./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c --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_87253316-692e-479f-876e-689d84d6e0ad/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87253316-692e-479f-876e-689d84d6e0ad/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_87253316-692e-479f-876e-689d84d6e0ad/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87253316-692e-479f-876e-689d84d6e0ad/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87253316-692e-479f-876e-689d84d6e0ad/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_87253316-692e-479f-876e-689d84d6e0ad/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 35eb4fe61244b47e62120cf84d8eaed931ae7a7b0a5140717764703691b11b75 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 05:50:38,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 05:50:38,354 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87253316-692e-479f-876e-689d84d6e0ad/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 05:50:38,359 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 05:50:38,359 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 05:50:38,379 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 05:50:38,380 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 05:50:38,380 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 05:50:38,380 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 05:50:38,380 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 05:50:38,380 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 05:50:38,381 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 05:50:38,381 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 05:50:38,381 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 05:50:38,381 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 05:50:38,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 05:50:38,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 05:50:38,381 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 05:50:38,382 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 05:50:38,382 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 05:50:38,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 05:50:38,382 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 05:50:38,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 05:50:38,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 05:50:38,382 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 05:50:38,382 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 05:50:38,382 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 05:50:38,382 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 05:50:38,383 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 05:50:38,383 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:50:38,383 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:50:38,383 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:50:38,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:50:38,383 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 05:50:38,383 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:50:38,383 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:50:38,383 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:50:38,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:50:38,383 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 05:50:38,383 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 05:50:38,384 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 05:50:38,384 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 05:50:38,384 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 05:50:38,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 05:50:38,384 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 05:50:38,384 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 05:50:38,384 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 05:50:38,384 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 05:50:38,384 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_87253316-692e-479f-876e-689d84d6e0ad/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 -> 35eb4fe61244b47e62120cf84d8eaed931ae7a7b0a5140717764703691b11b75 [2024-12-02 05:50:38,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 05:50:38,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 05:50:38,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 05:50:38,597 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 05:50:38,597 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 05:50:38,598 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87253316-692e-479f-876e-689d84d6e0ad/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2024-12-02 05:50:41,282 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87253316-692e-479f-876e-689d84d6e0ad/bin/uautomizer-verify-84ZbGMXZE1/data/c56106a35/e97a5d4f94d441778562e75beef234cb/FLAG122e81a81 [2024-12-02 05:50:41,489 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 05:50:41,490 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87253316-692e-479f-876e-689d84d6e0ad/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2024-12-02 05:50:41,498 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87253316-692e-479f-876e-689d84d6e0ad/bin/uautomizer-verify-84ZbGMXZE1/data/c56106a35/e97a5d4f94d441778562e75beef234cb/FLAG122e81a81 [2024-12-02 05:50:41,848 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87253316-692e-479f-876e-689d84d6e0ad/bin/uautomizer-verify-84ZbGMXZE1/data/c56106a35/e97a5d4f94d441778562e75beef234cb [2024-12-02 05:50:41,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 05:50:41,851 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 05:50:41,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 05:50:41,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 05:50:41,855 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 05:50:41,856 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:50:41" (1/1) ... [2024-12-02 05:50:41,856 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69576a48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:41, skipping insertion in model container [2024-12-02 05:50:41,856 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:50:41" (1/1) ... [2024-12-02 05:50:41,892 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 05:50:42,121 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_87253316-692e-479f-876e-689d84d6e0ad/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c[10021,10034] [2024-12-02 05:50:42,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:50:42,194 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 05:50:42,261 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_87253316-692e-479f-876e-689d84d6e0ad/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c[10021,10034] [2024-12-02 05:50:42,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:50:42,316 INFO L204 MainTranslator]: Completed translation [2024-12-02 05:50:42,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:42 WrapperNode [2024-12-02 05:50:42,317 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 05:50:42,318 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 05:50:42,318 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 05:50:42,318 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 05:50:42,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:42" (1/1) ... [2024-12-02 05:50:42,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:42" (1/1) ... [2024-12-02 05:50:42,371 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1021 [2024-12-02 05:50:42,371 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 05:50:42,372 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 05:50:42,372 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 05:50:42,372 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 05:50:42,380 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:42" (1/1) ... [2024-12-02 05:50:42,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:42" (1/1) ... [2024-12-02 05:50:42,384 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:42" (1/1) ... [2024-12-02 05:50:42,402 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 05:50:42,403 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:42" (1/1) ... [2024-12-02 05:50:42,403 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:42" (1/1) ... [2024-12-02 05:50:42,415 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:42" (1/1) ... [2024-12-02 05:50:42,417 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:42" (1/1) ... [2024-12-02 05:50:42,424 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:42" (1/1) ... [2024-12-02 05:50:42,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:42" (1/1) ... [2024-12-02 05:50:42,429 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:42" (1/1) ... [2024-12-02 05:50:42,434 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 05:50:42,435 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 05:50:42,435 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 05:50:42,435 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 05:50:42,436 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:42" (1/1) ... [2024-12-02 05:50:42,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:50:42,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87253316-692e-479f-876e-689d84d6e0ad/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:50:42,471 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87253316-692e-479f-876e-689d84d6e0ad/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 05:50:42,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87253316-692e-479f-876e-689d84d6e0ad/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 05:50:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 05:50:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 05:50:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 05:50:42,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 05:50:42,621 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 05:50:42,623 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 05:50:43,433 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-12-02 05:50:43,434 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 05:50:43,449 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 05:50:43,449 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 05:50:43,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:50:43 BoogieIcfgContainer [2024-12-02 05:50:43,450 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 05:50:43,452 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 05:50:43,452 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 05:50:43,455 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 05:50:43,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:50:41" (1/3) ... [2024-12-02 05:50:43,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b1cc92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:50:43, skipping insertion in model container [2024-12-02 05:50:43,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:50:42" (2/3) ... [2024-12-02 05:50:43,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b1cc92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:50:43, skipping insertion in model container [2024-12-02 05:50:43,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:50:43" (3/3) ... [2024-12-02 05:50:43,458 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2024-12-02 05:50:43,470 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 05:50:43,473 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c that has 1 procedures, 250 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 05:50:43,540 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 05:50:43,550 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;@20121198, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 05:50:43,550 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 05:50:43,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 250 states, 248 states have (on average 1.7258064516129032) internal successors, (428), 249 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:43,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 05:50:43,561 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:43,562 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:43,562 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:43,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:43,566 INFO L85 PathProgramCache]: Analyzing trace with hash 680840216, now seen corresponding path program 1 times [2024-12-02 05:50:43,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:43,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235219959] [2024-12-02 05:50:43,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:43,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:44,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:44,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:44,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235219959] [2024-12-02 05:50:44,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235219959] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:44,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:44,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:50:44,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352730262] [2024-12-02 05:50:44,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:44,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:50:44,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:44,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:50:44,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:50:44,217 INFO L87 Difference]: Start difference. First operand has 250 states, 248 states have (on average 1.7258064516129032) internal successors, (428), 249 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:44,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:44,576 INFO L93 Difference]: Finished difference Result 1120 states and 1817 transitions. [2024-12-02 05:50:44,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:50:44,577 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-12-02 05:50:44,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:44,591 INFO L225 Difference]: With dead ends: 1120 [2024-12-02 05:50:44,592 INFO L226 Difference]: Without dead ends: 984 [2024-12-02 05:50:44,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-12-02 05:50:44,598 INFO L435 NwaCegarLoop]: 435 mSDtfsCounter, 4180 mSDsluCounter, 3265 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4180 SdHoareTripleChecker+Valid, 3700 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:44,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4180 Valid, 3700 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:50:44,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2024-12-02 05:50:44,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 382. [2024-12-02 05:50:44,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 381 states have (on average 1.4986876640419948) internal successors, (571), 381 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:44,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 571 transitions. [2024-12-02 05:50:44,656 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 571 transitions. Word has length 96 [2024-12-02 05:50:44,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:44,657 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 571 transitions. [2024-12-02 05:50:44,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:44,657 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 571 transitions. [2024-12-02 05:50:44,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 05:50:44,660 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:44,660 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:44,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 05:50:44,660 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:44,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:44,661 INFO L85 PathProgramCache]: Analyzing trace with hash -693931319, now seen corresponding path program 1 times [2024-12-02 05:50:44,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:44,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976313249] [2024-12-02 05:50:44,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:44,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:44,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:45,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:45,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:45,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976313249] [2024-12-02 05:50:45,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976313249] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:45,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:45,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:50:45,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649048737] [2024-12-02 05:50:45,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:45,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:50:45,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:45,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:50:45,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:50:45,063 INFO L87 Difference]: Start difference. First operand 382 states and 571 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:45,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:45,393 INFO L93 Difference]: Finished difference Result 1909 states and 2955 transitions. [2024-12-02 05:50:45,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:50:45,394 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-12-02 05:50:45,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:45,400 INFO L225 Difference]: With dead ends: 1909 [2024-12-02 05:50:45,400 INFO L226 Difference]: Without dead ends: 1623 [2024-12-02 05:50:45,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:50:45,402 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 1585 mSDsluCounter, 1745 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1585 SdHoareTripleChecker+Valid, 2466 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:45,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1585 Valid, 2466 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 05:50:45,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2024-12-02 05:50:45,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1613. [2024-12-02 05:50:45,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1613 states, 1612 states have (on average 1.5446650124069479) internal successors, (2490), 1612 states have internal predecessors, (2490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:45,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 2490 transitions. [2024-12-02 05:50:45,443 INFO L78 Accepts]: Start accepts. Automaton has 1613 states and 2490 transitions. Word has length 97 [2024-12-02 05:50:45,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:45,444 INFO L471 AbstractCegarLoop]: Abstraction has 1613 states and 2490 transitions. [2024-12-02 05:50:45,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:45,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1613 states and 2490 transitions. [2024-12-02 05:50:45,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-12-02 05:50:45,448 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:45,448 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:45,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 05:50:45,449 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:45,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:45,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1453946111, now seen corresponding path program 1 times [2024-12-02 05:50:45,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:45,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446608410] [2024-12-02 05:50:45,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:45,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:45,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:45,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:45,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446608410] [2024-12-02 05:50:45,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446608410] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:45,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:45,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:50:45,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199163588] [2024-12-02 05:50:45,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:45,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:50:45,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:45,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:50:45,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:50:45,620 INFO L87 Difference]: Start difference. First operand 1613 states and 2490 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:45,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:45,943 INFO L93 Difference]: Finished difference Result 4341 states and 6773 transitions. [2024-12-02 05:50:45,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:50:45,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-12-02 05:50:45,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:45,951 INFO L225 Difference]: With dead ends: 4341 [2024-12-02 05:50:45,952 INFO L226 Difference]: Without dead ends: 2815 [2024-12-02 05:50:45,953 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:50:45,954 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 1367 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:45,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1367 Valid, 344 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 05:50:45,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2024-12-02 05:50:45,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2813. [2024-12-02 05:50:45,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2813 states, 2812 states have (on average 1.5526315789473684) internal successors, (4366), 2812 states have internal predecessors, (4366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:46,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2813 states to 2813 states and 4366 transitions. [2024-12-02 05:50:46,004 INFO L78 Accepts]: Start accepts. Automaton has 2813 states and 4366 transitions. Word has length 98 [2024-12-02 05:50:46,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:46,005 INFO L471 AbstractCegarLoop]: Abstraction has 2813 states and 4366 transitions. [2024-12-02 05:50:46,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:46,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2813 states and 4366 transitions. [2024-12-02 05:50:46,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-12-02 05:50:46,007 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:46,007 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:46,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 05:50:46,007 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:46,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:46,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1726044558, now seen corresponding path program 1 times [2024-12-02 05:50:46,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:46,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455922751] [2024-12-02 05:50:46,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:46,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:46,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:46,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:46,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455922751] [2024-12-02 05:50:46,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455922751] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:46,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:46,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:50:46,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564419644] [2024-12-02 05:50:46,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:46,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:50:46,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:46,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:50:46,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:50:46,171 INFO L87 Difference]: Start difference. First operand 2813 states and 4366 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:46,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:46,471 INFO L93 Difference]: Finished difference Result 7797 states and 12184 transitions. [2024-12-02 05:50:46,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:50:46,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-12-02 05:50:46,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:46,483 INFO L225 Difference]: With dead ends: 7797 [2024-12-02 05:50:46,483 INFO L226 Difference]: Without dead ends: 5101 [2024-12-02 05:50:46,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:50:46,487 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 1329 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:46,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 346 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:50:46,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5101 states. [2024-12-02 05:50:46,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5101 to 5099. [2024-12-02 05:50:46,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5099 states, 5098 states have (on average 1.5545311887014515) internal successors, (7925), 5098 states have internal predecessors, (7925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:46,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5099 states to 5099 states and 7925 transitions. [2024-12-02 05:50:46,581 INFO L78 Accepts]: Start accepts. Automaton has 5099 states and 7925 transitions. Word has length 98 [2024-12-02 05:50:46,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:46,581 INFO L471 AbstractCegarLoop]: Abstraction has 5099 states and 7925 transitions. [2024-12-02 05:50:46,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:46,581 INFO L276 IsEmpty]: Start isEmpty. Operand 5099 states and 7925 transitions. [2024-12-02 05:50:46,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-12-02 05:50:46,585 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:46,585 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:46,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 05:50:46,585 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:46,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:46,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1050081644, now seen corresponding path program 1 times [2024-12-02 05:50:46,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:46,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568622525] [2024-12-02 05:50:46,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:46,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:46,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:46,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:46,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:46,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568622525] [2024-12-02 05:50:46,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568622525] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:46,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:46,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:50:46,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914875768] [2024-12-02 05:50:46,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:46,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:50:46,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:46,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:50:46,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:50:46,710 INFO L87 Difference]: Start difference. First operand 5099 states and 7925 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:47,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:47,048 INFO L93 Difference]: Finished difference Result 14365 states and 22445 transitions. [2024-12-02 05:50:47,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:50:47,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-12-02 05:50:47,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:47,066 INFO L225 Difference]: With dead ends: 14365 [2024-12-02 05:50:47,066 INFO L226 Difference]: Without dead ends: 9461 [2024-12-02 05:50:47,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:50:47,070 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 1279 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:47,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 359 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:50:47,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9461 states. [2024-12-02 05:50:47,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9461 to 9459. [2024-12-02 05:50:47,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9459 states, 9458 states have (on average 1.5558257559737787) internal successors, (14715), 9458 states have internal predecessors, (14715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:47,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9459 states to 9459 states and 14715 transitions. [2024-12-02 05:50:47,237 INFO L78 Accepts]: Start accepts. Automaton has 9459 states and 14715 transitions. Word has length 98 [2024-12-02 05:50:47,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:47,237 INFO L471 AbstractCegarLoop]: Abstraction has 9459 states and 14715 transitions. [2024-12-02 05:50:47,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:47,237 INFO L276 IsEmpty]: Start isEmpty. Operand 9459 states and 14715 transitions. [2024-12-02 05:50:47,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-12-02 05:50:47,239 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:47,240 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:47,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 05:50:47,240 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:47,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:47,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1204309923, now seen corresponding path program 1 times [2024-12-02 05:50:47,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:47,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114138278] [2024-12-02 05:50:47,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:47,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:47,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:47,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:47,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114138278] [2024-12-02 05:50:47,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114138278] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:47,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:47,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:50:47,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217221354] [2024-12-02 05:50:47,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:47,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:50:47,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:47,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:50:47,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:50:47,387 INFO L87 Difference]: Start difference. First operand 9459 states and 14715 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:47,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:47,719 INFO L93 Difference]: Finished difference Result 27518 states and 42910 transitions. [2024-12-02 05:50:47,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:50:47,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-12-02 05:50:47,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:47,765 INFO L225 Difference]: With dead ends: 27518 [2024-12-02 05:50:47,765 INFO L226 Difference]: Without dead ends: 18213 [2024-12-02 05:50:47,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:50:47,777 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 1285 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:47,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1285 Valid, 348 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:50:47,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18213 states. [2024-12-02 05:50:48,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18213 to 18211. [2024-12-02 05:50:48,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18211 states, 18210 states have (on average 1.5523887973640857) internal successors, (28269), 18210 states have internal predecessors, (28269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:48,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18211 states to 18211 states and 28269 transitions. [2024-12-02 05:50:48,104 INFO L78 Accepts]: Start accepts. Automaton has 18211 states and 28269 transitions. Word has length 98 [2024-12-02 05:50:48,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:48,104 INFO L471 AbstractCegarLoop]: Abstraction has 18211 states and 28269 transitions. [2024-12-02 05:50:48,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:48,105 INFO L276 IsEmpty]: Start isEmpty. Operand 18211 states and 28269 transitions. [2024-12-02 05:50:48,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-12-02 05:50:48,109 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:48,109 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:48,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 05:50:48,110 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:48,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:48,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1872069296, now seen corresponding path program 1 times [2024-12-02 05:50:48,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:48,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815348296] [2024-12-02 05:50:48,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:48,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:48,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:48,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:48,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815348296] [2024-12-02 05:50:48,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815348296] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:48,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:48,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:50:48,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511699062] [2024-12-02 05:50:48,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:48,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:50:48,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:48,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:50:48,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:50:48,317 INFO L87 Difference]: Start difference. First operand 18211 states and 28269 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:48,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:48,760 INFO L93 Difference]: Finished difference Result 54168 states and 84194 transitions. [2024-12-02 05:50:48,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:50:48,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-12-02 05:50:48,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:48,847 INFO L225 Difference]: With dead ends: 54168 [2024-12-02 05:50:48,847 INFO L226 Difference]: Without dead ends: 36021 [2024-12-02 05:50:48,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:50:48,866 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 1371 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:48,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1371 Valid, 344 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 05:50:48,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36021 states. [2024-12-02 05:50:49,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36021 to 36019. [2024-12-02 05:50:49,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36019 states, 36018 states have (on average 1.5457271364317842) internal successors, (55674), 36018 states have internal predecessors, (55674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:49,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36019 states to 36019 states and 55674 transitions. [2024-12-02 05:50:49,439 INFO L78 Accepts]: Start accepts. Automaton has 36019 states and 55674 transitions. Word has length 98 [2024-12-02 05:50:49,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:49,439 INFO L471 AbstractCegarLoop]: Abstraction has 36019 states and 55674 transitions. [2024-12-02 05:50:49,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:49,439 INFO L276 IsEmpty]: Start isEmpty. Operand 36019 states and 55674 transitions. [2024-12-02 05:50:49,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 05:50:49,446 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:49,446 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:49,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 05:50:49,446 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:49,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:49,447 INFO L85 PathProgramCache]: Analyzing trace with hash 944001903, now seen corresponding path program 1 times [2024-12-02 05:50:49,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:49,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828223679] [2024-12-02 05:50:49,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:49,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:49,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:49,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:49,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828223679] [2024-12-02 05:50:49,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828223679] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:49,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:49,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:50:49,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442531695] [2024-12-02 05:50:49,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:49,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:50:49,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:49,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:50:49,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:50:49,604 INFO L87 Difference]: Start difference. First operand 36019 states and 55674 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:50,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:50,144 INFO L93 Difference]: Finished difference Result 102359 states and 158350 transitions. [2024-12-02 05:50:50,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:50:50,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-12-02 05:50:50,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:50,202 INFO L225 Difference]: With dead ends: 102359 [2024-12-02 05:50:50,202 INFO L226 Difference]: Without dead ends: 66420 [2024-12-02 05:50:50,224 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:50:50,224 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 1404 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:50,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1404 Valid, 347 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 05:50:50,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66420 states. [2024-12-02 05:50:51,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66420 to 66418. [2024-12-02 05:50:51,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66418 states, 66417 states have (on average 1.541472815694777) internal successors, (102380), 66417 states have internal predecessors, (102380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:51,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66418 states to 66418 states and 102380 transitions. [2024-12-02 05:50:51,198 INFO L78 Accepts]: Start accepts. Automaton has 66418 states and 102380 transitions. Word has length 99 [2024-12-02 05:50:51,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:51,198 INFO L471 AbstractCegarLoop]: Abstraction has 66418 states and 102380 transitions. [2024-12-02 05:50:51,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:51,199 INFO L276 IsEmpty]: Start isEmpty. Operand 66418 states and 102380 transitions. [2024-12-02 05:50:51,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 05:50:51,207 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:51,207 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:51,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 05:50:51,208 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:51,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:51,208 INFO L85 PathProgramCache]: Analyzing trace with hash -835025571, now seen corresponding path program 1 times [2024-12-02 05:50:51,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:51,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251945604] [2024-12-02 05:50:51,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:51,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:51,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:51,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:51,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251945604] [2024-12-02 05:50:51,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251945604] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:51,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:51,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:50:51,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781391139] [2024-12-02 05:50:51,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:51,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:50:51,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:51,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:50:51,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:50:51,615 INFO L87 Difference]: Start difference. First operand 66418 states and 102380 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:51,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:51,785 INFO L93 Difference]: Finished difference Result 67828 states and 104493 transitions. [2024-12-02 05:50:51,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:50:51,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-12-02 05:50:51,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:51,849 INFO L225 Difference]: With dead ends: 67828 [2024-12-02 05:50:51,849 INFO L226 Difference]: Without dead ends: 67826 [2024-12-02 05:50:51,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:50:51,863 INFO L435 NwaCegarLoop]: 341 mSDtfsCounter, 0 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:51,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1350 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:50:51,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67826 states. [2024-12-02 05:50:52,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67826 to 67826. [2024-12-02 05:50:52,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67826 states, 67825 states have (on average 1.53023221525986) internal successors, (103788), 67825 states have internal predecessors, (103788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:52,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67826 states to 67826 states and 103788 transitions. [2024-12-02 05:50:52,528 INFO L78 Accepts]: Start accepts. Automaton has 67826 states and 103788 transitions. Word has length 99 [2024-12-02 05:50:52,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:52,528 INFO L471 AbstractCegarLoop]: Abstraction has 67826 states and 103788 transitions. [2024-12-02 05:50:52,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:52,528 INFO L276 IsEmpty]: Start isEmpty. Operand 67826 states and 103788 transitions. [2024-12-02 05:50:52,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 05:50:52,533 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:52,533 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:52,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 05:50:52,534 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:52,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:52,534 INFO L85 PathProgramCache]: Analyzing trace with hash 210130591, now seen corresponding path program 1 times [2024-12-02 05:50:52,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:52,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374259262] [2024-12-02 05:50:52,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:52,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:52,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:52,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:52,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:52,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374259262] [2024-12-02 05:50:52,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374259262] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:52,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:52,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:50:52,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834975010] [2024-12-02 05:50:52,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:52,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:50:52,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:52,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:50:52,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:50:52,710 INFO L87 Difference]: Start difference. First operand 67826 states and 103788 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:53,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:53,358 INFO L93 Difference]: Finished difference Result 192566 states and 293934 transitions. [2024-12-02 05:50:53,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:50:53,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-12-02 05:50:53,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:53,505 INFO L225 Difference]: With dead ends: 192566 [2024-12-02 05:50:53,505 INFO L226 Difference]: Without dead ends: 126516 [2024-12-02 05:50:53,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:50:53,536 INFO L435 NwaCegarLoop]: 340 mSDtfsCounter, 278 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:53,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 728 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:50:53,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126516 states. [2024-12-02 05:50:54,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126516 to 126514. [2024-12-02 05:50:54,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126514 states, 126513 states have (on average 1.5184842664390221) internal successors, (192108), 126513 states have internal predecessors, (192108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:54,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126514 states to 126514 states and 192108 transitions. [2024-12-02 05:50:54,847 INFO L78 Accepts]: Start accepts. Automaton has 126514 states and 192108 transitions. Word has length 100 [2024-12-02 05:50:54,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:54,847 INFO L471 AbstractCegarLoop]: Abstraction has 126514 states and 192108 transitions. [2024-12-02 05:50:54,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:54,847 INFO L276 IsEmpty]: Start isEmpty. Operand 126514 states and 192108 transitions. [2024-12-02 05:50:54,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 05:50:54,853 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:54,854 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:54,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 05:50:54,854 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:54,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:54,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1298936868, now seen corresponding path program 1 times [2024-12-02 05:50:54,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:54,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78785935] [2024-12-02 05:50:54,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:54,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:54,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:54,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:54,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78785935] [2024-12-02 05:50:54,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78785935] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:54,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:54,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:50:54,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556802484] [2024-12-02 05:50:54,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:54,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:50:54,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:54,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:50:54,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:50:54,942 INFO L87 Difference]: Start difference. First operand 126514 states and 192108 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:55,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:55,921 INFO L93 Difference]: Finished difference Result 294992 states and 448048 transitions. [2024-12-02 05:50:55,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:50:55,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-12-02 05:50:55,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:56,421 INFO L225 Difference]: With dead ends: 294992 [2024-12-02 05:50:56,422 INFO L226 Difference]: Without dead ends: 179568 [2024-12-02 05:50:56,463 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 05:50:56,463 INFO L435 NwaCegarLoop]: 340 mSDtfsCounter, 247 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:56,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 672 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:50:56,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179568 states. [2024-12-02 05:50:58,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179568 to 125871. [2024-12-02 05:50:58,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125871 states, 125870 states have (on average 1.508365774211488) internal successors, (189858), 125870 states have internal predecessors, (189858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:58,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125871 states to 125871 states and 189858 transitions. [2024-12-02 05:50:58,454 INFO L78 Accepts]: Start accepts. Automaton has 125871 states and 189858 transitions. Word has length 101 [2024-12-02 05:50:58,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:58,454 INFO L471 AbstractCegarLoop]: Abstraction has 125871 states and 189858 transitions. [2024-12-02 05:50:58,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:58,454 INFO L276 IsEmpty]: Start isEmpty. Operand 125871 states and 189858 transitions. [2024-12-02 05:50:58,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 05:50:58,460 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:58,460 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:58,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 05:50:58,460 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:58,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:58,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1679101979, now seen corresponding path program 1 times [2024-12-02 05:50:58,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:58,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747201628] [2024-12-02 05:50:58,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:58,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:58,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:58,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:50:58,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:58,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747201628] [2024-12-02 05:50:58,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747201628] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:58,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:58,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:50:58,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549105024] [2024-12-02 05:50:58,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:58,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:50:58,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:58,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:50:58,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:50:58,542 INFO L87 Difference]: Start difference. First operand 125871 states and 189858 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:50:59,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:59,391 INFO L93 Difference]: Finished difference Result 278550 states and 419581 transitions. [2024-12-02 05:50:59,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:50:59,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-12-02 05:50:59,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:59,535 INFO L225 Difference]: With dead ends: 278550 [2024-12-02 05:50:59,535 INFO L226 Difference]: Without dead ends: 163862 [2024-12-02 05:50:59,571 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 05:50:59,572 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 239 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:59,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 657 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:50:59,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163862 states. [2024-12-02 05:51:01,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163862 to 163027. [2024-12-02 05:51:01,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163027 states, 163026 states have (on average 1.4907008697999091) internal successors, (243023), 163026 states have internal predecessors, (243023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:01,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163027 states to 163027 states and 243023 transitions. [2024-12-02 05:51:01,591 INFO L78 Accepts]: Start accepts. Automaton has 163027 states and 243023 transitions. Word has length 101 [2024-12-02 05:51:01,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:51:01,591 INFO L471 AbstractCegarLoop]: Abstraction has 163027 states and 243023 transitions. [2024-12-02 05:51:01,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:01,591 INFO L276 IsEmpty]: Start isEmpty. Operand 163027 states and 243023 transitions. [2024-12-02 05:51:01,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 05:51:01,601 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:51:01,601 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:01,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 05:51:01,601 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:51:01,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:51:01,601 INFO L85 PathProgramCache]: Analyzing trace with hash 219382229, now seen corresponding path program 1 times [2024-12-02 05:51:01,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:51:01,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215853707] [2024-12-02 05:51:01,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:01,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:51:01,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:01,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:51:01,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:51:01,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215853707] [2024-12-02 05:51:01,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215853707] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:51:01,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:51:01,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:51:01,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690682161] [2024-12-02 05:51:01,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:51:01,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:51:01,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:51:01,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:51:01,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:51:01,661 INFO L87 Difference]: Start difference. First operand 163027 states and 243023 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:02,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:51:02,279 INFO L93 Difference]: Finished difference Result 215109 states and 320207 transitions. [2024-12-02 05:51:02,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:51:02,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-12-02 05:51:02,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:51:02,443 INFO L225 Difference]: With dead ends: 215109 [2024-12-02 05:51:02,443 INFO L226 Difference]: Without dead ends: 177859 [2024-12-02 05:51:02,485 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 05:51:02,486 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 200 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:51:02,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 658 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:51:02,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177859 states. [2024-12-02 05:51:04,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177859 to 160577. [2024-12-02 05:51:04,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160577 states, 160576 states have (on average 1.4718824730968514) internal successors, (236349), 160576 states have internal predecessors, (236349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:04,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160577 states to 160577 states and 236349 transitions. [2024-12-02 05:51:04,418 INFO L78 Accepts]: Start accepts. Automaton has 160577 states and 236349 transitions. Word has length 101 [2024-12-02 05:51:04,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:51:04,419 INFO L471 AbstractCegarLoop]: Abstraction has 160577 states and 236349 transitions. [2024-12-02 05:51:04,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:04,419 INFO L276 IsEmpty]: Start isEmpty. Operand 160577 states and 236349 transitions. [2024-12-02 05:51:04,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 05:51:04,428 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:51:04,428 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:04,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 05:51:04,429 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:51:04,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:51:04,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1721063836, now seen corresponding path program 1 times [2024-12-02 05:51:04,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:51:04,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101877463] [2024-12-02 05:51:04,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:04,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:51:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:04,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:51:04,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:51:04,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101877463] [2024-12-02 05:51:04,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101877463] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:51:04,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:51:04,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:51:04,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829563523] [2024-12-02 05:51:04,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:51:04,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:51:04,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:51:04,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:51:04,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:51:04,505 INFO L87 Difference]: Start difference. First operand 160577 states and 236349 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:05,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:51:05,181 INFO L93 Difference]: Finished difference Result 250847 states and 369466 transitions. [2024-12-02 05:51:05,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:51:05,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-12-02 05:51:05,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:51:05,357 INFO L225 Difference]: With dead ends: 250847 [2024-12-02 05:51:05,357 INFO L226 Difference]: Without dead ends: 181829 [2024-12-02 05:51:05,407 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 05:51:05,407 INFO L435 NwaCegarLoop]: 337 mSDtfsCounter, 206 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:51:05,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 653 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:51:05,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181829 states. [2024-12-02 05:51:07,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181829 to 180291. [2024-12-02 05:51:07,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180291 states, 180290 states have (on average 1.4523268068112485) internal successors, (261840), 180290 states have internal predecessors, (261840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:07,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180291 states to 180291 states and 261840 transitions. [2024-12-02 05:51:07,531 INFO L78 Accepts]: Start accepts. Automaton has 180291 states and 261840 transitions. Word has length 101 [2024-12-02 05:51:07,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:51:07,531 INFO L471 AbstractCegarLoop]: Abstraction has 180291 states and 261840 transitions. [2024-12-02 05:51:07,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:07,531 INFO L276 IsEmpty]: Start isEmpty. Operand 180291 states and 261840 transitions. [2024-12-02 05:51:07,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 05:51:07,544 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:51:07,544 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:07,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 05:51:07,545 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:51:07,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:51:07,545 INFO L85 PathProgramCache]: Analyzing trace with hash -729942331, now seen corresponding path program 1 times [2024-12-02 05:51:07,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:51:07,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134019419] [2024-12-02 05:51:07,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:07,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:51:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:07,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:51:07,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:51:07,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134019419] [2024-12-02 05:51:07,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134019419] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:51:07,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:51:07,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:51:07,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384369504] [2024-12-02 05:51:07,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:51:07,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:51:07,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:51:07,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:51:07,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:51:07,617 INFO L87 Difference]: Start difference. First operand 180291 states and 261840 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:08,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:51:08,515 INFO L93 Difference]: Finished difference Result 336279 states and 488161 transitions. [2024-12-02 05:51:08,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:51:08,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-12-02 05:51:08,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:51:08,734 INFO L225 Difference]: With dead ends: 336279 [2024-12-02 05:51:08,734 INFO L226 Difference]: Without dead ends: 215549 [2024-12-02 05:51:08,802 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 05:51:08,802 INFO L435 NwaCegarLoop]: 336 mSDtfsCounter, 216 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:51:08,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 651 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:51:08,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215549 states. [2024-12-02 05:51:10,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215549 to 213867. [2024-12-02 05:51:11,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213867 states, 213866 states have (on average 1.4295540198067949) internal successors, (305733), 213866 states have internal predecessors, (305733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:11,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213867 states to 213867 states and 305733 transitions. [2024-12-02 05:51:11,645 INFO L78 Accepts]: Start accepts. Automaton has 213867 states and 305733 transitions. Word has length 101 [2024-12-02 05:51:11,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:51:11,645 INFO L471 AbstractCegarLoop]: Abstraction has 213867 states and 305733 transitions. [2024-12-02 05:51:11,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:11,645 INFO L276 IsEmpty]: Start isEmpty. Operand 213867 states and 305733 transitions. [2024-12-02 05:51:11,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 05:51:11,655 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:51:11,655 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:11,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 05:51:11,655 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:51:11,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:51:11,655 INFO L85 PathProgramCache]: Analyzing trace with hash -701746876, now seen corresponding path program 1 times [2024-12-02 05:51:11,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:51:11,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897539463] [2024-12-02 05:51:11,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:11,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:51:11,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:11,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:51:11,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:51:11,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897539463] [2024-12-02 05:51:11,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897539463] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:51:11,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:51:11,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:51:11,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442754240] [2024-12-02 05:51:11,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:51:11,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:51:11,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:51:11,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:51:11,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:51:11,841 INFO L87 Difference]: Start difference. First operand 213867 states and 305733 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:13,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:51:13,334 INFO L93 Difference]: Finished difference Result 614233 states and 883625 transitions. [2024-12-02 05:51:13,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:51:13,334 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-12-02 05:51:13,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:51:13,883 INFO L225 Difference]: With dead ends: 614233 [2024-12-02 05:51:13,884 INFO L226 Difference]: Without dead ends: 522851 [2024-12-02 05:51:13,971 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 05:51:13,971 INFO L435 NwaCegarLoop]: 528 mSDtfsCounter, 2709 mSDsluCounter, 1787 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2709 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:51:13,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2709 Valid, 2315 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:51:14,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522851 states. [2024-12-02 05:51:18,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522851 to 304637. [2024-12-02 05:51:18,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304637 states, 304636 states have (on average 1.429381294397248) internal successors, (435441), 304636 states have internal predecessors, (435441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:18,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304637 states to 304637 states and 435441 transitions. [2024-12-02 05:51:18,655 INFO L78 Accepts]: Start accepts. Automaton has 304637 states and 435441 transitions. Word has length 101 [2024-12-02 05:51:18,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:51:18,655 INFO L471 AbstractCegarLoop]: Abstraction has 304637 states and 435441 transitions. [2024-12-02 05:51:18,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:18,655 INFO L276 IsEmpty]: Start isEmpty. Operand 304637 states and 435441 transitions. [2024-12-02 05:51:18,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 05:51:18,672 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:51:18,672 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:18,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 05:51:18,673 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:51:18,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:51:18,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1783241381, now seen corresponding path program 1 times [2024-12-02 05:51:18,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:51:18,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87544171] [2024-12-02 05:51:18,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:18,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:51:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:18,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:51:18,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:51:18,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87544171] [2024-12-02 05:51:18,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87544171] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:51:18,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:51:18,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:51:18,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483136429] [2024-12-02 05:51:18,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:51:18,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:51:18,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:51:18,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:51:18,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:51:18,885 INFO L87 Difference]: Start difference. First operand 304637 states and 435441 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:20,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:51:20,643 INFO L93 Difference]: Finished difference Result 647599 states and 930933 transitions. [2024-12-02 05:51:20,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:51:20,644 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-12-02 05:51:20,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:51:21,676 INFO L225 Difference]: With dead ends: 647599 [2024-12-02 05:51:21,676 INFO L226 Difference]: Without dead ends: 584921 [2024-12-02 05:51:21,741 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 05:51:21,742 INFO L435 NwaCegarLoop]: 516 mSDtfsCounter, 3015 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3015 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:51:21,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3015 Valid, 2207 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:51:21,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584921 states. [2024-12-02 05:51:25,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584921 to 366795. [2024-12-02 05:51:25,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366795 states, 366794 states have (on average 1.4298952545570538) internal successors, (524477), 366794 states have internal predecessors, (524477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:26,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366795 states to 366795 states and 524477 transitions. [2024-12-02 05:51:26,656 INFO L78 Accepts]: Start accepts. Automaton has 366795 states and 524477 transitions. Word has length 101 [2024-12-02 05:51:26,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:51:26,656 INFO L471 AbstractCegarLoop]: Abstraction has 366795 states and 524477 transitions. [2024-12-02 05:51:26,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:26,657 INFO L276 IsEmpty]: Start isEmpty. Operand 366795 states and 524477 transitions. [2024-12-02 05:51:26,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 05:51:26,671 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:51:26,672 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:26,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 05:51:26,672 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:51:26,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:51:26,672 INFO L85 PathProgramCache]: Analyzing trace with hash -707017355, now seen corresponding path program 1 times [2024-12-02 05:51:26,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:51:26,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973740116] [2024-12-02 05:51:26,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:26,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:51:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:26,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:51:26,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:51:26,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973740116] [2024-12-02 05:51:26,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973740116] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:51:26,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:51:26,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:51:26,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919769159] [2024-12-02 05:51:26,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:51:26,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:51:26,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:51:26,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:51:26,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:51:26,851 INFO L87 Difference]: Start difference. First operand 366795 states and 524477 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:28,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:51:28,426 INFO L93 Difference]: Finished difference Result 643411 states and 924027 transitions. [2024-12-02 05:51:28,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:51:28,427 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-12-02 05:51:28,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:51:29,067 INFO L225 Difference]: With dead ends: 643411 [2024-12-02 05:51:29,067 INFO L226 Difference]: Without dead ends: 625373 [2024-12-02 05:51:29,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 05:51:29,163 INFO L435 NwaCegarLoop]: 495 mSDtfsCounter, 2825 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2825 SdHoareTripleChecker+Valid, 2412 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:51:29,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2825 Valid, 2412 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:51:29,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625373 states. [2024-12-02 05:51:33,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625373 to 384615. [2024-12-02 05:51:34,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384615 states, 384614 states have (on average 1.4300545481963736) internal successors, (550019), 384614 states have internal predecessors, (550019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:34,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384615 states to 384615 states and 550019 transitions. [2024-12-02 05:51:34,641 INFO L78 Accepts]: Start accepts. Automaton has 384615 states and 550019 transitions. Word has length 101 [2024-12-02 05:51:34,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:51:34,641 INFO L471 AbstractCegarLoop]: Abstraction has 384615 states and 550019 transitions. [2024-12-02 05:51:34,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:34,641 INFO L276 IsEmpty]: Start isEmpty. Operand 384615 states and 550019 transitions. [2024-12-02 05:51:34,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 05:51:34,659 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:51:34,659 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:34,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 05:51:34,660 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:51:34,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:51:34,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1043609124, now seen corresponding path program 1 times [2024-12-02 05:51:34,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:51:34,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519371060] [2024-12-02 05:51:34,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:34,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:51:34,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:35,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:51:35,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:51:35,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519371060] [2024-12-02 05:51:35,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519371060] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:51:35,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:51:35,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:51:35,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259067268] [2024-12-02 05:51:35,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:51:35,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:51:35,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:51:35,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:51:35,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:51:35,275 INFO L87 Difference]: Start difference. First operand 384615 states and 550019 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:36,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:51:36,963 INFO L93 Difference]: Finished difference Result 683551 states and 981801 transitions. [2024-12-02 05:51:36,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:51:36,964 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-12-02 05:51:36,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:51:37,587 INFO L225 Difference]: With dead ends: 683551 [2024-12-02 05:51:37,587 INFO L226 Difference]: Without dead ends: 642905 [2024-12-02 05:51:37,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 05:51:37,649 INFO L435 NwaCegarLoop]: 512 mSDtfsCounter, 2477 mSDsluCounter, 2228 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2477 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:51:37,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2477 Valid, 2740 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:51:37,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642905 states. [2024-12-02 05:51:42,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642905 to 410035. [2024-12-02 05:51:42,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410035 states, 410034 states have (on average 1.4309081685908973) internal successors, (586721), 410034 states have internal predecessors, (586721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:43,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410035 states to 410035 states and 586721 transitions. [2024-12-02 05:51:43,003 INFO L78 Accepts]: Start accepts. Automaton has 410035 states and 586721 transitions. Word has length 101 [2024-12-02 05:51:43,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:51:43,003 INFO L471 AbstractCegarLoop]: Abstraction has 410035 states and 586721 transitions. [2024-12-02 05:51:43,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:43,003 INFO L276 IsEmpty]: Start isEmpty. Operand 410035 states and 586721 transitions. [2024-12-02 05:51:43,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 05:51:43,017 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:51:43,017 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:43,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 05:51:43,017 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:51:43,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:51:43,018 INFO L85 PathProgramCache]: Analyzing trace with hash 562041861, now seen corresponding path program 1 times [2024-12-02 05:51:43,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:51:43,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503878795] [2024-12-02 05:51:43,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:43,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:51:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:43,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:51:43,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:51:43,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503878795] [2024-12-02 05:51:43,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503878795] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:51:43,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:51:43,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:51:43,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559080620] [2024-12-02 05:51:43,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:51:43,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:51:43,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:51:43,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:51:43,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:51:43,178 INFO L87 Difference]: Start difference. First operand 410035 states and 586721 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:45,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:51:45,689 INFO L93 Difference]: Finished difference Result 829605 states and 1191835 transitions. [2024-12-02 05:51:45,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:51:45,690 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-12-02 05:51:45,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:51:46,503 INFO L225 Difference]: With dead ends: 829605 [2024-12-02 05:51:46,503 INFO L226 Difference]: Without dead ends: 733359 [2024-12-02 05:51:46,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 05:51:46,575 INFO L435 NwaCegarLoop]: 546 mSDtfsCounter, 2519 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2519 SdHoareTripleChecker+Valid, 3207 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:51:46,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2519 Valid, 3207 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:51:46,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733359 states. [2024-12-02 05:51:51,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733359 to 473702. [2024-12-02 05:51:51,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473702 states, 473701 states have (on average 1.4312826023166512) internal successors, (678000), 473701 states have internal predecessors, (678000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:53,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473702 states to 473702 states and 678000 transitions. [2024-12-02 05:51:53,056 INFO L78 Accepts]: Start accepts. Automaton has 473702 states and 678000 transitions. Word has length 101 [2024-12-02 05:51:53,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:51:53,056 INFO L471 AbstractCegarLoop]: Abstraction has 473702 states and 678000 transitions. [2024-12-02 05:51:53,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:53,056 INFO L276 IsEmpty]: Start isEmpty. Operand 473702 states and 678000 transitions. [2024-12-02 05:51:53,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 05:51:53,070 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:51:53,071 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:53,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 05:51:53,071 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:51:53,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:51:53,071 INFO L85 PathProgramCache]: Analyzing trace with hash -107341610, now seen corresponding path program 1 times [2024-12-02 05:51:53,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:51:53,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467765538] [2024-12-02 05:51:53,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:53,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:51:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:53,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:51:53,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:51:53,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467765538] [2024-12-02 05:51:53,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467765538] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:51:53,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:51:53,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:51:53,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117220251] [2024-12-02 05:51:53,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:51:53,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:51:53,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:51:53,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:51:53,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:51:53,240 INFO L87 Difference]: Start difference. First operand 473702 states and 678000 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:51:56,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:51:56,075 INFO L93 Difference]: Finished difference Result 934181 states and 1341132 transitions. [2024-12-02 05:51:56,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:51:56,076 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2024-12-02 05:51:56,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:51:57,062 INFO L225 Difference]: With dead ends: 934181 [2024-12-02 05:51:57,062 INFO L226 Difference]: Without dead ends: 828879 [2024-12-02 05:51:57,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 05:51:57,186 INFO L435 NwaCegarLoop]: 552 mSDtfsCounter, 2527 mSDsluCounter, 2237 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2527 SdHoareTripleChecker+Valid, 2789 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:51:57,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2527 Valid, 2789 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:51:57,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828879 states.