./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-53.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-53.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1 --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 7cb9b30dbc4292cb9b2a5d2ba3cd92c29fce78cf71613b08638f29c6cc332119 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:14:23,999 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:14:24,057 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 12:14:24,061 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:14:24,061 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:14:24,081 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:14:24,082 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:14:24,082 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:14:24,083 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:14:24,083 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:14:24,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:14:24,083 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:14:24,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:14:24,083 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:14:24,083 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:14:24,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:14:24,084 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:14:24,084 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:14:24,084 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:14:24,084 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:14:24,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:14:24,084 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:14:24,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:14:24,084 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:14:24,084 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:14:24,085 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:14:24,085 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:14:24,085 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:14:24,085 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:14:24,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:14:24,085 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:14:24,085 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:14:24,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:14:24,085 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:14:24,086 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:14:24,086 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:14:24,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:14:24,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:14:24,086 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:14:24,086 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:14:24,086 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:14:24,086 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:14:24,086 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:14:24,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:14:24,087 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:14:24,087 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:14:24,087 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:14:24,087 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:14:24,087 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_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1 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 -> 7cb9b30dbc4292cb9b2a5d2ba3cd92c29fce78cf71613b08638f29c6cc332119 [2024-12-02 12:14:24,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:14:24,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:14:24,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:14:24,323 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:14:24,323 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:14:24,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-53.i [2024-12-02 12:14:26,999 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/data/8129f820f/a324f2cdb2c740c2a6e4042085af8ea7/FLAGdc08f1961 [2024-12-02 12:14:27,276 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:14:27,277 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-53.i [2024-12-02 12:14:27,288 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/data/8129f820f/a324f2cdb2c740c2a6e4042085af8ea7/FLAGdc08f1961 [2024-12-02 12:14:27,305 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/data/8129f820f/a324f2cdb2c740c2a6e4042085af8ea7 [2024-12-02 12:14:27,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:14:27,310 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:14:27,311 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:14:27,311 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:14:27,316 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:14:27,317 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:14:27" (1/1) ... [2024-12-02 12:14:27,318 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6860e267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:14:27, skipping insertion in model container [2024-12-02 12:14:27,318 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:14:27" (1/1) ... [2024-12-02 12:14:27,350 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:14:27,486 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_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-53.i[916,929] [2024-12-02 12:14:27,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:14:27,599 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:14:27,606 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_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-53.i[916,929] [2024-12-02 12:14:27,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:14:27,687 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:14:27,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:14:27 WrapperNode [2024-12-02 12:14:27,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:14:27,688 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:14:27,688 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:14:27,688 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:14:27,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:14:27" (1/1) ... [2024-12-02 12:14:27,702 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:14:27" (1/1) ... [2024-12-02 12:14:27,752 INFO L138 Inliner]: procedures = 26, calls = 58, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 411 [2024-12-02 12:14:27,752 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:14:27,752 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:14:27,753 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:14:27,753 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:14:27,762 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:14:27" (1/1) ... [2024-12-02 12:14:27,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:14:27" (1/1) ... [2024-12-02 12:14:27,771 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:14:27" (1/1) ... [2024-12-02 12:14:27,798 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]. [2024-12-02 12:14:27,799 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:14:27" (1/1) ... [2024-12-02 12:14:27,799 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:14:27" (1/1) ... [2024-12-02 12:14:27,816 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:14:27" (1/1) ... [2024-12-02 12:14:27,820 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:14:27" (1/1) ... [2024-12-02 12:14:27,825 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:14:27" (1/1) ... [2024-12-02 12:14:27,832 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:14:27" (1/1) ... [2024-12-02 12:14:27,836 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:14:27" (1/1) ... [2024-12-02 12:14:27,849 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:14:27,850 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:14:27,850 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:14:27,850 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:14:27,851 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:14:27" (1/1) ... [2024-12-02 12:14:27,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:14:27,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:14:27,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:14:27,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:14:27,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:14:27,908 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 12:14:27,908 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 12:14:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:14:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:14:27,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:14:28,016 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:14:28,018 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:14:28,730 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-12-02 12:14:28,730 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:14:28,742 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:14:28,742 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 12:14:28,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:14:28 BoogieIcfgContainer [2024-12-02 12:14:28,743 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:14:28,745 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:14:28,745 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:14:28,748 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:14:28,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:14:27" (1/3) ... [2024-12-02 12:14:28,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa81c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:14:28, skipping insertion in model container [2024-12-02 12:14:28,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:14:27" (2/3) ... [2024-12-02 12:14:28,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa81c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:14:28, skipping insertion in model container [2024-12-02 12:14:28,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:14:28" (3/3) ... [2024-12-02 12:14:28,751 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-53.i [2024-12-02 12:14:28,762 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:14:28,765 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount250_file-53.i that has 2 procedures, 169 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 12:14:28,832 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:14:28,841 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;@53723506, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:14:28,842 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:14:28,845 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 121 states have (on average 1.4793388429752066) internal successors, (179), 122 states have internal predecessors, (179), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-12-02 12:14:28,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-12-02 12:14:28,860 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:14:28,861 INFO L218 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:14:28,861 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:14:28,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:14:28,866 INFO L85 PathProgramCache]: Analyzing trace with hash 178338985, now seen corresponding path program 1 times [2024-12-02 12:14:28,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:14:28,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581235591] [2024-12-02 12:14:28,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:28,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:14:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:29,280 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 3872 trivial. 0 not checked. [2024-12-02 12:14:29,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:14:29,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581235591] [2024-12-02 12:14:29,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581235591] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:14:29,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866514354] [2024-12-02 12:14:29,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:29,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:14:29,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:14:29,285 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:14:29,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 12:14:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:29,584 INFO L256 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 12:14:29,597 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:14:29,642 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 3872 trivial. 0 not checked. [2024-12-02 12:14:29,642 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:14:29,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866514354] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:14:29,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:14:29,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 12:14:29,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801642443] [2024-12-02 12:14:29,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:14:29,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 12:14:29,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:14:29,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 12:14:29,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:14:29,677 INFO L87 Difference]: Start difference. First operand has 169 states, 121 states have (on average 1.4793388429752066) internal successors, (179), 122 states have internal predecessors, (179), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 2 states have call successors, (45) [2024-12-02 12:14:29,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:14:29,720 INFO L93 Difference]: Finished difference Result 329 states and 573 transitions. [2024-12-02 12:14:29,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 12:14:29,722 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 2 states have call successors, (45) Word has length 305 [2024-12-02 12:14:29,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:14:29,731 INFO L225 Difference]: With dead ends: 329 [2024-12-02 12:14:29,731 INFO L226 Difference]: Without dead ends: 163 [2024-12-02 12:14:29,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:14:29,738 INFO L435 NwaCegarLoop]: 257 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, 257 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 [2024-12-02 12:14:29,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:14:29,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-12-02 12:14:29,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2024-12-02 12:14:29,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 116 states have (on average 1.4396551724137931) internal successors, (167), 116 states have internal predecessors, (167), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-12-02 12:14:29,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 257 transitions. [2024-12-02 12:14:29,789 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 257 transitions. Word has length 305 [2024-12-02 12:14:29,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:14:29,789 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 257 transitions. [2024-12-02 12:14:29,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 2 states have call successors, (45) [2024-12-02 12:14:29,790 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 257 transitions. [2024-12-02 12:14:29,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-12-02 12:14:29,796 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:14:29,797 INFO L218 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:14:29,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 12:14:29,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 12:14:29,998 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:14:29,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:14:29,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1620621355, now seen corresponding path program 1 times [2024-12-02 12:14:29,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:14:29,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102020841] [2024-12-02 12:14:29,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:29,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:14:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:30,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-12-02 12:14:30,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:14:30,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102020841] [2024-12-02 12:14:30,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102020841] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:14:30,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:14:30,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:14:30,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142005546] [2024-12-02 12:14:30,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:14:30,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:14:30,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:14:30,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:14:30,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:14:30,832 INFO L87 Difference]: Start difference. First operand 163 states and 257 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2024-12-02 12:14:31,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:14:31,334 INFO L93 Difference]: Finished difference Result 441 states and 692 transitions. [2024-12-02 12:14:31,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:14:31,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) Word has length 305 [2024-12-02 12:14:31,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:14:31,339 INFO L225 Difference]: With dead ends: 441 [2024-12-02 12:14:31,339 INFO L226 Difference]: Without dead ends: 281 [2024-12-02 12:14:31,340 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:14:31,341 INFO L435 NwaCegarLoop]: 423 mSDtfsCounter, 179 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:14:31,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1295 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:14:31,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-12-02 12:14:31,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 165. [2024-12-02 12:14:31,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 118 states have (on average 1.4322033898305084) internal successors, (169), 118 states have internal predecessors, (169), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-12-02 12:14:31,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 259 transitions. [2024-12-02 12:14:31,366 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 259 transitions. Word has length 305 [2024-12-02 12:14:31,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:14:31,367 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 259 transitions. [2024-12-02 12:14:31,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2024-12-02 12:14:31,368 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 259 transitions. [2024-12-02 12:14:31,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-12-02 12:14:31,372 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:14:31,373 INFO L218 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:14:31,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:14:31,373 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:14:31,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:14:31,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1973281363, now seen corresponding path program 1 times [2024-12-02 12:14:31,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:14:31,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241346271] [2024-12-02 12:14:31,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:31,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:14:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:31,957 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-12-02 12:14:31,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:14:31,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241346271] [2024-12-02 12:14:31,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241346271] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:14:31,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:14:31,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:14:31,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631294027] [2024-12-02 12:14:31,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:14:31,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:14:31,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:14:31,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:14:31,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:14:31,960 INFO L87 Difference]: Start difference. First operand 165 states and 259 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2024-12-02 12:14:32,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:14:32,215 INFO L93 Difference]: Finished difference Result 523 states and 820 transitions. [2024-12-02 12:14:32,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:14:32,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) Word has length 305 [2024-12-02 12:14:32,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:14:32,219 INFO L225 Difference]: With dead ends: 523 [2024-12-02 12:14:32,219 INFO L226 Difference]: Without dead ends: 361 [2024-12-02 12:14:32,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:14:32,221 INFO L435 NwaCegarLoop]: 298 mSDtfsCounter, 289 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:14:32,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 796 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:14:32,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-12-02 12:14:32,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 325. [2024-12-02 12:14:32,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 232 states have (on average 1.4353448275862069) internal successors, (333), 232 states have internal predecessors, (333), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 12:14:32,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 513 transitions. [2024-12-02 12:14:32,260 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 513 transitions. Word has length 305 [2024-12-02 12:14:32,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:14:32,261 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 513 transitions. [2024-12-02 12:14:32,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2024-12-02 12:14:32,261 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 513 transitions. [2024-12-02 12:14:32,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-12-02 12:14:32,264 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:14:32,264 INFO L218 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:14:32,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 12:14:32,264 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:14:32,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:14:32,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1549634641, now seen corresponding path program 1 times [2024-12-02 12:14:32,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:14:32,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998775671] [2024-12-02 12:14:32,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:32,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:14:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:33,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-12-02 12:14:33,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:14:33,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998775671] [2024-12-02 12:14:33,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998775671] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:14:33,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:14:33,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:14:33,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802443269] [2024-12-02 12:14:33,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:14:33,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:14:33,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:14:33,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:14:33,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:14:33,585 INFO L87 Difference]: Start difference. First operand 325 states and 513 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2024-12-02 12:14:34,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:14:34,227 INFO L93 Difference]: Finished difference Result 984 states and 1551 transitions. [2024-12-02 12:14:34,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:14:34,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) Word has length 305 [2024-12-02 12:14:34,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:14:34,233 INFO L225 Difference]: With dead ends: 984 [2024-12-02 12:14:34,233 INFO L226 Difference]: Without dead ends: 662 [2024-12-02 12:14:34,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:14:34,235 INFO L435 NwaCegarLoop]: 291 mSDtfsCounter, 405 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:14:34,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 1115 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:14:34,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-12-02 12:14:34,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 438. [2024-12-02 12:14:34,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 299 states have (on average 1.411371237458194) internal successors, (422), 299 states have internal predecessors, (422), 135 states have call successors, (135), 3 states have call predecessors, (135), 3 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-12-02 12:14:34,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 692 transitions. [2024-12-02 12:14:34,290 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 692 transitions. Word has length 305 [2024-12-02 12:14:34,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:14:34,290 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 692 transitions. [2024-12-02 12:14:34,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2024-12-02 12:14:34,291 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 692 transitions. [2024-12-02 12:14:34,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-12-02 12:14:34,293 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:14:34,293 INFO L218 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:14:34,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 12:14:34,294 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:14:34,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:14:34,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1330779923, now seen corresponding path program 1 times [2024-12-02 12:14:34,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:14:34,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28127517] [2024-12-02 12:14:34,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:34,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:14:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:35,715 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 33 proven. 99 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2024-12-02 12:14:35,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:14:35,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28127517] [2024-12-02 12:14:35,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28127517] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:14:35,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228272818] [2024-12-02 12:14:35,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:35,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:14:35,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:14:35,718 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:14:35,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 12:14:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:35,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 12:14:35,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:14:36,553 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 1518 proven. 99 refuted. 0 times theorem prover too weak. 2343 trivial. 0 not checked. [2024-12-02 12:14:36,553 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:14:36,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 33 proven. 99 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2024-12-02 12:14:36,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228272818] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:14:36,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:14:36,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-12-02 12:14:36,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811314781] [2024-12-02 12:14:36,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:14:36,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:14:36,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:14:36,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:14:36,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:14:36,982 INFO L87 Difference]: Start difference. First operand 438 states and 692 transitions. Second operand has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 3 states have call successors, (111), 2 states have call predecessors, (111), 4 states have return successors, (112), 3 states have call predecessors, (112), 3 states have call successors, (112) [2024-12-02 12:14:37,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:14:37,331 INFO L93 Difference]: Finished difference Result 796 states and 1247 transitions. [2024-12-02 12:14:37,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:14:37,332 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 3 states have call successors, (111), 2 states have call predecessors, (111), 4 states have return successors, (112), 3 states have call predecessors, (112), 3 states have call successors, (112) Word has length 305 [2024-12-02 12:14:37,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:14:37,335 INFO L225 Difference]: With dead ends: 796 [2024-12-02 12:14:37,335 INFO L226 Difference]: Without dead ends: 456 [2024-12-02 12:14:37,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:14:37,336 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 399 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:14:37,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 508 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:14:37,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-12-02 12:14:37,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 450. [2024-12-02 12:14:37,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 308 states have (on average 1.3896103896103895) internal successors, (428), 308 states have internal predecessors, (428), 135 states have call successors, (135), 6 states have call predecessors, (135), 6 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-12-02 12:14:37,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 698 transitions. [2024-12-02 12:14:37,375 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 698 transitions. Word has length 305 [2024-12-02 12:14:37,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:14:37,376 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 698 transitions. [2024-12-02 12:14:37,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 3 states have call successors, (111), 2 states have call predecessors, (111), 4 states have return successors, (112), 3 states have call predecessors, (112), 3 states have call successors, (112) [2024-12-02 12:14:37,377 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 698 transitions. [2024-12-02 12:14:37,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-12-02 12:14:37,379 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:14:37,379 INFO L218 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:14:37,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 12:14:37,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:14:37,580 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:14:37,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:14:37,581 INFO L85 PathProgramCache]: Analyzing trace with hash -671248401, now seen corresponding path program 1 times [2024-12-02 12:14:37,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:14:37,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884340914] [2024-12-02 12:14:37,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:37,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:14:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:38,560 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-12-02 12:14:38,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:14:38,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884340914] [2024-12-02 12:14:38,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884340914] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:14:38,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:14:38,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:14:38,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270118809] [2024-12-02 12:14:38,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:14:38,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:14:38,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:14:38,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:14:38,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:14:38,562 INFO L87 Difference]: Start difference. First operand 450 states and 698 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2024-12-02 12:14:39,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:14:39,049 INFO L93 Difference]: Finished difference Result 883 states and 1368 transitions. [2024-12-02 12:14:39,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:14:39,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) Word has length 305 [2024-12-02 12:14:39,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:14:39,054 INFO L225 Difference]: With dead ends: 883 [2024-12-02 12:14:39,054 INFO L226 Difference]: Without dead ends: 536 [2024-12-02 12:14:39,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:14:39,056 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 301 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:14:39,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 910 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:14:39,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-12-02 12:14:39,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 437. [2024-12-02 12:14:39,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 294 states have (on average 1.3673469387755102) internal successors, (402), 294 states have internal predecessors, (402), 135 states have call successors, (135), 7 states have call predecessors, (135), 7 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-12-02 12:14:39,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 672 transitions. [2024-12-02 12:14:39,130 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 672 transitions. Word has length 305 [2024-12-02 12:14:39,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:14:39,131 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 672 transitions. [2024-12-02 12:14:39,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2024-12-02 12:14:39,131 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 672 transitions. [2024-12-02 12:14:39,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-12-02 12:14:39,133 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:14:39,134 INFO L218 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:14:39,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 12:14:39,134 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:14:39,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:14:39,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1284469905, now seen corresponding path program 1 times [2024-12-02 12:14:39,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:14:39,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298843662] [2024-12-02 12:14:39,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:39,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:14:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:40,149 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 6 proven. 126 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2024-12-02 12:14:40,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:14:40,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298843662] [2024-12-02 12:14:40,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298843662] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:14:40,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903783081] [2024-12-02 12:14:40,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:40,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:14:40,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:14:40,152 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:14:40,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 12:14:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:40,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 12:14:40,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:14:40,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 1892 proven. 48 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2024-12-02 12:14:40,634 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:14:40,916 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 84 proven. 48 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2024-12-02 12:14:40,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903783081] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:14:40,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:14:40,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-12-02 12:14:40,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230898852] [2024-12-02 12:14:40,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:14:40,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:14:40,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:14:40,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:14:40,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:14:40,919 INFO L87 Difference]: Start difference. First operand 437 states and 672 transitions. Second operand has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 9 states have internal predecessors, (143), 4 states have call successors, (106), 2 states have call predecessors, (106), 4 states have return successors, (107), 4 states have call predecessors, (107), 4 states have call successors, (107) [2024-12-02 12:14:41,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:14:41,613 INFO L93 Difference]: Finished difference Result 813 states and 1233 transitions. [2024-12-02 12:14:41,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:14:41,613 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 9 states have internal predecessors, (143), 4 states have call successors, (106), 2 states have call predecessors, (106), 4 states have return successors, (107), 4 states have call predecessors, (107), 4 states have call successors, (107) Word has length 305 [2024-12-02 12:14:41,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:14:41,617 INFO L225 Difference]: With dead ends: 813 [2024-12-02 12:14:41,617 INFO L226 Difference]: Without dead ends: 469 [2024-12-02 12:14:41,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 608 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2024-12-02 12:14:41,619 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 427 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:14:41,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 456 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:14:41,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-12-02 12:14:41,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 461. [2024-12-02 12:14:41,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 312 states have (on average 1.314102564102564) internal successors, (410), 312 states have internal predecessors, (410), 135 states have call successors, (135), 13 states have call predecessors, (135), 13 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-12-02 12:14:41,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 680 transitions. [2024-12-02 12:14:41,681 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 680 transitions. Word has length 305 [2024-12-02 12:14:41,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:14:41,681 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 680 transitions. [2024-12-02 12:14:41,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 9 states have internal predecessors, (143), 4 states have call successors, (106), 2 states have call predecessors, (106), 4 states have return successors, (107), 4 states have call predecessors, (107), 4 states have call successors, (107) [2024-12-02 12:14:41,682 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 680 transitions. [2024-12-02 12:14:41,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-12-02 12:14:41,684 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:14:41,684 INFO L218 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:14:41,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 12:14:41,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:14:41,884 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:14:41,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:14:41,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1378352090, now seen corresponding path program 1 times [2024-12-02 12:14:41,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:14:41,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031313560] [2024-12-02 12:14:41,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:41,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:14:41,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:42,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-12-02 12:14:42,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:14:42,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031313560] [2024-12-02 12:14:42,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031313560] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:14:42,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:14:42,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:14:42,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264030146] [2024-12-02 12:14:42,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:14:42,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:14:42,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:14:42,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:14:42,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:14:42,166 INFO L87 Difference]: Start difference. First operand 461 states and 680 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2024-12-02 12:14:42,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:14:42,613 INFO L93 Difference]: Finished difference Result 1263 states and 1881 transitions. [2024-12-02 12:14:42,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:14:42,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) Word has length 307 [2024-12-02 12:14:42,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:14:42,620 INFO L225 Difference]: With dead ends: 1263 [2024-12-02 12:14:42,620 INFO L226 Difference]: Without dead ends: 903 [2024-12-02 12:14:42,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:14:42,622 INFO L435 NwaCegarLoop]: 313 mSDtfsCounter, 284 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:14:42,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 983 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:14:42,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2024-12-02 12:14:42,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 805. [2024-12-02 12:14:42,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 558 states have (on average 1.3333333333333333) internal successors, (744), 558 states have internal predecessors, (744), 225 states have call successors, (225), 21 states have call predecessors, (225), 21 states have return successors, (225), 225 states have call predecessors, (225), 225 states have call successors, (225) [2024-12-02 12:14:42,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1194 transitions. [2024-12-02 12:14:42,724 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1194 transitions. Word has length 307 [2024-12-02 12:14:42,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:14:42,725 INFO L471 AbstractCegarLoop]: Abstraction has 805 states and 1194 transitions. [2024-12-02 12:14:42,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2024-12-02 12:14:42,725 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1194 transitions. [2024-12-02 12:14:42,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-12-02 12:14:42,728 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:14:42,728 INFO L218 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:14:42,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 12:14:42,728 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:14:42,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:14:42,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1731440472, now seen corresponding path program 1 times [2024-12-02 12:14:42,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:14:42,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775064298] [2024-12-02 12:14:42,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:42,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:14:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:43,665 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 75 proven. 57 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2024-12-02 12:14:43,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:14:43,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775064298] [2024-12-02 12:14:43,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775064298] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:14:43,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591703019] [2024-12-02 12:14:43,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:43,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:14:43,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:14:43,667 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:14:43,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 12:14:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:43,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 12:14:43,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:14:44,565 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 2069 proven. 90 refuted. 0 times theorem prover too weak. 1801 trivial. 0 not checked. [2024-12-02 12:14:44,565 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:14:45,171 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 168 proven. 93 refuted. 0 times theorem prover too weak. 3699 trivial. 0 not checked. [2024-12-02 12:14:45,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591703019] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:14:45,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:14:45,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 16 [2024-12-02 12:14:45,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842397443] [2024-12-02 12:14:45,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:14:45,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 12:14:45,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:14:45,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 12:14:45,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-12-02 12:14:45,174 INFO L87 Difference]: Start difference. First operand 805 states and 1194 transitions. Second operand has 16 states, 16 states have (on average 9.1875) internal successors, (147), 16 states have internal predecessors, (147), 4 states have call successors, (81), 3 states have call predecessors, (81), 7 states have return successors, (83), 4 states have call predecessors, (83), 4 states have call successors, (83) [2024-12-02 12:14:47,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:14:47,586 INFO L93 Difference]: Finished difference Result 2771 states and 3965 transitions. [2024-12-02 12:14:47,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-12-02 12:14:47,586 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.1875) internal successors, (147), 16 states have internal predecessors, (147), 4 states have call successors, (81), 3 states have call predecessors, (81), 7 states have return successors, (83), 4 states have call predecessors, (83), 4 states have call successors, (83) Word has length 307 [2024-12-02 12:14:47,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:14:47,596 INFO L225 Difference]: With dead ends: 2771 [2024-12-02 12:14:47,596 INFO L226 Difference]: Without dead ends: 2081 [2024-12-02 12:14:47,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 684 GetRequests, 612 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1631 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1154, Invalid=3958, Unknown=0, NotChecked=0, Total=5112 [2024-12-02 12:14:47,600 INFO L435 NwaCegarLoop]: 315 mSDtfsCounter, 880 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 1471 SdHoareTripleChecker+Invalid, 1666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:14:47,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 1471 Invalid, 1666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 1222 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 12:14:47,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2024-12-02 12:14:47,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 951. [2024-12-02 12:14:47,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 684 states have (on average 1.260233918128655) internal successors, (862), 684 states have internal predecessors, (862), 225 states have call successors, (225), 41 states have call predecessors, (225), 41 states have return successors, (225), 225 states have call predecessors, (225), 225 states have call successors, (225) [2024-12-02 12:14:47,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1312 transitions. [2024-12-02 12:14:47,742 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1312 transitions. Word has length 307 [2024-12-02 12:14:47,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:14:47,743 INFO L471 AbstractCegarLoop]: Abstraction has 951 states and 1312 transitions. [2024-12-02 12:14:47,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.1875) internal successors, (147), 16 states have internal predecessors, (147), 4 states have call successors, (81), 3 states have call predecessors, (81), 7 states have return successors, (83), 4 states have call predecessors, (83), 4 states have call successors, (83) [2024-12-02 12:14:47,743 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1312 transitions. [2024-12-02 12:14:47,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-12-02 12:14:47,745 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:14:47,746 INFO L218 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:14:47,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 12:14:47,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:14:47,946 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:14:47,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:14:47,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1224860739, now seen corresponding path program 1 times [2024-12-02 12:14:47,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:14:47,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282439325] [2024-12-02 12:14:47,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:47,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:14:48,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:48,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 81 proven. 51 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2024-12-02 12:14:48,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:14:48,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282439325] [2024-12-02 12:14:48,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282439325] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:14:48,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013133515] [2024-12-02 12:14:48,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:48,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:14:48,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:14:48,767 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:14:48,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 12:14:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:49,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 12:14:49,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:14:49,585 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 1934 proven. 51 refuted. 0 times theorem prover too weak. 1975 trivial. 0 not checked. [2024-12-02 12:14:49,585 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:14:49,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 81 proven. 51 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2024-12-02 12:14:50,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013133515] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:14:50,000 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:14:50,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 7] total 16 [2024-12-02 12:14:50,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746443877] [2024-12-02 12:14:50,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:14:50,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 12:14:50,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:14:50,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 12:14:50,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-12-02 12:14:50,003 INFO L87 Difference]: Start difference. First operand 951 states and 1312 transitions. Second operand has 16 states, 16 states have (on average 10.375) internal successors, (166), 16 states have internal predecessors, (166), 5 states have call successors, (107), 3 states have call predecessors, (107), 6 states have return successors, (108), 5 states have call predecessors, (108), 5 states have call successors, (108) [2024-12-02 12:14:50,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:14:50,877 INFO L93 Difference]: Finished difference Result 1898 states and 2598 transitions. [2024-12-02 12:14:50,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 12:14:50,878 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.375) internal successors, (166), 16 states have internal predecessors, (166), 5 states have call successors, (107), 3 states have call predecessors, (107), 6 states have return successors, (108), 5 states have call predecessors, (108), 5 states have call successors, (108) Word has length 309 [2024-12-02 12:14:50,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:14:50,882 INFO L225 Difference]: With dead ends: 1898 [2024-12-02 12:14:50,882 INFO L226 Difference]: Without dead ends: 1071 [2024-12-02 12:14:50,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 636 GetRequests, 608 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=614, Unknown=0, NotChecked=0, Total=812 [2024-12-02 12:14:50,884 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 804 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:14:50,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 1381 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:14:50,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2024-12-02 12:14:50,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 869. [2024-12-02 12:14:50,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 602 states have (on average 1.2142857142857142) internal successors, (731), 602 states have internal predecessors, (731), 225 states have call successors, (225), 41 states have call predecessors, (225), 41 states have return successors, (225), 225 states have call predecessors, (225), 225 states have call successors, (225) [2024-12-02 12:14:50,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1181 transitions. [2024-12-02 12:14:50,973 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1181 transitions. Word has length 309 [2024-12-02 12:14:50,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:14:50,974 INFO L471 AbstractCegarLoop]: Abstraction has 869 states and 1181 transitions. [2024-12-02 12:14:50,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.375) internal successors, (166), 16 states have internal predecessors, (166), 5 states have call successors, (107), 3 states have call predecessors, (107), 6 states have return successors, (108), 5 states have call predecessors, (108), 5 states have call successors, (108) [2024-12-02 12:14:50,974 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1181 transitions. [2024-12-02 12:14:50,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-12-02 12:14:50,975 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:14:50,975 INFO L218 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:14:50,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 12:14:51,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 12:14:51,176 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:14:51,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:14:51,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1113161262, now seen corresponding path program 1 times [2024-12-02 12:14:51,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:14:51,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985295537] [2024-12-02 12:14:51,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:51,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:14:51,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:55,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2024-12-02 12:14:55,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:14:55,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985295537] [2024-12-02 12:14:55,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985295537] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:14:55,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652457545] [2024-12-02 12:14:55,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:14:55,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:14:55,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:14:55,388 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:14:55,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 12:14:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:14:55,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 12:14:55,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:14:56,823 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 1359 proven. 204 refuted. 0 times theorem prover too weak. 2397 trivial. 0 not checked. [2024-12-02 12:14:56,823 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:14:57,812 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 27 proven. 105 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2024-12-02 12:14:57,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652457545] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:14:57,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:14:57,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 9] total 28 [2024-12-02 12:14:57,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353240982] [2024-12-02 12:14:57,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:14:57,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 12:14:57,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:14:57,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 12:14:57,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2024-12-02 12:14:57,815 INFO L87 Difference]: Start difference. First operand 869 states and 1181 transitions. Second operand has 28 states, 28 states have (on average 7.964285714285714) internal successors, (223), 27 states have internal predecessors, (223), 5 states have call successors, (124), 3 states have call predecessors, (124), 5 states have return successors, (126), 5 states have call predecessors, (126), 5 states have call successors, (126) [2024-12-02 12:15:06,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:15:06,486 INFO L93 Difference]: Finished difference Result 3741 states and 4964 transitions. [2024-12-02 12:15:06,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-12-02 12:15:06,487 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 7.964285714285714) internal successors, (223), 27 states have internal predecessors, (223), 5 states have call successors, (124), 3 states have call predecessors, (124), 5 states have return successors, (126), 5 states have call predecessors, (126), 5 states have call successors, (126) Word has length 310 [2024-12-02 12:15:06,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:15:06,494 INFO L225 Difference]: With dead ends: 3741 [2024-12-02 12:15:06,494 INFO L226 Difference]: Without dead ends: 3003 [2024-12-02 12:15:06,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 614 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1900 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1224, Invalid=5256, Unknown=0, NotChecked=0, Total=6480 [2024-12-02 12:15:06,497 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 2454 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 2921 mSolverCounterSat, 656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2456 SdHoareTripleChecker+Valid, 2158 SdHoareTripleChecker+Invalid, 3577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 656 IncrementalHoareTripleChecker+Valid, 2921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:15:06,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2456 Valid, 2158 Invalid, 3577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [656 Valid, 2921 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-12-02 12:15:06,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3003 states. [2024-12-02 12:15:06,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3003 to 2453. [2024-12-02 12:15:06,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2453 states, 1871 states have (on average 1.2506680919294495) internal successors, (2340), 1879 states have internal predecessors, (2340), 457 states have call successors, (457), 124 states have call predecessors, (457), 124 states have return successors, (457), 449 states have call predecessors, (457), 457 states have call successors, (457) [2024-12-02 12:15:06,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2453 states to 2453 states and 3254 transitions. [2024-12-02 12:15:06,914 INFO L78 Accepts]: Start accepts. Automaton has 2453 states and 3254 transitions. Word has length 310 [2024-12-02 12:15:06,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:15:06,915 INFO L471 AbstractCegarLoop]: Abstraction has 2453 states and 3254 transitions. [2024-12-02 12:15:06,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.964285714285714) internal successors, (223), 27 states have internal predecessors, (223), 5 states have call successors, (124), 3 states have call predecessors, (124), 5 states have return successors, (126), 5 states have call predecessors, (126), 5 states have call successors, (126) [2024-12-02 12:15:06,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2453 states and 3254 transitions. [2024-12-02 12:15:06,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-12-02 12:15:06,918 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:15:06,918 INFO L218 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:15:06,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 12:15:07,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:15:07,119 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:15:07,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:15:07,120 INFO L85 PathProgramCache]: Analyzing trace with hash -475186640, now seen corresponding path program 1 times [2024-12-02 12:15:07,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:15:07,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140438237] [2024-12-02 12:15:07,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:15:07,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:15:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:15:18,784 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 150 proven. 342 refuted. 0 times theorem prover too weak. 3468 trivial. 0 not checked. [2024-12-02 12:15:18,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:15:18,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140438237] [2024-12-02 12:15:18,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140438237] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:15:18,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632992955] [2024-12-02 12:15:18,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:15:18,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:15:18,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:15:18,786 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:15:18,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ecbc91-d28d-47bc-851a-9219d0ea6b3f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 12:15:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:15:19,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-12-02 12:15:19,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:15:24,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 906 proven. 666 refuted. 0 times theorem prover too weak. 2388 trivial. 0 not checked. [2024-12-02 12:15:24,443 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:15:41,769 WARN L286 SmtUtils]: Spent 16.05s on a formula simplification. DAG size of input: 50 DAG size of output: 42 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 12:15:53,817 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:16:09,876 WARN L286 SmtUtils]: Spent 12.01s 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) [2024-12-02 12:16:25,956 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:16:42,049 WARN L286 SmtUtils]: Spent 12.04s 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) [2024-12-02 12:16:58,141 WARN L286 SmtUtils]: Spent 12.03s 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) [2024-12-02 12:17:14,231 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:17:30,311 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:17:46,398 WARN L286 SmtUtils]: Spent 12.03s 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) [2024-12-02 12:18:02,478 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:18:18,546 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:18:34,631 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:18:50,712 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:19:06,794 WARN L286 SmtUtils]: Spent 12.01s 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) [2024-12-02 12:19:22,870 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:19:38,952 WARN L286 SmtUtils]: Spent 12.01s 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) [2024-12-02 12:19:55,024 WARN L286 SmtUtils]: Spent 12.01s 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) [2024-12-02 12:20:11,107 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:20:27,180 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:20:43,253 WARN L286 SmtUtils]: Spent 12.01s 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) [2024-12-02 12:20:59,325 WARN L286 SmtUtils]: Spent 12.01s 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) [2024-12-02 12:21:15,441 WARN L286 SmtUtils]: Spent 12.05s 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) [2024-12-02 12:21:31,536 WARN L286 SmtUtils]: Spent 12.03s 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) [2024-12-02 12:21:47,606 WARN L286 SmtUtils]: Spent 12.01s 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) [2024-12-02 12:22:03,686 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:22:19,767 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:22:35,855 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:22:51,935 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:23:08,018 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:23:24,113 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:23:40,224 WARN L286 SmtUtils]: Spent 12.04s 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) [2024-12-02 12:23:56,336 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:24:12,447 WARN L286 SmtUtils]: Spent 12.04s 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) [2024-12-02 12:24:28,558 WARN L286 SmtUtils]: Spent 12.04s 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) [2024-12-02 12:24:44,689 WARN L286 SmtUtils]: Spent 12.06s 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) [2024-12-02 12:25:00,779 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:25:16,869 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:25:32,959 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:25:49,056 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:26:05,194 WARN L286 SmtUtils]: Spent 12.05s 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) [2024-12-02 12:26:21,311 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:26:37,398 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:26:53,485 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:27:09,571 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:27:25,664 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:27:41,750 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:27:57,827 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:28:13,952 WARN L286 SmtUtils]: Spent 12.06s 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) [2024-12-02 12:28:30,041 WARN L286 SmtUtils]: Spent 12.03s 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) [2024-12-02 12:28:46,113 WARN L286 SmtUtils]: Spent 12.02s 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) [2024-12-02 12:29:02,185 WARN L286 SmtUtils]: Spent 12.02s 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)