./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd --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 4ae09636d6d49c5a158b8afd2276e8412a0fd924126d4adf85602ed9f0284ed9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:42:09,051 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:42:09,135 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:42:09,140 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:42:09,140 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:42:09,163 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:42:09,164 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:42:09,164 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:42:09,165 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:42:09,165 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:42:09,165 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:42:09,165 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:42:09,166 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:42:09,166 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:42:09,166 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:42:09,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:42:09,166 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:42:09,166 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:42:09,167 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:42:09,167 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:42:09,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:42:09,167 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:42:09,167 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:42:09,167 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:42:09,167 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:42:09,168 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:42:09,168 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:42:09,168 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:42:09,168 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:42:09,168 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:42:09,168 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:42:09,169 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:42:09,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:42:09,169 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:42:09,169 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:42:09,169 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:42:09,169 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:42:09,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:42:09,170 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:42:09,170 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:42:09,170 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:42:09,170 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:42:09,170 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_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd 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 -> 4ae09636d6d49c5a158b8afd2276e8412a0fd924126d4adf85602ed9f0284ed9 [2024-11-13 13:42:09,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:42:09,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:42:09,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:42:09,502 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:42:09,502 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:42:09,504 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label04.c Unable to find full path for "g++" [2024-11-13 13:42:11,441 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:42:12,174 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:42:12,175 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label04.c [2024-11-13 13:42:12,228 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/data/ee8592a1f/3ccdd3bef774475a8c9943e3cbee290b/FLAG850e26497 [2024-11-13 13:42:12,533 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/data/ee8592a1f/3ccdd3bef774475a8c9943e3cbee290b [2024-11-13 13:42:12,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:42:12,537 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:42:12,538 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:42:12,538 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:42:12,542 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:42:12,543 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:12" (1/1) ... [2024-11-13 13:42:12,544 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68bef5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:12, skipping insertion in model container [2024-11-13 13:42:12,544 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:12" (1/1) ... [2024-11-13 13:42:12,669 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:42:13,026 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_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label04.c[15519,15532] [2024-11-13 13:42:13,089 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_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label04.c[22580,22593] [2024-11-13 13:42:13,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:42:13,945 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:42:14,005 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_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label04.c[15519,15532] [2024-11-13 13:42:14,025 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_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label04.c[22580,22593] [2024-11-13 13:42:14,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:42:14,530 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:42:14,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:14 WrapperNode [2024-11-13 13:42:14,533 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:42:14,534 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:42:14,534 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:42:14,535 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:42:14,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:14" (1/1) ... [2024-11-13 13:42:14,608 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:14" (1/1) ... [2024-11-13 13:42:15,037 INFO L138 Inliner]: procedures = 37, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5158 [2024-11-13 13:42:15,038 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:42:15,043 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:42:15,043 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:42:15,043 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:42:15,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:14" (1/1) ... [2024-11-13 13:42:15,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:14" (1/1) ... [2024-11-13 13:42:15,130 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:14" (1/1) ... [2024-11-13 13:42:15,402 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]. [2024-11-13 13:42:15,402 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:14" (1/1) ... [2024-11-13 13:42:15,402 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:14" (1/1) ... [2024-11-13 13:42:15,601 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:14" (1/1) ... [2024-11-13 13:42:15,650 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:14" (1/1) ... [2024-11-13 13:42:15,679 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:14" (1/1) ... [2024-11-13 13:42:15,716 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:14" (1/1) ... [2024-11-13 13:42:15,798 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:42:15,799 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:42:15,799 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:42:15,799 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:42:15,800 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:14" (1/1) ... [2024-11-13 13:42:15,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:42:15,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:42:15,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:42:15,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:42:15,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:42:15,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:42:15,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:42:15,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:42:16,072 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:42:16,075 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:42:22,171 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-11-13 13:42:22,171 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:42:22,204 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:42:22,204 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 13:42:22,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:42:22 BoogieIcfgContainer [2024-11-13 13:42:22,205 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:42:22,207 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:42:22,208 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:42:22,212 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:42:22,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:42:12" (1/3) ... [2024-11-13 13:42:22,213 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4801ed1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:42:22, skipping insertion in model container [2024-11-13 13:42:22,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:14" (2/3) ... [2024-11-13 13:42:22,213 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4801ed1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:42:22, skipping insertion in model container [2024-11-13 13:42:22,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:42:22" (3/3) ... [2024-11-13 13:42:22,214 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label04.c [2024-11-13 13:42:22,230 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:42:22,233 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label04.c that has 1 procedures, 914 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-13 13:42:22,318 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:42:22,330 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;@49320342, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:42:22,330 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 13:42:22,337 INFO L276 IsEmpty]: Start isEmpty. Operand has 914 states, 911 states have (on average 1.9045005488474205) internal successors, (1735), 913 states have internal predecessors, (1735), 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) [2024-11-13 13:42:22,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-13 13:42:22,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:22,346 INFO L215 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] [2024-11-13 13:42:22,346 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:22,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:22,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1052269854, now seen corresponding path program 1 times [2024-11-13 13:42:22,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:22,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416380710] [2024-11-13 13:42:22,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:22,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:22,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:42:22,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:22,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416380710] [2024-11-13 13:42:22,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416380710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:22,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:22,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:42:22,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048859571] [2024-11-13 13:42:22,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:22,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 13:42:22,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:22,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 13:42:22,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:42:22,746 INFO L87 Difference]: Start difference. First operand has 914 states, 911 states have (on average 1.9045005488474205) internal successors, (1735), 913 states have internal predecessors, (1735), 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 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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) [2024-11-13 13:42:22,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:22,903 INFO L93 Difference]: Finished difference Result 1782 states and 3382 transitions. [2024-11-13 13:42:22,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 13:42:22,907 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 26 [2024-11-13 13:42:22,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:22,945 INFO L225 Difference]: With dead ends: 1782 [2024-11-13 13:42:22,949 INFO L226 Difference]: Without dead ends: 848 [2024-11-13 13:42:22,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:42:22,961 INFO L432 NwaCegarLoop]: 1669 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:22,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1669 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:42:22,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-11-13 13:42:23,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 848. [2024-11-13 13:42:23,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 846 states have (on average 1.8936170212765957) internal successors, (1602), 847 states have internal predecessors, (1602), 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) [2024-11-13 13:42:23,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1602 transitions. [2024-11-13 13:42:23,104 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1602 transitions. Word has length 26 [2024-11-13 13:42:23,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:23,104 INFO L471 AbstractCegarLoop]: Abstraction has 848 states and 1602 transitions. [2024-11-13 13:42:23,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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) [2024-11-13 13:42:23,105 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1602 transitions. [2024-11-13 13:42:23,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-13 13:42:23,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:23,110 INFO L215 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] [2024-11-13 13:42:23,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:42:23,111 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:23,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:23,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1869918304, now seen corresponding path program 1 times [2024-11-13 13:42:23,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:23,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990211103] [2024-11-13 13:42:23,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:23,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:23,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:42:23,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:23,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990211103] [2024-11-13 13:42:23,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990211103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:23,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:23,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:42:23,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372496224] [2024-11-13 13:42:23,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:23,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:42:23,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:23,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:42:23,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:42:23,521 INFO L87 Difference]: Start difference. First operand 848 states and 1602 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2024-11-13 13:42:23,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:23,697 INFO L93 Difference]: Finished difference Result 900 states and 1683 transitions. [2024-11-13 13:42:23,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:42:23,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 26 [2024-11-13 13:42:23,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:23,702 INFO L225 Difference]: With dead ends: 900 [2024-11-13 13:42:23,702 INFO L226 Difference]: Without dead ends: 848 [2024-11-13 13:42:23,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:42:23,703 INFO L432 NwaCegarLoop]: 1600 mSDtfsCounter, 0 mSDsluCounter, 4755 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6355 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:23,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6355 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:42:23,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-11-13 13:42:23,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 848. [2024-11-13 13:42:23,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 846 states have (on average 1.846335697399527) internal successors, (1562), 847 states have internal predecessors, (1562), 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) [2024-11-13 13:42:23,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1562 transitions. [2024-11-13 13:42:23,747 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1562 transitions. Word has length 26 [2024-11-13 13:42:23,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:23,748 INFO L471 AbstractCegarLoop]: Abstraction has 848 states and 1562 transitions. [2024-11-13 13:42:23,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2024-11-13 13:42:23,748 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1562 transitions. [2024-11-13 13:42:23,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-13 13:42:23,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:23,752 INFO L215 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] [2024-11-13 13:42:23,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:42:23,752 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:23,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:23,756 INFO L85 PathProgramCache]: Analyzing trace with hash -84554639, now seen corresponding path program 1 times [2024-11-13 13:42:23,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:23,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215804625] [2024-11-13 13:42:23,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:23,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:23,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:42:23,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:23,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215804625] [2024-11-13 13:42:23,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215804625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:23,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:23,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:42:23,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150204975] [2024-11-13 13:42:23,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:23,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:42:23,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:23,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:42:23,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:42:23,935 INFO L87 Difference]: Start difference. First operand 848 states and 1562 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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) [2024-11-13 13:42:28,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:28,748 INFO L93 Difference]: Finished difference Result 2352 states and 4435 transitions. [2024-11-13 13:42:28,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:42:28,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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 61 [2024-11-13 13:42:28,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:28,757 INFO L225 Difference]: With dead ends: 2352 [2024-11-13 13:42:28,758 INFO L226 Difference]: Without dead ends: 1599 [2024-11-13 13:42:28,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:42:28,763 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 877 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 998 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 3275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 998 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:28,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 200 Invalid, 3275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [998 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-13 13:42:28,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1599 states. [2024-11-13 13:42:28,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1599 to 1599. [2024-11-13 13:42:28,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1599 states, 1597 states have (on average 1.839073262366938) internal successors, (2937), 1598 states have internal predecessors, (2937), 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) [2024-11-13 13:42:28,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1599 states to 1599 states and 2937 transitions. [2024-11-13 13:42:28,835 INFO L78 Accepts]: Start accepts. Automaton has 1599 states and 2937 transitions. Word has length 61 [2024-11-13 13:42:28,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:28,836 INFO L471 AbstractCegarLoop]: Abstraction has 1599 states and 2937 transitions. [2024-11-13 13:42:28,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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) [2024-11-13 13:42:28,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1599 states and 2937 transitions. [2024-11-13 13:42:28,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 13:42:28,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:28,838 INFO L215 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] [2024-11-13 13:42:28,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:42:28,838 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:28,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:28,839 INFO L85 PathProgramCache]: Analyzing trace with hash 681268460, now seen corresponding path program 1 times [2024-11-13 13:42:28,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:28,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465063843] [2024-11-13 13:42:28,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:28,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:29,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:42:29,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:29,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465063843] [2024-11-13 13:42:29,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465063843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:29,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:29,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:42:29,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775059592] [2024-11-13 13:42:29,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:29,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:42:29,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:29,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:42:29,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:42:29,283 INFO L87 Difference]: Start difference. First operand 1599 states and 2937 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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) [2024-11-13 13:42:29,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:29,733 INFO L93 Difference]: Finished difference Result 2175 states and 3861 transitions. [2024-11-13 13:42:29,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 13:42:29,734 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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 65 [2024-11-13 13:42:29,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:29,746 INFO L225 Difference]: With dead ends: 2175 [2024-11-13 13:42:29,746 INFO L226 Difference]: Without dead ends: 2127 [2024-11-13 13:42:29,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-13 13:42:29,750 INFO L432 NwaCegarLoop]: 1558 mSDtfsCounter, 9699 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9699 SdHoareTripleChecker+Valid, 3692 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:29,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9699 Valid, 3692 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:42:29,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2127 states. [2024-11-13 13:42:29,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2127 to 1645. [2024-11-13 13:42:29,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1645 states, 1643 states have (on average 1.8326232501521607) internal successors, (3011), 1644 states have internal predecessors, (3011), 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) [2024-11-13 13:42:29,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 3011 transitions. [2024-11-13 13:42:29,818 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 3011 transitions. Word has length 65 [2024-11-13 13:42:29,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:29,820 INFO L471 AbstractCegarLoop]: Abstraction has 1645 states and 3011 transitions. [2024-11-13 13:42:29,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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) [2024-11-13 13:42:29,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 3011 transitions. [2024-11-13 13:42:29,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 13:42:29,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:29,825 INFO L215 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] [2024-11-13 13:42:29,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:42:29,826 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:29,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:29,826 INFO L85 PathProgramCache]: Analyzing trace with hash 448266812, now seen corresponding path program 1 times [2024-11-13 13:42:29,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:29,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571396043] [2024-11-13 13:42:29,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:29,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:30,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:42:30,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:30,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571396043] [2024-11-13 13:42:30,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571396043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:30,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:30,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:42:30,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804688335] [2024-11-13 13:42:30,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:30,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:42:30,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:30,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:42:30,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:42:30,025 INFO L87 Difference]: Start difference. First operand 1645 states and 3011 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-13 13:42:30,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:30,069 INFO L93 Difference]: Finished difference Result 1822 states and 3294 transitions. [2024-11-13 13:42:30,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:42:30,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 67 [2024-11-13 13:42:30,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:30,078 INFO L225 Difference]: With dead ends: 1822 [2024-11-13 13:42:30,078 INFO L226 Difference]: Without dead ends: 1728 [2024-11-13 13:42:30,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:42:30,080 INFO L432 NwaCegarLoop]: 1560 mSDtfsCounter, 1490 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:30,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1632 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:42:30,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2024-11-13 13:42:30,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1726. [2024-11-13 13:42:30,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1724 states have (on average 1.8207656612529002) internal successors, (3139), 1725 states have internal predecessors, (3139), 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) [2024-11-13 13:42:30,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 3139 transitions. [2024-11-13 13:42:30,140 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 3139 transitions. Word has length 67 [2024-11-13 13:42:30,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:30,141 INFO L471 AbstractCegarLoop]: Abstraction has 1726 states and 3139 transitions. [2024-11-13 13:42:30,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-13 13:42:30,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 3139 transitions. [2024-11-13 13:42:30,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 13:42:30,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:30,144 INFO L215 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] [2024-11-13 13:42:30,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:42:30,144 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:30,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:30,144 INFO L85 PathProgramCache]: Analyzing trace with hash 514760324, now seen corresponding path program 1 times [2024-11-13 13:42:30,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:30,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509384959] [2024-11-13 13:42:30,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:30,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:30,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:42:30,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:30,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509384959] [2024-11-13 13:42:30,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509384959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:30,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:30,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:42:30,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173578938] [2024-11-13 13:42:30,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:30,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:42:30,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:30,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:42:30,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:42:30,704 INFO L87 Difference]: Start difference. First operand 1726 states and 3139 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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) [2024-11-13 13:42:31,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:31,325 INFO L93 Difference]: Finished difference Result 1903 states and 3419 transitions. [2024-11-13 13:42:31,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:42:31,326 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 67 [2024-11-13 13:42:31,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:31,334 INFO L225 Difference]: With dead ends: 1903 [2024-11-13 13:42:31,334 INFO L226 Difference]: Without dead ends: 1728 [2024-11-13 13:42:31,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:42:31,336 INFO L432 NwaCegarLoop]: 1554 mSDtfsCounter, 4516 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4516 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:31,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4516 Valid, 1928 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:42:31,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2024-11-13 13:42:31,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1726. [2024-11-13 13:42:31,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1724 states have (on average 1.8196055684454757) internal successors, (3137), 1725 states have internal predecessors, (3137), 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) [2024-11-13 13:42:31,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 3137 transitions. [2024-11-13 13:42:31,386 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 3137 transitions. Word has length 67 [2024-11-13 13:42:31,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:31,386 INFO L471 AbstractCegarLoop]: Abstraction has 1726 states and 3137 transitions. [2024-11-13 13:42:31,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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) [2024-11-13 13:42:31,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 3137 transitions. [2024-11-13 13:42:31,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 13:42:31,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:31,388 INFO L215 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] [2024-11-13 13:42:31,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:42:31,388 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:31,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:31,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1637022140, now seen corresponding path program 1 times [2024-11-13 13:42:31,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:31,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842482810] [2024-11-13 13:42:31,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:31,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:31,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:31,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:42:31,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:31,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842482810] [2024-11-13 13:42:31,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842482810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:31,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:31,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:42:31,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718535105] [2024-11-13 13:42:31,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:31,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:42:31,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:31,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:42:31,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:42:31,741 INFO L87 Difference]: Start difference. First operand 1726 states and 3137 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-13 13:42:31,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:31,796 INFO L93 Difference]: Finished difference Result 1734 states and 3146 transitions. [2024-11-13 13:42:31,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:42:31,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 68 [2024-11-13 13:42:31,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:31,804 INFO L225 Difference]: With dead ends: 1734 [2024-11-13 13:42:31,805 INFO L226 Difference]: Without dead ends: 1732 [2024-11-13 13:42:31,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:42:31,807 INFO L432 NwaCegarLoop]: 1559 mSDtfsCounter, 0 mSDsluCounter, 4668 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6227 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:31,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6227 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:42:31,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2024-11-13 13:42:31,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1732. [2024-11-13 13:42:31,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1730 states have (on average 1.8161849710982658) internal successors, (3142), 1731 states have internal predecessors, (3142), 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) [2024-11-13 13:42:31,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 3142 transitions. [2024-11-13 13:42:31,858 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 3142 transitions. Word has length 68 [2024-11-13 13:42:31,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:31,858 INFO L471 AbstractCegarLoop]: Abstraction has 1732 states and 3142 transitions. [2024-11-13 13:42:31,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-13 13:42:31,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 3142 transitions. [2024-11-13 13:42:31,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 13:42:31,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:31,859 INFO L215 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] [2024-11-13 13:42:31,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 13:42:31,860 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:31,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:31,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1002453348, now seen corresponding path program 1 times [2024-11-13 13:42:31,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:31,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456215042] [2024-11-13 13:42:31,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:31,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:31,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:42:31,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:31,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456215042] [2024-11-13 13:42:31,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456215042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:31,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:31,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:42:31,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73744712] [2024-11-13 13:42:31,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:31,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:42:31,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:31,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:42:31,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:42:31,989 INFO L87 Difference]: Start difference. First operand 1732 states and 3142 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-13 13:42:32,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:32,036 INFO L93 Difference]: Finished difference Result 1926 states and 3443 transitions. [2024-11-13 13:42:32,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:42:32,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 69 [2024-11-13 13:42:32,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:32,046 INFO L225 Difference]: With dead ends: 1926 [2024-11-13 13:42:32,047 INFO L226 Difference]: Without dead ends: 1826 [2024-11-13 13:42:32,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:42:32,048 INFO L432 NwaCegarLoop]: 1624 mSDtfsCounter, 1506 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:32,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1702 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:42:32,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2024-11-13 13:42:32,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1824. [2024-11-13 13:42:32,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1822 states have (on average 1.8018660812294183) internal successors, (3283), 1823 states have internal predecessors, (3283), 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) [2024-11-13 13:42:32,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 3283 transitions. [2024-11-13 13:42:32,105 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 3283 transitions. Word has length 69 [2024-11-13 13:42:32,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:32,106 INFO L471 AbstractCegarLoop]: Abstraction has 1824 states and 3283 transitions. [2024-11-13 13:42:32,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-13 13:42:32,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 3283 transitions. [2024-11-13 13:42:32,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 13:42:32,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:32,108 INFO L215 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] [2024-11-13 13:42:32,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:42:32,109 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:32,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:32,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1165367908, now seen corresponding path program 1 times [2024-11-13 13:42:32,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:32,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109477048] [2024-11-13 13:42:32,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:32,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:32,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:42:32,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:32,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109477048] [2024-11-13 13:42:32,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109477048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:32,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:32,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:42:32,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601902885] [2024-11-13 13:42:32,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:32,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:42:32,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:32,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:42:32,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:42:32,271 INFO L87 Difference]: Start difference. First operand 1824 states and 3283 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-13 13:42:32,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:32,314 INFO L93 Difference]: Finished difference Result 2342 states and 4083 transitions. [2024-11-13 13:42:32,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:42:32,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 69 [2024-11-13 13:42:32,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:32,323 INFO L225 Difference]: With dead ends: 2342 [2024-11-13 13:42:32,324 INFO L226 Difference]: Without dead ends: 2071 [2024-11-13 13:42:32,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:42:32,327 INFO L432 NwaCegarLoop]: 1626 mSDtfsCounter, 1504 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:32,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1708 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:42:32,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2071 states. [2024-11-13 13:42:32,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2071 to 2069. [2024-11-13 13:42:32,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 2067 states have (on average 1.768263183357523) internal successors, (3655), 2068 states have internal predecessors, (3655), 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) [2024-11-13 13:42:32,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 3655 transitions. [2024-11-13 13:42:32,385 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 3655 transitions. Word has length 69 [2024-11-13 13:42:32,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:32,385 INFO L471 AbstractCegarLoop]: Abstraction has 2069 states and 3655 transitions. [2024-11-13 13:42:32,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-13 13:42:32,385 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 3655 transitions. [2024-11-13 13:42:32,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 13:42:32,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:32,388 INFO L215 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] [2024-11-13 13:42:32,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 13:42:32,388 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:32,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:32,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1627480988, now seen corresponding path program 1 times [2024-11-13 13:42:32,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:32,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607820298] [2024-11-13 13:42:32,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:32,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:32,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:42:32,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:32,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607820298] [2024-11-13 13:42:32,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607820298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:32,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:32,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:42:32,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436069721] [2024-11-13 13:42:32,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:32,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:42:32,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:32,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:42:32,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:42:32,480 INFO L87 Difference]: Start difference. First operand 2069 states and 3655 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-13 13:42:32,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:32,524 INFO L93 Difference]: Finished difference Result 3053 states and 5157 transitions. [2024-11-13 13:42:32,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:42:32,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 69 [2024-11-13 13:42:32,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:32,534 INFO L225 Difference]: With dead ends: 3053 [2024-11-13 13:42:32,535 INFO L226 Difference]: Without dead ends: 2537 [2024-11-13 13:42:32,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:42:32,537 INFO L432 NwaCegarLoop]: 1614 mSDtfsCounter, 1500 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1704 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:32,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1704 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:42:32,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2537 states. [2024-11-13 13:42:32,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2537 to 2535. [2024-11-13 13:42:32,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2535 states, 2533 states have (on average 1.717726016581129) internal successors, (4351), 2534 states have internal predecessors, (4351), 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) [2024-11-13 13:42:32,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2535 states to 2535 states and 4351 transitions. [2024-11-13 13:42:32,615 INFO L78 Accepts]: Start accepts. Automaton has 2535 states and 4351 transitions. Word has length 69 [2024-11-13 13:42:32,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:32,616 INFO L471 AbstractCegarLoop]: Abstraction has 2535 states and 4351 transitions. [2024-11-13 13:42:32,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-13 13:42:32,616 INFO L276 IsEmpty]: Start isEmpty. Operand 2535 states and 4351 transitions. [2024-11-13 13:42:32,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 13:42:32,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:32,617 INFO L215 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] [2024-11-13 13:42:32,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 13:42:32,617 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:32,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:32,618 INFO L85 PathProgramCache]: Analyzing trace with hash 452017508, now seen corresponding path program 1 times [2024-11-13 13:42:32,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:32,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429247006] [2024-11-13 13:42:32,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:32,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:32,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:32,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:42:32,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:32,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429247006] [2024-11-13 13:42:32,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429247006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:32,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:32,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:42:32,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964729524] [2024-11-13 13:42:32,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:32,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:42:32,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:32,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:42:32,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:42:32,699 INFO L87 Difference]: Start difference. First operand 2535 states and 4351 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-13 13:42:32,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:32,756 INFO L93 Difference]: Finished difference Result 4403 states and 7161 transitions. [2024-11-13 13:42:32,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:42:32,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 69 [2024-11-13 13:42:32,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:32,770 INFO L225 Difference]: With dead ends: 4403 [2024-11-13 13:42:32,770 INFO L226 Difference]: Without dead ends: 3421 [2024-11-13 13:42:32,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:42:32,772 INFO L432 NwaCegarLoop]: 1612 mSDtfsCounter, 1498 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1706 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:32,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1706 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:42:32,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3421 states. [2024-11-13 13:42:32,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3421 to 3419. [2024-11-13 13:42:32,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3419 states, 3417 states have (on average 1.652619256657887) internal successors, (5647), 3418 states have internal predecessors, (5647), 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) [2024-11-13 13:42:32,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3419 states to 3419 states and 5647 transitions. [2024-11-13 13:42:32,879 INFO L78 Accepts]: Start accepts. Automaton has 3419 states and 5647 transitions. Word has length 69 [2024-11-13 13:42:32,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:32,879 INFO L471 AbstractCegarLoop]: Abstraction has 3419 states and 5647 transitions. [2024-11-13 13:42:32,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-13 13:42:32,879 INFO L276 IsEmpty]: Start isEmpty. Operand 3419 states and 5647 transitions. [2024-11-13 13:42:32,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 13:42:32,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:32,880 INFO L215 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] [2024-11-13 13:42:32,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 13:42:32,881 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:32,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:32,881 INFO L85 PathProgramCache]: Analyzing trace with hash -2062016924, now seen corresponding path program 1 times [2024-11-13 13:42:32,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:32,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322824747] [2024-11-13 13:42:32,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:32,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:32,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:42:32,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:32,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322824747] [2024-11-13 13:42:32,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322824747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:32,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:32,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:42:32,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785485705] [2024-11-13 13:42:32,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:32,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:42:32,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:32,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:42:32,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:42:32,966 INFO L87 Difference]: Start difference. First operand 3419 states and 5647 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-13 13:42:33,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:33,108 INFO L93 Difference]: Finished difference Result 6959 states and 10881 transitions. [2024-11-13 13:42:33,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:42:33,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 69 [2024-11-13 13:42:33,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:33,130 INFO L225 Difference]: With dead ends: 6959 [2024-11-13 13:42:33,130 INFO L226 Difference]: Without dead ends: 5093 [2024-11-13 13:42:33,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:42:33,133 INFO L432 NwaCegarLoop]: 1610 mSDtfsCounter, 1496 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:33,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1708 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:42:33,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5093 states. [2024-11-13 13:42:33,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5093 to 5091. [2024-11-13 13:42:33,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5091 states, 5089 states have (on average 1.5812536844173708) internal successors, (8047), 5090 states have internal predecessors, (8047), 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) [2024-11-13 13:42:33,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5091 states to 5091 states and 8047 transitions. [2024-11-13 13:42:33,344 INFO L78 Accepts]: Start accepts. Automaton has 5091 states and 8047 transitions. Word has length 69 [2024-11-13 13:42:33,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:33,344 INFO L471 AbstractCegarLoop]: Abstraction has 5091 states and 8047 transitions. [2024-11-13 13:42:33,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-13 13:42:33,344 INFO L276 IsEmpty]: Start isEmpty. Operand 5091 states and 8047 transitions. [2024-11-13 13:42:33,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 13:42:33,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:33,346 INFO L215 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] [2024-11-13 13:42:33,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 13:42:33,346 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:33,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:33,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1429224292, now seen corresponding path program 1 times [2024-11-13 13:42:33,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:33,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115861071] [2024-11-13 13:42:33,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:33,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:33,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:42:33,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:33,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115861071] [2024-11-13 13:42:33,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115861071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:33,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:33,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:42:33,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214082471] [2024-11-13 13:42:33,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:33,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:42:33,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:33,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:42:33,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:42:33,449 INFO L87 Difference]: Start difference. First operand 5091 states and 8047 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-13 13:42:33,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:33,666 INFO L93 Difference]: Finished difference Result 11783 states and 17745 transitions. [2024-11-13 13:42:33,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:42:33,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 69 [2024-11-13 13:42:33,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:33,691 INFO L225 Difference]: With dead ends: 11783 [2024-11-13 13:42:33,691 INFO L226 Difference]: Without dead ends: 8245 [2024-11-13 13:42:33,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:42:33,699 INFO L432 NwaCegarLoop]: 1624 mSDtfsCounter, 1502 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:33,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1710 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:42:33,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8245 states. [2024-11-13 13:42:33,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8245 to 8243. [2024-11-13 13:42:33,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8243 states, 8241 states have (on average 1.5123164664482465) internal successors, (12463), 8242 states have internal predecessors, (12463), 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) [2024-11-13 13:42:33,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8243 states to 8243 states and 12463 transitions. [2024-11-13 13:42:33,996 INFO L78 Accepts]: Start accepts. Automaton has 8243 states and 12463 transitions. Word has length 69 [2024-11-13 13:42:33,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:33,996 INFO L471 AbstractCegarLoop]: Abstraction has 8243 states and 12463 transitions. [2024-11-13 13:42:33,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-13 13:42:33,997 INFO L276 IsEmpty]: Start isEmpty. Operand 8243 states and 12463 transitions. [2024-11-13 13:42:34,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-13 13:42:34,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:34,002 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:42:34,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 13:42:34,003 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:34,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:34,003 INFO L85 PathProgramCache]: Analyzing trace with hash -167199482, now seen corresponding path program 1 times [2024-11-13 13:42:34,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:34,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143680060] [2024-11-13 13:42:34,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:34,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:34,343 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 13:42:34,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:34,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143680060] [2024-11-13 13:42:34,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143680060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:34,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:34,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:42:34,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877293286] [2024-11-13 13:42:34,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:34,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:42:34,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:34,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:42:34,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:42:34,344 INFO L87 Difference]: Start difference. First operand 8243 states and 12463 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 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) [2024-11-13 13:42:35,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:35,339 INFO L93 Difference]: Finished difference Result 47841 states and 69238 transitions. [2024-11-13 13:42:35,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:42:35,339 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 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 90 [2024-11-13 13:42:35,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:35,446 INFO L225 Difference]: With dead ends: 47841 [2024-11-13 13:42:35,446 INFO L226 Difference]: Without dead ends: 43103 [2024-11-13 13:42:35,459 INFO L431 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 [2024-11-13 13:42:35,460 INFO L432 NwaCegarLoop]: 1636 mSDtfsCounter, 8080 mSDsluCounter, 2365 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8080 SdHoareTripleChecker+Valid, 4001 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:35,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8080 Valid, 4001 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:42:35,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43103 states. [2024-11-13 13:42:36,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43103 to 13971. [2024-11-13 13:42:36,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13971 states, 13969 states have (on average 1.4740496814374686) internal successors, (20591), 13970 states have internal predecessors, (20591), 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) [2024-11-13 13:42:36,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13971 states to 13971 states and 20591 transitions. [2024-11-13 13:42:36,369 INFO L78 Accepts]: Start accepts. Automaton has 13971 states and 20591 transitions. Word has length 90 [2024-11-13 13:42:36,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:36,369 INFO L471 AbstractCegarLoop]: Abstraction has 13971 states and 20591 transitions. [2024-11-13 13:42:36,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 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) [2024-11-13 13:42:36,370 INFO L276 IsEmpty]: Start isEmpty. Operand 13971 states and 20591 transitions. [2024-11-13 13:42:36,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-13 13:42:36,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:36,382 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:42:36,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 13:42:36,382 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:36,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:36,389 INFO L85 PathProgramCache]: Analyzing trace with hash -4284922, now seen corresponding path program 1 times [2024-11-13 13:42:36,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:36,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671790288] [2024-11-13 13:42:36,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:36,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:36,889 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 13:42:36,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:36,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671790288] [2024-11-13 13:42:36,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671790288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:36,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:36,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:42:36,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89004797] [2024-11-13 13:42:36,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:36,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:42:36,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:36,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:42:36,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:42:36,893 INFO L87 Difference]: Start difference. First operand 13971 states and 20591 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2024-11-13 13:42:38,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:38,473 INFO L93 Difference]: Finished difference Result 54529 states and 78774 transitions. [2024-11-13 13:42:38,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:42:38,473 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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 90 [2024-11-13 13:42:38,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:38,631 INFO L225 Difference]: With dead ends: 54529 [2024-11-13 13:42:38,632 INFO L226 Difference]: Without dead ends: 47839 [2024-11-13 13:42:38,654 INFO L431 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 [2024-11-13 13:42:38,655 INFO L432 NwaCegarLoop]: 1635 mSDtfsCounter, 8082 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8082 SdHoareTripleChecker+Valid, 3964 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:38,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8082 Valid, 3964 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:42:38,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47839 states. [2024-11-13 13:42:39,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47839 to 23027. [2024-11-13 13:42:39,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23027 states, 23025 states have (on average 1.4515960912052117) internal successors, (33423), 23026 states have internal predecessors, (33423), 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) [2024-11-13 13:42:39,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23027 states to 23027 states and 33423 transitions. [2024-11-13 13:42:39,911 INFO L78 Accepts]: Start accepts. Automaton has 23027 states and 33423 transitions. Word has length 90 [2024-11-13 13:42:39,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:39,911 INFO L471 AbstractCegarLoop]: Abstraction has 23027 states and 33423 transitions. [2024-11-13 13:42:39,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2024-11-13 13:42:39,912 INFO L276 IsEmpty]: Start isEmpty. Operand 23027 states and 33423 transitions. [2024-11-13 13:42:39,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-13 13:42:39,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:39,918 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:42:39,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 13:42:39,918 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:39,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:39,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1497833478, now seen corresponding path program 1 times [2024-11-13 13:42:39,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:39,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984229258] [2024-11-13 13:42:39,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:39,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:40,247 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 13:42:40,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:40,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984229258] [2024-11-13 13:42:40,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984229258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:40,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:40,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:42:40,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874477587] [2024-11-13 13:42:40,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:40,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:42:40,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:40,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:42:40,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:42:40,248 INFO L87 Difference]: Start difference. First operand 23027 states and 33423 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 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) [2024-11-13 13:42:41,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:41,385 INFO L93 Difference]: Finished difference Result 61217 states and 88278 transitions. [2024-11-13 13:42:41,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:42:41,385 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 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 90 [2024-11-13 13:42:41,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:41,522 INFO L225 Difference]: With dead ends: 61217 [2024-11-13 13:42:41,522 INFO L226 Difference]: Without dead ends: 54527 [2024-11-13 13:42:41,541 INFO L431 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 [2024-11-13 13:42:41,542 INFO L432 NwaCegarLoop]: 1633 mSDtfsCounter, 8124 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8124 SdHoareTripleChecker+Valid, 3981 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:41,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8124 Valid, 3981 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:42:41,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54527 states. [2024-11-13 13:42:42,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54527 to 29715. [2024-11-13 13:42:42,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29715 states, 29713 states have (on average 1.4447211658196748) internal successors, (42927), 29714 states have internal predecessors, (42927), 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) [2024-11-13 13:42:42,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29715 states to 29715 states and 42927 transitions. [2024-11-13 13:42:42,801 INFO L78 Accepts]: Start accepts. Automaton has 29715 states and 42927 transitions. Word has length 90 [2024-11-13 13:42:42,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:42,801 INFO L471 AbstractCegarLoop]: Abstraction has 29715 states and 42927 transitions. [2024-11-13 13:42:42,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 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) [2024-11-13 13:42:42,802 INFO L276 IsEmpty]: Start isEmpty. Operand 29715 states and 42927 transitions. [2024-11-13 13:42:42,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-13 13:42:42,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:42,808 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:42:42,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 13:42:42,808 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:42,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:42,812 INFO L85 PathProgramCache]: Analyzing trace with hash -717635322, now seen corresponding path program 1 times [2024-11-13 13:42:42,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:42,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204184162] [2024-11-13 13:42:42,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:42,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:43,100 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 13:42:43,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:43,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204184162] [2024-11-13 13:42:43,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204184162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:43,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:43,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:42:43,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364455361] [2024-11-13 13:42:43,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:43,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:42:43,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:43,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:42:43,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:42:43,103 INFO L87 Difference]: Start difference. First operand 29715 states and 42927 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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) [2024-11-13 13:42:44,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:44,967 INFO L93 Difference]: Finished difference Result 67905 states and 97782 transitions. [2024-11-13 13:42:44,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:42:44,967 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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 90 [2024-11-13 13:42:44,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:45,047 INFO L225 Difference]: With dead ends: 67905 [2024-11-13 13:42:45,047 INFO L226 Difference]: Without dead ends: 61215 [2024-11-13 13:42:45,067 INFO L431 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 [2024-11-13 13:42:45,068 INFO L432 NwaCegarLoop]: 1631 mSDtfsCounter, 8179 mSDsluCounter, 2315 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8179 SdHoareTripleChecker+Valid, 3946 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:45,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8179 Valid, 3946 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:42:45,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61215 states. [2024-11-13 13:42:46,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61215 to 36403. [2024-11-13 13:42:46,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36403 states, 36401 states have (on average 1.4403725172385373) internal successors, (52431), 36402 states have internal predecessors, (52431), 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) [2024-11-13 13:42:46,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36403 states to 36403 states and 52431 transitions. [2024-11-13 13:42:46,285 INFO L78 Accepts]: Start accepts. Automaton has 36403 states and 52431 transitions. Word has length 90 [2024-11-13 13:42:46,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:46,285 INFO L471 AbstractCegarLoop]: Abstraction has 36403 states and 52431 transitions. [2024-11-13 13:42:46,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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) [2024-11-13 13:42:46,285 INFO L276 IsEmpty]: Start isEmpty. Operand 36403 states and 52431 transitions. [2024-11-13 13:42:46,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-13 13:42:46,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:46,290 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:42:46,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 13:42:46,290 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:46,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:46,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1063297542, now seen corresponding path program 1 times [2024-11-13 13:42:46,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:46,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382108184] [2024-11-13 13:42:46,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:46,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:46,536 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 13:42:46,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:46,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382108184] [2024-11-13 13:42:46,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382108184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:46,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:46,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:42:46,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252580117] [2024-11-13 13:42:46,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:46,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:42:46,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:46,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:42:46,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:42:46,538 INFO L87 Difference]: Start difference. First operand 36403 states and 52431 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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) [2024-11-13 13:42:48,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:48,638 INFO L93 Difference]: Finished difference Result 74593 states and 107286 transitions. [2024-11-13 13:42:48,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:42:48,638 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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 90 [2024-11-13 13:42:48,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:48,712 INFO L225 Difference]: With dead ends: 74593 [2024-11-13 13:42:48,712 INFO L226 Difference]: Without dead ends: 67903 [2024-11-13 13:42:48,726 INFO L431 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 [2024-11-13 13:42:48,727 INFO L432 NwaCegarLoop]: 1631 mSDtfsCounter, 8092 mSDsluCounter, 2375 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8092 SdHoareTripleChecker+Valid, 4006 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:48,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8092 Valid, 4006 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:42:48,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67903 states. [2024-11-13 13:42:50,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67903 to 43091. [2024-11-13 13:42:50,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43091 states, 43089 states have (on average 1.437373807700341) internal successors, (61935), 43090 states have internal predecessors, (61935), 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) [2024-11-13 13:42:50,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43091 states to 43091 states and 61935 transitions. [2024-11-13 13:42:50,465 INFO L78 Accepts]: Start accepts. Automaton has 43091 states and 61935 transitions. Word has length 90 [2024-11-13 13:42:50,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:50,465 INFO L471 AbstractCegarLoop]: Abstraction has 43091 states and 61935 transitions. [2024-11-13 13:42:50,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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) [2024-11-13 13:42:50,466 INFO L276 IsEmpty]: Start isEmpty. Operand 43091 states and 61935 transitions. [2024-11-13 13:42:50,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-13 13:42:50,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:50,470 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:42:50,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 13:42:50,470 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:50,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:50,471 INFO L85 PathProgramCache]: Analyzing trace with hash 259571462, now seen corresponding path program 1 times [2024-11-13 13:42:50,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:50,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098129227] [2024-11-13 13:42:50,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:50,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:50,676 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 13:42:50,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:50,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098129227] [2024-11-13 13:42:50,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098129227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:50,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:50,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:42:50,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631416654] [2024-11-13 13:42:50,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:50,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:42:50,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:50,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:42:50,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:42:50,677 INFO L87 Difference]: Start difference. First operand 43091 states and 61935 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-11-13 13:42:53,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:53,207 INFO L93 Difference]: Finished difference Result 81281 states and 116790 transitions. [2024-11-13 13:42:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:42:53,208 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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 90 [2024-11-13 13:42:53,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:53,303 INFO L225 Difference]: With dead ends: 81281 [2024-11-13 13:42:53,303 INFO L226 Difference]: Without dead ends: 74591 [2024-11-13 13:42:53,319 INFO L431 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 [2024-11-13 13:42:53,320 INFO L432 NwaCegarLoop]: 1630 mSDtfsCounter, 8028 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8028 SdHoareTripleChecker+Valid, 4154 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:53,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8028 Valid, 4154 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:42:53,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74591 states. [2024-11-13 13:42:55,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74591 to 49779. [2024-11-13 13:42:55,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49779 states, 49777 states have (on average 1.4351809068445265) internal successors, (71439), 49778 states have internal predecessors, (71439), 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) [2024-11-13 13:42:55,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49779 states to 49779 states and 71439 transitions. [2024-11-13 13:42:55,217 INFO L78 Accepts]: Start accepts. Automaton has 49779 states and 71439 transitions. Word has length 90 [2024-11-13 13:42:55,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:55,217 INFO L471 AbstractCegarLoop]: Abstraction has 49779 states and 71439 transitions. [2024-11-13 13:42:55,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-11-13 13:42:55,218 INFO L276 IsEmpty]: Start isEmpty. Operand 49779 states and 71439 transitions. [2024-11-13 13:42:55,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-13 13:42:55,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:55,223 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:42:55,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 13:42:55,223 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:55,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:55,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1651062771, now seen corresponding path program 1 times [2024-11-13 13:42:55,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:55,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411035800] [2024-11-13 13:42:55,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:55,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:55,364 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:42:55,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:55,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411035800] [2024-11-13 13:42:55,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411035800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:55,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:55,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:42:55,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244645212] [2024-11-13 13:42:55,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:55,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:42:55,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:55,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:42:55,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:42:55,366 INFO L87 Difference]: Start difference. First operand 49779 states and 71439 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-11-13 13:42:56,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:56,792 INFO L93 Difference]: Finished difference Result 98007 states and 140017 transitions. [2024-11-13 13:42:56,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:42:56,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2024-11-13 13:42:56,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:56,838 INFO L225 Difference]: With dead ends: 98007 [2024-11-13 13:42:56,838 INFO L226 Difference]: Without dead ends: 49781 [2024-11-13 13:42:56,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:42:56,859 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 53 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3154 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:56,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3154 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:42:56,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49781 states. [2024-11-13 13:42:58,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49781 to 49779. [2024-11-13 13:42:58,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49779 states, 49777 states have (on average 1.421359262309902) internal successors, (70751), 49778 states have internal predecessors, (70751), 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) [2024-11-13 13:42:58,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49779 states to 49779 states and 70751 transitions. [2024-11-13 13:42:58,707 INFO L78 Accepts]: Start accepts. Automaton has 49779 states and 70751 transitions. Word has length 91 [2024-11-13 13:42:58,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:58,708 INFO L471 AbstractCegarLoop]: Abstraction has 49779 states and 70751 transitions. [2024-11-13 13:42:58,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-11-13 13:42:58,708 INFO L276 IsEmpty]: Start isEmpty. Operand 49779 states and 70751 transitions. [2024-11-13 13:42:58,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-13 13:42:58,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:58,711 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:42:58,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 13:42:58,711 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:58,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:58,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1172043490, now seen corresponding path program 1 times [2024-11-13 13:42:58,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:42:58,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746849986] [2024-11-13 13:42:58,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:58,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:42:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:58,832 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:42:58,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:42:58,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746849986] [2024-11-13 13:42:58,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746849986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:58,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:58,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:42:58,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810495853] [2024-11-13 13:42:58,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:58,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:42:58,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:42:58,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:42:58,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:42:58,835 INFO L87 Difference]: Start difference. First operand 49779 states and 70751 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-13 13:42:59,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:59,681 INFO L93 Difference]: Finished difference Result 67564 states and 95975 transitions. [2024-11-13 13:42:59,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:42:59,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 92 [2024-11-13 13:42:59,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:59,709 INFO L225 Difference]: With dead ends: 67564 [2024-11-13 13:42:59,709 INFO L226 Difference]: Without dead ends: 19338 [2024-11-13 13:42:59,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:42:59,737 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 47 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:59,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3151 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:42:59,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19338 states. [2024-11-13 13:43:00,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19338 to 19330. [2024-11-13 13:43:00,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19330 states, 19328 states have (on average 1.4402938741721854) internal successors, (27838), 19329 states have internal predecessors, (27838), 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) [2024-11-13 13:43:00,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19330 states to 19330 states and 27838 transitions. [2024-11-13 13:43:00,394 INFO L78 Accepts]: Start accepts. Automaton has 19330 states and 27838 transitions. Word has length 92 [2024-11-13 13:43:00,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:00,394 INFO L471 AbstractCegarLoop]: Abstraction has 19330 states and 27838 transitions. [2024-11-13 13:43:00,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-13 13:43:00,394 INFO L276 IsEmpty]: Start isEmpty. Operand 19330 states and 27838 transitions. [2024-11-13 13:43:00,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-13 13:43:00,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:00,396 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:43:00,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 13:43:00,396 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:43:00,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:00,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1568704955, now seen corresponding path program 1 times [2024-11-13 13:43:00,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:43:00,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285571697] [2024-11-13 13:43:00,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:00,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:43:00,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:00,524 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:43:00,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:43:00,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285571697] [2024-11-13 13:43:00,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285571697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:43:00,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:43:00,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:43:00,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633475851] [2024-11-13 13:43:00,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:43:00,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:43:00,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:43:00,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:43:00,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:43:00,526 INFO L87 Difference]: Start difference. First operand 19330 states and 27838 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2024-11-13 13:43:00,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:00,806 INFO L93 Difference]: Finished difference Result 28214 states and 40320 transitions. [2024-11-13 13:43:00,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:43:00,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2024-11-13 13:43:00,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:00,824 INFO L225 Difference]: With dead ends: 28214 [2024-11-13 13:43:00,824 INFO L226 Difference]: Without dead ends: 10452 [2024-11-13 13:43:00,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:43:00,836 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 49 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:43:00,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 3130 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:43:00,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10452 states. [2024-11-13 13:43:01,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10452 to 10450. [2024-11-13 13:43:01,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10450 states, 10448 states have (on average 1.4584609494640122) internal successors, (15238), 10449 states have internal predecessors, (15238), 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) [2024-11-13 13:43:01,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10450 states to 10450 states and 15238 transitions. [2024-11-13 13:43:01,155 INFO L78 Accepts]: Start accepts. Automaton has 10450 states and 15238 transitions. Word has length 93 [2024-11-13 13:43:01,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:01,155 INFO L471 AbstractCegarLoop]: Abstraction has 10450 states and 15238 transitions. [2024-11-13 13:43:01,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2024-11-13 13:43:01,155 INFO L276 IsEmpty]: Start isEmpty. Operand 10450 states and 15238 transitions. [2024-11-13 13:43:01,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-13 13:43:01,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:01,157 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:43:01,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 13:43:01,157 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:43:01,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:01,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1280549655, now seen corresponding path program 1 times [2024-11-13 13:43:01,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:43:01,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935004738] [2024-11-13 13:43:01,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:01,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:43:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:01,367 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:43:01,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:43:01,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935004738] [2024-11-13 13:43:01,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935004738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:43:01,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:43:01,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:43:01,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476140581] [2024-11-13 13:43:01,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:43:01,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:43:01,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:43:01,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:43:01,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:43:01,368 INFO L87 Difference]: Start difference. First operand 10450 states and 15238 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-11-13 13:43:01,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:01,594 INFO L93 Difference]: Finished difference Result 14894 states and 21420 transitions. [2024-11-13 13:43:01,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:43:01,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2024-11-13 13:43:01,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:01,601 INFO L225 Difference]: With dead ends: 14894 [2024-11-13 13:43:01,601 INFO L226 Difference]: Without dead ends: 6012 [2024-11-13 13:43:01,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:43:01,607 INFO L432 NwaCegarLoop]: 1589 mSDtfsCounter, 46 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 3115 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:43:01,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 3115 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:43:01,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6012 states. [2024-11-13 13:43:01,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6012 to 6010. [2024-11-13 13:43:01,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6010 states, 6008 states have (on average 1.4976697736351532) internal successors, (8998), 6009 states have internal predecessors, (8998), 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) [2024-11-13 13:43:01,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6010 states to 6010 states and 8998 transitions. [2024-11-13 13:43:01,783 INFO L78 Accepts]: Start accepts. Automaton has 6010 states and 8998 transitions. Word has length 95 [2024-11-13 13:43:01,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:01,783 INFO L471 AbstractCegarLoop]: Abstraction has 6010 states and 8998 transitions. [2024-11-13 13:43:01,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-11-13 13:43:01,783 INFO L276 IsEmpty]: Start isEmpty. Operand 6010 states and 8998 transitions. [2024-11-13 13:43:01,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-13 13:43:01,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:01,785 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:43:01,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 13:43:01,785 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:43:01,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:01,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1442242153, now seen corresponding path program 1 times [2024-11-13 13:43:01,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:43:01,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349106693] [2024-11-13 13:43:01,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:01,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:43:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:01,924 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:43:01,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:43:01,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349106693] [2024-11-13 13:43:01,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349106693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:43:01,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:43:01,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:43:01,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880396603] [2024-11-13 13:43:01,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:43:01,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:43:01,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:43:01,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:43:01,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:43:01,926 INFO L87 Difference]: Start difference. First operand 6010 states and 8998 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 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) [2024-11-13 13:43:02,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:02,058 INFO L93 Difference]: Finished difference Result 8234 states and 12060 transitions. [2024-11-13 13:43:02,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:43:02,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 [2024-11-13 13:43:02,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:02,066 INFO L225 Difference]: With dead ends: 8234 [2024-11-13 13:43:02,066 INFO L226 Difference]: Without dead ends: 3792 [2024-11-13 13:43:02,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:43:02,070 INFO L432 NwaCegarLoop]: 1582 mSDtfsCounter, 43 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:43:02,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3100 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:43:02,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3792 states. [2024-11-13 13:43:02,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3792 to 3790. [2024-11-13 13:43:02,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3790 states, 3788 states have (on average 1.559662090813094) internal successors, (5908), 3789 states have internal predecessors, (5908), 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) [2024-11-13 13:43:02,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3790 states to 3790 states and 5908 transitions. [2024-11-13 13:43:02,224 INFO L78 Accepts]: Start accepts. Automaton has 3790 states and 5908 transitions. Word has length 97 [2024-11-13 13:43:02,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:02,224 INFO L471 AbstractCegarLoop]: Abstraction has 3790 states and 5908 transitions. [2024-11-13 13:43:02,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-11-13 13:43:02,224 INFO L276 IsEmpty]: Start isEmpty. Operand 3790 states and 5908 transitions. [2024-11-13 13:43:02,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-13 13:43:02,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:02,226 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:43:02,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-13 13:43:02,226 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:43:02,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:02,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1264732219, now seen corresponding path program 1 times [2024-11-13 13:43:02,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:43:02,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726657472] [2024-11-13 13:43:02,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:02,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:43:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:02,373 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:43:02,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:43:02,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726657472] [2024-11-13 13:43:02,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726657472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:43:02,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:43:02,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:43:02,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312790587] [2024-11-13 13:43:02,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:43:02,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:43:02,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:43:02,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:43:02,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:43:02,375 INFO L87 Difference]: Start difference. First operand 3790 states and 5908 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 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) [2024-11-13 13:43:02,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:02,457 INFO L93 Difference]: Finished difference Result 4904 states and 7425 transitions. [2024-11-13 13:43:02,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:43:02,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 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 [2024-11-13 13:43:02,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:02,464 INFO L225 Difference]: With dead ends: 4904 [2024-11-13 13:43:02,464 INFO L226 Difference]: Without dead ends: 2682 [2024-11-13 13:43:02,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:43:02,467 INFO L432 NwaCegarLoop]: 1575 mSDtfsCounter, 40 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 3085 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:43:02,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 3085 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:43:02,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2024-11-13 13:43:02,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2680. [2024-11-13 13:43:02,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2680 states, 2678 states have (on average 1.6348020911127707) internal successors, (4378), 2679 states have internal predecessors, (4378), 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) [2024-11-13 13:43:02,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2680 states to 2680 states and 4378 transitions. [2024-11-13 13:43:02,565 INFO L78 Accepts]: Start accepts. Automaton has 2680 states and 4378 transitions. Word has length 99 [2024-11-13 13:43:02,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:02,565 INFO L471 AbstractCegarLoop]: Abstraction has 2680 states and 4378 transitions. [2024-11-13 13:43:02,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 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) [2024-11-13 13:43:02,566 INFO L276 IsEmpty]: Start isEmpty. Operand 2680 states and 4378 transitions. [2024-11-13 13:43:02,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-13 13:43:02,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:02,567 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:43:02,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-13 13:43:02,568 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:43:02,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:02,568 INFO L85 PathProgramCache]: Analyzing trace with hash 544669837, now seen corresponding path program 1 times [2024-11-13 13:43:02,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:43:02,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125417502] [2024-11-13 13:43:02,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:02,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:43:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:04,007 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:43:04,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:43:04,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125417502] [2024-11-13 13:43:04,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125417502] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:43:04,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434967455] [2024-11-13 13:43:04,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:04,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:04,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:43:04,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:43:04,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:43:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:04,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-13 13:43:04,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:43:04,807 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:43:04,808 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:43:05,724 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:43:05,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434967455] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:43:05,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:43:05,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 6] total 22 [2024-11-13 13:43:05,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72613982] [2024-11-13 13:43:05,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:43:05,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 13:43:05,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:43:05,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 13:43:05,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2024-11-13 13:43:05,729 INFO L87 Difference]: Start difference. First operand 2680 states and 4378 transitions. Second operand has 22 states, 22 states have (on average 13.181818181818182) internal successors, (290), 22 states have internal predecessors, (290), 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) [2024-11-13 13:43:13,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:13,463 INFO L93 Difference]: Finished difference Result 13209 states and 18397 transitions. [2024-11-13 13:43:13,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-11-13 13:43:13,464 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.181818181818182) internal successors, (290), 22 states have internal predecessors, (290), 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 [2024-11-13 13:43:13,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:13,477 INFO L225 Difference]: With dead ends: 13209 [2024-11-13 13:43:13,478 INFO L226 Difference]: Without dead ends: 11999 [2024-11-13 13:43:13,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4222 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=1877, Invalid=9679, Unknown=0, NotChecked=0, Total=11556 [2024-11-13 13:43:13,485 INFO L432 NwaCegarLoop]: 1550 mSDtfsCounter, 19103 mSDsluCounter, 8229 mSDsCounter, 0 mSdLazyCounter, 1881 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19103 SdHoareTripleChecker+Valid, 9779 SdHoareTripleChecker+Invalid, 1974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:43:13,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19103 Valid, 9779 Invalid, 1974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1881 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 13:43:13,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11999 states. [2024-11-13 13:43:13,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11999 to 11027. [2024-11-13 13:43:13,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11027 states, 11025 states have (on average 1.396281179138322) internal successors, (15394), 11026 states have internal predecessors, (15394), 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) [2024-11-13 13:43:13,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11027 states to 11027 states and 15394 transitions. [2024-11-13 13:43:13,822 INFO L78 Accepts]: Start accepts. Automaton has 11027 states and 15394 transitions. Word has length 101 [2024-11-13 13:43:13,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:13,822 INFO L471 AbstractCegarLoop]: Abstraction has 11027 states and 15394 transitions. [2024-11-13 13:43:13,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.181818181818182) internal successors, (290), 22 states have internal predecessors, (290), 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) [2024-11-13 13:43:13,823 INFO L276 IsEmpty]: Start isEmpty. Operand 11027 states and 15394 transitions. [2024-11-13 13:43:13,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-13 13:43:13,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:13,824 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:43:13,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 13:43:14,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:14,025 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:43:14,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:14,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1064411594, now seen corresponding path program 1 times [2024-11-13 13:43:14,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:43:14,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000837183] [2024-11-13 13:43:14,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:14,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:43:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:15,379 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:43:15,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:43:15,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000837183] [2024-11-13 13:43:15,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000837183] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:43:15,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289049465] [2024-11-13 13:43:15,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:15,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:15,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:43:15,382 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:43:15,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:43:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:15,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 13:43:15,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:43:16,282 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:43:16,282 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:43:17,705 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:43:17,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289049465] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:43:17,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:43:17,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 25 [2024-11-13 13:43:17,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116319691] [2024-11-13 13:43:17,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:43:17,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-13 13:43:17,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:43:17,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-13 13:43:17,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=548, Unknown=0, NotChecked=0, Total=650 [2024-11-13 13:43:17,707 INFO L87 Difference]: Start difference. First operand 11027 states and 15394 transitions. Second operand has 26 states, 26 states have (on average 10.0) internal successors, (260), 25 states have internal predecessors, (260), 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) [2024-11-13 13:43:18,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:18,922 INFO L93 Difference]: Finished difference Result 30183 states and 40851 transitions. [2024-11-13 13:43:18,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 13:43:18,923 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.0) internal successors, (260), 25 states have internal predecessors, (260), 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 [2024-11-13 13:43:18,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:18,950 INFO L225 Difference]: With dead ends: 30183 [2024-11-13 13:43:18,950 INFO L226 Difference]: Without dead ends: 21243 [2024-11-13 13:43:18,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=295, Invalid=1111, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 13:43:18,960 INFO L432 NwaCegarLoop]: 1523 mSDtfsCounter, 14037 mSDsluCounter, 5081 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14037 SdHoareTripleChecker+Valid, 6604 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:43:18,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14037 Valid, 6604 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 13:43:18,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21243 states. [2024-11-13 13:43:19,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21243 to 20941. [2024-11-13 13:43:19,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20941 states, 20939 states have (on average 1.3437604470127513) internal successors, (28137), 20940 states have internal predecessors, (28137), 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) [2024-11-13 13:43:19,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20941 states to 20941 states and 28137 transitions. [2024-11-13 13:43:19,587 INFO L78 Accepts]: Start accepts. Automaton has 20941 states and 28137 transitions. Word has length 102 [2024-11-13 13:43:19,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:19,588 INFO L471 AbstractCegarLoop]: Abstraction has 20941 states and 28137 transitions. [2024-11-13 13:43:19,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.0) internal successors, (260), 25 states have internal predecessors, (260), 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) [2024-11-13 13:43:19,588 INFO L276 IsEmpty]: Start isEmpty. Operand 20941 states and 28137 transitions. [2024-11-13 13:43:19,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-13 13:43:19,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:19,591 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:43:19,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:43:19,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e5a6123-12ea-4ae1-b720-3c49b1baa2f1/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:19,792 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:43:19,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:19,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1624933430, now seen corresponding path program 1 times [2024-11-13 13:43:19,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:43:19,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350526104] [2024-11-13 13:43:19,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:19,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:43:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat