./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_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/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_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB --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 [2024-11-27 23:22:46,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:22:46,907 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:22:46,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:22:46,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:22:46,949 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:22:46,950 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:22:46,950 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:22:46,951 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:22:46,951 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:22:46,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:22:46,951 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:22:46,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:22:46,952 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:22:46,952 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:22:46,952 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:22:46,952 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:22:46,953 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:22:46,953 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:22:46,953 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:22:46,953 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:22:46,953 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:22:46,954 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:22:46,954 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:22:46,954 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:22:46,954 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:22:46,954 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:22:46,954 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:22:46,955 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:22:46,955 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:22:46,955 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:22:46,955 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:22:46,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:22:46,956 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:22:46,956 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:22:46,956 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:22:46,956 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:22:46,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:22:46,956 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:22:46,957 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:22:46,957 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:22:46,957 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:22:46,957 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:22:46,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:22:46,957 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:22:46,958 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:22:46,958 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:22:46,958 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:22:46,958 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_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB 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 [2024-11-27 23:22:47,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:22:47,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:22:47,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:22:47,332 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:22:47,333 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:22:47,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-53.i [2024-11-27 23:22:51,094 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/data/79a84a1dc/a6cfa9c6916046508d1c546cfa841258/FLAG866cc2b78 [2024-11-27 23:22:51,486 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:22:51,487 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-53.i [2024-11-27 23:22:51,504 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/data/79a84a1dc/a6cfa9c6916046508d1c546cfa841258/FLAG866cc2b78 [2024-11-27 23:22:51,672 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/data/79a84a1dc/a6cfa9c6916046508d1c546cfa841258 [2024-11-27 23:22:51,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:22:51,677 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:22:51,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:22:51,681 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:22:51,686 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:22:51,687 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:22:51" (1/1) ... [2024-11-27 23:22:51,690 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e5998c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:51, skipping insertion in model container [2024-11-27 23:22:51,690 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:22:51" (1/1) ... [2024-11-27 23:22:51,749 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:22:51,916 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_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-53.i[916,929] [2024-11-27 23:22:52,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:22:52,153 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:22:52,164 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_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-53.i[916,929] [2024-11-27 23:22:52,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:22:52,288 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:22:52,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:52 WrapperNode [2024-11-27 23:22:52,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:22:52,290 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:22:52,290 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:22:52,290 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:22:52,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:52" (1/1) ... [2024-11-27 23:22:52,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:52" (1/1) ... [2024-11-27 23:22:52,431 INFO L138 Inliner]: procedures = 26, calls = 58, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 411 [2024-11-27 23:22:52,431 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:22:52,432 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:22:52,432 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:22:52,433 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:22:52,444 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:52" (1/1) ... [2024-11-27 23:22:52,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:52" (1/1) ... [2024-11-27 23:22:52,455 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:52" (1/1) ... [2024-11-27 23:22:52,530 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 23:22:52,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:52" (1/1) ... [2024-11-27 23:22:52,530 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:52" (1/1) ... [2024-11-27 23:22:52,584 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:52" (1/1) ... [2024-11-27 23:22:52,589 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:52" (1/1) ... [2024-11-27 23:22:52,595 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:52" (1/1) ... [2024-11-27 23:22:52,603 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:52" (1/1) ... [2024-11-27 23:22:52,608 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:52" (1/1) ... [2024-11-27 23:22:52,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:22:52,623 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:22:52,623 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:22:52,623 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:22:52,624 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:52" (1/1) ... [2024-11-27 23:22:52,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:22:52,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:52,667 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:22:52,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:22:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:22:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 23:22:52,712 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 23:22:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:22:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:22:52,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:22:52,915 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:22:52,917 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:22:54,165 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-27 23:22:54,165 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:22:54,181 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:22:54,181 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:22:54,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:22:54 BoogieIcfgContainer [2024-11-27 23:22:54,182 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:22:54,185 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:22:54,185 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:22:54,192 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:22:54,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:22:51" (1/3) ... [2024-11-27 23:22:54,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204754da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:22:54, skipping insertion in model container [2024-11-27 23:22:54,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:52" (2/3) ... [2024-11-27 23:22:54,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204754da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:22:54, skipping insertion in model container [2024-11-27 23:22:54,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:22:54" (3/3) ... [2024-11-27 23:22:54,198 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-53.i [2024-11-27 23:22:54,219 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:22:54,222 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. [2024-11-27 23:22:54,312 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:22:54,331 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;@4a0ac959, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:22:54,331 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:22:54,338 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) [2024-11-27 23:22:54,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-11-27 23:22:54,368 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:54,369 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] [2024-11-27 23:22:54,370 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:54,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:54,377 INFO L85 PathProgramCache]: Analyzing trace with hash 178338985, now seen corresponding path program 1 times [2024-11-27 23:22:54,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:54,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145496111] [2024-11-27 23:22:54,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:54,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:55,306 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 3872 trivial. 0 not checked. [2024-11-27 23:22:55,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:55,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145496111] [2024-11-27 23:22:55,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145496111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:22:55,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623604196] [2024-11-27 23:22:55,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:55,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:55,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:55,318 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:55,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:22:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:55,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:22:55,830 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:55,909 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 3872 trivial. 0 not checked. [2024-11-27 23:22:55,913 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:22:55,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623604196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:55,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:22:55,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 23:22:55,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366881172] [2024-11-27 23:22:55,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:55,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:22:55,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:55,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:22:55,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:22:55,964 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) [2024-11-27 23:22:56,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:56,030 INFO L93 Difference]: Finished difference Result 329 states and 573 transitions. [2024-11-27 23:22:56,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:22:56,035 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 [2024-11-27 23:22:56,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:56,048 INFO L225 Difference]: With dead ends: 329 [2024-11-27 23:22:56,048 INFO L226 Difference]: Without dead ends: 163 [2024-11-27 23:22:56,057 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 [2024-11-27 23:22:56,062 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 [2024-11-27 23:22:56,063 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] [2024-11-27 23:22:56,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-27 23:22:56,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2024-11-27 23:22:56,132 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) [2024-11-27 23:22:56,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 257 transitions. [2024-11-27 23:22:56,143 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 257 transitions. Word has length 305 [2024-11-27 23:22:56,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:56,144 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 257 transitions. [2024-11-27 23:22:56,144 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) [2024-11-27 23:22:56,144 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 257 transitions. [2024-11-27 23:22:56,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-11-27 23:22:56,152 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:56,153 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] [2024-11-27 23:22:56,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:22:56,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 23:22:56,356 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:56,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:56,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1620621355, now seen corresponding path program 1 times [2024-11-27 23:22:56,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:56,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891606422] [2024-11-27 23:22:56,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:56,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:57,504 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-11-27 23:22:57,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:57,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891606422] [2024-11-27 23:22:57,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891606422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:57,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:22:57,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:22:57,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844106457] [2024-11-27 23:22:57,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:57,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:22:57,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:57,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:22:57,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:22:57,516 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) [2024-11-27 23:22:58,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:58,177 INFO L93 Difference]: Finished difference Result 441 states and 692 transitions. [2024-11-27 23:22:58,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:22:58,178 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 [2024-11-27 23:22:58,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:58,184 INFO L225 Difference]: With dead ends: 441 [2024-11-27 23:22:58,187 INFO L226 Difference]: Without dead ends: 281 [2024-11-27 23:22:58,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:22:58,193 INFO L435 NwaCegarLoop]: 423 mSDtfsCounter, 179 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:58,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1295 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:22:58,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-27 23:22:58,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 165. [2024-11-27 23:22:58,238 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) [2024-11-27 23:22:58,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 259 transitions. [2024-11-27 23:22:58,241 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 259 transitions. Word has length 305 [2024-11-27 23:22:58,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:58,244 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 259 transitions. [2024-11-27 23:22:58,245 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) [2024-11-27 23:22:58,245 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 259 transitions. [2024-11-27 23:22:58,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-11-27 23:22:58,255 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:58,255 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] [2024-11-27 23:22:58,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:22:58,256 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:58,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:58,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1973281363, now seen corresponding path program 1 times [2024-11-27 23:22:58,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:58,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625718111] [2024-11-27 23:22:58,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:58,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:59,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-11-27 23:22:59,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:59,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625718111] [2024-11-27 23:22:59,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625718111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:59,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:22:59,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:22:59,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303867304] [2024-11-27 23:22:59,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:59,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:22:59,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:59,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:22:59,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:22:59,771 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) [2024-11-27 23:23:00,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:23:00,211 INFO L93 Difference]: Finished difference Result 523 states and 820 transitions. [2024-11-27 23:23:00,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:23:00,212 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 [2024-11-27 23:23:00,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:23:00,218 INFO L225 Difference]: With dead ends: 523 [2024-11-27 23:23:00,220 INFO L226 Difference]: Without dead ends: 361 [2024-11-27 23:23:00,221 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 [2024-11-27 23:23:00,223 INFO L435 NwaCegarLoop]: 298 mSDtfsCounter, 289 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:23:00,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 796 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:23:00,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-27 23:23:00,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 325. [2024-11-27 23:23:00,307 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) [2024-11-27 23:23:00,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 513 transitions. [2024-11-27 23:23:00,320 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 513 transitions. Word has length 305 [2024-11-27 23:23:00,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:23:00,321 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 513 transitions. [2024-11-27 23:23:00,321 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) [2024-11-27 23:23:00,321 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 513 transitions. [2024-11-27 23:23:00,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-11-27 23:23:00,327 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:23:00,327 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] [2024-11-27 23:23:00,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:23:00,328 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:23:00,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:23:00,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1549634641, now seen corresponding path program 1 times [2024-11-27 23:23:00,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:23:00,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517113711] [2024-11-27 23:23:00,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:00,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:23:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:03,239 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-11-27 23:23:03,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:23:03,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517113711] [2024-11-27 23:23:03,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517113711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:23:03,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:23:03,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:23:03,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24350487] [2024-11-27 23:23:03,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:23:03,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:23:03,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:23:03,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:23:03,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:23:03,244 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) [2024-11-27 23:23:04,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:23:04,286 INFO L93 Difference]: Finished difference Result 984 states and 1551 transitions. [2024-11-27 23:23:04,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:23:04,287 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 [2024-11-27 23:23:04,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:23:04,294 INFO L225 Difference]: With dead ends: 984 [2024-11-27 23:23:04,294 INFO L226 Difference]: Without dead ends: 662 [2024-11-27 23:23:04,296 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 [2024-11-27 23:23:04,297 INFO L435 NwaCegarLoop]: 291 mSDtfsCounter, 405 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:23:04,298 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 1115 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:23:04,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-27 23:23:04,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 438. [2024-11-27 23:23:04,418 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) [2024-11-27 23:23:04,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 692 transitions. [2024-11-27 23:23:04,426 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 692 transitions. Word has length 305 [2024-11-27 23:23:04,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:23:04,429 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 692 transitions. [2024-11-27 23:23:04,430 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) [2024-11-27 23:23:04,430 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 692 transitions. [2024-11-27 23:23:04,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-11-27 23:23:04,436 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:23:04,436 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] [2024-11-27 23:23:04,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:23:04,436 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:23:04,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:23:04,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1330779923, now seen corresponding path program 1 times [2024-11-27 23:23:04,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:23:04,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884496085] [2024-11-27 23:23:04,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:04,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:23:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:07,197 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 33 proven. 99 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2024-11-27 23:23:07,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:23:07,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884496085] [2024-11-27 23:23:07,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884496085] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:23:07,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261288736] [2024-11-27 23:23:07,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:07,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:23:07,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:23:07,202 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:23:07,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:23:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:07,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:23:07,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:23:08,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 1518 proven. 99 refuted. 0 times theorem prover too weak. 2343 trivial. 0 not checked. [2024-11-27 23:23:08,585 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:23:09,324 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 33 proven. 99 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2024-11-27 23:23:09,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261288736] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:23:09,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:23:09,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-27 23:23:09,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629689017] [2024-11-27 23:23:09,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:23:09,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:23:09,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:23:09,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:23:09,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:23:09,329 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) [2024-11-27 23:23:09,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:23:09,951 INFO L93 Difference]: Finished difference Result 796 states and 1247 transitions. [2024-11-27 23:23:09,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:23:09,953 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 [2024-11-27 23:23:09,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:23:09,959 INFO L225 Difference]: With dead ends: 796 [2024-11-27 23:23:09,959 INFO L226 Difference]: Without dead ends: 456 [2024-11-27 23:23:09,961 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 [2024-11-27 23:23:09,962 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 399 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:23:09,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 508 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:23:09,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-11-27 23:23:10,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 450. [2024-11-27 23:23:10,075 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) [2024-11-27 23:23:10,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 698 transitions. [2024-11-27 23:23:10,083 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 698 transitions. Word has length 305 [2024-11-27 23:23:10,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:23:10,084 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 698 transitions. [2024-11-27 23:23:10,084 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) [2024-11-27 23:23:10,085 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 698 transitions. [2024-11-27 23:23:10,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-11-27 23:23:10,097 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:23:10,097 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] [2024-11-27 23:23:10,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:23:10,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:23:10,302 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:23:10,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:23:10,302 INFO L85 PathProgramCache]: Analyzing trace with hash -671248401, now seen corresponding path program 1 times [2024-11-27 23:23:10,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:23:10,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856586961] [2024-11-27 23:23:10,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:10,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:23:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:11,683 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-11-27 23:23:11,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:23:11,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856586961] [2024-11-27 23:23:11,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856586961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:23:11,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:23:11,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:23:11,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343490629] [2024-11-27 23:23:11,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:23:11,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:23:11,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:23:11,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:23:11,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:23:11,687 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) [2024-11-27 23:23:12,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:23:12,435 INFO L93 Difference]: Finished difference Result 883 states and 1368 transitions. [2024-11-27 23:23:12,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:23:12,436 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 [2024-11-27 23:23:12,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:23:12,443 INFO L225 Difference]: With dead ends: 883 [2024-11-27 23:23:12,443 INFO L226 Difference]: Without dead ends: 536 [2024-11-27 23:23:12,445 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 [2024-11-27 23:23:12,446 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 301 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:23:12,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 910 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:23:12,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-27 23:23:12,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 437. [2024-11-27 23:23:12,565 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) [2024-11-27 23:23:12,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 672 transitions. [2024-11-27 23:23:12,570 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 672 transitions. Word has length 305 [2024-11-27 23:23:12,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:23:12,571 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 672 transitions. [2024-11-27 23:23:12,572 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) [2024-11-27 23:23:12,572 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 672 transitions. [2024-11-27 23:23:12,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-11-27 23:23:12,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:23:12,578 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] [2024-11-27 23:23:12,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:23:12,579 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:23:12,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:23:12,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1284469905, now seen corresponding path program 1 times [2024-11-27 23:23:12,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:23:12,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104978070] [2024-11-27 23:23:12,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:12,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:23:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:14,401 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 6 proven. 126 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2024-11-27 23:23:14,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:23:14,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104978070] [2024-11-27 23:23:14,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104978070] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:23:14,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746173855] [2024-11-27 23:23:14,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:14,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:23:14,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:23:14,405 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:23:14,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:23:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:14,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:23:14,827 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:23:15,198 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 1892 proven. 48 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2024-11-27 23:23:15,199 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:23:15,684 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 84 proven. 48 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2024-11-27 23:23:15,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746173855] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:23:15,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:23:15,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-27 23:23:15,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075135298] [2024-11-27 23:23:15,685 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:23:15,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:23:15,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:23:15,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:23:15,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:23:15,688 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) [2024-11-27 23:23:16,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:23:16,785 INFO L93 Difference]: Finished difference Result 813 states and 1233 transitions. [2024-11-27 23:23:16,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:23:16,786 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 [2024-11-27 23:23:16,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:23:16,792 INFO L225 Difference]: With dead ends: 813 [2024-11-27 23:23:16,792 INFO L226 Difference]: Without dead ends: 469 [2024-11-27 23:23:16,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 608 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:23:16,794 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 427 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:23:16,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 456 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:23:16,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-27 23:23:16,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 461. [2024-11-27 23:23:16,925 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) [2024-11-27 23:23:16,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 680 transitions. [2024-11-27 23:23:16,931 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 680 transitions. Word has length 305 [2024-11-27 23:23:16,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:23:16,932 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 680 transitions. [2024-11-27 23:23:16,933 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) [2024-11-27 23:23:16,933 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 680 transitions. [2024-11-27 23:23:16,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-11-27 23:23:16,940 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:23:16,941 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] [2024-11-27 23:23:16,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 23:23:17,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:23:17,142 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:23:17,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:23:17,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1378352090, now seen corresponding path program 1 times [2024-11-27 23:23:17,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:23:17,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541751958] [2024-11-27 23:23:17,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:17,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:23:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:17,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-11-27 23:23:17,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:23:17,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541751958] [2024-11-27 23:23:17,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541751958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:23:17,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:23:17,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:23:17,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013736611] [2024-11-27 23:23:17,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:23:17,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:23:17,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:23:17,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:23:17,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:23:17,857 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) [2024-11-27 23:23:18,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:23:18,584 INFO L93 Difference]: Finished difference Result 1263 states and 1881 transitions. [2024-11-27 23:23:18,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:23:18,586 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 [2024-11-27 23:23:18,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:23:18,595 INFO L225 Difference]: With dead ends: 1263 [2024-11-27 23:23:18,595 INFO L226 Difference]: Without dead ends: 903 [2024-11-27 23:23:18,597 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 [2024-11-27 23:23:18,598 INFO L435 NwaCegarLoop]: 313 mSDtfsCounter, 284 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:23:18,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 983 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:23:18,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2024-11-27 23:23:18,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 805. [2024-11-27 23:23:18,772 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) [2024-11-27 23:23:18,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1194 transitions. [2024-11-27 23:23:18,782 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1194 transitions. Word has length 307 [2024-11-27 23:23:18,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:23:18,784 INFO L471 AbstractCegarLoop]: Abstraction has 805 states and 1194 transitions. [2024-11-27 23:23:18,785 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) [2024-11-27 23:23:18,785 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1194 transitions. [2024-11-27 23:23:18,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-11-27 23:23:18,793 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:23:18,793 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] [2024-11-27 23:23:18,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:23:18,794 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:23:18,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:23:18,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1731440472, now seen corresponding path program 1 times [2024-11-27 23:23:18,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:23:18,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523769023] [2024-11-27 23:23:18,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:18,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:23:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:20,234 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 75 proven. 57 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2024-11-27 23:23:20,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:23:20,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523769023] [2024-11-27 23:23:20,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523769023] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:23:20,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727323173] [2024-11-27 23:23:20,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:20,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:23:20,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:23:20,238 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:23:20,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:23:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:20,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 23:23:20,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:23:21,742 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 2069 proven. 90 refuted. 0 times theorem prover too weak. 1801 trivial. 0 not checked. [2024-11-27 23:23:21,742 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:23:22,775 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 168 proven. 93 refuted. 0 times theorem prover too weak. 3699 trivial. 0 not checked. [2024-11-27 23:23:22,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727323173] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:23:22,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:23:22,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 16 [2024-11-27 23:23:22,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679933585] [2024-11-27 23:23:22,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:23:22,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:23:22,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:23:22,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:23:22,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:23:22,786 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) [2024-11-27 23:23:26,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:23:26,843 INFO L93 Difference]: Finished difference Result 2771 states and 3965 transitions. [2024-11-27 23:23:26,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-27 23:23:26,844 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 [2024-11-27 23:23:26,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:23:26,861 INFO L225 Difference]: With dead ends: 2771 [2024-11-27 23:23:26,861 INFO L226 Difference]: Without dead ends: 2081 [2024-11-27 23:23:26,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 684 GetRequests, 612 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1631 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1154, Invalid=3958, Unknown=0, NotChecked=0, Total=5112 [2024-11-27 23:23:26,867 INFO L435 NwaCegarLoop]: 315 mSDtfsCounter, 880 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s 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, 2.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:23:26,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 1471 Invalid, 1666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 1222 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-27 23:23:26,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2024-11-27 23:23:27,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 951. [2024-11-27 23:23:27,141 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) [2024-11-27 23:23:27,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1312 transitions. [2024-11-27 23:23:27,152 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1312 transitions. Word has length 307 [2024-11-27 23:23:27,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:23:27,153 INFO L471 AbstractCegarLoop]: Abstraction has 951 states and 1312 transitions. [2024-11-27 23:23:27,154 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) [2024-11-27 23:23:27,154 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1312 transitions. [2024-11-27 23:23:27,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-11-27 23:23:27,160 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:23:27,160 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] [2024-11-27 23:23:27,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 23:23:27,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:23:27,365 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:23:27,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:23:27,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1224860739, now seen corresponding path program 1 times [2024-11-27 23:23:27,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:23:27,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766204846] [2024-11-27 23:23:27,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:27,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:23:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:28,594 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 81 proven. 51 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2024-11-27 23:23:28,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:23:28,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766204846] [2024-11-27 23:23:28,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766204846] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:23:28,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875813572] [2024-11-27 23:23:28,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:28,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:23:28,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:23:28,597 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:23:28,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:23:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:28,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 23:23:28,965 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:23:30,038 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 1934 proven. 51 refuted. 0 times theorem prover too weak. 1975 trivial. 0 not checked. [2024-11-27 23:23:30,039 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:23:30,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 81 proven. 51 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2024-11-27 23:23:30,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875813572] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:23:30,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:23:30,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 7] total 16 [2024-11-27 23:23:30,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272146780] [2024-11-27 23:23:30,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:23:30,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:23:30,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:23:30,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:23:30,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:23:30,770 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) [2024-11-27 23:23:32,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:23:32,413 INFO L93 Difference]: Finished difference Result 1898 states and 2598 transitions. [2024-11-27 23:23:32,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 23:23:32,414 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 [2024-11-27 23:23:32,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:23:32,424 INFO L225 Difference]: With dead ends: 1898 [2024-11-27 23:23:32,424 INFO L226 Difference]: Without dead ends: 1071 [2024-11-27 23:23:32,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 636 GetRequests, 608 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=198, Invalid=614, Unknown=0, NotChecked=0, Total=812 [2024-11-27 23:23:32,428 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 804 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:23:32,429 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 1381 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 23:23:32,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2024-11-27 23:23:32,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 869. [2024-11-27 23:23:32,626 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) [2024-11-27 23:23:32,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1181 transitions. [2024-11-27 23:23:32,636 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1181 transitions. Word has length 309 [2024-11-27 23:23:32,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:23:32,637 INFO L471 AbstractCegarLoop]: Abstraction has 869 states and 1181 transitions. [2024-11-27 23:23:32,638 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) [2024-11-27 23:23:32,638 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1181 transitions. [2024-11-27 23:23:32,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-11-27 23:23:32,643 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:23:32,644 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] [2024-11-27 23:23:32,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 23:23:32,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-27 23:23:32,848 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:23:32,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:23:32,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1113161262, now seen corresponding path program 1 times [2024-11-27 23:23:32,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:23:32,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419265671] [2024-11-27 23:23:32,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:32,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:23:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:39,177 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2024-11-27 23:23:39,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:23:39,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419265671] [2024-11-27 23:23:39,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419265671] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:23:39,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269498307] [2024-11-27 23:23:39,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:39,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:23:39,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:23:39,179 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:23:39,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:23:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:39,560 INFO L256 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 23:23:39,576 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:23:41,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 1359 proven. 204 refuted. 0 times theorem prover too weak. 2397 trivial. 0 not checked. [2024-11-27 23:23:41,620 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:23:43,267 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 27 proven. 105 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2024-11-27 23:23:43,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269498307] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:23:43,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:23:43,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 9] total 28 [2024-11-27 23:23:43,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360082428] [2024-11-27 23:23:43,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:23:43,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-27 23:23:43,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:23:43,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-27 23:23:43,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2024-11-27 23:23:43,272 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) [2024-11-27 23:23:56,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:23:56,197 INFO L93 Difference]: Finished difference Result 3741 states and 4964 transitions. [2024-11-27 23:23:56,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-27 23:23:56,198 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 [2024-11-27 23:23:56,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:23:56,214 INFO L225 Difference]: With dead ends: 3741 [2024-11-27 23:23:56,215 INFO L226 Difference]: Without dead ends: 3003 [2024-11-27 23:23:56,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 614 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1900 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=1224, Invalid=5256, Unknown=0, NotChecked=0, Total=6480 [2024-11-27 23:23:56,221 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 2454 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 2921 mSolverCounterSat, 656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s 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, 7.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:23:56,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2456 Valid, 2158 Invalid, 3577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [656 Valid, 2921 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-27 23:23:56,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3003 states. [2024-11-27 23:23:56,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3003 to 2453. [2024-11-27 23:23:56,812 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) [2024-11-27 23:23:56,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2453 states to 2453 states and 3254 transitions. [2024-11-27 23:23:56,836 INFO L78 Accepts]: Start accepts. Automaton has 2453 states and 3254 transitions. Word has length 310 [2024-11-27 23:23:56,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:23:56,837 INFO L471 AbstractCegarLoop]: Abstraction has 2453 states and 3254 transitions. [2024-11-27 23:23:56,837 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) [2024-11-27 23:23:56,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2453 states and 3254 transitions. [2024-11-27 23:23:56,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-11-27 23:23:56,842 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:23:56,843 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] [2024-11-27 23:23:56,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 23:23:57,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:23:57,044 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:23:57,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:23:57,045 INFO L85 PathProgramCache]: Analyzing trace with hash -475186640, now seen corresponding path program 1 times [2024-11-27 23:23:57,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:23:57,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655501843] [2024-11-27 23:23:57,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:57,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:23:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:14,250 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 150 proven. 342 refuted. 0 times theorem prover too weak. 3468 trivial. 0 not checked. [2024-11-27 23:24:14,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:14,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655501843] [2024-11-27 23:24:14,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655501843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:24:14,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706743917] [2024-11-27 23:24:14,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:14,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:24:14,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:24:14,254 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:24:14,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adfe3aad-8d5f-4412-9c1a-2b5c57db8bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 23:24:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:24:14,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-27 23:24:14,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:24:22,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 906 proven. 666 refuted. 0 times theorem prover too weak. 2388 trivial. 0 not checked. [2024-11-27 23:24:22,184 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:24:39,966 WARN L286 SmtUtils]: Spent 16.08s 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) [2024-11-27 23:24:52,023 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) [2024-11-27 23:25:08,100 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) [2024-11-27 23:25:24,182 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) [2024-11-27 23:25:40,254 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) [2024-11-27 23:25:56,340 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) [2024-11-27 23:26:12,421 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) [2024-11-27 23:26:28,530 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) [2024-11-27 23:26:44,623 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) [2024-11-27 23:27:00,717 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) [2024-11-27 23:27:16,801 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) [2024-11-27 23:27:32,899 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) [2024-11-27 23:27:48,982 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) [2024-11-27 23:28:05,075 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) [2024-11-27 23:28:21,159 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) [2024-11-27 23:28:37,250 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) [2024-11-27 23:28:53,336 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) [2024-11-27 23:29:09,465 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) [2024-11-27 23:29:25,551 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) [2024-11-27 23:29:41,673 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) [2024-11-27 23:29:57,764 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) [2024-11-27 23:30:13,859 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) [2024-11-27 23:30:29,955 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) [2024-11-27 23:30:46,040 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) [2024-11-27 23:31:02,140 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) [2024-11-27 23:31:18,230 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) [2024-11-27 23:31:34,348 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) [2024-11-27 23:31:50,460 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) [2024-11-27 23:32:06,556 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) [2024-11-27 23:32:22,675 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) [2024-11-27 23:32:38,775 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) [2024-11-27 23:32:54,878 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) [2024-11-27 23:33:10,969 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) [2024-11-27 23:33:27,095 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) [2024-11-27 23:33:43,209 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) [2024-11-27 23:33:59,299 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) [2024-11-27 23:34:15,394 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) [2024-11-27 23:34:31,512 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) [2024-11-27 23:34:47,603 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) [2024-11-27 23:35:03,702 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) [2024-11-27 23:35:19,800 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) [2024-11-27 23:35:35,886 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) [2024-11-27 23:35:52,017 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) [2024-11-27 23:36:08,107 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) [2024-11-27 23:36:24,216 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) [2024-11-27 23:36:40,317 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) [2024-11-27 23:36:56,418 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) [2024-11-27 23:37:12,525 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) [2024-11-27 23:37:28,609 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)