./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-7.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_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 95aee679f0d9353ece6402368fcf048ee884c5702c58f228c5378bf8252818a5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:18:14,331 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:18:14,386 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 06:18:14,390 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:18:14,391 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:18:14,411 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:18:14,412 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:18:14,412 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:18:14,412 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:18:14,412 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:18:14,413 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:18:14,413 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:18:14,413 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:18:14,413 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:18:14,413 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:18:14,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:18:14,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:18:14,413 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:18:14,414 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:18:14,414 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:18:14,414 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:18:14,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:18:14,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:18:14,414 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:18:14,414 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:18:14,414 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:18:14,414 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:18:14,414 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:18:14,414 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:18:14,414 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:18:14,414 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:18:14,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:18:14,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:18:14,415 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:18:14,415 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:18:14,415 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:18:14,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:18:14,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:18:14,415 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:18:14,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:18:14,415 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:18:14,415 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:18:14,415 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:18:14,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:18:14,416 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:18:14,416 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:18:14,416 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:18:14,416 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:18:14,416 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_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95aee679f0d9353ece6402368fcf048ee884c5702c58f228c5378bf8252818a5 [2024-12-02 06:18:14,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:18:14,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:18:14,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:18:14,654 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:18:14,654 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:18:14,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-7.i [2024-12-02 06:18:17,269 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/data/b0cd11616/fa6fd36bb528439fa2e68a0b88f5a4fb/FLAGfa80918b5 [2024-12-02 06:18:17,545 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:18:17,546 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-7.i [2024-12-02 06:18:17,558 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/data/b0cd11616/fa6fd36bb528439fa2e68a0b88f5a4fb/FLAGfa80918b5 [2024-12-02 06:18:17,569 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/data/b0cd11616/fa6fd36bb528439fa2e68a0b88f5a4fb [2024-12-02 06:18:17,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:18:17,572 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:18:17,573 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:18:17,573 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:18:17,576 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:18:17,576 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:18:17" (1/1) ... [2024-12-02 06:18:17,577 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eb56494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:18:17, skipping insertion in model container [2024-12-02 06:18:17,577 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:18:17" (1/1) ... [2024-12-02 06:18:17,606 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:18:17,731 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_dcbcf47b-5703-48ec-9de5-ab6a33062984/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-7.i[915,928] [2024-12-02 06:18:17,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:18:17,923 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:18:17,931 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_dcbcf47b-5703-48ec-9de5-ab6a33062984/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-7.i[915,928] [2024-12-02 06:18:18,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:18:18,035 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:18:18,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:18:18 WrapperNode [2024-12-02 06:18:18,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:18:18,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:18:18,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:18:18,037 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:18:18,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:18:18" (1/1) ... [2024-12-02 06:18:18,059 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:18:18" (1/1) ... [2024-12-02 06:18:18,110 INFO L138 Inliner]: procedures = 26, calls = 84, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 631 [2024-12-02 06:18:18,110 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:18:18,111 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:18:18,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:18:18,111 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:18:18,120 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:18:18" (1/1) ... [2024-12-02 06:18:18,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:18:18" (1/1) ... [2024-12-02 06:18:18,128 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:18:18" (1/1) ... [2024-12-02 06:18:18,172 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 06:18:18,172 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:18:18" (1/1) ... [2024-12-02 06:18:18,173 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:18:18" (1/1) ... [2024-12-02 06:18:18,197 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:18:18" (1/1) ... [2024-12-02 06:18:18,202 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:18:18" (1/1) ... [2024-12-02 06:18:18,207 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:18:18" (1/1) ... [2024-12-02 06:18:18,215 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:18:18" (1/1) ... [2024-12-02 06:18:18,220 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:18:18" (1/1) ... [2024-12-02 06:18:18,234 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:18:18,235 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:18:18,235 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:18:18,235 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:18:18,236 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:18:18" (1/1) ... [2024-12-02 06:18:18,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:18:18,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:18:18,265 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:18:18,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:18:18,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:18:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 06:18:18,291 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 06:18:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:18:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:18:18,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:18:18,413 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:18:18,415 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:18:19,346 INFO L? ?]: Removed 92 outVars from TransFormulas that were not future-live. [2024-12-02 06:18:19,346 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:18:19,360 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:18:19,361 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 06:18:19,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:18:19 BoogieIcfgContainer [2024-12-02 06:18:19,361 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:18:19,363 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:18:19,363 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:18:19,366 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:18:19,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:18:17" (1/3) ... [2024-12-02 06:18:19,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50aeb468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:18:19, skipping insertion in model container [2024-12-02 06:18:19,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:18:18" (2/3) ... [2024-12-02 06:18:19,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50aeb468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:18:19, skipping insertion in model container [2024-12-02 06:18:19,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:18:19" (3/3) ... [2024-12-02 06:18:19,369 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-7.i [2024-12-02 06:18:19,390 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:18:19,393 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount500_file-7.i that has 2 procedures, 256 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 06:18:19,452 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:18:19,463 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;@585dc45d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:18:19,463 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:18:19,467 INFO L276 IsEmpty]: Start isEmpty. Operand has 256 states, 182 states have (on average 1.5384615384615385) internal successors, (280), 183 states have internal predecessors, (280), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-12-02 06:18:19,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-12-02 06:18:19,490 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:18:19,491 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:18:19,492 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:18:19,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:18:19,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1609672921, now seen corresponding path program 1 times [2024-12-02 06:18:19,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:18:19,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088999980] [2024-12-02 06:18:19,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:18:19,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:18:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:18:20,113 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 9800 trivial. 0 not checked. [2024-12-02 06:18:20,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:18:20,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088999980] [2024-12-02 06:18:20,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088999980] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:18:20,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546751163] [2024-12-02 06:18:20,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:18:20,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:18:20,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:18:20,118 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:18:20,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:18:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:18:20,536 INFO L256 TraceCheckSpWp]: Trace formula consists of 1179 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 06:18:20,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:18:20,614 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 9800 trivial. 0 not checked. [2024-12-02 06:18:20,614 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:18:20,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546751163] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:18:20,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:18:20,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 06:18:20,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445633788] [2024-12-02 06:18:20,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:18:20,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 06:18:20,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:18:20,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 06:18:20,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:18:20,645 INFO L87 Difference]: Start difference. First operand has 256 states, 182 states have (on average 1.5384615384615385) internal successors, (280), 183 states have internal predecessors, (280), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) Second operand has 2 states, 2 states have (on average 64.0) internal successors, (128), 2 states have internal predecessors, (128), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 2 states have call successors, (71) [2024-12-02 06:18:20,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:18:20,693 INFO L93 Difference]: Finished difference Result 504 states and 907 transitions. [2024-12-02 06:18:20,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 06:18:20,695 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 64.0) internal successors, (128), 2 states have internal predecessors, (128), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 2 states have call successors, (71) Word has length 478 [2024-12-02 06:18:20,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:18:20,701 INFO L225 Difference]: With dead ends: 504 [2024-12-02 06:18:20,701 INFO L226 Difference]: Without dead ends: 251 [2024-12-02 06:18:20,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:18:20,708 INFO L435 NwaCegarLoop]: 412 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, 412 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:18:20,709 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:18:20,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-12-02 06:18:20,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2024-12-02 06:18:20,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 178 states have (on average 1.5168539325842696) internal successors, (270), 178 states have internal predecessors, (270), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-12-02 06:18:20,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 412 transitions. [2024-12-02 06:18:20,772 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 412 transitions. Word has length 478 [2024-12-02 06:18:20,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:18:20,773 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 412 transitions. [2024-12-02 06:18:20,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 64.0) internal successors, (128), 2 states have internal predecessors, (128), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 2 states have call successors, (71) [2024-12-02 06:18:20,773 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 412 transitions. [2024-12-02 06:18:20,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-12-02 06:18:20,786 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:18:20,786 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:18:20,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:18:20,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 06:18:20,987 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:18:20,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:18:20,988 INFO L85 PathProgramCache]: Analyzing trace with hash 561901467, now seen corresponding path program 1 times [2024-12-02 06:18:20,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:18:20,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874865770] [2024-12-02 06:18:20,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:18:20,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:18:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:18:21,734 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:18:21,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:18:21,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874865770] [2024-12-02 06:18:21,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874865770] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:18:21,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:18:21,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:18:21,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851747387] [2024-12-02 06:18:21,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:18:21,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:18:21,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:18:21,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:18:21,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:18:21,738 INFO L87 Difference]: Start difference. First operand 251 states and 412 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:21,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:18:21,835 INFO L93 Difference]: Finished difference Result 743 states and 1222 transitions. [2024-12-02 06:18:21,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:18:21,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 478 [2024-12-02 06:18:21,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:18:21,842 INFO L225 Difference]: With dead ends: 743 [2024-12-02 06:18:21,842 INFO L226 Difference]: Without dead ends: 495 [2024-12-02 06:18:21,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:18:21,844 INFO L435 NwaCegarLoop]: 656 mSDtfsCounter, 376 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:18:21,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 1052 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:18:21,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-12-02 06:18:21,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 493. [2024-12-02 06:18:21,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 348 states have (on average 1.5086206896551724) internal successors, (525), 348 states have internal predecessors, (525), 142 states have call successors, (142), 2 states have call predecessors, (142), 2 states have return successors, (142), 142 states have call predecessors, (142), 142 states have call successors, (142) [2024-12-02 06:18:21,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 809 transitions. [2024-12-02 06:18:21,899 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 809 transitions. Word has length 478 [2024-12-02 06:18:21,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:18:21,900 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 809 transitions. [2024-12-02 06:18:21,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:21,900 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 809 transitions. [2024-12-02 06:18:21,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-12-02 06:18:21,906 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:18:21,906 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:18:21,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:18:21,907 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:18:21,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:18:21,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1489465701, now seen corresponding path program 1 times [2024-12-02 06:18:21,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:18:21,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7579274] [2024-12-02 06:18:21,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:18:21,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:18:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:18:22,741 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:18:22,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:18:22,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7579274] [2024-12-02 06:18:22,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7579274] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:18:22,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:18:22,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:18:22,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994748605] [2024-12-02 06:18:22,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:18:22,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:18:22,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:18:22,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:18:22,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:18:22,744 INFO L87 Difference]: Start difference. First operand 493 states and 809 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:23,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:18:23,192 INFO L93 Difference]: Finished difference Result 1567 states and 2571 transitions. [2024-12-02 06:18:23,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:18:23,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 478 [2024-12-02 06:18:23,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:18:23,200 INFO L225 Difference]: With dead ends: 1567 [2024-12-02 06:18:23,200 INFO L226 Difference]: Without dead ends: 1077 [2024-12-02 06:18:23,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:18:23,202 INFO L435 NwaCegarLoop]: 483 mSDtfsCounter, 480 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:18:23,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 1286 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:18:23,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2024-12-02 06:18:23,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 977. [2024-12-02 06:18:23,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 688 states have (on average 1.505813953488372) internal successors, (1036), 688 states have internal predecessors, (1036), 284 states have call successors, (284), 4 states have call predecessors, (284), 4 states have return successors, (284), 284 states have call predecessors, (284), 284 states have call successors, (284) [2024-12-02 06:18:23,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1604 transitions. [2024-12-02 06:18:23,323 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1604 transitions. Word has length 478 [2024-12-02 06:18:23,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:18:23,324 INFO L471 AbstractCegarLoop]: Abstraction has 977 states and 1604 transitions. [2024-12-02 06:18:23,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:23,325 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1604 transitions. [2024-12-02 06:18:23,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-12-02 06:18:23,329 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:18:23,329 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:18:23,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:18:23,329 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:18:23,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:18:23,330 INFO L85 PathProgramCache]: Analyzing trace with hash 405908891, now seen corresponding path program 1 times [2024-12-02 06:18:23,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:18:23,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958740043] [2024-12-02 06:18:23,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:18:23,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:18:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:18:23,878 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:18:23,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:18:23,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958740043] [2024-12-02 06:18:23,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958740043] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:18:23,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:18:23,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:18:23,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138735266] [2024-12-02 06:18:23,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:18:23,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:18:23,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:18:23,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:18:23,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:18:23,881 INFO L87 Difference]: Start difference. First operand 977 states and 1604 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:24,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:18:24,007 INFO L93 Difference]: Finished difference Result 2437 states and 4005 transitions. [2024-12-02 06:18:24,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:18:24,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 478 [2024-12-02 06:18:24,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:18:24,020 INFO L225 Difference]: With dead ends: 2437 [2024-12-02 06:18:24,020 INFO L226 Difference]: Without dead ends: 1463 [2024-12-02 06:18:24,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:18:24,024 INFO L435 NwaCegarLoop]: 407 mSDtfsCounter, 258 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:18:24,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 807 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:18:24,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2024-12-02 06:18:24,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1461. [2024-12-02 06:18:24,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1028 states have (on average 1.5029182879377432) internal successors, (1545), 1028 states have internal predecessors, (1545), 426 states have call successors, (426), 6 states have call predecessors, (426), 6 states have return successors, (426), 426 states have call predecessors, (426), 426 states have call successors, (426) [2024-12-02 06:18:24,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2397 transitions. [2024-12-02 06:18:24,260 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2397 transitions. Word has length 478 [2024-12-02 06:18:24,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:18:24,261 INFO L471 AbstractCegarLoop]: Abstraction has 1461 states and 2397 transitions. [2024-12-02 06:18:24,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:24,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2397 transitions. [2024-12-02 06:18:24,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-12-02 06:18:24,268 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:18:24,269 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:18:24,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:18:24,269 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:18:24,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:18:24,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1356610979, now seen corresponding path program 1 times [2024-12-02 06:18:24,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:18:24,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447189842] [2024-12-02 06:18:24,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:18:24,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:18:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:18:25,580 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:18:25,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:18:25,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447189842] [2024-12-02 06:18:25,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447189842] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:18:25,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:18:25,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:18:25,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833318171] [2024-12-02 06:18:25,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:18:25,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:18:25,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:18:25,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:18:25,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:18:25,582 INFO L87 Difference]: Start difference. First operand 1461 states and 2397 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:26,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:18:26,103 INFO L93 Difference]: Finished difference Result 4527 states and 7437 transitions. [2024-12-02 06:18:26,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:18:26,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 478 [2024-12-02 06:18:26,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:18:26,122 INFO L225 Difference]: With dead ends: 4527 [2024-12-02 06:18:26,122 INFO L226 Difference]: Without dead ends: 3069 [2024-12-02 06:18:26,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:18:26,128 INFO L435 NwaCegarLoop]: 502 mSDtfsCounter, 548 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:18:26,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 1234 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:18:26,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2024-12-02 06:18:26,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 2420. [2024-12-02 06:18:26,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 1885 states have (on average 1.5559681697612733) internal successors, (2933), 1891 states have internal predecessors, (2933), 522 states have call successors, (522), 12 states have call predecessors, (522), 12 states have return successors, (522), 516 states have call predecessors, (522), 522 states have call successors, (522) [2024-12-02 06:18:26,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3977 transitions. [2024-12-02 06:18:26,380 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3977 transitions. Word has length 478 [2024-12-02 06:18:26,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:18:26,381 INFO L471 AbstractCegarLoop]: Abstraction has 2420 states and 3977 transitions. [2024-12-02 06:18:26,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:26,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3977 transitions. [2024-12-02 06:18:26,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-12-02 06:18:26,386 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:18:26,386 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:18:26,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:18:26,386 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:18:26,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:18:26,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1709699361, now seen corresponding path program 1 times [2024-12-02 06:18:26,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:18:26,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711406100] [2024-12-02 06:18:26,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:18:26,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:18:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:18:27,433 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:18:27,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:18:27,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711406100] [2024-12-02 06:18:27,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711406100] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:18:27,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:18:27,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:18:27,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896281758] [2024-12-02 06:18:27,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:18:27,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:18:27,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:18:27,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:18:27,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:18:27,435 INFO L87 Difference]: Start difference. First operand 2420 states and 3977 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:27,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:18:27,990 INFO L93 Difference]: Finished difference Result 5444 states and 8939 transitions. [2024-12-02 06:18:27,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:18:27,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 478 [2024-12-02 06:18:27,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:18:28,011 INFO L225 Difference]: With dead ends: 5444 [2024-12-02 06:18:28,011 INFO L226 Difference]: Without dead ends: 3027 [2024-12-02 06:18:28,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:18:28,019 INFO L435 NwaCegarLoop]: 658 mSDtfsCounter, 398 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:18:28,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 1482 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:18:28,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3027 states. [2024-12-02 06:18:28,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3027 to 2777. [2024-12-02 06:18:28,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2777 states, 2242 states have (on average 1.5820695807314897) internal successors, (3547), 2248 states have internal predecessors, (3547), 522 states have call successors, (522), 12 states have call predecessors, (522), 12 states have return successors, (522), 516 states have call predecessors, (522), 522 states have call successors, (522) [2024-12-02 06:18:28,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2777 states to 2777 states and 4591 transitions. [2024-12-02 06:18:28,342 INFO L78 Accepts]: Start accepts. Automaton has 2777 states and 4591 transitions. Word has length 478 [2024-12-02 06:18:28,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:18:28,343 INFO L471 AbstractCegarLoop]: Abstraction has 2777 states and 4591 transitions. [2024-12-02 06:18:28,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:28,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2777 states and 4591 transitions. [2024-12-02 06:18:28,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-12-02 06:18:28,348 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:18:28,349 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:18:28,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:18:28,349 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:18:28,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:18:28,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1411003877, now seen corresponding path program 1 times [2024-12-02 06:18:28,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:18:28,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775265367] [2024-12-02 06:18:28,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:18:28,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:18:28,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:18:29,352 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:18:29,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:18:29,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775265367] [2024-12-02 06:18:29,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775265367] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:18:29,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:18:29,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:18:29,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865173108] [2024-12-02 06:18:29,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:18:29,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:18:29,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:18:29,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:18:29,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:18:29,354 INFO L87 Difference]: Start difference. First operand 2777 states and 4591 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:29,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:18:29,920 INFO L93 Difference]: Finished difference Result 6348 states and 10455 transitions. [2024-12-02 06:18:29,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:18:29,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 478 [2024-12-02 06:18:29,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:18:29,940 INFO L225 Difference]: With dead ends: 6348 [2024-12-02 06:18:29,940 INFO L226 Difference]: Without dead ends: 3574 [2024-12-02 06:18:29,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:18:29,947 INFO L435 NwaCegarLoop]: 537 mSDtfsCounter, 422 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:18:29,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 1608 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:18:29,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2024-12-02 06:18:30,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 2436. [2024-12-02 06:18:30,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2436 states, 1997 states have (on average 1.5858788182273411) internal successors, (3167), 1997 states have internal predecessors, (3167), 426 states have call successors, (426), 12 states have call predecessors, (426), 12 states have return successors, (426), 426 states have call predecessors, (426), 426 states have call successors, (426) [2024-12-02 06:18:30,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2436 states to 2436 states and 4019 transitions. [2024-12-02 06:18:30,085 INFO L78 Accepts]: Start accepts. Automaton has 2436 states and 4019 transitions. Word has length 478 [2024-12-02 06:18:30,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:18:30,086 INFO L471 AbstractCegarLoop]: Abstraction has 2436 states and 4019 transitions. [2024-12-02 06:18:30,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:30,086 INFO L276 IsEmpty]: Start isEmpty. Operand 2436 states and 4019 transitions. [2024-12-02 06:18:30,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-12-02 06:18:30,088 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:18:30,089 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:18:30,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 06:18:30,089 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:18:30,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:18:30,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1764092259, now seen corresponding path program 1 times [2024-12-02 06:18:30,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:18:30,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174278682] [2024-12-02 06:18:30,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:18:30,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:18:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:18:31,066 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:18:31,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:18:31,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174278682] [2024-12-02 06:18:31,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174278682] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:18:31,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:18:31,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:18:31,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505510418] [2024-12-02 06:18:31,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:18:31,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:18:31,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:18:31,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:18:31,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:18:31,069 INFO L87 Difference]: Start difference. First operand 2436 states and 4019 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:31,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:18:31,733 INFO L93 Difference]: Finished difference Result 5977 states and 9829 transitions. [2024-12-02 06:18:31,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:18:31,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 478 [2024-12-02 06:18:31,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:18:31,752 INFO L225 Difference]: With dead ends: 5977 [2024-12-02 06:18:31,752 INFO L226 Difference]: Without dead ends: 3544 [2024-12-02 06:18:31,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:18:31,759 INFO L435 NwaCegarLoop]: 644 mSDtfsCounter, 367 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:18:31,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 1792 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:18:31,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3544 states. [2024-12-02 06:18:31,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3544 to 2104. [2024-12-02 06:18:31,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2104 states, 1665 states have (on average 1.5657657657657658) internal successors, (2607), 1665 states have internal predecessors, (2607), 426 states have call successors, (426), 12 states have call predecessors, (426), 12 states have return successors, (426), 426 states have call predecessors, (426), 426 states have call successors, (426) [2024-12-02 06:18:31,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2104 states to 2104 states and 3459 transitions. [2024-12-02 06:18:31,966 INFO L78 Accepts]: Start accepts. Automaton has 2104 states and 3459 transitions. Word has length 478 [2024-12-02 06:18:31,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:18:31,967 INFO L471 AbstractCegarLoop]: Abstraction has 2104 states and 3459 transitions. [2024-12-02 06:18:31,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:31,967 INFO L276 IsEmpty]: Start isEmpty. Operand 2104 states and 3459 transitions. [2024-12-02 06:18:31,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-12-02 06:18:31,971 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:18:31,971 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:18:31,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 06:18:31,971 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:18:31,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:18:31,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1827800696, now seen corresponding path program 1 times [2024-12-02 06:18:31,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:18:31,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551145600] [2024-12-02 06:18:31,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:18:31,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:18:32,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:18:32,541 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:18:32,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:18:32,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551145600] [2024-12-02 06:18:32,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551145600] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:18:32,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:18:32,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:18:32,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781308972] [2024-12-02 06:18:32,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:18:32,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:18:32,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:18:32,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:18:32,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:18:32,543 INFO L87 Difference]: Start difference. First operand 2104 states and 3459 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:32,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:18:32,739 INFO L93 Difference]: Finished difference Result 6306 states and 10371 transitions. [2024-12-02 06:18:32,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:18:32,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 479 [2024-12-02 06:18:32,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:18:32,760 INFO L225 Difference]: With dead ends: 6306 [2024-12-02 06:18:32,760 INFO L226 Difference]: Without dead ends: 4205 [2024-12-02 06:18:32,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:18:32,766 INFO L435 NwaCegarLoop]: 742 mSDtfsCounter, 403 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:18:32,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 1143 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:18:32,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4205 states. [2024-12-02 06:18:33,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4205 to 4191. [2024-12-02 06:18:33,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4191 states, 3314 states have (on average 1.5612552806276403) internal successors, (5174), 3314 states have internal predecessors, (5174), 852 states have call successors, (852), 24 states have call predecessors, (852), 24 states have return successors, (852), 852 states have call predecessors, (852), 852 states have call successors, (852) [2024-12-02 06:18:33,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4191 states to 4191 states and 6878 transitions. [2024-12-02 06:18:33,126 INFO L78 Accepts]: Start accepts. Automaton has 4191 states and 6878 transitions. Word has length 479 [2024-12-02 06:18:33,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:18:33,127 INFO L471 AbstractCegarLoop]: Abstraction has 4191 states and 6878 transitions. [2024-12-02 06:18:33,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:33,127 INFO L276 IsEmpty]: Start isEmpty. Operand 4191 states and 6878 transitions. [2024-12-02 06:18:33,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-12-02 06:18:33,132 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:18:33,133 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:18:33,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:18:33,133 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:18:33,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:18:33,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1687252086, now seen corresponding path program 1 times [2024-12-02 06:18:33,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:18:33,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145528244] [2024-12-02 06:18:33,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:18:33,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:18:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:18:34,762 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:18:34,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:18:34,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145528244] [2024-12-02 06:18:34,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145528244] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:18:34,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:18:34,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:18:34,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495145729] [2024-12-02 06:18:34,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:18:34,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:18:34,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:18:34,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:18:34,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:18:34,765 INFO L87 Difference]: Start difference. First operand 4191 states and 6878 transitions. Second operand has 8 states, 8 states have (on average 15.875) internal successors, (127), 8 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:36,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:18:36,076 INFO L93 Difference]: Finished difference Result 18486 states and 30448 transitions. [2024-12-02 06:18:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 06:18:36,077 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.875) internal successors, (127), 8 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 479 [2024-12-02 06:18:36,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:18:36,119 INFO L225 Difference]: With dead ends: 18486 [2024-12-02 06:18:36,119 INFO L226 Difference]: Without dead ends: 14298 [2024-12-02 06:18:36,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:18:36,129 INFO L435 NwaCegarLoop]: 504 mSDtfsCounter, 2627 mSDsluCounter, 1793 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2627 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 06:18:36,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2627 Valid, 2297 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 06:18:36,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14298 states. [2024-12-02 06:18:36,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14298 to 7575. [2024-12-02 06:18:36,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7575 states, 6200 states have (on average 1.5753225806451614) internal successors, (9767), 6203 states have internal predecessors, (9767), 1332 states have call successors, (1332), 42 states have call predecessors, (1332), 42 states have return successors, (1332), 1329 states have call predecessors, (1332), 1332 states have call successors, (1332) [2024-12-02 06:18:36,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7575 states to 7575 states and 12431 transitions. [2024-12-02 06:18:36,836 INFO L78 Accepts]: Start accepts. Automaton has 7575 states and 12431 transitions. Word has length 479 [2024-12-02 06:18:36,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:18:36,837 INFO L471 AbstractCegarLoop]: Abstraction has 7575 states and 12431 transitions. [2024-12-02 06:18:36,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.875) internal successors, (127), 8 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:36,838 INFO L276 IsEmpty]: Start isEmpty. Operand 7575 states and 12431 transitions. [2024-12-02 06:18:36,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-12-02 06:18:36,845 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:18:36,845 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:18:36,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 06:18:36,845 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:18:36,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:18:36,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1411400457, now seen corresponding path program 1 times [2024-12-02 06:18:36,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:18:36,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369368733] [2024-12-02 06:18:36,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:18:36,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:18:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:18:37,730 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:18:37,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:18:37,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369368733] [2024-12-02 06:18:37,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369368733] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:18:37,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:18:37,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:18:37,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020941837] [2024-12-02 06:18:37,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:18:37,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:18:37,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:18:37,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:18:37,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:18:37,732 INFO L87 Difference]: Start difference. First operand 7575 states and 12431 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:38,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:18:38,496 INFO L93 Difference]: Finished difference Result 17561 states and 28822 transitions. [2024-12-02 06:18:38,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:18:38,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 479 [2024-12-02 06:18:38,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:18:38,537 INFO L225 Difference]: With dead ends: 17561 [2024-12-02 06:18:38,537 INFO L226 Difference]: Without dead ends: 9989 [2024-12-02 06:18:38,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:18:38,553 INFO L435 NwaCegarLoop]: 407 mSDtfsCounter, 271 mSDsluCounter, 1057 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:18:38,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 1464 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:18:38,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9989 states. [2024-12-02 06:18:39,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9989 to 7713. [2024-12-02 06:18:39,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7713 states, 6265 states have (on average 1.5706304868316041) internal successors, (9840), 6268 states have internal predecessors, (9840), 1403 states have call successors, (1403), 44 states have call predecessors, (1403), 44 states have return successors, (1403), 1400 states have call predecessors, (1403), 1403 states have call successors, (1403) [2024-12-02 06:18:39,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7713 states to 7713 states and 12646 transitions. [2024-12-02 06:18:39,233 INFO L78 Accepts]: Start accepts. Automaton has 7713 states and 12646 transitions. Word has length 479 [2024-12-02 06:18:39,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:18:39,234 INFO L471 AbstractCegarLoop]: Abstraction has 7713 states and 12646 transitions. [2024-12-02 06:18:39,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:39,235 INFO L276 IsEmpty]: Start isEmpty. Operand 7713 states and 12646 transitions. [2024-12-02 06:18:39,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-12-02 06:18:39,243 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:18:39,244 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:18:39,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 06:18:39,244 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:18:39,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:18:39,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1038310903, now seen corresponding path program 1 times [2024-12-02 06:18:39,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:18:39,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187742984] [2024-12-02 06:18:39,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:18:39,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:18:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:18:41,056 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:18:41,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:18:41,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187742984] [2024-12-02 06:18:41,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187742984] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:18:41,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:18:41,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:18:41,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692251202] [2024-12-02 06:18:41,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:18:41,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:18:41,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:18:41,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:18:41,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:18:41,059 INFO L87 Difference]: Start difference. First operand 7713 states and 12646 transitions. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:42,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:18:42,009 INFO L93 Difference]: Finished difference Result 26526 states and 43304 transitions. [2024-12-02 06:18:42,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:18:42,010 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 479 [2024-12-02 06:18:42,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:18:42,060 INFO L225 Difference]: With dead ends: 26526 [2024-12-02 06:18:42,060 INFO L226 Difference]: Without dead ends: 18954 [2024-12-02 06:18:42,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:18:42,078 INFO L435 NwaCegarLoop]: 492 mSDtfsCounter, 693 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 1755 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:18:42,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 1755 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:18:42,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18954 states. [2024-12-02 06:18:42,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18954 to 11865. [2024-12-02 06:18:42,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11865 states, 10116 states have (on average 1.5889679715302492) internal successors, (16074), 10134 states have internal predecessors, (16074), 1673 states have call successors, (1673), 75 states have call predecessors, (1673), 75 states have return successors, (1673), 1655 states have call predecessors, (1673), 1673 states have call successors, (1673) [2024-12-02 06:18:42,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11865 states to 11865 states and 19420 transitions. [2024-12-02 06:18:42,813 INFO L78 Accepts]: Start accepts. Automaton has 11865 states and 19420 transitions. Word has length 479 [2024-12-02 06:18:42,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:18:42,813 INFO L471 AbstractCegarLoop]: Abstraction has 11865 states and 19420 transitions. [2024-12-02 06:18:42,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:42,814 INFO L276 IsEmpty]: Start isEmpty. Operand 11865 states and 19420 transitions. [2024-12-02 06:18:42,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-12-02 06:18:42,818 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:18:42,819 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:18:42,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 06:18:42,819 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:18:42,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:18:42,819 INFO L85 PathProgramCache]: Analyzing trace with hash 8951605, now seen corresponding path program 1 times [2024-12-02 06:18:42,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:18:42,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898578534] [2024-12-02 06:18:42,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:18:42,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:18:43,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:18:44,036 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:18:44,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:18:44,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898578534] [2024-12-02 06:18:44,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898578534] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:18:44,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:18:44,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 06:18:44,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106463594] [2024-12-02 06:18:44,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:18:44,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:18:44,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:18:44,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:18:44,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:18:44,038 INFO L87 Difference]: Start difference. First operand 11865 states and 19420 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 2 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2024-12-02 06:18:46,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:18:46,120 INFO L93 Difference]: Finished difference Result 54498 states and 89735 transitions. [2024-12-02 06:18:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 06:18:46,121 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 2 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) Word has length 479 [2024-12-02 06:18:46,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:18:46,223 INFO L225 Difference]: With dead ends: 54498 [2024-12-02 06:18:46,223 INFO L226 Difference]: Without dead ends: 42778 [2024-12-02 06:18:46,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2024-12-02 06:18:46,251 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 2401 mSDsluCounter, 2636 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2401 SdHoareTripleChecker+Valid, 3254 SdHoareTripleChecker+Invalid, 1470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:18:46,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2401 Valid, 3254 Invalid, 1470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 06:18:46,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42778 states. [2024-12-02 06:18:47,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42778 to 27210. [2024-12-02 06:18:47,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27210 states, 23697 states have (on average 1.595138625142423) internal successors, (37800), 23751 states have internal predecessors, (37800), 3347 states have call successors, (3347), 165 states have call predecessors, (3347), 165 states have return successors, (3347), 3293 states have call predecessors, (3347), 3347 states have call successors, (3347) [2024-12-02 06:18:48,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27210 states to 27210 states and 44494 transitions. [2024-12-02 06:18:48,049 INFO L78 Accepts]: Start accepts. Automaton has 27210 states and 44494 transitions. Word has length 479 [2024-12-02 06:18:48,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:18:48,049 INFO L471 AbstractCegarLoop]: Abstraction has 27210 states and 44494 transitions. [2024-12-02 06:18:48,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 2 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2024-12-02 06:18:48,050 INFO L276 IsEmpty]: Start isEmpty. Operand 27210 states and 44494 transitions. [2024-12-02 06:18:48,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-12-02 06:18:48,058 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:18:48,058 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:18:48,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 06:18:48,058 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:18:48,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:18:48,059 INFO L85 PathProgramCache]: Analyzing trace with hash -69557391, now seen corresponding path program 1 times [2024-12-02 06:18:48,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:18:48,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352634332] [2024-12-02 06:18:48,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:18:48,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:18:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:18:49,274 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:18:49,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:18:49,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352634332] [2024-12-02 06:18:49,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352634332] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:18:49,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:18:49,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:18:49,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040627704] [2024-12-02 06:18:49,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:18:49,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:18:49,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:18:49,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:18:49,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:18:49,276 INFO L87 Difference]: Start difference. First operand 27210 states and 44494 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:51,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:18:51,569 INFO L93 Difference]: Finished difference Result 60586 states and 98102 transitions. [2024-12-02 06:18:51,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:18:51,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 479 [2024-12-02 06:18:51,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:18:51,638 INFO L225 Difference]: With dead ends: 60586 [2024-12-02 06:18:51,638 INFO L226 Difference]: Without dead ends: 41450 [2024-12-02 06:18:51,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:18:51,665 INFO L435 NwaCegarLoop]: 526 mSDtfsCounter, 345 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:18:51,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 1427 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:18:51,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41450 states. [2024-12-02 06:18:53,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41450 to 36646. [2024-12-02 06:18:53,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36646 states, 31477 states have (on average 1.5720684944562697) internal successors, (49484), 31627 states have internal predecessors, (49484), 4835 states have call successors, (4835), 333 states have call predecessors, (4835), 333 states have return successors, (4835), 4685 states have call predecessors, (4835), 4835 states have call successors, (4835) [2024-12-02 06:18:53,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36646 states to 36646 states and 59154 transitions. [2024-12-02 06:18:53,477 INFO L78 Accepts]: Start accepts. Automaton has 36646 states and 59154 transitions. Word has length 479 [2024-12-02 06:18:53,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:18:53,478 INFO L471 AbstractCegarLoop]: Abstraction has 36646 states and 59154 transitions. [2024-12-02 06:18:53,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:53,478 INFO L276 IsEmpty]: Start isEmpty. Operand 36646 states and 59154 transitions. [2024-12-02 06:18:53,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-12-02 06:18:53,488 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:18:53,489 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:18:53,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 06:18:53,489 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:18:53,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:18:53,489 INFO L85 PathProgramCache]: Analyzing trace with hash 70991219, now seen corresponding path program 1 times [2024-12-02 06:18:53,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:18:53,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296825932] [2024-12-02 06:18:53,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:18:53,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:18:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:18:54,405 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:18:54,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:18:54,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296825932] [2024-12-02 06:18:54,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296825932] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:18:54,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:18:54,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:18:54,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979860751] [2024-12-02 06:18:54,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:18:54,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:18:54,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:18:54,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:18:54,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:18:54,406 INFO L87 Difference]: Start difference. First operand 36646 states and 59154 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:18:57,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:18:57,637 INFO L93 Difference]: Finished difference Result 110828 states and 178778 transitions. [2024-12-02 06:18:57,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:18:57,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 479 [2024-12-02 06:18:57,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:18:57,747 INFO L225 Difference]: With dead ends: 110828 [2024-12-02 06:18:57,747 INFO L226 Difference]: Without dead ends: 74327 [2024-12-02 06:18:57,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:18:57,792 INFO L435 NwaCegarLoop]: 881 mSDtfsCounter, 770 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 2150 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:18:57,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 2150 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:18:57,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74327 states. [2024-12-02 06:19:01,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74327 to 73127. [2024-12-02 06:19:01,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73127 states, 62864 states have (on average 1.56709722575719) internal successors, (98514), 63164 states have internal predecessors, (98514), 9599 states have call successors, (9599), 663 states have call predecessors, (9599), 663 states have return successors, (9599), 9299 states have call predecessors, (9599), 9599 states have call successors, (9599) [2024-12-02 06:19:01,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73127 states to 73127 states and 117712 transitions. [2024-12-02 06:19:01,601 INFO L78 Accepts]: Start accepts. Automaton has 73127 states and 117712 transitions. Word has length 479 [2024-12-02 06:19:01,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:01,601 INFO L471 AbstractCegarLoop]: Abstraction has 73127 states and 117712 transitions. [2024-12-02 06:19:01,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:19:01,601 INFO L276 IsEmpty]: Start isEmpty. Operand 73127 states and 117712 transitions. [2024-12-02 06:19:01,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-12-02 06:19:01,625 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:01,626 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:19:01,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 06:19:01,626 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:01,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:01,627 INFO L85 PathProgramCache]: Analyzing trace with hash -746657231, now seen corresponding path program 1 times [2024-12-02 06:19:01,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:01,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041616118] [2024-12-02 06:19:01,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:01,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:02,647 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:19:02,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:02,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041616118] [2024-12-02 06:19:02,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041616118] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:02,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:02,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:19:02,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270595061] [2024-12-02 06:19:02,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:02,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:19:02,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:02,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:19:02,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:19:02,650 INFO L87 Difference]: Start difference. First operand 73127 states and 117712 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:19:06,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:06,281 INFO L93 Difference]: Finished difference Result 146079 states and 234703 transitions. [2024-12-02 06:19:06,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:19:06,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 479 [2024-12-02 06:19:06,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:06,417 INFO L225 Difference]: With dead ends: 146079 [2024-12-02 06:19:06,417 INFO L226 Difference]: Without dead ends: 73097 [2024-12-02 06:19:06,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:19:06,505 INFO L435 NwaCegarLoop]: 516 mSDtfsCounter, 440 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:19:06,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 1378 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:19:06,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73097 states. [2024-12-02 06:19:09,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73097 to 59799. [2024-12-02 06:19:09,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59799 states, 52667 states have (on average 1.578464693261435) internal successors, (83133), 52787 states have internal predecessors, (83133), 6719 states have call successors, (6719), 412 states have call predecessors, (6719), 412 states have return successors, (6719), 6599 states have call predecessors, (6719), 6719 states have call successors, (6719) [2024-12-02 06:19:09,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59799 states to 59799 states and 96571 transitions. [2024-12-02 06:19:09,481 INFO L78 Accepts]: Start accepts. Automaton has 59799 states and 96571 transitions. Word has length 479 [2024-12-02 06:19:09,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:09,482 INFO L471 AbstractCegarLoop]: Abstraction has 59799 states and 96571 transitions. [2024-12-02 06:19:09,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:19:09,482 INFO L276 IsEmpty]: Start isEmpty. Operand 59799 states and 96571 transitions. [2024-12-02 06:19:09,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-12-02 06:19:09,498 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:09,498 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:19:09,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 06:19:09,498 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:09,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:09,499 INFO L85 PathProgramCache]: Analyzing trace with hash 679511279, now seen corresponding path program 1 times [2024-12-02 06:19:09,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:09,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349969657] [2024-12-02 06:19:09,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:09,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:11,159 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:19:11,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:11,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349969657] [2024-12-02 06:19:11,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349969657] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:11,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:11,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 06:19:11,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199086170] [2024-12-02 06:19:11,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:11,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 06:19:11,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:11,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 06:19:11,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:19:11,161 INFO L87 Difference]: Start difference. First operand 59799 states and 96571 transitions. Second operand has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 12 states have internal predecessors, (127), 2 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2024-12-02 06:19:19,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:19,795 INFO L93 Difference]: Finished difference Result 180854 states and 289672 transitions. [2024-12-02 06:19:19,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 06:19:19,796 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 12 states have internal predecessors, (127), 2 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) Word has length 479 [2024-12-02 06:19:19,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:20,064 INFO L225 Difference]: With dead ends: 180854 [2024-12-02 06:19:20,064 INFO L226 Difference]: Without dead ends: 121204 [2024-12-02 06:19:20,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=160, Invalid=302, Unknown=0, NotChecked=0, Total=462 [2024-12-02 06:19:20,139 INFO L435 NwaCegarLoop]: 524 mSDtfsCounter, 1701 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 742 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1701 SdHoareTripleChecker+Valid, 2903 SdHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 742 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 06:19:20,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1701 Valid, 2903 Invalid, 2033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [742 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 06:19:20,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121204 states. [2024-12-02 06:19:25,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121204 to 108247. [2024-12-02 06:19:25,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108247 states, 94806 states have (on average 1.5716937746556126) internal successors, (149006), 95058 states have internal predecessors, (149006), 12491 states have call successors, (12491), 949 states have call predecessors, (12491), 949 states have return successors, (12491), 12239 states have call predecessors, (12491), 12491 states have call successors, (12491) [2024-12-02 06:19:25,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108247 states to 108247 states and 173988 transitions. [2024-12-02 06:19:25,931 INFO L78 Accepts]: Start accepts. Automaton has 108247 states and 173988 transitions. Word has length 479 [2024-12-02 06:19:25,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:25,931 INFO L471 AbstractCegarLoop]: Abstraction has 108247 states and 173988 transitions. [2024-12-02 06:19:25,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 12 states have internal predecessors, (127), 2 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2024-12-02 06:19:25,932 INFO L276 IsEmpty]: Start isEmpty. Operand 108247 states and 173988 transitions. [2024-12-02 06:19:25,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-12-02 06:19:25,952 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:25,953 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:19:25,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 06:19:25,953 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:25,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:25,953 INFO L85 PathProgramCache]: Analyzing trace with hash 898365997, now seen corresponding path program 1 times [2024-12-02 06:19:25,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:25,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502641317] [2024-12-02 06:19:25,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:25,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:26,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:27,372 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:19:27,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:27,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502641317] [2024-12-02 06:19:27,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502641317] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:27,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:27,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 06:19:27,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821336240] [2024-12-02 06:19:27,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:27,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:19:27,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:27,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:19:27,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:19:27,373 INFO L87 Difference]: Start difference. First operand 108247 states and 173988 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 2 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2024-12-02 06:19:36,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:36,625 INFO L93 Difference]: Finished difference Result 303943 states and 483589 transitions. [2024-12-02 06:19:36,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:19:36,625 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 2 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) Word has length 479 [2024-12-02 06:19:36,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:36,938 INFO L225 Difference]: With dead ends: 303943 [2024-12-02 06:19:36,938 INFO L226 Difference]: Without dead ends: 195849 [2024-12-02 06:19:37,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:19:37,074 INFO L435 NwaCegarLoop]: 483 mSDtfsCounter, 1167 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 1813 SdHoareTripleChecker+Invalid, 962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:19:37,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 1813 Invalid, 962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 920 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 06:19:37,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195849 states. [2024-12-02 06:19:44,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195849 to 169795. [2024-12-02 06:19:44,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169795 states, 154361 states have (on average 1.5895789739636308) internal successors, (245369), 154901 states have internal predecessors, (245369), 14075 states have call successors, (14075), 1358 states have call predecessors, (14075), 1358 states have return successors, (14075), 13535 states have call predecessors, (14075), 14075 states have call successors, (14075) [2024-12-02 06:19:44,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169795 states to 169795 states and 273519 transitions. [2024-12-02 06:19:44,763 INFO L78 Accepts]: Start accepts. Automaton has 169795 states and 273519 transitions. Word has length 479 [2024-12-02 06:19:44,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:19:44,763 INFO L471 AbstractCegarLoop]: Abstraction has 169795 states and 273519 transitions. [2024-12-02 06:19:44,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 2 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2024-12-02 06:19:44,764 INFO L276 IsEmpty]: Start isEmpty. Operand 169795 states and 273519 transitions. [2024-12-02 06:19:44,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-12-02 06:19:44,802 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:19:44,802 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:19:44,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 06:19:44,803 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:19:44,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:19:44,803 INFO L85 PathProgramCache]: Analyzing trace with hash -263254780, now seen corresponding path program 1 times [2024-12-02 06:19:44,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:19:44,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120092086] [2024-12-02 06:19:44,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:19:44,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:19:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:19:45,181 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:19:45,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:19:45,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120092086] [2024-12-02 06:19:45,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120092086] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:19:45,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:19:45,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:19:45,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865806873] [2024-12-02 06:19:45,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:19:45,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:19:45,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:45,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:19:45,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:19:45,183 INFO L87 Difference]: Start difference. First operand 169795 states and 273519 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:19:52,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:19:52,430 INFO L93 Difference]: Finished difference Result 353759 states and 570493 transitions. [2024-12-02 06:19:52,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:19:52,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 479 [2024-12-02 06:19:52,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:19:52,704 INFO L225 Difference]: With dead ends: 353759 [2024-12-02 06:19:52,704 INFO L226 Difference]: Without dead ends: 184121 [2024-12-02 06:19:52,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:19:52,823 INFO L435 NwaCegarLoop]: 428 mSDtfsCounter, 463 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:19:52,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 1281 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:19:52,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184121 states. [2024-12-02 06:20:00,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184121 to 169795. [2024-12-02 06:20:00,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169795 states, 154361 states have (on average 1.588840445449304) internal successors, (245255), 154901 states have internal predecessors, (245255), 14075 states have call successors, (14075), 1358 states have call predecessors, (14075), 1358 states have return successors, (14075), 13535 states have call predecessors, (14075), 14075 states have call successors, (14075) [2024-12-02 06:20:00,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169795 states to 169795 states and 273405 transitions. [2024-12-02 06:20:00,961 INFO L78 Accepts]: Start accepts. Automaton has 169795 states and 273405 transitions. Word has length 479 [2024-12-02 06:20:00,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:00,961 INFO L471 AbstractCegarLoop]: Abstraction has 169795 states and 273405 transitions. [2024-12-02 06:20:00,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:20:00,961 INFO L276 IsEmpty]: Start isEmpty. Operand 169795 states and 273405 transitions. [2024-12-02 06:20:01,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-12-02 06:20:01,004 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:01,004 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:01,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 06:20:01,005 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:01,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:01,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1982324674, now seen corresponding path program 1 times [2024-12-02 06:20:01,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:01,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241004639] [2024-12-02 06:20:01,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:01,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:02,937 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 42 proven. 168 refuted. 0 times theorem prover too weak. 9730 trivial. 0 not checked. [2024-12-02 06:20:02,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:02,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241004639] [2024-12-02 06:20:02,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241004639] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:20:02,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115092285] [2024-12-02 06:20:02,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:02,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:20:02,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:02,942 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:20:02,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 06:20:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:03,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 06:20:03,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:03,805 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 4998 proven. 114 refuted. 0 times theorem prover too weak. 4828 trivial. 0 not checked. [2024-12-02 06:20:03,805 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:20:04,306 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 96 proven. 114 refuted. 0 times theorem prover too weak. 9730 trivial. 0 not checked. [2024-12-02 06:20:04,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115092285] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:20:04,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:20:04,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2024-12-02 06:20:04,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450672391] [2024-12-02 06:20:04,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:20:04,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:20:04,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:04,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:20:04,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:20:04,309 INFO L87 Difference]: Start difference. First operand 169795 states and 273405 transitions. Second operand has 10 states, 10 states have (on average 28.5) internal successors, (285), 10 states have internal predecessors, (285), 4 states have call successors, (165), 2 states have call predecessors, (165), 4 states have return successors, (167), 4 states have call predecessors, (167), 4 states have call successors, (167) [2024-12-02 06:20:09,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:09,877 INFO L93 Difference]: Finished difference Result 285601 states and 459981 transitions. [2024-12-02 06:20:09,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 06:20:09,878 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 28.5) internal successors, (285), 10 states have internal predecessors, (285), 4 states have call successors, (165), 2 states have call predecessors, (165), 4 states have return successors, (167), 4 states have call predecessors, (167), 4 states have call successors, (167) Word has length 479 [2024-12-02 06:20:09,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:10,308 INFO L225 Difference]: With dead ends: 285601 [2024-12-02 06:20:10,308 INFO L226 Difference]: Without dead ends: 115963 [2024-12-02 06:20:10,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 973 GetRequests, 956 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:20:10,426 INFO L435 NwaCegarLoop]: 441 mSDtfsCounter, 772 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:10,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 1409 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 06:20:10,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115963 states. [2024-12-02 06:20:14,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115963 to 75703. [2024-12-02 06:20:14,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75703 states, 67463 states have (on average 1.5577575856395358) internal successors, (105091), 67727 states have internal predecessors, (105091), 7343 states have call successors, (7343), 896 states have call predecessors, (7343), 896 states have return successors, (7343), 7079 states have call predecessors, (7343), 7343 states have call successors, (7343) [2024-12-02 06:20:15,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75703 states to 75703 states and 119777 transitions. [2024-12-02 06:20:15,050 INFO L78 Accepts]: Start accepts. Automaton has 75703 states and 119777 transitions. Word has length 479 [2024-12-02 06:20:15,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:15,050 INFO L471 AbstractCegarLoop]: Abstraction has 75703 states and 119777 transitions. [2024-12-02 06:20:15,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 28.5) internal successors, (285), 10 states have internal predecessors, (285), 4 states have call successors, (165), 2 states have call predecessors, (165), 4 states have return successors, (167), 4 states have call predecessors, (167), 4 states have call successors, (167) [2024-12-02 06:20:15,051 INFO L276 IsEmpty]: Start isEmpty. Operand 75703 states and 119777 transitions. [2024-12-02 06:20:15,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2024-12-02 06:20:15,071 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:15,071 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:15,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 06:20:15,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:20:15,271 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:15,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:15,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1857033791, now seen corresponding path program 1 times [2024-12-02 06:20:15,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:15,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971055437] [2024-12-02 06:20:15,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:15,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:15,410 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:20:15,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:15,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971055437] [2024-12-02 06:20:15,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971055437] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:15,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:15,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:20:15,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598513876] [2024-12-02 06:20:15,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:15,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:20:15,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:15,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:20:15,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:20:15,412 INFO L87 Difference]: Start difference. First operand 75703 states and 119777 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:20:18,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:18,904 INFO L93 Difference]: Finished difference Result 151241 states and 239318 transitions. [2024-12-02 06:20:18,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:20:18,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 480 [2024-12-02 06:20:18,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:19,068 INFO L225 Difference]: With dead ends: 151241 [2024-12-02 06:20:19,069 INFO L226 Difference]: Without dead ends: 75703 [2024-12-02 06:20:19,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:20:19,147 INFO L435 NwaCegarLoop]: 407 mSDtfsCounter, 0 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:19,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 804 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:20:19,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75703 states. [2024-12-02 06:20:24,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75703 to 75703. [2024-12-02 06:20:24,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75703 states, 67463 states have (on average 1.5488045298904585) internal successors, (104487), 67727 states have internal predecessors, (104487), 7343 states have call successors, (7343), 896 states have call predecessors, (7343), 896 states have return successors, (7343), 7079 states have call predecessors, (7343), 7343 states have call successors, (7343) [2024-12-02 06:20:24,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75703 states to 75703 states and 119173 transitions. [2024-12-02 06:20:24,232 INFO L78 Accepts]: Start accepts. Automaton has 75703 states and 119173 transitions. Word has length 480 [2024-12-02 06:20:24,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:24,232 INFO L471 AbstractCegarLoop]: Abstraction has 75703 states and 119173 transitions. [2024-12-02 06:20:24,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:20:24,232 INFO L276 IsEmpty]: Start isEmpty. Operand 75703 states and 119173 transitions. [2024-12-02 06:20:24,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-12-02 06:20:24,251 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:24,251 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:24,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 06:20:24,251 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:24,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:24,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1163261041, now seen corresponding path program 1 times [2024-12-02 06:20:24,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:24,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37266300] [2024-12-02 06:20:24,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:24,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:26,769 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 51 proven. 159 refuted. 0 times theorem prover too weak. 9730 trivial. 0 not checked. [2024-12-02 06:20:26,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:26,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37266300] [2024-12-02 06:20:26,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37266300] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:20:26,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647357119] [2024-12-02 06:20:26,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:26,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:20:26,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:26,772 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:20:26,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 06:20:27,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:27,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 1176 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 06:20:27,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:27,257 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 1258 proven. 12 refuted. 0 times theorem prover too weak. 8670 trivial. 0 not checked. [2024-12-02 06:20:27,257 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:20:27,560 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 198 proven. 12 refuted. 0 times theorem prover too weak. 9730 trivial. 0 not checked. [2024-12-02 06:20:27,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647357119] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:20:27,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:20:27,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-12-02 06:20:27,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242197222] [2024-12-02 06:20:27,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:20:27,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:20:27,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:27,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:20:27,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:20:27,562 INFO L87 Difference]: Start difference. First operand 75703 states and 119173 transitions. Second operand has 8 states, 8 states have (on average 27.75) internal successors, (222), 8 states have internal predecessors, (222), 3 states have call successors, (128), 2 states have call predecessors, (128), 4 states have return successors, (130), 3 states have call predecessors, (130), 3 states have call successors, (130) [2024-12-02 06:20:31,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:31,708 INFO L93 Difference]: Finished difference Result 138595 states and 216093 transitions. [2024-12-02 06:20:31,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 06:20:31,709 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 27.75) internal successors, (222), 8 states have internal predecessors, (222), 3 states have call successors, (128), 2 states have call predecessors, (128), 4 states have return successors, (130), 3 states have call predecessors, (130), 3 states have call successors, (130) Word has length 482 [2024-12-02 06:20:31,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:31,847 INFO L225 Difference]: With dead ends: 138595 [2024-12-02 06:20:31,847 INFO L226 Difference]: Without dead ends: 63057 [2024-12-02 06:20:31,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 978 GetRequests, 961 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2024-12-02 06:20:31,913 INFO L435 NwaCegarLoop]: 313 mSDtfsCounter, 649 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:31,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 796 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:20:31,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63057 states. [2024-12-02 06:20:35,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63057 to 49955. [2024-12-02 06:20:35,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49955 states, 42710 states have (on average 1.4984781081713885) internal successors, (64000), 42890 states have internal predecessors, (64000), 6407 states have call successors, (6407), 837 states have call predecessors, (6407), 837 states have return successors, (6407), 6227 states have call predecessors, (6407), 6407 states have call successors, (6407) [2024-12-02 06:20:35,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49955 states to 49955 states and 76814 transitions. [2024-12-02 06:20:35,447 INFO L78 Accepts]: Start accepts. Automaton has 49955 states and 76814 transitions. Word has length 482 [2024-12-02 06:20:35,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:35,448 INFO L471 AbstractCegarLoop]: Abstraction has 49955 states and 76814 transitions. [2024-12-02 06:20:35,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 27.75) internal successors, (222), 8 states have internal predecessors, (222), 3 states have call successors, (128), 2 states have call predecessors, (128), 4 states have return successors, (130), 3 states have call predecessors, (130), 3 states have call successors, (130) [2024-12-02 06:20:35,448 INFO L276 IsEmpty]: Start isEmpty. Operand 49955 states and 76814 transitions. [2024-12-02 06:20:35,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-12-02 06:20:35,458 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:35,459 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:35,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 06:20:35,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-12-02 06:20:35,659 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:35,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:35,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1317856694, now seen corresponding path program 1 times [2024-12-02 06:20:35,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:35,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876982003] [2024-12-02 06:20:35,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:35,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:37,196 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:20:37,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:37,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876982003] [2024-12-02 06:20:37,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876982003] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:37,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:37,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:20:37,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369977145] [2024-12-02 06:20:37,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:37,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:20:37,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:37,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:20:37,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:20:37,198 INFO L87 Difference]: Start difference. First operand 49955 states and 76814 transitions. Second operand has 8 states, 8 states have (on average 16.25) internal successors, (130), 8 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:20:45,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:45,996 INFO L93 Difference]: Finished difference Result 144787 states and 222573 transitions. [2024-12-02 06:20:45,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:20:45,997 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.25) internal successors, (130), 8 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 482 [2024-12-02 06:20:45,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:20:46,215 INFO L225 Difference]: With dead ends: 144787 [2024-12-02 06:20:46,215 INFO L226 Difference]: Without dead ends: 117113 [2024-12-02 06:20:46,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:20:46,263 INFO L435 NwaCegarLoop]: 450 mSDtfsCounter, 1109 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 1828 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:20:46,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 1828 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 06:20:46,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117113 states. [2024-12-02 06:20:51,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117113 to 68009. [2024-12-02 06:20:51,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68009 states, 59036 states have (on average 1.5050816450979063) internal successors, (88854), 59324 states have internal predecessors, (88854), 7847 states have call successors, (7847), 1125 states have call predecessors, (7847), 1125 states have return successors, (7847), 7559 states have call predecessors, (7847), 7847 states have call successors, (7847) [2024-12-02 06:20:52,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68009 states to 68009 states and 104548 transitions. [2024-12-02 06:20:52,178 INFO L78 Accepts]: Start accepts. Automaton has 68009 states and 104548 transitions. Word has length 482 [2024-12-02 06:20:52,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:20:52,179 INFO L471 AbstractCegarLoop]: Abstraction has 68009 states and 104548 transitions. [2024-12-02 06:20:52,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.25) internal successors, (130), 8 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:20:52,179 INFO L276 IsEmpty]: Start isEmpty. Operand 68009 states and 104548 transitions. [2024-12-02 06:20:52,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-12-02 06:20:52,194 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:20:52,194 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:52,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 06:20:52,195 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:20:52,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:52,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1741503416, now seen corresponding path program 1 times [2024-12-02 06:20:52,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:20:52,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314055159] [2024-12-02 06:20:52,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:52,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:53,277 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:20:53,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:20:53,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314055159] [2024-12-02 06:20:53,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314055159] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:20:53,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:20:53,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:20:53,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450735164] [2024-12-02 06:20:53,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:20:53,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:20:53,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:20:53,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:20:53,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:20:53,279 INFO L87 Difference]: Start difference. First operand 68009 states and 104548 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:21:00,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:21:00,526 INFO L93 Difference]: Finished difference Result 134031 states and 206885 transitions. [2024-12-02 06:21:00,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:21:00,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 482 [2024-12-02 06:21:00,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:21:00,710 INFO L225 Difference]: With dead ends: 134031 [2024-12-02 06:21:00,711 INFO L226 Difference]: Without dead ends: 96015 [2024-12-02 06:21:00,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:21:00,762 INFO L435 NwaCegarLoop]: 486 mSDtfsCounter, 797 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:21:00,762 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 1489 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:21:00,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96015 states. [2024-12-02 06:21:06,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96015 to 65229. [2024-12-02 06:21:06,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65229 states, 56256 states have (on average 1.500462172923777) internal successors, (84410), 56544 states have internal predecessors, (84410), 7847 states have call successors, (7847), 1125 states have call predecessors, (7847), 1125 states have return successors, (7847), 7559 states have call predecessors, (7847), 7847 states have call successors, (7847) [2024-12-02 06:21:06,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65229 states to 65229 states and 100104 transitions. [2024-12-02 06:21:06,397 INFO L78 Accepts]: Start accepts. Automaton has 65229 states and 100104 transitions. Word has length 482 [2024-12-02 06:21:06,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:21:06,398 INFO L471 AbstractCegarLoop]: Abstraction has 65229 states and 100104 transitions. [2024-12-02 06:21:06,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:21:06,398 INFO L276 IsEmpty]: Start isEmpty. Operand 65229 states and 100104 transitions. [2024-12-02 06:21:06,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-12-02 06:21:06,412 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:21:06,412 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:21:06,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 06:21:06,412 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:21:06,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:21:06,413 INFO L85 PathProgramCache]: Analyzing trace with hash -2023170444, now seen corresponding path program 1 times [2024-12-02 06:21:06,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:21:06,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833851973] [2024-12-02 06:21:06,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:06,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:21:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:21:07,050 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:21:07,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:21:07,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833851973] [2024-12-02 06:21:07,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833851973] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:21:07,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:21:07,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:21:07,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159616578] [2024-12-02 06:21:07,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:21:07,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:21:07,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:21:07,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:21:07,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:21:07,052 INFO L87 Difference]: Start difference. First operand 65229 states and 100104 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 2 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2024-12-02 06:21:13,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:21:13,142 INFO L93 Difference]: Finished difference Result 149357 states and 228645 transitions. [2024-12-02 06:21:13,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:21:13,143 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 2 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) Word has length 482 [2024-12-02 06:21:13,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:21:13,333 INFO L225 Difference]: With dead ends: 149357 [2024-12-02 06:21:13,333 INFO L226 Difference]: Without dead ends: 84297 [2024-12-02 06:21:13,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:21:13,411 INFO L435 NwaCegarLoop]: 539 mSDtfsCounter, 674 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:21:13,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 1529 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:21:13,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84297 states. [2024-12-02 06:21:18,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84297 to 78451. [2024-12-02 06:21:18,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78451 states, 69370 states have (on average 1.5102205564364999) internal successors, (104764), 69694 states have internal predecessors, (104764), 7919 states have call successors, (7919), 1161 states have call predecessors, (7919), 1161 states have return successors, (7919), 7595 states have call predecessors, (7919), 7919 states have call successors, (7919) [2024-12-02 06:21:19,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78451 states to 78451 states and 120602 transitions. [2024-12-02 06:21:19,165 INFO L78 Accepts]: Start accepts. Automaton has 78451 states and 120602 transitions. Word has length 482 [2024-12-02 06:21:19,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:21:19,166 INFO L471 AbstractCegarLoop]: Abstraction has 78451 states and 120602 transitions. [2024-12-02 06:21:19,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 2 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2024-12-02 06:21:19,166 INFO L276 IsEmpty]: Start isEmpty. Operand 78451 states and 120602 transitions. [2024-12-02 06:21:19,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2024-12-02 06:21:19,184 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:21:19,184 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:21:19,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 06:21:19,184 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:21:19,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:21:19,185 INFO L85 PathProgramCache]: Analyzing trace with hash 97889981, now seen corresponding path program 1 times [2024-12-02 06:21:19,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:21:19,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501488564] [2024-12-02 06:21:19,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:19,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:21:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:21:19,718 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:21:19,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:21:19,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501488564] [2024-12-02 06:21:19,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501488564] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:21:19,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:21:19,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:21:19,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646142465] [2024-12-02 06:21:19,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:21:19,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:21:19,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:21:19,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:21:19,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:21:19,719 INFO L87 Difference]: Start difference. First operand 78451 states and 120602 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:21:35,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:21:35,418 INFO L93 Difference]: Finished difference Result 285207 states and 437962 transitions. [2024-12-02 06:21:35,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:21:35,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 483 [2024-12-02 06:21:35,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:21:35,770 INFO L225 Difference]: With dead ends: 285207 [2024-12-02 06:21:35,770 INFO L226 Difference]: Without dead ends: 229257 [2024-12-02 06:21:35,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:21:35,840 INFO L435 NwaCegarLoop]: 536 mSDtfsCounter, 841 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:21:35,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 1421 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:21:35,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229257 states. [2024-12-02 06:21:52,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229257 to 220313. [2024-12-02 06:21:52,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220313 states, 199566 states have (on average 1.5174829379754067) internal successors, (302838), 200682 states have internal predecessors, (302838), 17567 states have call successors, (17567), 3179 states have call predecessors, (17567), 3179 states have return successors, (17567), 16451 states have call predecessors, (17567), 17567 states have call successors, (17567) [2024-12-02 06:21:52,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220313 states to 220313 states and 337972 transitions. [2024-12-02 06:21:52,995 INFO L78 Accepts]: Start accepts. Automaton has 220313 states and 337972 transitions. Word has length 483 [2024-12-02 06:21:52,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:21:52,996 INFO L471 AbstractCegarLoop]: Abstraction has 220313 states and 337972 transitions. [2024-12-02 06:21:52,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:21:52,996 INFO L276 IsEmpty]: Start isEmpty. Operand 220313 states and 337972 transitions. [2024-12-02 06:21:53,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2024-12-02 06:21:53,126 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:21:53,127 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:21:53,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 06:21:53,127 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:21:53,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:21:53,128 INFO L85 PathProgramCache]: Analyzing trace with hash 240905633, now seen corresponding path program 1 times [2024-12-02 06:21:53,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:21:53,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116398131] [2024-12-02 06:21:53,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:21:53,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:21:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:21:56,197 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:21:56,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:21:56,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116398131] [2024-12-02 06:21:56,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116398131] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:21:56,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:21:56,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 06:21:56,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622740532] [2024-12-02 06:21:56,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:21:56,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 06:21:56,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:21:56,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 06:21:56,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-12-02 06:21:56,200 INFO L87 Difference]: Start difference. First operand 220313 states and 337972 transitions. Second operand has 11 states, 11 states have (on average 11.909090909090908) internal successors, (131), 11 states have internal predecessors, (131), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:22:28,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:22:28,989 INFO L93 Difference]: Finished difference Result 710207 states and 1083657 transitions. [2024-12-02 06:22:28,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 06:22:28,990 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.909090909090908) internal successors, (131), 11 states have internal predecessors, (131), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 483 [2024-12-02 06:22:28,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:22:30,364 INFO L225 Difference]: With dead ends: 710207 [2024-12-02 06:22:30,364 INFO L226 Difference]: Without dead ends: 490071 [2024-12-02 06:22:30,590 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 06:22:30,592 INFO L435 NwaCegarLoop]: 362 mSDtfsCounter, 1681 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1681 SdHoareTripleChecker+Valid, 1704 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:22:30,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1681 Valid, 1704 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 06:22:30,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490071 states. [2024-12-02 06:22:49,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490071 to 250751. [2024-12-02 06:22:49,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250751 states, 230004 states have (on average 1.525895201822577) internal successors, (350962), 231120 states have internal predecessors, (350962), 17567 states have call successors, (17567), 3179 states have call predecessors, (17567), 3179 states have return successors, (17567), 16451 states have call predecessors, (17567), 17567 states have call successors, (17567) [2024-12-02 06:22:50,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250751 states to 250751 states and 386096 transitions. [2024-12-02 06:22:50,145 INFO L78 Accepts]: Start accepts. Automaton has 250751 states and 386096 transitions. Word has length 483 [2024-12-02 06:22:50,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:22:50,146 INFO L471 AbstractCegarLoop]: Abstraction has 250751 states and 386096 transitions. [2024-12-02 06:22:50,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.909090909090908) internal successors, (131), 11 states have internal predecessors, (131), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:22:50,146 INFO L276 IsEmpty]: Start isEmpty. Operand 250751 states and 386096 transitions. [2024-12-02 06:22:50,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2024-12-02 06:22:50,554 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:22:50,554 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:22:50,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 06:22:50,555 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:22:50,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:22:50,556 INFO L85 PathProgramCache]: Analyzing trace with hash 151312829, now seen corresponding path program 1 times [2024-12-02 06:22:50,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:22:50,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546593655] [2024-12-02 06:22:50,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:22:50,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:22:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:22:51,533 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:22:51,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:22:51,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546593655] [2024-12-02 06:22:51,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546593655] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:22:51,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:22:51,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:22:51,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176650665] [2024-12-02 06:22:51,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:22:51,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:22:51,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:22:51,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:22:51,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:22:51,536 INFO L87 Difference]: Start difference. First operand 250751 states and 386096 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:23:21,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:23:21,362 INFO L93 Difference]: Finished difference Result 751899 states and 1157798 transitions. [2024-12-02 06:23:21,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:23:21,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 483 [2024-12-02 06:23:21,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:23:22,393 INFO L225 Difference]: With dead ends: 751899 [2024-12-02 06:23:22,394 INFO L226 Difference]: Without dead ends: 501325 [2024-12-02 06:23:22,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:23:22,631 INFO L435 NwaCegarLoop]: 370 mSDtfsCounter, 390 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:23:22,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 1121 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:23:22,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501325 states. [2024-12-02 06:23:56,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501325 to 501323. [2024-12-02 06:23:56,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501323 states, 459912 states have (on average 1.5236393049105046) internal successors, (700740), 462144 states have internal predecessors, (700740), 35063 states have call successors, (35063), 6347 states have call predecessors, (35063), 6347 states have return successors, (35063), 32831 states have call predecessors, (35063), 35063 states have call successors, (35063) [2024-12-02 06:23:58,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501323 states to 501323 states and 770866 transitions. [2024-12-02 06:23:58,318 INFO L78 Accepts]: Start accepts. Automaton has 501323 states and 770866 transitions. Word has length 483 [2024-12-02 06:23:58,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:23:58,319 INFO L471 AbstractCegarLoop]: Abstraction has 501323 states and 770866 transitions. [2024-12-02 06:23:58,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:23:58,319 INFO L276 IsEmpty]: Start isEmpty. Operand 501323 states and 770866 transitions. [2024-12-02 06:23:58,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2024-12-02 06:23:58,478 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:23:58,478 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:23:58,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 06:23:58,478 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:23:58,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:23:58,479 INFO L85 PathProgramCache]: Analyzing trace with hash -549751749, now seen corresponding path program 1 times [2024-12-02 06:23:58,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:23:58,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328584368] [2024-12-02 06:23:58,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:23:58,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:24:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:24:01,932 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 18 proven. 192 refuted. 0 times theorem prover too weak. 9730 trivial. 0 not checked. [2024-12-02 06:24:01,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:24:01,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328584368] [2024-12-02 06:24:01,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328584368] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:24:01,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963879364] [2024-12-02 06:24:01,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:24:01,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:24:01,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:24:01,934 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:24:01,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 06:24:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:24:02,404 INFO L256 TraceCheckSpWp]: Trace formula consists of 1188 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 06:24:02,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:24:03,054 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 4110 proven. 150 refuted. 0 times theorem prover too weak. 5680 trivial. 0 not checked. [2024-12-02 06:24:03,055 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:24:03,584 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 60 proven. 150 refuted. 0 times theorem prover too weak. 9730 trivial. 0 not checked. [2024-12-02 06:24:03,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963879364] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:24:03,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:24:03,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 13 [2024-12-02 06:24:03,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630789321] [2024-12-02 06:24:03,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:24:03,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 06:24:03,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:24:03,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 06:24:03,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:24:03,587 INFO L87 Difference]: Start difference. First operand 501323 states and 770866 transitions. Second operand has 13 states, 13 states have (on average 17.923076923076923) internal successors, (233), 13 states have internal predecessors, (233), 3 states have call successors, (185), 2 states have call predecessors, (185), 4 states have return successors, (187), 3 states have call predecessors, (187), 3 states have call successors, (187) [2024-12-02 06:24:41,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:24:41,380 INFO L93 Difference]: Finished difference Result 927627 states and 1414707 transitions. [2024-12-02 06:24:41,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 06:24:41,381 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 17.923076923076923) internal successors, (233), 13 states have internal predecessors, (233), 3 states have call successors, (185), 2 states have call predecessors, (185), 4 states have return successors, (187), 3 states have call predecessors, (187), 3 states have call successors, (187) Word has length 483 [2024-12-02 06:24:41,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:24:42,503 INFO L225 Difference]: With dead ends: 927627 [2024-12-02 06:24:42,503 INFO L226 Difference]: Without dead ends: 426481 [2024-12-02 06:24:42,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 998 GetRequests, 967 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=260, Invalid=732, Unknown=0, NotChecked=0, Total=992 [2024-12-02 06:24:42,836 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 1712 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 1845 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:24:42,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 1845 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 06:24:43,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426481 states. [2024-12-02 06:25:00,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426481 to 192533. [2024-12-02 06:25:00,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192533 states, 177183 states have (on average 1.497034139844116) internal successors, (265249), 178215 states have internal predecessors, (265249), 12095 states have call successors, (12095), 3254 states have call predecessors, (12095), 3254 states have return successors, (12095), 11063 states have call predecessors, (12095), 12095 states have call successors, (12095) [2024-12-02 06:25:01,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192533 states to 192533 states and 289439 transitions. [2024-12-02 06:25:01,234 INFO L78 Accepts]: Start accepts. Automaton has 192533 states and 289439 transitions. Word has length 483 [2024-12-02 06:25:01,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:25:01,234 INFO L471 AbstractCegarLoop]: Abstraction has 192533 states and 289439 transitions. [2024-12-02 06:25:01,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 17.923076923076923) internal successors, (233), 13 states have internal predecessors, (233), 3 states have call successors, (185), 2 states have call predecessors, (185), 4 states have return successors, (187), 3 states have call predecessors, (187), 3 states have call successors, (187) [2024-12-02 06:25:01,235 INFO L276 IsEmpty]: Start isEmpty. Operand 192533 states and 289439 transitions. [2024-12-02 06:25:01,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2024-12-02 06:25:01,293 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:25:01,293 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:25:01,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 06:25:01,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-02 06:25:01,494 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:25:01,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:25:01,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1074010542, now seen corresponding path program 1 times [2024-12-02 06:25:01,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:25:01,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755059985] [2024-12-02 06:25:01,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:25:01,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:25:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:25:02,715 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 66 proven. 144 refuted. 0 times theorem prover too weak. 9730 trivial. 0 not checked. [2024-12-02 06:25:02,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:25:02,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755059985] [2024-12-02 06:25:02,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755059985] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:25:02,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712228282] [2024-12-02 06:25:02,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:25:02,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:25:02,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:25:02,717 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:25:02,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 06:25:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:25:03,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 1187 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 06:25:03,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:25:03,716 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 5038 proven. 102 refuted. 0 times theorem prover too weak. 4800 trivial. 0 not checked. [2024-12-02 06:25:03,716 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:25:04,042 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 108 proven. 102 refuted. 0 times theorem prover too weak. 9730 trivial. 0 not checked. [2024-12-02 06:25:04,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712228282] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:25:04,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:25:04,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2024-12-02 06:25:04,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232257557] [2024-12-02 06:25:04,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:25:04,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:25:04,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:25:04,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:25:04,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:25:04,045 INFO L87 Difference]: Start difference. First operand 192533 states and 289439 transitions. Second operand has 10 states, 10 states have (on average 26.1) internal successors, (261), 10 states have internal predecessors, (261), 5 states have call successors, (153), 2 states have call predecessors, (153), 4 states have return successors, (155), 5 states have call predecessors, (155), 5 states have call successors, (155) [2024-12-02 06:25:20,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:25:20,579 INFO L93 Difference]: Finished difference Result 383957 states and 575956 transitions. [2024-12-02 06:25:20,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 06:25:20,580 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 26.1) internal successors, (261), 10 states have internal predecessors, (261), 5 states have call successors, (153), 2 states have call predecessors, (153), 4 states have return successors, (155), 5 states have call predecessors, (155), 5 states have call successors, (155) Word has length 483 [2024-12-02 06:25:20,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:25:21,115 INFO L225 Difference]: With dead ends: 383957 [2024-12-02 06:25:21,115 INFO L226 Difference]: Without dead ends: 191613 [2024-12-02 06:25:21,224 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 979 GetRequests, 963 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2024-12-02 06:25:21,225 INFO L435 NwaCegarLoop]: 302 mSDtfsCounter, 802 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:25:21,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 763 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:25:21,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191613 states. [2024-12-02 06:25:38,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191613 to 184671. [2024-12-02 06:25:38,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184671 states, 169079 states have (on average 1.4810414066797177) internal successors, (250413), 170111 states have internal predecessors, (250413), 12095 states have call successors, (12095), 3496 states have call predecessors, (12095), 3496 states have return successors, (12095), 11063 states have call predecessors, (12095), 12095 states have call successors, (12095) [2024-12-02 06:25:38,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184671 states to 184671 states and 274603 transitions. [2024-12-02 06:25:38,705 INFO L78 Accepts]: Start accepts. Automaton has 184671 states and 274603 transitions. Word has length 483 [2024-12-02 06:25:38,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:25:38,706 INFO L471 AbstractCegarLoop]: Abstraction has 184671 states and 274603 transitions. [2024-12-02 06:25:38,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 26.1) internal successors, (261), 10 states have internal predecessors, (261), 5 states have call successors, (153), 2 states have call predecessors, (153), 4 states have return successors, (155), 5 states have call predecessors, (155), 5 states have call successors, (155) [2024-12-02 06:25:38,706 INFO L276 IsEmpty]: Start isEmpty. Operand 184671 states and 274603 transitions. [2024-12-02 06:25:38,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2024-12-02 06:25:38,760 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:25:38,760 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:25:38,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 06:25:38,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:25:38,961 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:25:38,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:25:38,961 INFO L85 PathProgramCache]: Analyzing trace with hash 307286295, now seen corresponding path program 1 times [2024-12-02 06:25:38,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:25:38,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588971426] [2024-12-02 06:25:38,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:25:38,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:25:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:25:39,996 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:25:39,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:25:39,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588971426] [2024-12-02 06:25:39,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588971426] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:25:39,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:25:39,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:25:39,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600056056] [2024-12-02 06:25:39,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:25:39,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:25:39,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:25:39,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:25:39,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:25:39,998 INFO L87 Difference]: Start difference. First operand 184671 states and 274603 transitions. Second operand has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:26:02,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:26:02,387 INFO L93 Difference]: Finished difference Result 381399 states and 568632 transitions. [2024-12-02 06:26:02,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 06:26:02,388 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 484 [2024-12-02 06:26:02,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:26:02,825 INFO L225 Difference]: With dead ends: 381399 [2024-12-02 06:26:02,826 INFO L226 Difference]: Without dead ends: 281413 [2024-12-02 06:26:02,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:26:02,919 INFO L435 NwaCegarLoop]: 565 mSDtfsCounter, 1871 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1871 SdHoareTripleChecker+Valid, 2313 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 337 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:26:02,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1871 Valid, 2313 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [337 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 06:26:03,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281413 states. [2024-12-02 06:26:21,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281413 to 195473. [2024-12-02 06:26:21,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195473 states, 178781 states have (on average 1.4782722996291553) internal successors, (264287), 179903 states have internal predecessors, (264287), 12917 states have call successors, (12917), 3774 states have call predecessors, (12917), 3774 states have return successors, (12917), 11795 states have call predecessors, (12917), 12917 states have call successors, (12917) [2024-12-02 06:26:21,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195473 states to 195473 states and 290121 transitions. [2024-12-02 06:26:21,619 INFO L78 Accepts]: Start accepts. Automaton has 195473 states and 290121 transitions. Word has length 484 [2024-12-02 06:26:21,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:26:21,620 INFO L471 AbstractCegarLoop]: Abstraction has 195473 states and 290121 transitions. [2024-12-02 06:26:21,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:26:21,620 INFO L276 IsEmpty]: Start isEmpty. Operand 195473 states and 290121 transitions. [2024-12-02 06:26:21,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2024-12-02 06:26:21,682 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:26:21,682 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:26:21,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 06:26:21,682 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:26:21,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:26:21,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1094821735, now seen corresponding path program 1 times [2024-12-02 06:26:21,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:26:21,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145692283] [2024-12-02 06:26:21,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:26:21,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:26:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:26:22,319 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-12-02 06:26:22,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:26:22,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145692283] [2024-12-02 06:26:22,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145692283] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:26:22,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:26:22,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:26:22,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763080678] [2024-12-02 06:26:22,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:26:22,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:26:22,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:26:22,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:26:22,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:26:22,321 INFO L87 Difference]: Start difference. First operand 195473 states and 290121 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:26:59,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:26:59,144 INFO L93 Difference]: Finished difference Result 446549 states and 663309 transitions. [2024-12-02 06:26:59,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:26:59,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 484 [2024-12-02 06:26:59,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:26:59,694 INFO L225 Difference]: With dead ends: 446549 [2024-12-02 06:26:59,695 INFO L226 Difference]: Without dead ends: 363191 [2024-12-02 06:26:59,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:26:59,787 INFO L435 NwaCegarLoop]: 913 mSDtfsCounter, 732 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 2244 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:26:59,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 2244 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:26:59,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363191 states. [2024-12-02 06:27:27,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363191 to 302921. [2024-12-02 06:27:28,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302921 states, 279505 states have (on average 1.4895153932845566) internal successors, (416327), 281053 states have internal predecessors, (416327), 18107 states have call successors, (18107), 5308 states have call predecessors, (18107), 5308 states have return successors, (18107), 16559 states have call predecessors, (18107), 18107 states have call successors, (18107) [2024-12-02 06:27:28,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302921 states to 302921 states and 452541 transitions. [2024-12-02 06:27:28,848 INFO L78 Accepts]: Start accepts. Automaton has 302921 states and 452541 transitions. Word has length 484 [2024-12-02 06:27:28,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:27:28,849 INFO L471 AbstractCegarLoop]: Abstraction has 302921 states and 452541 transitions. [2024-12-02 06:27:28,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-12-02 06:27:28,849 INFO L276 IsEmpty]: Start isEmpty. Operand 302921 states and 452541 transitions. [2024-12-02 06:27:29,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2024-12-02 06:27:29,158 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:27:29,158 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:27:29,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 06:27:29,159 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:27:29,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:27:29,160 INFO L85 PathProgramCache]: Analyzing trace with hash -954273125, now seen corresponding path program 1 times [2024-12-02 06:27:29,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:27:29,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746770362] [2024-12-02 06:27:29,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:27:29,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:27:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:27:34,790 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 57 proven. 153 refuted. 0 times theorem prover too weak. 9730 trivial. 0 not checked. [2024-12-02 06:27:34,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:27:34,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746770362] [2024-12-02 06:27:34,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746770362] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:27:34,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471203170] [2024-12-02 06:27:34,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:27:34,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:27:34,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:27:34,798 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:27:34,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 06:27:35,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:27:35,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 1194 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 06:27:35,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:27:35,946 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 4830 proven. 126 refuted. 0 times theorem prover too weak. 4984 trivial. 0 not checked. [2024-12-02 06:27:35,947 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:27:36,448 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 84 proven. 126 refuted. 0 times theorem prover too weak. 9730 trivial. 0 not checked. [2024-12-02 06:27:36,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471203170] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:27:36,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:27:36,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-12-02 06:27:36,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513738828] [2024-12-02 06:27:36,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:27:36,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:27:36,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:27:36,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:27:36,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:27:36,453 INFO L87 Difference]: Start difference. First operand 302921 states and 452541 transitions. Second operand has 8 states, 8 states have (on average 24.25) internal successors, (194), 8 states have internal predecessors, (194), 3 states have call successors, (164), 2 states have call predecessors, (164), 4 states have return successors, (166), 3 states have call predecessors, (166), 3 states have call successors, (166) [2024-12-02 06:27:58,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:27:58,822 INFO L93 Difference]: Finished difference Result 477309 states and 709533 transitions. [2024-12-02 06:27:58,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 06:27:58,823 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.25) internal successors, (194), 8 states have internal predecessors, (194), 3 states have call successors, (164), 2 states have call predecessors, (164), 4 states have return successors, (166), 3 states have call predecessors, (166), 3 states have call successors, (166) Word has length 484 [2024-12-02 06:27:58,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:27:59,840 INFO L225 Difference]: With dead ends: 477309 [2024-12-02 06:27:59,840 INFO L226 Difference]: Without dead ends: 174585 [2024-12-02 06:28:00,139 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 981 GetRequests, 965 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2024-12-02 06:28:00,140 INFO L435 NwaCegarLoop]: 297 mSDtfsCounter, 393 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:28:00,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 750 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:28:00,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174585 states. [2024-12-02 06:28:20,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174585 to 173181. [2024-12-02 06:28:20,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173181 states, 156220 states have (on average 1.4599027013186532) internal successors, (228066), 157228 states have internal predecessors, (228066), 13175 states have call successors, (13175), 3785 states have call predecessors, (13175), 3785 states have return successors, (13175), 12167 states have call predecessors, (13175), 13175 states have call successors, (13175) [2024-12-02 06:28:20,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173181 states to 173181 states and 254416 transitions. [2024-12-02 06:28:21,001 INFO L78 Accepts]: Start accepts. Automaton has 173181 states and 254416 transitions. Word has length 484 [2024-12-02 06:28:21,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:28:21,002 INFO L471 AbstractCegarLoop]: Abstraction has 173181 states and 254416 transitions. [2024-12-02 06:28:21,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.25) internal successors, (194), 8 states have internal predecessors, (194), 3 states have call successors, (164), 2 states have call predecessors, (164), 4 states have return successors, (166), 3 states have call predecessors, (166), 3 states have call successors, (166) [2024-12-02 06:28:21,002 INFO L276 IsEmpty]: Start isEmpty. Operand 173181 states and 254416 transitions. [2024-12-02 06:28:21,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2024-12-02 06:28:21,254 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:28:21,254 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:28:21,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-12-02 06:28:21,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbcf47b-5703-48ec-9de5-ab6a33062984/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-12-02 06:28:21,455 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:28:21,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:28:21,456 INFO L85 PathProgramCache]: Analyzing trace with hash -277377657, now seen corresponding path program 1 times [2024-12-02 06:28:21,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:28:21,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790963895] [2024-12-02 06:28:21,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:28:21,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:28:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat