter, 108 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:54,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1386 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:03:54,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2024-11-23 23:03:54,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1647. [2024-11-23 23:03:54,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1647 states, 1287 states have (on average 1.4832944832944832) internal successors, (1909), 1304 states have internal predecessors, (1909), 324 states have call successors, (324), 35 states have call predecessors, (324), 35 states have return successors, (324), 307 states have call predecessors, (324), 324 states have call successors, (324) [2024-11-23 23:03:54,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 2557 transitions. [2024-11-23 23:03:54,955 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 2557 transitions. Word has length 411 [2024-11-23 23:03:54,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:54,956 INFO L471 AbstractCegarLoop]: Abstraction has 1647 states and 2557 transitions. [2024-11-23 23:03:54,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-11-23 23:03:54,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 2557 transitions. [2024-11-23 23:03:54,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-11-23 23:03:54,968 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:54,968 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:03:54,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:03:54,969 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:03:54,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:54,970 INFO L85 PathProgramCache]: Analyzing trace with hash -260978308, now seen corresponding path program 1 times [2024-11-23 23:03:54,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:54,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816485589] [2024-11-23 23:03:54,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:54,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:56,999 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 84 proven. 102 refuted. 0 times theorem prover too weak. 7626 trivial. 0 not checked. [2024-11-23 23:03:57,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:57,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816485589] [2024-11-23 23:03:57,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816485589] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:03:57,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903579721] [2024-11-23 23:03:57,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:57,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:57,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:57,005 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:57,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:03:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:57,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-23 23:03:57,488 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:04:01,336 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 4337 proven. 462 refuted. 0 times theorem prover too weak. 3013 trivial. 0 not checked. [2024-11-23 23:04:01,336 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:04:03,608 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 144 proven. 225 refuted. 0 times theorem prover too weak. 7443 trivial. 0 not checked. [2024-11-23 23:04:03,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903579721] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:04:03,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:04:03,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 16, 14] total 31 [2024-11-23 23:04:03,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191349037] [2024-11-23 23:04:03,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:04:03,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-23 23:04:03,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:03,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-23 23:04:03,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=736, Unknown=0, NotChecked=0, Total=930 [2024-11-23 23:04:03,613 INFO L87 Difference]: Start difference. First operand 1647 states and 2557 transitions. Second operand has 31 states, 31 states have (on average 6.645161290322581) internal successors, (206), 30 states have internal predecessors, (206), 8 states have call successors, (147), 5 states have call predecessors, (147), 9 states have return successors, (149), 8 states have call predecessors, (149), 8 states have call successors, (149) [2024-11-23 23:04:16,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:04:20,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:04:24,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:04:28,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:04:32,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:04:36,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:04:40,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:04:44,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:04:49,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:04:53,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:05:15,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:05:19,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:05:23,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:05:27,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:05:31,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:05:35,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:05:37,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:05:37,633 INFO L93 Difference]: Finished difference Result 9491 states and 14462 transitions. [2024-11-23 23:05:37,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 208 states. [2024-11-23 23:05:37,634 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 6.645161290322581) internal successors, (206), 30 states have internal predecessors, (206), 8 states have call successors, (147), 5 states have call predecessors, (147), 9 states have return successors, (149), 8 states have call predecessors, (149), 8 states have call successors, (149) Word has length 411 [2024-11-23 23:05:37,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:05:37,690 INFO L225 Difference]: With dead ends: 9491 [2024-11-23 23:05:37,691 INFO L226 Difference]: Without dead ends: 7894 [2024-11-23 23:05:37,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1063 GetRequests, 832 SyntacticMatches, 1 SemanticMatches, 230 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22249 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=9430, Invalid=44162, Unknown=0, NotChecked=0, Total=53592 [2024-11-23 23:05:37,720 INFO L435 NwaCegarLoop]: 599 mSDtfsCounter, 14686 mSDsluCounter, 5754 mSDsCounter, 0 mSdLazyCounter, 5583 mSolverCounterSat, 4048 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14727 SdHoareTripleChecker+Valid, 6353 SdHoareTripleChecker+Invalid, 9647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4048 IncrementalHoareTripleChecker+Valid, 5583 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:05:37,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14727 Valid, 6353 Invalid, 9647 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4048 Valid, 5583 Invalid, 16 Unknown, 0 Unchecked, 77.9s Time] [2024-11-23 23:05:37,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7894 states. [2024-11-23 23:05:38,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7894 to 3128. [2024-11-23 23:05:38,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 2544 states have (on average 1.5007861635220126) internal successors, (3818), 2571 states have internal predecessors, (3818), 510 states have call successors, (510), 73 states have call predecessors, (510), 73 states have return successors, (510), 483 states have call predecessors, (510), 510 states have call successors, (510) [2024-11-23 23:05:38,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 4838 transitions. [2024-11-23 23:05:38,671 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 4838 transitions. Word has length 411 [2024-11-23 23:05:38,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:05:38,672 INFO L471 AbstractCegarLoop]: Abstraction has 3128 states and 4838 transitions. [2024-11-23 23:05:38,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 6.645161290322581) internal successors, (206), 30 states have internal predecessors, (206), 8 states have call successors, (147), 5 states have call predecessors, (147), 9 states have return successors, (149), 8 states have call predecessors, (149), 8 states have call successors, (149) [2024-11-23 23:05:38,673 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 4838 transitions. [2024-11-23 23:05:38,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-11-23 23:05:38,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:05:38,686 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:05:38,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 23:05:38,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:05:38,887 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:05:38,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:05:38,888 INFO L85 PathProgramCache]: Analyzing trace with hash 741339069, now seen corresponding path program 1 times [2024-11-23 23:05:38,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:05:38,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814248793] [2024-11-23 23:05:38,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:05:38,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:05:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:05:44,595 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 366 proven. 342 refuted. 0 times theorem prover too weak. 7104 trivial. 0 not checked. [2024-11-23 23:05:44,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:05:44,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814248793] [2024-11-23 23:05:44,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814248793] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:05:44,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210056461] [2024-11-23 23:05:44,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:05:44,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:05:44,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:05:44,599 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:05:44,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:05:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:05:45,020 INFO L256 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 23:05:45,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:05:47,994 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 4289 proven. 234 refuted. 0 times theorem prover too weak. 3289 trivial. 0 not checked. [2024-11-23 23:05:47,994 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:05:50,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210056461] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:05:50,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:05:50,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8] total 22 [2024-11-23 23:05:50,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351235829] [2024-11-23 23:05:50,586 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:05:50,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-23 23:05:50,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:05:50,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-23 23:05:50,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=477, Unknown=1, NotChecked=0, Total=552 [2024-11-23 23:05:50,588 INFO L87 Difference]: Start difference. First operand 3128 states and 4838 transitions. Second operand has 22 states, 22 states have (on average 8.863636363636363) internal successors, (195), 22 states have internal predecessors, (195), 9 states have call successors, (126), 4 states have call predecessors, (126), 7 states have return successors, (126), 9 states have call predecessors, (126), 9 states have call successors, (126) [2024-11-23 23:06:08,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:06:08,421 INFO L93 Difference]: Finished difference Result 13027 states and 19868 transitions. [2024-11-23 23:06:08,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2024-11-23 23:06:08,423 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.863636363636363) internal successors, (195), 22 states have internal predecessors, (195), 9 states have call successors, (126), 4 states have call predecessors, (126), 7 states have return successors, (126), 9 states have call predecessors, (126), 9 states have call successors, (126) Word has length 412 [2024-11-23 23:06:08,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:06:08,477 INFO L225 Difference]: With dead ends: 13027 [2024-11-23 23:06:08,477 INFO L226 Difference]: Without dead ends: 9965 [2024-11-23 23:06:08,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 691 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4622 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=2253, Invalid=10856, Unknown=1, NotChecked=0, Total=13110 [2024-11-23 23:06:08,491 INFO L435 NwaCegarLoop]: 495 mSDtfsCounter, 4357 mSDsluCounter, 4013 mSDsCounter, 0 mSdLazyCounter, 4548 mSolverCounterSat, 1085 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4364 SdHoareTripleChecker+Valid, 4508 SdHoareTripleChecker+Invalid, 5633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1085 IncrementalHoareTripleChecker+Valid, 4548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:06:08,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4364 Valid, 4508 Invalid, 5633 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1085 Valid, 4548 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2024-11-23 23:06:08,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9965 states. [2024-11-23 23:06:09,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9965 to 4921. [2024-11-23 23:06:10,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4921 states, 3968 states have (on average 1.4768145161290323) internal successors, (5860), 4004 states have internal predecessors, (5860), 814 states have call successors, (814), 138 states have call predecessors, (814), 138 states have return successors, (814), 778 states have call predecessors, (814), 814 states have call successors, (814) [2024-11-23 23:06:10,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4921 states to 4921 states and 7488 transitions. [2024-11-23 23:06:10,032 INFO L78 Accepts]: Start accepts. Automaton has 4921 states and 7488 transitions. Word has length 412 [2024-11-23 23:06:10,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:06:10,033 INFO L471 AbstractCegarLoop]: Abstraction has 4921 states and 7488 transitions. [2024-11-23 23:06:10,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.863636363636363) internal successors, (195), 22 states have internal predecessors, (195), 9 states have call successors, (126), 4 states have call predecessors, (126), 7 states have return successors, (126), 9 states have call predecessors, (126), 9 states have call successors, (126) [2024-11-23 23:06:10,038 INFO L276 IsEmpty]: Start isEmpty. Operand 4921 states and 7488 transitions. [2024-11-23 23:06:10,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-11-23 23:06:10,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:06:10,047 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:06:10,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 23:06:10,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:06:10,248 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:06:10,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:06:10,249 INFO L85 PathProgramCache]: Analyzing trace with hash 493192575, now seen corresponding path program 1 times [2024-11-23 23:06:10,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:06:10,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984638543] [2024-11-23 23:06:10,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:06:10,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:06:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:06:11,449 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 63 proven. 123 refuted. 0 times theorem prover too weak. 7626 trivial. 0 not checked. [2024-11-23 23:06:11,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:06:11,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984638543] [2024-11-23 23:06:11,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984638543] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:06:11,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131752664] [2024-11-23 23:06:11,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:06:11,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:06:11,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:06:11,453 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:06:11,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:06:11,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:06:11,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 23:06:11,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:06:12,787 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 3548 proven. 123 refuted. 0 times theorem prover too weak. 4141 trivial. 0 not checked. [2024-11-23 23:06:12,787 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:06:13,404 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 63 proven. 123 refuted. 0 times theorem prover too weak. 7626 trivial. 0 not checked. [2024-11-23 23:06:13,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131752664] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:06:13,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:06:13,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-23 23:06:13,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136422925] [2024-11-23 23:06:13,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:06:13,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:06:13,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:06:13,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:06:13,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:06:13,408 INFO L87 Difference]: Start difference. First operand 4921 states and 7488 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 3 states have call successors, (104), 2 states have call predecessors, (104), 4 states have return successors, (106), 3 states have call predecessors, (106), 3 states have call successors, (106) [2024-11-23 23:06:16,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:06:16,036 INFO L93 Difference]: Finished difference Result 10221 states and 15465 transitions. [2024-11-23 23:06:16,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 23:06:16,037 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 3 states have call successors, (104), 2 states have call predecessors, (104), 4 states have return successors, (106), 3 states have call predecessors, (106), 3 states have call successors, (106) Word has length 412 [2024-11-23 23:06:16,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:06:16,079 INFO L225 Difference]: With dead ends: 10221 [2024-11-23 23:06:16,079 INFO L226 Difference]: Without dead ends: 6929 [2024-11-23 23:06:16,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 842 GetRequests, 821 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2024-11-23 23:06:16,087 INFO L435 NwaCegarLoop]: 419 mSDtfsCounter, 1294 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:06:16,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 1510 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-23 23:06:16,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6929 states. [2024-11-23 23:06:17,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6929 to 6171. [2024-11-23 23:06:17,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6171 states, 4894 states have (on average 1.4642419288925215) internal successors, (7166), 4938 states have internal predecessors, (7166), 1100 states have call successors, (1100), 176 states have call predecessors, (1100), 176 states have return successors, (1100), 1056 states have call predecessors, (1100), 1100 states have call successors, (1100) [2024-11-23 23:06:17,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6171 states to 6171 states and 9366 transitions. [2024-11-23 23:06:17,501 INFO L78 Accepts]: Start accepts. Automaton has 6171 states and 9366 transitions. Word has length 412 [2024-11-23 23:06:17,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:06:17,502 INFO L471 AbstractCegarLoop]: Abstraction has 6171 states and 9366 transitions. [2024-11-23 23:06:17,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 3 states have call successors, (104), 2 states have call predecessors, (104), 4 states have return successors, (106), 3 states have call predecessors, (106), 3 states have call successors, (106) [2024-11-23 23:06:17,503 INFO L276 IsEmpty]: Start isEmpty. Operand 6171 states and 9366 transitions. [2024-11-23 23:06:17,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-11-23 23:06:17,511 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:06:17,511 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:06:17,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 23:06:17,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:06:17,716 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:06:17,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:06:17,717 INFO L85 PathProgramCache]: Analyzing trace with hash 256323928, now seen corresponding path program 1 times [2024-11-23 23:06:17,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:06:17,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006264028] [2024-11-23 23:06:17,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:06:17,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:06:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:06:18,773 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 63 proven. 123 refuted. 0 times theorem prover too weak. 7626 trivial. 0 not checked. [2024-11-23 23:06:18,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:06:18,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006264028] [2024-11-23 23:06:18,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006264028] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:06:18,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590122930] [2024-11-23 23:06:18,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:06:18,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:06:18,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:06:18,776 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:06:18,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 23:06:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:06:19,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-23 23:06:19,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:06:21,830 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 3591 proven. 240 refuted. 0 times theorem prover too weak. 3981 trivial. 0 not checked. [2024-11-23 23:06:21,831 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:06:23,016 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 126 proven. 243 refuted. 0 times theorem prover too weak. 7443 trivial. 0 not checked. [2024-11-23 23:06:23,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590122930] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:06:23,017 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:06:23,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 20 [2024-11-23 23:06:23,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578742139] [2024-11-23 23:06:23,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:06:23,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-23 23:06:23,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:06:23,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-23 23:06:23,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:06:23,022 INFO L87 Difference]: Start difference. First operand 6171 states and 9366 transitions. Second operand has 20 states, 19 states have (on average 11.473684210526315) internal successors, (218), 18 states have internal predecessors, (218), 8 states have call successors, (189), 4 states have call predecessors, (189), 8 states have return successors, (189), 8 states have call predecessors, (189), 8 states have call successors, (189) [2024-11-23 23:06:35,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:06:35,704 INFO L93 Difference]: Finished difference Result 34257 states and 52946 transitions. [2024-11-23 23:06:35,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-23 23:06:35,706 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 11.473684210526315) internal successors, (218), 18 states have internal predecessors, (218), 8 states have call successors, (189), 4 states have call predecessors, (189), 8 states have return successors, (189), 8 states have call predecessors, (189), 8 states have call successors, (189) Word has length 413 [2024-11-23 23:06:35,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:06:35,830 INFO L225 Difference]: With dead ends: 34257 [2024-11-23 23:06:35,831 INFO L226 Difference]: Without dead ends: 28089 [2024-11-23 23:06:35,848 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 868 GetRequests, 821 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=640, Invalid=1712, Unknown=0, NotChecked=0, Total=2352 [2024-11-23 23:06:35,849 INFO L435 NwaCegarLoop]: 800 mSDtfsCounter, 2879 mSDsluCounter, 6981 mSDsCounter, 0 mSdLazyCounter, 5006 mSolverCounterSat, 881 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3007 SdHoareTripleChecker+Valid, 7781 SdHoareTripleChecker+Invalid, 5887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 881 IncrementalHoareTripleChecker+Valid, 5006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:06:35,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3007 Valid, 7781 Invalid, 5887 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [881 Valid, 5006 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-23 23:06:35,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28089 states. [2024-11-23 23:06:38,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28089 to 8837. [2024-11-23 23:06:38,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8837 states, 7048 states have (on average 1.4645289443813847) internal successors, (10322), 7112 states have internal predecessors, (10322), 1528 states have call successors, (1528), 260 states have call predecessors, (1528), 260 states have return successors, (1528), 1464 states have call predecessors, (1528), 1528 states have call successors, (1528) [2024-11-23 23:06:38,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8837 states to 8837 states and 13378 transitions. [2024-11-23 23:06:38,125 INFO L78 Accepts]: Start accepts. Automaton has 8837 states and 13378 transitions. Word has length 413 [2024-11-23 23:06:38,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:06:38,126 INFO L471 AbstractCegarLoop]: Abstraction has 8837 states and 13378 transitions. [2024-11-23 23:06:38,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 11.473684210526315) internal successors, (218), 18 states have internal predecessors, (218), 8 states have call successors, (189), 4 states have call predecessors, (189), 8 states have return successors, (189), 8 states have call predecessors, (189), 8 states have call successors, (189) [2024-11-23 23:06:38,126 INFO L276 IsEmpty]: Start isEmpty. Operand 8837 states and 13378 transitions. [2024-11-23 23:06:38,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-11-23 23:06:38,133 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:06:38,133 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:06:38,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 23:06:38,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:06:38,337 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:06:38,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:06:38,338 INFO L85 PathProgramCache]: Analyzing trace with hash -506963858, now seen corresponding path program 1 times [2024-11-23 23:06:38,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:06:38,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386499125] [2024-11-23 23:06:38,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:06:38,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:06:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:06:38,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [661665557] [2024-11-23 23:06:38,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:06:38,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:06:38,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:06:39,000 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:06:39,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 23:06:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:06:39,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-23 23:06:39,575 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:06:44,122 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 5856 proven. 402 refuted. 0 times theorem prover too weak. 1554 trivial. 0 not checked. [2024-11-23 23:06:44,122 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:06:50,006 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (mod c_~var_1_24~0 256))) (let ((.cse10 (mod (* 255 c_~var_1_40~0) 256)) (.cse5 (mod c_~var_1_40~0 256)) (.cse13 (mod c_~var_1_34~0 4294967296)) (.cse12 (not (= (mod c_~var_1_62~0 4294967296) 0))) (.cse6 (< 127 .cse4)) (.cse2 (mod c_~var_1_19~0 4294967296)) (.cse3 (+ (mod c_~var_1_45~0 65536) 1))) (let ((.cse0 (or .cse12 (and (forall ((v_z_44 Int)) (or (< v_z_44 0) (< (mod (mod v_z_44 .cse2) 4294967296) .cse3) (= v_z_44 128) (< 4294967295 v_z_44) (= v_z_44 .cse4))) (or .cse6 (forall ((v_z_44 Int)) (or (< v_z_44 0) (< (mod (mod v_z_44 .cse2) 4294967296) .cse3) (< 4294967295 v_z_44) (= v_z_44 .cse4))))))) (.cse1 (< .cse5 .cse13)) (.cse7 (< c_~var_1_40~0 0)) (.cse8 (< 0 (+ c_~var_1_40~0 1))) (.cse9 (< .cse10 .cse13))) (and (or (and .cse0 (or .cse1 (and (forall ((v_z_44 Int)) (or (< v_z_44 0) (< (mod (mod v_z_44 .cse2) 4294967296) .cse3) (= v_z_44 128) (= v_z_44 .cse4) (< .cse5 v_z_44))) (or (forall ((v_z_44 Int)) (or (< v_z_44 0) (< (mod (mod v_z_44 .cse2) 4294967296) .cse3) (= v_z_44 .cse4) (< .cse5 v_z_44))) .cse6)))) .cse7) (or .cse8 (and .cse0 (or .cse9 (and (forall ((v_z_44 Int)) (or (< v_z_44 0) (< (mod (mod v_z_44 .cse2) 4294967296) .cse3) (= v_z_44 128) (= v_z_44 .cse4) (< .cse10 v_z_44))) (or .cse6 (forall ((v_z_44 Int)) (or (< v_z_44 0) (< (mod (mod v_z_44 .cse2) 4294967296) .cse3) (= v_z_44 .cse4) (< .cse10 v_z_44)))))))) (or (< .cse4 128) (let ((.cse11 (or .cse12 (forall ((v_z_42 Int)) (or (< (mod (mod v_z_42 .cse2) 4294967296) .cse3) (< 4294967295 v_z_42) (= v_z_42 128) (< v_z_42 0)))))) (and (or (and (or .cse1 (forall ((v_z_42 Int)) (or (< (mod (mod v_z_42 .cse2) 4294967296) .cse3) (= v_z_42 128) (< v_z_42 0) (< .cse5 v_z_42)))) .cse11) .cse7) (or .cse8 (and (or .cse9 (forall ((v_z_42 Int)) (or (< (mod (mod v_z_42 .cse2) 4294967296) .cse3) (< .cse10 v_z_42) (= v_z_42 128) (< v_z_42 0)))) .cse11))))))))) is different from false [2024-11-23 23:07:06,751 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-23 23:07:06,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2024-11-23 23:07:06,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:06,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386499125] [2024-11-23 23:07:06,752 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:07:06,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661665557] [2024-11-23 23:07:06,752 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-23 23:07:06,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 23:07:06,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-23 23:07:06,953 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:912) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:786) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:374) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:323) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:555) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 45 more [2024-11-23 23:07:06,959 INFO L158 Benchmark]: Toolchain (without parser) took 429923.08ms. Allocated memory was 142.6MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 100.1MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 213.2MB. Max. memory is 16.1GB. [2024-11-23 23:07:06,960 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 167.8MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:07:06,960 INFO L158 Benchmark]: CACSL2BoogieTranslator took 648.79ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 77.7MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 23:07:06,960 INFO L158 Benchmark]: Boogie Procedure Inliner took 141.13ms. Allocated memory is still 142.6MB. Free memory was 77.7MB in the beginning and 70.9MB in the end (delta: 6.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:07:06,960 INFO L158 Benchmark]: Boogie Preprocessor took 96.12ms. Allocated memory is still 142.6MB. Free memory was 70.9MB in the beginning and 62.9MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:07:06,961 INFO L158 Benchmark]: RCFGBuilder took 1737.91ms. Allocated memory is still 142.6MB. Free memory was 62.9MB in the beginning and 71.0MB in the end (delta: -8.1MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2024-11-23 23:07:06,962 INFO L158 Benchmark]: TraceAbstraction took 427288.70ms. Allocated memory was 142.6MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 70.4MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 187.5MB. Max. memory is 16.1GB. [2024-11-23 23:07:06,963 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 167.8MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 648.79ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 77.7MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 141.13ms. Allocated memory is still 142.6MB. Free memory was 77.7MB in the beginning and 70.9MB in the end (delta: 6.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 96.12ms. Allocated memory is still 142.6MB. Free memory was 70.9MB in the beginning and 62.9MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1737.91ms. Allocated memory is still 142.6MB. Free memory was 62.9MB in the beginning and 71.0MB in the end (delta: -8.1MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. * TraceAbstraction took 427288.70ms. Allocated memory was 142.6MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 70.4MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 187.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC --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 e3471f06dc12ad44598fd2961f3d0cb274ed30b5886ce0a764ca9d78e786b896 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:07:09,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:07:09,925 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 23:07:09,931 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:07:09,931 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:07:09,957 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:07:09,958 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:07:09,958 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:07:09,959 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:07:09,959 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:07:09,959 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:07:09,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:07:09,963 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:07:09,963 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:07:09,963 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:07:09,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:07:09,964 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:07:09,964 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:07:09,964 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:07:09,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:07:09,964 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:07:09,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:07:09,965 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:07:09,965 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 23:07:09,965 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 23:07:09,965 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 23:07:09,965 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:07:09,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:07:09,966 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:07:09,966 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:07:09,966 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:07:09,966 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:07:09,966 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:07:09,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:07:09,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:07:09,967 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:07:09,967 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:07:09,967 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:07:09,967 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:07:09,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:07:09,968 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:07:09,968 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:07:09,968 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:07:09,968 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:07:09,968 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 23:07:09,969 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 23:07:09,969 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:07:09,969 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:07:09,969 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:07:09,969 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:07:09,969 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC 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 -> e3471f06dc12ad44598fd2961f3d0cb274ed30b5886ce0a764ca9d78e786b896 [2024-11-23 23:07:10,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:07:10,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:07:10,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:07:10,440 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:07:10,441 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:07:10,442 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i [2024-11-23 23:07:14,100 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/data/3a24753af/095356582c064834ab2c2c8425bdf59e/FLAG42f6cb306 [2024-11-23 23:07:14,526 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:07:14,528 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i [2024-11-23 23:07:14,549 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/data/3a24753af/095356582c064834ab2c2c8425bdf59e/FLAG42f6cb306 [2024-11-23 23:07:14,578 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/data/3a24753af/095356582c064834ab2c2c8425bdf59e [2024-11-23 23:07:14,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:07:14,585 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:07:14,589 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:07:14,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:07:14,596 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:07:14,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:07:14" (1/1) ... [2024-11-23 23:07:14,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f584973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:14, skipping insertion in model container [2024-11-23 23:07:14,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:07:14" (1/1) ... [2024-11-23 23:07:14,649 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:07:14,887 WARN L250 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_39a28466-1588-41a4-a9ee-b1070652cc53/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i[916,929] [2024-11-23 23:07:15,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:07:15,099 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:07:15,113 WARN L250 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_39a28466-1588-41a4-a9ee-b1070652cc53/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i[916,929] [2024-11-23 23:07:15,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:07:15,325 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:07:15,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:15 WrapperNode [2024-11-23 23:07:15,326 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:07:15,328 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:07:15,328 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:07:15,329 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:07:15,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:15" (1/1) ... [2024-11-23 23:07:15,369 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:15" (1/1) ... [2024-11-23 23:07:15,417 INFO L138 Inliner]: procedures = 27, calls = 76, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 421 [2024-11-23 23:07:15,418 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:07:15,419 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:07:15,419 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:07:15,419 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:07:15,431 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:15" (1/1) ... [2024-11-23 23:07:15,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:15" (1/1) ... [2024-11-23 23:07:15,439 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:15" (1/1) ... [2024-11-23 23:07:15,475 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 23:07:15,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:15" (1/1) ... [2024-11-23 23:07:15,478 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:15" (1/1) ... [2024-11-23 23:07:15,508 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:15" (1/1) ... [2024-11-23 23:07:15,513 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:15" (1/1) ... [2024-11-23 23:07:15,523 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:15" (1/1) ... [2024-11-23 23:07:15,536 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:15" (1/1) ... [2024-11-23 23:07:15,542 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:15" (1/1) ... [2024-11-23 23:07:15,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:07:15,556 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:07:15,556 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:07:15,556 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:07:15,561 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:15" (1/1) ... [2024-11-23 23:07:15,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:07:15,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:07:15,609 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:07:15,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:07:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:07:15,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 23:07:15,648 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:07:15,648 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:07:15,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:07:15,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:07:15,859 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:07:15,861 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:07:42,114 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-23 23:07:42,115 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:07:42,132 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:07:42,132 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:07:42,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:07:42 BoogieIcfgContainer [2024-11-23 23:07:42,133 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:07:42,136 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:07:42,136 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:07:42,142 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:07:42,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:07:14" (1/3) ... [2024-11-23 23:07:42,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ce89b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:07:42, skipping insertion in model container [2024-11-23 23:07:42,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:15" (2/3) ... [2024-11-23 23:07:42,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ce89b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:07:42, skipping insertion in model container [2024-11-23 23:07:42,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:07:42" (3/3) ... [2024-11-23 23:07:42,150 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-95.i [2024-11-23 23:07:42,168 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:07:42,171 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-95.i that has 2 procedures, 187 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:07:42,280 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:07:42,300 INFO L333 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, 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;@10c7ad53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:07:42,301 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:07:42,309 INFO L276 IsEmpty]: Start isEmpty. Operand has 187 states, 121 states have (on average 1.5289256198347108) internal successors, (185), 122 states have internal predecessors, (185), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-23 23:07:42,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-11-23 23:07:42,347 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:42,349 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:42,350 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:07:42,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:42,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1975282257, now seen corresponding path program 1 times [2024-11-23 23:07:42,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:07:42,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529347127] [2024-11-23 23:07:42,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:42,379 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 [2024-11-23 23:07:42,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:07:42,383 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:07:42,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:07:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:44,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:07:44,659 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:07:44,823 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 1852 proven. 0 refuted. 0 times theorem prover too weak. 5960 trivial. 0 not checked. [2024-11-23 23:07:44,823 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:07:44,824 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:07:44,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [529347127] [2024-11-23 23:07:44,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [529347127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:44,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:44,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:07:44,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658979845] [2024-11-23 23:07:44,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:44,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:07:44,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:07:44,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:07:44,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:07:44,881 INFO L87 Difference]: Start difference. First operand has 187 states, 121 states have (on average 1.5289256198347108) internal successors, (185), 122 states have internal predecessors, (185), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2024-11-23 23:07:44,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:44,995 INFO L93 Difference]: Finished difference Result 366 states and 677 transitions. [2024-11-23 23:07:44,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:07:44,999 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 402 [2024-11-23 23:07:45,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:45,014 INFO L225 Difference]: With dead ends: 366 [2024-11-23 23:07:45,016 INFO L226 Difference]: Without dead ends: 182 [2024-11-23 23:07:45,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:07:45,034 INFO L435 NwaCegarLoop]: 301 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:45,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:07:45,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-23 23:07:45,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2024-11-23 23:07:45,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 117 states have (on average 1.4957264957264957) internal successors, (175), 117 states have internal predecessors, (175), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-23 23:07:45,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 301 transitions. [2024-11-23 23:07:45,159 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 301 transitions. Word has length 402 [2024-11-23 23:07:45,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:45,162 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 301 transitions. [2024-11-23 23:07:45,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2024-11-23 23:07:45,163 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 301 transitions. [2024-11-23 23:07:45,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-11-23 23:07:45,184 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:45,185 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:45,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/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)] Ended with exit code 0 [2024-11-23 23:07:45,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:07:45,387 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:07:45,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:45,389 INFO L85 PathProgramCache]: Analyzing trace with hash 293251329, now seen corresponding path program 1 times [2024-11-23 23:07:45,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:07:45,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [948725688] [2024-11-23 23:07:45,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:45,393 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 [2024-11-23 23:07:45,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:07:45,395 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:07:45,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:07:47,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:47,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 23:07:47,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:07:47,810 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-11-23 23:07:47,811 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:07:47,811 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:07:47,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [948725688] [2024-11-23 23:07:47,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [948725688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:47,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:47,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:07:47,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341204734] [2024-11-23 23:07:47,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:47,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:07:47,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:07:47,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:07:47,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:07:47,818 INFO L87 Difference]: Start difference. First operand 182 states and 301 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-11-23 23:07:48,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:48,326 INFO L93 Difference]: Finished difference Result 409 states and 673 transitions. [2024-11-23 23:07:48,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:07:48,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 402 [2024-11-23 23:07:48,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:48,334 INFO L225 Difference]: With dead ends: 409 [2024-11-23 23:07:48,335 INFO L226 Difference]: Without dead ends: 230 [2024-11-23 23:07:48,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:07:48,338 INFO L435 NwaCegarLoop]: 357 mSDtfsCounter, 185 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:48,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 539 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:07:48,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-23 23:07:48,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 229. [2024-11-23 23:07:48,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 136 states have (on average 1.4191176470588236) internal successors, (193), 137 states have internal predecessors, (193), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-23 23:07:48,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 373 transitions. [2024-11-23 23:07:48,402 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 373 transitions. Word has length 402 [2024-11-23 23:07:48,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:48,408 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 373 transitions. [2024-11-23 23:07:48,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-11-23 23:07:48,409 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 373 transitions. [2024-11-23 23:07:48,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-11-23 23:07:48,422 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:48,422 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:48,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-23 23:07:48,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:07:48,623 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:07:48,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:48,624 INFO L85 PathProgramCache]: Analyzing trace with hash -269613671, now seen corresponding path program 1 times [2024-11-23 23:07:48,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:07:48,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1701011506] [2024-11-23 23:07:48,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:48,626 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 [2024-11-23 23:07:48,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:07:48,629 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:07:48,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-23 23:07:50,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:50,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:07:50,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:07:51,471 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-11-23 23:07:51,471 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:07:51,471 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:07:51,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1701011506] [2024-11-23 23:07:51,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1701011506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:51,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:51,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:07:51,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448756598] [2024-11-23 23:07:51,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:51,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:07:51,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:07:51,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:07:51,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:07:51,475 INFO L87 Difference]: Start difference. First operand 229 states and 373 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-11-23 23:07:52,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:52,684 INFO L93 Difference]: Finished difference Result 614 states and 1005 transitions. [2024-11-23 23:07:52,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:07:52,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 403 [2024-11-23 23:07:52,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:52,696 INFO L225 Difference]: With dead ends: 614 [2024-11-23 23:07:52,696 INFO L226 Difference]: Without dead ends: 431 [2024-11-23 23:07:52,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:07:52,700 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 313 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:52,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 1066 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 23:07:52,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-11-23 23:07:52,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 425. [2024-11-23 23:07:52,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 285 states have (on average 1.5052631578947369) internal successors, (429), 288 states have internal predecessors, (429), 134 states have call successors, (134), 5 states have call predecessors, (134), 5 states have return successors, (134), 131 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-23 23:07:52,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 697 transitions. [2024-11-23 23:07:52,831 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 697 transitions. Word has length 403 [2024-11-23 23:07:52,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:52,834 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 697 transitions. [2024-11-23 23:07:52,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-11-23 23:07:52,835 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 697 transitions. [2024-11-23 23:07:52,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-11-23 23:07:52,845 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:52,846 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:52,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-23 23:07:53,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:07:53,047 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:07:53,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:53,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1234893863, now seen corresponding path program 1 times [2024-11-23 23:07:53,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:07:53,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [507054072] [2024-11-23 23:07:53,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:53,049 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 [2024-11-23 23:07:53,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:07:53,053 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:07:53,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-23 23:07:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:55,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:07:55,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:07:55,523 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-11-23 23:07:55,524 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:07:55,524 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:07:55,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [507054072] [2024-11-23 23:07:55,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [507054072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:07:55,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:07:55,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:07:55,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527325736] [2024-11-23 23:07:55,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:07:55,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:07:55,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:07:55,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:07:55,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:07:55,528 INFO L87 Difference]: Start difference. First operand 425 states and 697 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-11-23 23:07:56,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:56,352 INFO L93 Difference]: Finished difference Result 923 states and 1505 transitions. [2024-11-23 23:07:56,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:07:56,353 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 403 [2024-11-23 23:07:56,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:56,363 INFO L225 Difference]: With dead ends: 923 [2024-11-23 23:07:56,367 INFO L226 Difference]: Without dead ends: 544 [2024-11-23 23:07:56,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:07:56,371 INFO L435 NwaCegarLoop]: 371 mSDtfsCounter, 536 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:56,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 1091 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:07:56,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-11-23 23:07:56,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 454. [2024-11-23 23:07:56,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 312 states have (on average 1.5032051282051282) internal successors, (469), 315 states have internal predecessors, (469), 134 states have call successors, (134), 7 states have call predecessors, (134), 7 states have return successors, (134), 131 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-23 23:07:56,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 737 transitions. [2024-11-23 23:07:56,459 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 737 transitions. Word has length 403 [2024-11-23 23:07:56,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:56,462 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 737 transitions. [2024-11-23 23:07:56,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-11-23 23:07:56,462 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 737 transitions. [2024-11-23 23:07:56,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-11-23 23:07:56,469 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:56,470 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:56,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-23 23:07:56,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:07:56,671 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:07:56,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:56,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1468875976, now seen corresponding path program 1 times [2024-11-23 23:07:56,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:07:56,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1427909120] [2024-11-23 23:07:56,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:56,674 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 [2024-11-23 23:07:56,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:07:56,677 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:07:56,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-23 23:07:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:58,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:07:58,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:08:13,598 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-11-23 23:08:13,598 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:08:13,598 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:08:13,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1427909120] [2024-11-23 23:08:13,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1427909120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:08:13,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:08:13,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:08:13,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557961516] [2024-11-23 23:08:13,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:08:13,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:08:13,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:08:13,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:08:13,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:08:13,602 INFO L87 Difference]: Start difference. First operand 454 states and 737 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-11-23 23:08:18,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-23 23:08:22,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-23 23:08:26,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-23 23:08:28,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-23 23:08:29,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-23 23:08:33,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-23 23:08:37,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-23 23:08:41,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.37s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-23 23:08:45,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-23 23:08:50,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-23 23:08:55,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-23 23:08:59,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-23 23:09:01,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-23 23:09:03,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-23 23:09:07,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-23 23:09:07,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:09:07,359 INFO L93 Difference]: Finished difference Result 1262 states and 2059 transitions. [2024-11-23 23:09:07,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:09:07,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 404 [2024-11-23 23:09:07,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:09:07,436 INFO L225 Difference]: With dead ends: 1262 [2024-11-23 23:09:07,436 INFO L226 Difference]: Without dead ends: 858 [2024-11-23 23:09:07,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:09:07,443 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 87 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:09:07,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 513 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 7 Unknown, 0 Unchecked, 53.7s Time] [2024-11-23 23:09:07,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2024-11-23 23:09:07,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 856. [2024-11-23 23:09:07,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 601 states have (on average 1.5174708818635607) internal successors, (912), 606 states have internal predecessors, (912), 241 states have call successors, (241), 13 states have call predecessors, (241), 13 states have return successors, (241), 236 states have call predecessors, (241), 241 states have call successors, (241) [2024-11-23 23:09:07,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1394 transitions. [2024-11-23 23:09:07,582 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1394 transitions. Word has length 404 [2024-11-23 23:09:07,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:09:07,585 INFO L471 AbstractCegarLoop]: Abstraction has 856 states and 1394 transitions. [2024-11-23 23:09:07,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-11-23 23:09:07,585 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1394 transitions. [2024-11-23 23:09:07,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-11-23 23:09:07,593 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:09:07,593 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:09:07,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-23 23:09:07,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 23:09:07,794 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:09:07,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:09:07,795 INFO L85 PathProgramCache]: Analyzing trace with hash 306131386, now seen corresponding path program 1 times [2024-11-23 23:09:07,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:09:07,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880769162] [2024-11-23 23:09:07,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:09:07,796 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 [2024-11-23 23:09:07,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:09:07,798 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-23 23:09:07,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39a28466-1588-41a4-a9ee-b1070652cc53/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-23 23:09:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:09:09,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-23 23:09:09,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:10:20,963 WARN L286 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:10:29,226 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:10:37,483 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:10:45,752 WARN L286 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:10:54,009 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:11:02,259 WARN L286 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:11:10,515 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:11:18,767 WARN L286 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:11:27,027 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:11:35,282 WARN L286 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:11:44,425 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:11:52,672 WARN L286 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:12:00,938 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:12:16,266 WARN L286 SmtUtils]: Spent 7.17s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:12:21,059 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ zero_extend 24) c_~var_1_6~0)) (.cse1 ((_ zero_extend 24) c_~var_1_4~0)) (.cse5 ((_ zero_extend 24) c_~var_1_5~0))) (and (bvsle .cse0 (_ bv63 32)) (= c_~var_1_15~0 (bvadd .cse1 .cse0)) (let ((.cse3 ((_ sign_extend 24) c_~var_1_9~0))) (let ((.cse2 (bvslt (_ bv5 32) .cse3))) (or (and (not .cse2) (= c_~var_1_7~0 ((_ extract 7 0) (bvadd .cse0 .cse3)))) (and (= ((_ extract 7 0) (bvadd (_ bv5 32) .cse0)) c_~var_1_7~0) .cse2)))) (not (= (_ bv0 8) c_~var_1_8~0)) (= ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 259.0 4.0))) c_~var_1_12~0) (let ((.cse4 (fp.lt c_~var_1_13~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) (or (and (fp.eq c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 c_~var_1_13~0)) (not .cse4)) (and (fp.eq c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 (fp.neg c_~var_1_13~0))) .cse4))) (= c_~last_1_var_1_11~0 (_ bv0 16)) (bvsle .cse5 .cse1) (= (_ bv0 16) c_~var_1_11~0) (bvsge .cse5 (_ bv63 32)) (bvsle .cse5 (_ bv127 32)) (= c_~last_1_var_1_15~0 (_ bv32 32)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2024-11-23 23:12:25,133 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ zero_extend 24) c_~var_1_6~0)) (.cse1 ((_ zero_extend 24) c_~var_1_4~0)) (.cse5 ((_ zero_extend 24) c_~var_1_5~0))) (and (bvsle .cse0 (_ bv63 32)) (= c_~var_1_15~0 (bvadd .cse1 .cse0)) (let ((.cse3 ((_ sign_extend 24) c_~var_1_9~0))) (let ((.cse2 (bvslt (_ bv5 32) .cse3))) (or (and (not .cse2) (= c_~var_1_7~0 ((_ extract 7 0) (bvadd .cse0 .cse3)))) (and (= ((_ extract 7 0) (bvadd (_ bv5 32) .cse0)) c_~var_1_7~0) .cse2)))) (not (= (_ bv0 8) c_~var_1_8~0)) (= ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 259.0 4.0))) c_~var_1_12~0) (let ((.cse4 (fp.lt c_~var_1_13~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) (or (and (fp.eq c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 c_~var_1_13~0)) (not .cse4)) (and (fp.eq c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 (fp.neg c_~var_1_13~0))) .cse4))) (= c_~last_1_var_1_11~0 (_ bv0 16)) (bvsle .cse5 .cse1) (= (_ bv0 16) c_~var_1_11~0) (bvsge .cse5 (_ bv63 32)) (bvsle .cse5 (_ bv127 32)) (= c_~last_1_var_1_15~0 (_ bv32 32)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2024-11-23 23:12:38,284 WARN L286 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:12:47,030 WARN L286 SmtUtils]: Spent 5.21s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:12:55,273 WARN L286 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:13:00,643 WARN L286 SmtUtils]: Spent 5.37s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:13:08,875 WARN L286 SmtUtils]: Spent 8.23s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:13:16,171 WARN L286 SmtUtils]: Spent 7.30s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:13:24,416 WARN L286 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:13:32,657 WARN L286 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:13:40,894 WARN L286 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-23 23:13:49,141 WARN L286 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)