./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e82362cf624f0e845caa7a60d1834859999824a1181a9b545ac94ec06fd3aa08 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 13:14:51,124 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 13:14:51,183 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-01 13:14:51,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 13:14:51,189 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 13:14:51,212 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 13:14:51,213 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 13:14:51,213 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 13:14:51,214 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 13:14:51,214 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 13:14:51,214 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 13:14:51,214 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 13:14:51,214 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 13:14:51,214 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 13:14:51,214 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 13:14:51,215 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 13:14:51,215 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 13:14:51,215 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 13:14:51,215 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 13:14:51,215 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 13:14:51,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 13:14:51,215 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 13:14:51,215 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 13:14:51,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 13:14:51,215 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 13:14:51,215 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 13:14:51,215 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 13:14:51,216 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 13:14:51,216 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 13:14:51,216 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:14:51,216 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:14:51,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:14:51,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:14:51,216 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 13:14:51,216 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:14:51,216 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:14:51,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:14:51,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:14:51,217 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 13:14:51,217 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 13:14:51,217 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 13:14:51,217 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 13:14:51,217 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 13:14:51,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 13:14:51,217 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 13:14:51,217 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 13:14:51,217 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 13:14:51,217 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 13:14:51,217 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_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e82362cf624f0e845caa7a60d1834859999824a1181a9b545ac94ec06fd3aa08 [2024-12-01 13:14:51,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 13:14:51,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 13:14:51,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 13:14:51,493 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 13:14:51,493 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 13:14:51,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.ufo.UNBOUNDED.pals.c [2024-12-01 13:14:54,357 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/data/e1623854f/eaf7db66417748b1a68b14ca23ca5b80/FLAG530475125 [2024-12-01 13:14:54,649 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 13:14:54,649 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/sv-benchmarks/c/seq-mthreaded/pals_lcr.8.ufo.UNBOUNDED.pals.c [2024-12-01 13:14:54,660 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/data/e1623854f/eaf7db66417748b1a68b14ca23ca5b80/FLAG530475125 [2024-12-01 13:14:54,674 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/data/e1623854f/eaf7db66417748b1a68b14ca23ca5b80 [2024-12-01 13:14:54,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 13:14:54,677 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 13:14:54,678 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 13:14:54,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 13:14:54,683 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 13:14:54,684 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:14:54" (1/1) ... [2024-12-01 13:14:54,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dc4d37e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:54, skipping insertion in model container [2024-12-01 13:14:54,685 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:14:54" (1/1) ... [2024-12-01 13:14:54,710 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 13:14:54,952 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_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/sv-benchmarks/c/seq-mthreaded/pals_lcr.8.ufo.UNBOUNDED.pals.c[26481,26494] [2024-12-01 13:14:54,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:14:54,969 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 13:14:55,031 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_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/sv-benchmarks/c/seq-mthreaded/pals_lcr.8.ufo.UNBOUNDED.pals.c[26481,26494] [2024-12-01 13:14:55,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:14:55,046 INFO L204 MainTranslator]: Completed translation [2024-12-01 13:14:55,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:55 WrapperNode [2024-12-01 13:14:55,047 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 13:14:55,048 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 13:14:55,048 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 13:14:55,048 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 13:14:55,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:55" (1/1) ... [2024-12-01 13:14:55,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:55" (1/1) ... [2024-12-01 13:14:55,096 INFO L138 Inliner]: procedures = 28, calls = 19, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 529 [2024-12-01 13:14:55,096 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 13:14:55,097 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 13:14:55,097 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 13:14:55,097 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 13:14:55,107 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:55" (1/1) ... [2024-12-01 13:14:55,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:55" (1/1) ... [2024-12-01 13:14:55,111 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:55" (1/1) ... [2024-12-01 13:14:55,131 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-01 13:14:55,132 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:55" (1/1) ... [2024-12-01 13:14:55,132 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:55" (1/1) ... [2024-12-01 13:14:55,143 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:55" (1/1) ... [2024-12-01 13:14:55,144 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:55" (1/1) ... [2024-12-01 13:14:55,152 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:55" (1/1) ... [2024-12-01 13:14:55,154 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:55" (1/1) ... [2024-12-01 13:14:55,157 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:55" (1/1) ... [2024-12-01 13:14:55,161 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 13:14:55,162 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 13:14:55,162 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 13:14:55,162 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 13:14:55,163 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:55" (1/1) ... [2024-12-01 13:14:55,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:14:55,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:14:55,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 13:14:55,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 13:14:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 13:14:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-01 13:14:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 13:14:55,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 13:14:55,328 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 13:14:55,330 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 13:14:55,852 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2024-12-01 13:14:55,852 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 13:14:55,864 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 13:14:55,864 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-01 13:14:55,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:14:55 BoogieIcfgContainer [2024-12-01 13:14:55,865 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 13:14:55,868 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 13:14:55,868 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 13:14:55,872 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 13:14:55,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 01:14:54" (1/3) ... [2024-12-01 13:14:55,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238e885d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:14:55, skipping insertion in model container [2024-12-01 13:14:55,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:14:55" (2/3) ... [2024-12-01 13:14:55,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238e885d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:14:55, skipping insertion in model container [2024-12-01 13:14:55,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:14:55" (3/3) ... [2024-12-01 13:14:55,875 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.UNBOUNDED.pals.c [2024-12-01 13:14:55,889 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 13:14:55,892 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.8.ufo.UNBOUNDED.pals.c that has 1 procedures, 133 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-01 13:14:55,943 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 13:14:55,954 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;@3bd007f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 13:14:55,955 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-01 13:14:55,958 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 131 states have (on average 1.7938931297709924) internal successors, (235), 132 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:14:55,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-01 13:14:55,964 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:14:55,964 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:14:55,965 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:14:55,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:14:55,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1185784111, now seen corresponding path program 1 times [2024-12-01 13:14:55,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:14:55,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898189506] [2024-12-01 13:14:55,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:14:55,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:14:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:14:56,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:14:56,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:14:56,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898189506] [2024-12-01 13:14:56,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898189506] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:14:56,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:14:56,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 13:14:56,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228865982] [2024-12-01 13:14:56,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:14:56,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-01 13:14:56,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:14:56,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-01 13:14:56,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-01 13:14:56,243 INFO L87 Difference]: Start difference. First operand has 133 states, 131 states have (on average 1.7938931297709924) internal successors, (235), 132 states have internal predecessors, (235), 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 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:14:56,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:14:56,264 INFO L93 Difference]: Finished difference Result 196 states and 339 transitions. [2024-12-01 13:14:56,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-01 13:14:56,266 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 29 [2024-12-01 13:14:56,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:14:56,272 INFO L225 Difference]: With dead ends: 196 [2024-12-01 13:14:56,272 INFO L226 Difference]: Without dead ends: 129 [2024-12-01 13:14:56,274 INFO L434 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 [2024-12-01 13:14:56,277 INFO L435 NwaCegarLoop]: 228 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, 228 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:14:56,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:14:56,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-12-01 13:14:56,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-12-01 13:14:56,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.78125) internal successors, (228), 128 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:14:56,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 228 transitions. [2024-12-01 13:14:56,307 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 228 transitions. Word has length 29 [2024-12-01 13:14:56,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:14:56,307 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 228 transitions. [2024-12-01 13:14:56,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:14:56,307 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 228 transitions. [2024-12-01 13:14:56,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-01 13:14:56,308 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:14:56,309 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:14:56,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-01 13:14:56,309 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:14:56,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:14:56,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1319797617, now seen corresponding path program 1 times [2024-12-01 13:14:56,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:14:56,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450696475] [2024-12-01 13:14:56,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:14:56,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:14:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:14:56,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:14:56,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:14:56,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450696475] [2024-12-01 13:14:56,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450696475] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:14:56,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:14:56,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:14:56,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984891061] [2024-12-01 13:14:56,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:14:56,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:14:56,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:14:56,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:14:56,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:14:56,552 INFO L87 Difference]: Start difference. First operand 129 states and 228 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:14:56,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:14:56,678 INFO L93 Difference]: Finished difference Result 195 states and 332 transitions. [2024-12-01 13:14:56,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:14:56,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 29 [2024-12-01 13:14:56,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:14:56,679 INFO L225 Difference]: With dead ends: 195 [2024-12-01 13:14:56,679 INFO L226 Difference]: Without dead ends: 129 [2024-12-01 13:14:56,680 INFO L434 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 [2024-12-01 13:14:56,680 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 0 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 13:14:56,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 838 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 13:14:56,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-12-01 13:14:56,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-12-01 13:14:56,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.3046875) internal successors, (167), 128 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:14:56,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 167 transitions. [2024-12-01 13:14:56,688 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 167 transitions. Word has length 29 [2024-12-01 13:14:56,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:14:56,688 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 167 transitions. [2024-12-01 13:14:56,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:14:56,688 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 167 transitions. [2024-12-01 13:14:56,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-01 13:14:56,690 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:14:56,690 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:14:56,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 13:14:56,691 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:14:56,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:14:56,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1496007295, now seen corresponding path program 1 times [2024-12-01 13:14:56,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:14:56,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710864854] [2024-12-01 13:14:56,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:14:56,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:14:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:14:57,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:14:57,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:14:57,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710864854] [2024-12-01 13:14:57,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710864854] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:14:57,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:14:57,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-01 13:14:57,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121818161] [2024-12-01 13:14:57,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:14:57,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:14:57,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:14:57,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:14:57,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:14:57,087 INFO L87 Difference]: Start difference. First operand 129 states and 167 transitions. Second operand has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 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) [2024-12-01 13:14:57,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:14:57,693 INFO L93 Difference]: Finished difference Result 1121 states and 1767 transitions. [2024-12-01 13:14:57,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-01 13:14:57,694 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 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 89 [2024-12-01 13:14:57,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:14:57,700 INFO L225 Difference]: With dead ends: 1121 [2024-12-01 13:14:57,700 INFO L226 Difference]: Without dead ends: 1059 [2024-12-01 13:14:57,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-12-01 13:14:57,702 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 1981 mSDsluCounter, 4380 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1981 SdHoareTripleChecker+Valid, 4541 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:14:57,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1981 Valid, 4541 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 13:14:57,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2024-12-01 13:14:57,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 189. [2024-12-01 13:14:57,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 188 states have (on average 1.4042553191489362) internal successors, (264), 188 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:14:57,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 264 transitions. [2024-12-01 13:14:57,730 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 264 transitions. Word has length 89 [2024-12-01 13:14:57,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:14:57,731 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 264 transitions. [2024-12-01 13:14:57,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 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) [2024-12-01 13:14:57,731 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 264 transitions. [2024-12-01 13:14:57,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-01 13:14:57,733 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:14:57,733 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:14:57,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-01 13:14:57,733 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:14:57,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:14:57,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1728245231, now seen corresponding path program 1 times [2024-12-01 13:14:57,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:14:57,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192937135] [2024-12-01 13:14:57,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:14:57,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:14:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:14:57,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:14:57,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:14:57,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192937135] [2024-12-01 13:14:57,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192937135] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:14:57,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:14:57,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:14:57,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465361873] [2024-12-01 13:14:57,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:14:57,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:14:57,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:14:57,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:14:57,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:14:57,900 INFO L87 Difference]: Start difference. First operand 189 states and 264 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) [2024-12-01 13:14:57,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:14:57,931 INFO L93 Difference]: Finished difference Result 422 states and 639 transitions. [2024-12-01 13:14:57,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:14:57,931 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 [2024-12-01 13:14:57,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:14:57,933 INFO L225 Difference]: With dead ends: 422 [2024-12-01 13:14:57,933 INFO L226 Difference]: Without dead ends: 300 [2024-12-01 13:14:57,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:14:57,935 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 69 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:14:57,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 256 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:14:57,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-12-01 13:14:57,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 296. [2024-12-01 13:14:57,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 1.471186440677966) internal successors, (434), 295 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:14:57,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 434 transitions. [2024-12-01 13:14:57,950 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 434 transitions. Word has length 91 [2024-12-01 13:14:57,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:14:57,951 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 434 transitions. [2024-12-01 13:14:57,951 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) [2024-12-01 13:14:57,951 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 434 transitions. [2024-12-01 13:14:57,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-01 13:14:57,953 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:14:57,953 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:14:57,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-01 13:14:57,954 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:14:57,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:14:57,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1794738743, now seen corresponding path program 1 times [2024-12-01 13:14:57,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:14:57,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508640302] [2024-12-01 13:14:57,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:14:57,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:14:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:14:58,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:14:58,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:14:58,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508640302] [2024-12-01 13:14:58,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508640302] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:14:58,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:14:58,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-01 13:14:58,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246474248] [2024-12-01 13:14:58,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:14:58,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:14:58,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:14:58,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:14:58,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:14:58,533 INFO L87 Difference]: Start difference. First operand 296 states and 434 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 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) [2024-12-01 13:14:59,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:14:59,065 INFO L93 Difference]: Finished difference Result 527 states and 802 transitions. [2024-12-01 13:14:59,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-01 13:14:59,065 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 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 [2024-12-01 13:14:59,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:14:59,067 INFO L225 Difference]: With dead ends: 527 [2024-12-01 13:14:59,067 INFO L226 Difference]: Without dead ends: 298 [2024-12-01 13:14:59,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-12-01 13:14:59,068 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 644 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 13:14:59,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 840 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 13:14:59,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-12-01 13:14:59,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 296. [2024-12-01 13:14:59,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 1.464406779661017) internal successors, (432), 295 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:14:59,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 432 transitions. [2024-12-01 13:14:59,079 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 432 transitions. Word has length 91 [2024-12-01 13:14:59,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:14:59,079 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 432 transitions. [2024-12-01 13:14:59,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 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) [2024-12-01 13:14:59,080 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 432 transitions. [2024-12-01 13:14:59,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-01 13:14:59,081 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:14:59,081 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:14:59,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-01 13:14:59,081 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:14:59,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:14:59,081 INFO L85 PathProgramCache]: Analyzing trace with hash -612396632, now seen corresponding path program 1 times [2024-12-01 13:14:59,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:14:59,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103756928] [2024-12-01 13:14:59,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:14:59,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:14:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:14:59,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:14:59,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:14:59,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103756928] [2024-12-01 13:14:59,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103756928] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:14:59,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:14:59,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-01 13:14:59,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108762451] [2024-12-01 13:14:59,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:14:59,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-01 13:14:59,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:14:59,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-01 13:14:59,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 13:14:59,447 INFO L87 Difference]: Start difference. First operand 296 states and 432 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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) [2024-12-01 13:14:59,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:14:59,492 INFO L93 Difference]: Finished difference Result 304 states and 441 transitions. [2024-12-01 13:14:59,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 13:14:59,492 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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 [2024-12-01 13:14:59,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:14:59,494 INFO L225 Difference]: With dead ends: 304 [2024-12-01 13:14:59,494 INFO L226 Difference]: Without dead ends: 302 [2024-12-01 13:14:59,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 13:14:59,495 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:14:59,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1114 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:14:59,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-12-01 13:14:59,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2024-12-01 13:14:59,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 301 states have (on average 1.451827242524917) internal successors, (437), 301 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:14:59,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 437 transitions. [2024-12-01 13:14:59,504 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 437 transitions. Word has length 92 [2024-12-01 13:14:59,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:14:59,505 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 437 transitions. [2024-12-01 13:14:59,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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) [2024-12-01 13:14:59,505 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 437 transitions. [2024-12-01 13:14:59,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-01 13:14:59,506 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:14:59,506 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:14:59,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-01 13:14:59,506 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:14:59,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:14:59,507 INFO L85 PathProgramCache]: Analyzing trace with hash 759003703, now seen corresponding path program 1 times [2024-12-01 13:14:59,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:14:59,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702478219] [2024-12-01 13:14:59,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:14:59,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:14:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:14:59,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:14:59,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:14:59,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702478219] [2024-12-01 13:14:59,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702478219] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:14:59,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:14:59,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:14:59,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128807102] [2024-12-01 13:14:59,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:14:59,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:14:59,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:14:59,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:14:59,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:14:59,600 INFO L87 Difference]: Start difference. First operand 302 states and 437 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) [2024-12-01 13:14:59,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:14:59,629 INFO L93 Difference]: Finished difference Result 756 states and 1149 transitions. [2024-12-01 13:14:59,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:14:59,630 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 [2024-12-01 13:14:59,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:14:59,632 INFO L225 Difference]: With dead ends: 756 [2024-12-01 13:14:59,632 INFO L226 Difference]: Without dead ends: 521 [2024-12-01 13:14:59,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:14:59,633 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 88 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 349 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 [2024-12-01 13:14:59,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 349 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:14:59,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-12-01 13:14:59,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 519. [2024-12-01 13:14:59,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 518 states have (on average 1.494208494208494) internal successors, (774), 518 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:14:59,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 774 transitions. [2024-12-01 13:14:59,648 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 774 transitions. Word has length 93 [2024-12-01 13:14:59,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:14:59,648 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 774 transitions. [2024-12-01 13:14:59,649 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) [2024-12-01 13:14:59,649 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 774 transitions. [2024-12-01 13:14:59,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-01 13:14:59,649 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:14:59,650 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:14:59,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-01 13:14:59,650 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:14:59,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:14:59,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1593894089, now seen corresponding path program 1 times [2024-12-01 13:14:59,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:14:59,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148987538] [2024-12-01 13:14:59,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:14:59,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:14:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:14:59,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:14:59,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:14:59,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148987538] [2024-12-01 13:14:59,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148987538] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:14:59,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:14:59,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:14:59,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726930081] [2024-12-01 13:14:59,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:14:59,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:14:59,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:14:59,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:14:59,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:14:59,739 INFO L87 Difference]: Start difference. First operand 519 states and 774 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) [2024-12-01 13:14:59,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:14:59,766 INFO L93 Difference]: Finished difference Result 1391 states and 2132 transitions. [2024-12-01 13:14:59,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:14:59,767 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 [2024-12-01 13:14:59,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:14:59,770 INFO L225 Difference]: With dead ends: 1391 [2024-12-01 13:14:59,770 INFO L226 Difference]: Without dead ends: 939 [2024-12-01 13:14:59,771 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:14:59,771 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 86 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 351 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 [2024-12-01 13:14:59,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 351 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:14:59,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2024-12-01 13:14:59,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 937. [2024-12-01 13:14:59,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 936 states have (on average 1.5128205128205128) internal successors, (1416), 936 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:14:59,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1416 transitions. [2024-12-01 13:14:59,802 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1416 transitions. Word has length 93 [2024-12-01 13:14:59,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:14:59,802 INFO L471 AbstractCegarLoop]: Abstraction has 937 states and 1416 transitions. [2024-12-01 13:14:59,802 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) [2024-12-01 13:14:59,803 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1416 transitions. [2024-12-01 13:14:59,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-01 13:14:59,803 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:14:59,803 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:14:59,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-01 13:14:59,804 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:14:59,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:14:59,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1430979529, now seen corresponding path program 1 times [2024-12-01 13:14:59,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:14:59,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576596021] [2024-12-01 13:14:59,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:14:59,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:14:59,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:14:59,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:14:59,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:14:59,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576596021] [2024-12-01 13:14:59,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576596021] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:14:59,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:14:59,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:14:59,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816870069] [2024-12-01 13:14:59,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:14:59,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:14:59,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:14:59,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:14:59,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:14:59,905 INFO L87 Difference]: Start difference. First operand 937 states and 1416 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) [2024-12-01 13:14:59,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:14:59,949 INFO L93 Difference]: Finished difference Result 2613 states and 4002 transitions. [2024-12-01 13:14:59,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:14:59,950 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 [2024-12-01 13:14:59,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:14:59,956 INFO L225 Difference]: With dead ends: 2613 [2024-12-01 13:14:59,956 INFO L226 Difference]: Without dead ends: 1743 [2024-12-01 13:14:59,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:14:59,958 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 84 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 353 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 [2024-12-01 13:14:59,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 353 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:14:59,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2024-12-01 13:15:00,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1741. [2024-12-01 13:15:00,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1741 states, 1740 states have (on average 1.5149425287356322) internal successors, (2636), 1740 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:00,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 2636 transitions. [2024-12-01 13:15:00,018 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 2636 transitions. Word has length 93 [2024-12-01 13:15:00,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:15:00,018 INFO L471 AbstractCegarLoop]: Abstraction has 1741 states and 2636 transitions. [2024-12-01 13:15:00,018 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) [2024-12-01 13:15:00,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 2636 transitions. [2024-12-01 13:15:00,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-01 13:15:00,019 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:00,019 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:00,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-01 13:15:00,020 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:00,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:00,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1167123145, now seen corresponding path program 1 times [2024-12-01 13:15:00,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:00,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41921680] [2024-12-01 13:15:00,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:00,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:00,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:00,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:15:00,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:00,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41921680] [2024-12-01 13:15:00,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41921680] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:00,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:15:00,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:15:00,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666657886] [2024-12-01 13:15:00,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:00,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:15:00,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:00,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:15:00,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:15:00,108 INFO L87 Difference]: Start difference. First operand 1741 states and 2636 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) [2024-12-01 13:15:00,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:15:00,184 INFO L93 Difference]: Finished difference Result 4961 states and 7550 transitions. [2024-12-01 13:15:00,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:15:00,184 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 [2024-12-01 13:15:00,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:15:00,195 INFO L225 Difference]: With dead ends: 4961 [2024-12-01 13:15:00,196 INFO L226 Difference]: Without dead ends: 3287 [2024-12-01 13:15:00,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:15:00,198 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 82 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 355 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 [2024-12-01 13:15:00,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 355 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:15:00,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2024-12-01 13:15:00,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 3285. [2024-12-01 13:15:00,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3285 states, 3284 states have (on average 1.5066991473812423) internal successors, (4948), 3284 states have internal predecessors, (4948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:00,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3285 states to 3285 states and 4948 transitions. [2024-12-01 13:15:00,308 INFO L78 Accepts]: Start accepts. Automaton has 3285 states and 4948 transitions. Word has length 93 [2024-12-01 13:15:00,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:15:00,308 INFO L471 AbstractCegarLoop]: Abstraction has 3285 states and 4948 transitions. [2024-12-01 13:15:00,308 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) [2024-12-01 13:15:00,308 INFO L276 IsEmpty]: Start isEmpty. Operand 3285 states and 4948 transitions. [2024-12-01 13:15:00,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-01 13:15:00,309 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:00,309 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:00,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-01 13:15:00,309 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:00,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:00,310 INFO L85 PathProgramCache]: Analyzing trace with hash -2144329929, now seen corresponding path program 1 times [2024-12-01 13:15:00,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:00,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971613649] [2024-12-01 13:15:00,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:00,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:00,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:15:00,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:00,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971613649] [2024-12-01 13:15:00,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971613649] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:00,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:15:00,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:15:00,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090424769] [2024-12-01 13:15:00,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:00,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:15:00,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:00,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:15:00,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:15:00,399 INFO L87 Difference]: Start difference. First operand 3285 states and 4948 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) [2024-12-01 13:15:00,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:15:00,522 INFO L93 Difference]: Finished difference Result 9465 states and 14262 transitions. [2024-12-01 13:15:00,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:15:00,522 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 [2024-12-01 13:15:00,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:15:00,543 INFO L225 Difference]: With dead ends: 9465 [2024-12-01 13:15:00,543 INFO L226 Difference]: Without dead ends: 6247 [2024-12-01 13:15:00,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:15:00,548 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 78 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 351 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 [2024-12-01 13:15:00,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 351 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:15:00,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6247 states. [2024-12-01 13:15:00,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6247 to 6245. [2024-12-01 13:15:00,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6245 states, 6244 states have (on average 1.4919923126201153) internal successors, (9316), 6244 states have internal predecessors, (9316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:00,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6245 states to 6245 states and 9316 transitions. [2024-12-01 13:15:00,779 INFO L78 Accepts]: Start accepts. Automaton has 6245 states and 9316 transitions. Word has length 93 [2024-12-01 13:15:00,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:15:00,780 INFO L471 AbstractCegarLoop]: Abstraction has 6245 states and 9316 transitions. [2024-12-01 13:15:00,780 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) [2024-12-01 13:15:00,780 INFO L276 IsEmpty]: Start isEmpty. Operand 6245 states and 9316 transitions. [2024-12-01 13:15:00,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-01 13:15:00,781 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:00,781 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:00,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-01 13:15:00,781 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:00,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:00,781 INFO L85 PathProgramCache]: Analyzing trace with hash -363397065, now seen corresponding path program 1 times [2024-12-01 13:15:00,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:00,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852574629] [2024-12-01 13:15:00,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:00,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:00,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:15:00,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:00,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852574629] [2024-12-01 13:15:00,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852574629] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:00,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:15:00,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:15:00,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444915668] [2024-12-01 13:15:00,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:00,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:15:00,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:00,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:15:00,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:15:00,871 INFO L87 Difference]: Start difference. First operand 6245 states and 9316 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) [2024-12-01 13:15:01,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:15:01,088 INFO L93 Difference]: Finished difference Result 18089 states and 26918 transitions. [2024-12-01 13:15:01,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:15:01,089 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 [2024-12-01 13:15:01,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:15:01,127 INFO L225 Difference]: With dead ends: 18089 [2024-12-01 13:15:01,127 INFO L226 Difference]: Without dead ends: 11911 [2024-12-01 13:15:01,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:15:01,135 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 76 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 353 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 [2024-12-01 13:15:01,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 353 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:15:01,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11911 states. [2024-12-01 13:15:01,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11911 to 11909. [2024-12-01 13:15:01,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11909 states, 11908 states have (on average 1.472959355055425) internal successors, (17540), 11908 states have internal predecessors, (17540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:01,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11909 states to 11909 states and 17540 transitions. [2024-12-01 13:15:01,545 INFO L78 Accepts]: Start accepts. Automaton has 11909 states and 17540 transitions. Word has length 93 [2024-12-01 13:15:01,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:15:01,546 INFO L471 AbstractCegarLoop]: Abstraction has 11909 states and 17540 transitions. [2024-12-01 13:15:01,546 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) [2024-12-01 13:15:01,546 INFO L276 IsEmpty]: Start isEmpty. Operand 11909 states and 17540 transitions. [2024-12-01 13:15:01,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-01 13:15:01,547 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:01,547 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:01,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-01 13:15:01,547 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:01,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:01,548 INFO L85 PathProgramCache]: Analyzing trace with hash 71138871, now seen corresponding path program 1 times [2024-12-01 13:15:01,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:01,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081069979] [2024-12-01 13:15:01,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:01,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:01,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:15:01,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:01,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081069979] [2024-12-01 13:15:01,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081069979] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:01,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:15:01,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:15:01,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182981690] [2024-12-01 13:15:01,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:01,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:15:01,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:01,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:15:01,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:15:01,626 INFO L87 Difference]: Start difference. First operand 11909 states and 17540 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) [2024-12-01 13:15:02,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:15:02,001 INFO L93 Difference]: Finished difference Result 34569 states and 50694 transitions. [2024-12-01 13:15:02,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:15:02,002 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 [2024-12-01 13:15:02,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:15:02,038 INFO L225 Difference]: With dead ends: 34569 [2024-12-01 13:15:02,038 INFO L226 Difference]: Without dead ends: 22727 [2024-12-01 13:15:02,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:15:02,047 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 80 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 357 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 [2024-12-01 13:15:02,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 357 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:15:02,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22727 states. [2024-12-01 13:15:02,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22727 to 22725. [2024-12-01 13:15:02,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22725 states, 22724 states have (on average 1.4506248899841576) internal successors, (32964), 22724 states have internal predecessors, (32964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:02,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22725 states to 22725 states and 32964 transitions. [2024-12-01 13:15:02,569 INFO L78 Accepts]: Start accepts. Automaton has 22725 states and 32964 transitions. Word has length 93 [2024-12-01 13:15:02,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:15:02,569 INFO L471 AbstractCegarLoop]: Abstraction has 22725 states and 32964 transitions. [2024-12-01 13:15:02,570 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) [2024-12-01 13:15:02,570 INFO L276 IsEmpty]: Start isEmpty. Operand 22725 states and 32964 transitions. [2024-12-01 13:15:02,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-01 13:15:02,571 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:02,571 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:02,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-01 13:15:02,571 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:02,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:02,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1748186322, now seen corresponding path program 1 times [2024-12-01 13:15:02,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:02,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667562690] [2024-12-01 13:15:02,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:02,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:02,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:15:02,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:02,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667562690] [2024-12-01 13:15:02,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667562690] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:02,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:15:02,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:15:02,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421948929] [2024-12-01 13:15:02,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:02,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:15:02,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:02,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:15:02,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:15:02,650 INFO L87 Difference]: Start difference. First operand 22725 states and 32964 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) [2024-12-01 13:15:03,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:15:03,020 INFO L93 Difference]: Finished difference Result 46284 states and 67530 transitions. [2024-12-01 13:15:03,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:15:03,020 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 [2024-12-01 13:15:03,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:15:03,093 INFO L225 Difference]: With dead ends: 46284 [2024-12-01 13:15:03,093 INFO L226 Difference]: Without dead ends: 33737 [2024-12-01 13:15:03,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:15:03,108 INFO L435 NwaCegarLoop]: 249 mSDtfsCounter, 87 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 350 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 [2024-12-01 13:15:03,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 350 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:15:03,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33737 states. [2024-12-01 13:15:03,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33737 to 33735. [2024-12-01 13:15:03,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33735 states, 33734 states have (on average 1.4439437955771626) internal successors, (48710), 33734 states have internal predecessors, (48710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:03,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33735 states to 33735 states and 48710 transitions. [2024-12-01 13:15:03,887 INFO L78 Accepts]: Start accepts. Automaton has 33735 states and 48710 transitions. Word has length 95 [2024-12-01 13:15:03,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:15:03,887 INFO L471 AbstractCegarLoop]: Abstraction has 33735 states and 48710 transitions. [2024-12-01 13:15:03,887 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) [2024-12-01 13:15:03,887 INFO L276 IsEmpty]: Start isEmpty. Operand 33735 states and 48710 transitions. [2024-12-01 13:15:03,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-01 13:15:03,891 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:03,891 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:03,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-01 13:15:03,892 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:03,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:03,892 INFO L85 PathProgramCache]: Analyzing trace with hash -467827745, now seen corresponding path program 1 times [2024-12-01 13:15:03,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:03,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655412069] [2024-12-01 13:15:03,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:03,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:04,118 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-01 13:15:04,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:04,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655412069] [2024-12-01 13:15:04,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655412069] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:04,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:15:04,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-01 13:15:04,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721942737] [2024-12-01 13:15:04,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:04,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:15:04,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:04,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:15:04,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:15:04,120 INFO L87 Difference]: Start difference. First operand 33735 states and 48710 transitions. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:07,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:15:07,435 INFO L93 Difference]: Finished difference Result 309849 states and 447311 transitions. [2024-12-01 13:15:07,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-01 13:15:07,435 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 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 118 [2024-12-01 13:15:07,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:15:07,923 INFO L225 Difference]: With dead ends: 309849 [2024-12-01 13:15:07,923 INFO L226 Difference]: Without dead ends: 276183 [2024-12-01 13:15:07,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:15:07,960 INFO L435 NwaCegarLoop]: 270 mSDtfsCounter, 1681 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1681 SdHoareTripleChecker+Valid, 2311 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 13:15:07,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1681 Valid, 2311 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 13:15:08,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276183 states. [2024-12-01 13:15:10,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276183 to 67399. [2024-12-01 13:15:10,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67399 states, 67398 states have (on average 1.4387073800409507) internal successors, (96966), 67398 states have internal predecessors, (96966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:10,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67399 states to 67399 states and 96966 transitions. [2024-12-01 13:15:10,628 INFO L78 Accepts]: Start accepts. Automaton has 67399 states and 96966 transitions. Word has length 118 [2024-12-01 13:15:10,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:15:10,628 INFO L471 AbstractCegarLoop]: Abstraction has 67399 states and 96966 transitions. [2024-12-01 13:15:10,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:10,628 INFO L276 IsEmpty]: Start isEmpty. Operand 67399 states and 96966 transitions. [2024-12-01 13:15:10,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-01 13:15:10,639 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:10,639 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:10,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-01 13:15:10,639 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:10,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:10,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1474241759, now seen corresponding path program 1 times [2024-12-01 13:15:10,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:10,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899382628] [2024-12-01 13:15:10,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:10,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:11,045 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-01 13:15:11,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:11,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899382628] [2024-12-01 13:15:11,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899382628] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:11,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:15:11,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-01 13:15:11,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471436726] [2024-12-01 13:15:11,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:11,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:15:11,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:11,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:15:11,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:15:11,047 INFO L87 Difference]: Start difference. First operand 67399 states and 96966 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:14,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:15:14,847 INFO L93 Difference]: Finished difference Result 343513 states and 495567 transitions. [2024-12-01 13:15:14,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-01 13:15:14,848 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 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 118 [2024-12-01 13:15:14,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:15:15,151 INFO L225 Difference]: With dead ends: 343513 [2024-12-01 13:15:15,151 INFO L226 Difference]: Without dead ends: 309847 [2024-12-01 13:15:15,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:15:15,205 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 1706 mSDsluCounter, 1877 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 2144 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 13:15:15,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1706 Valid, 2144 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 13:15:15,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309847 states. [2024-12-01 13:15:19,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309847 to 117959. [2024-12-01 13:15:19,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117959 states, 117958 states have (on average 1.4329676664575526) internal successors, (169030), 117958 states have internal predecessors, (169030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:19,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117959 states to 117959 states and 169030 transitions. [2024-12-01 13:15:19,536 INFO L78 Accepts]: Start accepts. Automaton has 117959 states and 169030 transitions. Word has length 118 [2024-12-01 13:15:19,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:15:19,537 INFO L471 AbstractCegarLoop]: Abstraction has 117959 states and 169030 transitions. [2024-12-01 13:15:19,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:19,537 INFO L276 IsEmpty]: Start isEmpty. Operand 117959 states and 169030 transitions. [2024-12-01 13:15:19,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-01 13:15:19,545 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:19,545 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:19,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-01 13:15:19,546 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:19,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:19,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1637156319, now seen corresponding path program 1 times [2024-12-01 13:15:19,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:19,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089777294] [2024-12-01 13:15:19,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:19,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:19,846 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-01 13:15:19,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:19,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089777294] [2024-12-01 13:15:19,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089777294] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:19,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:15:19,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-01 13:15:19,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756728461] [2024-12-01 13:15:19,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:19,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:15:19,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:19,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:15:19,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:15:19,848 INFO L87 Difference]: Start difference. First operand 117959 states and 169030 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:25,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:15:25,123 INFO L93 Difference]: Finished difference Result 377177 states and 543823 transitions. [2024-12-01 13:15:25,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-01 13:15:25,123 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 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 118 [2024-12-01 13:15:25,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:15:25,439 INFO L225 Difference]: With dead ends: 377177 [2024-12-01 13:15:25,439 INFO L226 Difference]: Without dead ends: 343511 [2024-12-01 13:15:25,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:15:25,490 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 1747 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 2041 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 13:15:25,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1747 Valid, 2041 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 13:15:25,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343511 states. [2024-12-01 13:15:30,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343511 to 151623. [2024-12-01 13:15:30,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151623 states, 151622 states have (on average 1.433076994103758) internal successors, (217286), 151622 states have internal predecessors, (217286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:30,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151623 states to 151623 states and 217286 transitions. [2024-12-01 13:15:30,422 INFO L78 Accepts]: Start accepts. Automaton has 151623 states and 217286 transitions. Word has length 118 [2024-12-01 13:15:30,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:15:30,423 INFO L471 AbstractCegarLoop]: Abstraction has 151623 states and 217286 transitions. [2024-12-01 13:15:30,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:30,423 INFO L276 IsEmpty]: Start isEmpty. Operand 151623 states and 217286 transitions. [2024-12-01 13:15:30,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-01 13:15:30,427 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:30,427 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:30,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-01 13:15:30,427 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:30,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:30,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1901012703, now seen corresponding path program 1 times [2024-12-01 13:15:30,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:30,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703853457] [2024-12-01 13:15:30,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:30,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:30,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:30,623 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-01 13:15:30,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:30,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703853457] [2024-12-01 13:15:30,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703853457] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:30,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:15:30,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-01 13:15:30,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692630530] [2024-12-01 13:15:30,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:30,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:15:30,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:30,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:15:30,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:15:30,625 INFO L87 Difference]: Start difference. First operand 151623 states and 217286 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:36,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:15:36,843 INFO L93 Difference]: Finished difference Result 410841 states and 592079 transitions. [2024-12-01 13:15:36,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-01 13:15:36,843 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 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 118 [2024-12-01 13:15:36,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:15:37,200 INFO L225 Difference]: With dead ends: 410841 [2024-12-01 13:15:37,200 INFO L226 Difference]: Without dead ends: 377175 [2024-12-01 13:15:37,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:15:37,258 INFO L435 NwaCegarLoop]: 261 mSDtfsCounter, 1901 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1901 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 13:15:37,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1901 Valid, 1969 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 13:15:37,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377175 states. [2024-12-01 13:15:43,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377175 to 185287. [2024-12-01 13:15:43,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185287 states, 185286 states have (on average 1.4331465949936855) internal successors, (265542), 185286 states have internal predecessors, (265542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:43,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185287 states to 185287 states and 265542 transitions. [2024-12-01 13:15:43,663 INFO L78 Accepts]: Start accepts. Automaton has 185287 states and 265542 transitions. Word has length 118 [2024-12-01 13:15:43,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:15:43,664 INFO L471 AbstractCegarLoop]: Abstraction has 185287 states and 265542 transitions. [2024-12-01 13:15:43,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:43,664 INFO L276 IsEmpty]: Start isEmpty. Operand 185287 states and 265542 transitions. [2024-12-01 13:15:43,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-01 13:15:43,671 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:43,672 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:43,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-01 13:15:43,672 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:43,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:43,672 INFO L85 PathProgramCache]: Analyzing trace with hash 923805919, now seen corresponding path program 1 times [2024-12-01 13:15:43,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:43,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988621620] [2024-12-01 13:15:43,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:43,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:43,939 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-01 13:15:43,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:43,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988621620] [2024-12-01 13:15:43,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988621620] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:43,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:15:43,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-01 13:15:43,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086311926] [2024-12-01 13:15:43,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:43,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:15:43,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:43,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:15:43,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:15:43,941 INFO L87 Difference]: Start difference. First operand 185287 states and 265542 transitions. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:51,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:15:51,476 INFO L93 Difference]: Finished difference Result 444505 states and 640335 transitions. [2024-12-01 13:15:51,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-01 13:15:51,477 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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 118 [2024-12-01 13:15:51,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:15:51,886 INFO L225 Difference]: With dead ends: 444505 [2024-12-01 13:15:51,886 INFO L226 Difference]: Without dead ends: 410839 [2024-12-01 13:15:51,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:15:51,949 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 2010 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2010 SdHoareTripleChecker+Valid, 2032 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 13:15:51,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2010 Valid, 2032 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 13:15:52,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410839 states. [2024-12-01 13:15:58,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410839 to 218951. [2024-12-01 13:15:58,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218951 states, 218950 states have (on average 1.433194793331811) internal successors, (313798), 218950 states have internal predecessors, (313798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:58,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218951 states to 218951 states and 313798 transitions. [2024-12-01 13:15:58,832 INFO L78 Accepts]: Start accepts. Automaton has 218951 states and 313798 transitions. Word has length 118 [2024-12-01 13:15:58,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:15:58,832 INFO L471 AbstractCegarLoop]: Abstraction has 218951 states and 313798 transitions. [2024-12-01 13:15:58,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:15:58,833 INFO L276 IsEmpty]: Start isEmpty. Operand 218951 states and 313798 transitions. [2024-12-01 13:15:58,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-01 13:15:58,837 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:15:58,838 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:15:58,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-01 13:15:58,838 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:15:58,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:15:58,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1590228513, now seen corresponding path program 1 times [2024-12-01 13:15:58,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:15:58,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436447161] [2024-12-01 13:15:58,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:15:58,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:15:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:15:59,016 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-01 13:15:59,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:15:59,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436447161] [2024-12-01 13:15:59,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436447161] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:15:59,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:15:59,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-01 13:15:59,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128071758] [2024-12-01 13:15:59,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:15:59,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:15:59,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:15:59,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:15:59,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:15:59,017 INFO L87 Difference]: Start difference. First operand 218951 states and 313798 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:08,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:16:08,926 INFO L93 Difference]: Finished difference Result 478169 states and 688591 transitions. [2024-12-01 13:16:08,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-01 13:16:08,926 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 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 118 [2024-12-01 13:16:08,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:16:09,447 INFO L225 Difference]: With dead ends: 478169 [2024-12-01 13:16:09,447 INFO L226 Difference]: Without dead ends: 444503 [2024-12-01 13:16:09,520 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:16:09,521 INFO L435 NwaCegarLoop]: 259 mSDtfsCounter, 1801 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1801 SdHoareTripleChecker+Valid, 2103 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 13:16:09,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1801 Valid, 2103 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 13:16:09,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444503 states. [2024-12-01 13:16:16,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444503 to 252615. [2024-12-01 13:16:16,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252615 states, 252614 states have (on average 1.433230145597631) internal successors, (362054), 252614 states have internal predecessors, (362054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:17,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252615 states to 252615 states and 362054 transitions. [2024-12-01 13:16:17,227 INFO L78 Accepts]: Start accepts. Automaton has 252615 states and 362054 transitions. Word has length 118 [2024-12-01 13:16:17,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:16:17,227 INFO L471 AbstractCegarLoop]: Abstraction has 252615 states and 362054 transitions. [2024-12-01 13:16:17,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:17,227 INFO L276 IsEmpty]: Start isEmpty. Operand 252615 states and 362054 transitions. [2024-12-01 13:16:17,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-01 13:16:17,236 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:16:17,236 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:16:17,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-01 13:16:17,236 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:16:17,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:16:17,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1155692577, now seen corresponding path program 1 times [2024-12-01 13:16:17,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:16:17,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140210577] [2024-12-01 13:16:17,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:16:17,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:16:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:16:17,468 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-01 13:16:17,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:16:17,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140210577] [2024-12-01 13:16:17,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140210577] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:16:17,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:16:17,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-01 13:16:17,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923486744] [2024-12-01 13:16:17,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:16:17,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:16:17,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:16:17,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:16:17,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:16:17,470 INFO L87 Difference]: Start difference. First operand 252615 states and 362054 transitions. Second operand has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:27,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:16:27,114 INFO L93 Difference]: Finished difference Result 511833 states and 736847 transitions. [2024-12-01 13:16:27,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-01 13:16:27,115 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 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 118 [2024-12-01 13:16:27,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:16:27,590 INFO L225 Difference]: With dead ends: 511833 [2024-12-01 13:16:27,590 INFO L226 Difference]: Without dead ends: 478167 [2024-12-01 13:16:27,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:16:27,660 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 1610 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1610 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 13:16:27,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1610 Valid, 2411 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 13:16:27,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478167 states. [2024-12-01 13:16:36,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478167 to 286279. [2024-12-01 13:16:36,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286279 states, 286278 states have (on average 1.4332571835768029) internal successors, (410310), 286278 states have internal predecessors, (410310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:36,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286279 states to 286279 states and 410310 transitions. [2024-12-01 13:16:37,011 INFO L78 Accepts]: Start accepts. Automaton has 286279 states and 410310 transitions. Word has length 118 [2024-12-01 13:16:37,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:16:37,012 INFO L471 AbstractCegarLoop]: Abstraction has 286279 states and 410310 transitions. [2024-12-01 13:16:37,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:37,012 INFO L276 IsEmpty]: Start isEmpty. Operand 286279 states and 410310 transitions. [2024-12-01 13:16:37,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-01 13:16:37,025 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:16:37,026 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:16:37,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-01 13:16:37,026 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:16:37,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:16:37,027 INFO L85 PathProgramCache]: Analyzing trace with hash 39908247, now seen corresponding path program 1 times [2024-12-01 13:16:37,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:16:37,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867988587] [2024-12-01 13:16:37,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:16:37,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:16:37,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:16:37,232 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:16:37,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:16:37,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867988587] [2024-12-01 13:16:37,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867988587] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:16:37,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:16:37,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:16:37,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420464399] [2024-12-01 13:16:37,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:16:37,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:16:37,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:16:37,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:16:37,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:16:37,234 INFO L87 Difference]: Start difference. First operand 286279 states and 410310 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:42,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:16:42,959 INFO L93 Difference]: Finished difference Result 486501 states and 699747 transitions. [2024-12-01 13:16:42,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:16:42,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 120 [2024-12-01 13:16:42,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:16:43,183 INFO L225 Difference]: With dead ends: 486501 [2024-12-01 13:16:43,183 INFO L226 Difference]: Without dead ends: 200291 [2024-12-01 13:16:43,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:16:43,279 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 74 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 383 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 [2024-12-01 13:16:43,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 383 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:16:43,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200291 states. [2024-12-01 13:16:49,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200291 to 200289. [2024-12-01 13:16:49,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200289 states, 200288 states have (on average 1.4345742131330883) internal successors, (287328), 200288 states have internal predecessors, (287328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:49,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200289 states to 200289 states and 287328 transitions. [2024-12-01 13:16:49,824 INFO L78 Accepts]: Start accepts. Automaton has 200289 states and 287328 transitions. Word has length 120 [2024-12-01 13:16:49,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:16:49,825 INFO L471 AbstractCegarLoop]: Abstraction has 200289 states and 287328 transitions. [2024-12-01 13:16:49,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:49,825 INFO L276 IsEmpty]: Start isEmpty. Operand 200289 states and 287328 transitions. [2024-12-01 13:16:49,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-01 13:16:49,828 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:16:49,828 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:16:49,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-01 13:16:49,828 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:16:49,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:16:49,829 INFO L85 PathProgramCache]: Analyzing trace with hash -415796102, now seen corresponding path program 1 times [2024-12-01 13:16:49,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:16:49,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902150196] [2024-12-01 13:16:49,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:16:49,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:16:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:16:50,019 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-01 13:16:50,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:16:50,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902150196] [2024-12-01 13:16:50,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902150196] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:16:50,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:16:50,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-01 13:16:50,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760157287] [2024-12-01 13:16:50,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:16:50,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:16:50,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:16:50,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:16:50,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:16:50,020 INFO L87 Difference]: Start difference. First operand 200289 states and 287328 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:59,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:16:59,019 INFO L93 Difference]: Finished difference Result 388723 states and 559721 transitions. [2024-12-01 13:16:59,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-01 13:16:59,020 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 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 120 [2024-12-01 13:16:59,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:16:59,447 INFO L225 Difference]: With dead ends: 388723 [2024-12-01 13:16:59,447 INFO L226 Difference]: Without dead ends: 365169 [2024-12-01 13:16:59,516 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:16:59,516 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 1691 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1691 SdHoareTripleChecker+Valid, 2672 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 13:16:59,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1691 Valid, 2672 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 13:16:59,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365169 states. [2024-12-01 13:17:06,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365169 to 223841. [2024-12-01 13:17:06,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223841 states, 223840 states have (on average 1.4345961401000715) internal successors, (321120), 223840 states have internal predecessors, (321120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:06,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223841 states to 223841 states and 321120 transitions. [2024-12-01 13:17:06,640 INFO L78 Accepts]: Start accepts. Automaton has 223841 states and 321120 transitions. Word has length 120 [2024-12-01 13:17:06,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:17:06,640 INFO L471 AbstractCegarLoop]: Abstraction has 223841 states and 321120 transitions. [2024-12-01 13:17:06,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:06,640 INFO L276 IsEmpty]: Start isEmpty. Operand 223841 states and 321120 transitions. [2024-12-01 13:17:06,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-01 13:17:06,644 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:06,644 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:06,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-01 13:17:06,644 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:06,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:06,645 INFO L85 PathProgramCache]: Analyzing trace with hash 714602422, now seen corresponding path program 1 times [2024-12-01 13:17:06,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:06,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106956061] [2024-12-01 13:17:06,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:06,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:06,726 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:17:06,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:06,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106956061] [2024-12-01 13:17:06,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106956061] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:17:06,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:17:06,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:17:06,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255869390] [2024-12-01 13:17:06,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:06,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:17:06,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:06,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:17:06,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:17:06,728 INFO L87 Difference]: Start difference. First operand 223841 states and 321120 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:09,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:17:09,884 INFO L93 Difference]: Finished difference Result 335717 states and 481634 transitions. [2024-12-01 13:17:09,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:17:09,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 121 [2024-12-01 13:17:09,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:17:09,974 INFO L225 Difference]: With dead ends: 335717 [2024-12-01 13:17:09,974 INFO L226 Difference]: Without dead ends: 111971 [2024-12-01 13:17:10,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:17:10,045 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 69 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 368 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 [2024-12-01 13:17:10,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 368 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:17:10,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111971 states. [2024-12-01 13:17:13,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111971 to 111969. [2024-12-01 13:17:13,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111969 states, 111968 states have (on average 1.4235495855958846) internal successors, (159392), 111968 states have internal predecessors, (159392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:13,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111969 states to 111969 states and 159392 transitions. [2024-12-01 13:17:13,223 INFO L78 Accepts]: Start accepts. Automaton has 111969 states and 159392 transitions. Word has length 121 [2024-12-01 13:17:13,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:17:13,224 INFO L471 AbstractCegarLoop]: Abstraction has 111969 states and 159392 transitions. [2024-12-01 13:17:13,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:13,224 INFO L276 IsEmpty]: Start isEmpty. Operand 111969 states and 159392 transitions. [2024-12-01 13:17:13,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-01 13:17:13,226 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:13,226 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:13,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-01 13:17:13,227 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:13,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:13,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1007497768, now seen corresponding path program 1 times [2024-12-01 13:17:13,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:13,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995751596] [2024-12-01 13:17:13,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:13,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:13,302 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:17:13,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:13,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995751596] [2024-12-01 13:17:13,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995751596] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:17:13,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:17:13,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:17:13,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36169118] [2024-12-01 13:17:13,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:13,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:17:13,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:13,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:17:13,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:17:13,304 INFO L87 Difference]: Start difference. First operand 111969 states and 159392 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:14,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:17:14,567 INFO L93 Difference]: Finished difference Result 167909 states and 239042 transitions. [2024-12-01 13:17:14,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:17:14,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 123 [2024-12-01 13:17:14,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:17:14,613 INFO L225 Difference]: With dead ends: 167909 [2024-12-01 13:17:14,613 INFO L226 Difference]: Without dead ends: 56035 [2024-12-01 13:17:14,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:17:14,655 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 66 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 353 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 [2024-12-01 13:17:14,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 353 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:17:14,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56035 states. [2024-12-01 13:17:16,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56035 to 56033. [2024-12-01 13:17:16,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56033 states, 56032 states have (on average 1.4123358081096515) internal successors, (79136), 56032 states have internal predecessors, (79136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:16,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56033 states to 56033 states and 79136 transitions. [2024-12-01 13:17:16,602 INFO L78 Accepts]: Start accepts. Automaton has 56033 states and 79136 transitions. Word has length 123 [2024-12-01 13:17:16,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:17:16,602 INFO L471 AbstractCegarLoop]: Abstraction has 56033 states and 79136 transitions. [2024-12-01 13:17:16,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:16,602 INFO L276 IsEmpty]: Start isEmpty. Operand 56033 states and 79136 transitions. [2024-12-01 13:17:16,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-01 13:17:16,604 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:16,604 INFO L218 NwaCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:16,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-01 13:17:16,604 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:16,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:16,605 INFO L85 PathProgramCache]: Analyzing trace with hash -790867174, now seen corresponding path program 1 times [2024-12-01 13:17:16,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:16,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671712273] [2024-12-01 13:17:16,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:16,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:16,695 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:17:16,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:16,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671712273] [2024-12-01 13:17:16,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671712273] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:17:16,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:17:16,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:17:16,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374357055] [2024-12-01 13:17:16,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:16,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:17:16,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:16,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:17:16,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:17:16,697 INFO L87 Difference]: Start difference. First operand 56033 states and 79136 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:17,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:17:17,620 INFO L93 Difference]: Finished difference Result 84005 states and 118658 transitions. [2024-12-01 13:17:17,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:17:17,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 125 [2024-12-01 13:17:17,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:17:17,655 INFO L225 Difference]: With dead ends: 84005 [2024-12-01 13:17:17,655 INFO L226 Difference]: Without dead ends: 28067 [2024-12-01 13:17:17,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:17:17,682 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 63 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 338 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 [2024-12-01 13:17:17,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 338 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:17:17,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28067 states. [2024-12-01 13:17:18,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28067 to 28065. [2024-12-01 13:17:18,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28065 states, 28064 states have (on average 1.4007981755986316) internal successors, (39312), 28064 states have internal predecessors, (39312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:18,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28065 states to 28065 states and 39312 transitions. [2024-12-01 13:17:18,454 INFO L78 Accepts]: Start accepts. Automaton has 28065 states and 39312 transitions. Word has length 125 [2024-12-01 13:17:18,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:17:18,454 INFO L471 AbstractCegarLoop]: Abstraction has 28065 states and 39312 transitions. [2024-12-01 13:17:18,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:18,454 INFO L276 IsEmpty]: Start isEmpty. Operand 28065 states and 39312 transitions. [2024-12-01 13:17:18,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-01 13:17:18,455 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:18,456 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:18,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-01 13:17:18,456 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:18,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:18,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1083734668, now seen corresponding path program 1 times [2024-12-01 13:17:18,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:18,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846225481] [2024-12-01 13:17:18,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:18,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:18,531 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:17:18,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:18,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846225481] [2024-12-01 13:17:18,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846225481] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:17:18,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:17:18,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:17:18,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541352740] [2024-12-01 13:17:18,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:18,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:17:18,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:18,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:17:18,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:17:18,533 INFO L87 Difference]: Start difference. First operand 28065 states and 39312 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:18,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:17:18,941 INFO L93 Difference]: Finished difference Result 42053 states and 58922 transitions. [2024-12-01 13:17:18,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:17:18,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 127 [2024-12-01 13:17:18,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:17:18,954 INFO L225 Difference]: With dead ends: 42053 [2024-12-01 13:17:18,954 INFO L226 Difference]: Without dead ends: 14083 [2024-12-01 13:17:18,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:17:18,960 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 60 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 323 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 [2024-12-01 13:17:18,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 323 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:17:18,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14083 states. [2024-12-01 13:17:19,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14083 to 14081. [2024-12-01 13:17:19,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14081 states, 14080 states have (on average 1.3886363636363637) internal successors, (19552), 14080 states have internal predecessors, (19552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:19,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14081 states to 14081 states and 19552 transitions. [2024-12-01 13:17:19,392 INFO L78 Accepts]: Start accepts. Automaton has 14081 states and 19552 transitions. Word has length 127 [2024-12-01 13:17:19,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:17:19,392 INFO L471 AbstractCegarLoop]: Abstraction has 14081 states and 19552 transitions. [2024-12-01 13:17:19,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:19,393 INFO L276 IsEmpty]: Start isEmpty. Operand 14081 states and 19552 transitions. [2024-12-01 13:17:19,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-01 13:17:19,394 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:19,394 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:19,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-01 13:17:19,394 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:19,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:19,394 INFO L85 PathProgramCache]: Analyzing trace with hash -935540610, now seen corresponding path program 1 times [2024-12-01 13:17:19,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:19,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658385437] [2024-12-01 13:17:19,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:19,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:19,504 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:17:19,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:19,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658385437] [2024-12-01 13:17:19,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658385437] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:17:19,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:17:19,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:17:19,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631838331] [2024-12-01 13:17:19,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:19,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:17:19,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:19,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:17:19,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:17:19,505 INFO L87 Difference]: Start difference. First operand 14081 states and 19552 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:19,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:17:19,675 INFO L93 Difference]: Finished difference Result 21077 states and 29282 transitions. [2024-12-01 13:17:19,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:17:19,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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 129 [2024-12-01 13:17:19,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:17:19,684 INFO L225 Difference]: With dead ends: 21077 [2024-12-01 13:17:19,684 INFO L226 Difference]: Without dead ends: 7091 [2024-12-01 13:17:19,689 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:17:19,690 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 57 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 308 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 [2024-12-01 13:17:19,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 308 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:17:19,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7091 states. [2024-12-01 13:17:19,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7091 to 7089. [2024-12-01 13:17:19,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7089 states, 7088 states have (on average 1.3752821670428894) internal successors, (9748), 7088 states have internal predecessors, (9748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:19,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7089 states to 7089 states and 9748 transitions. [2024-12-01 13:17:19,861 INFO L78 Accepts]: Start accepts. Automaton has 7089 states and 9748 transitions. Word has length 129 [2024-12-01 13:17:19,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:17:19,861 INFO L471 AbstractCegarLoop]: Abstraction has 7089 states and 9748 transitions. [2024-12-01 13:17:19,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:19,861 INFO L276 IsEmpty]: Start isEmpty. Operand 7089 states and 9748 transitions. [2024-12-01 13:17:19,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-01 13:17:19,862 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:19,862 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:19,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-01 13:17:19,862 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:19,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:19,862 INFO L85 PathProgramCache]: Analyzing trace with hash 2083282160, now seen corresponding path program 1 times [2024-12-01 13:17:19,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:19,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998602211] [2024-12-01 13:17:19,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:19,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:19,933 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:17:19,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:19,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998602211] [2024-12-01 13:17:19,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998602211] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:17:19,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:17:19,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:17:19,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063419166] [2024-12-01 13:17:19,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:19,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:17:19,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:19,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:17:19,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:17:19,935 INFO L87 Difference]: Start difference. First operand 7089 states and 9748 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:20,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:17:20,021 INFO L93 Difference]: Finished difference Result 10589 states and 14576 transitions. [2024-12-01 13:17:20,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:17:20,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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 131 [2024-12-01 13:17:20,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:17:20,029 INFO L225 Difference]: With dead ends: 10589 [2024-12-01 13:17:20,029 INFO L226 Difference]: Without dead ends: 3595 [2024-12-01 13:17:20,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:17:20,031 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 54 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 293 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 [2024-12-01 13:17:20,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 293 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:17:20,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3595 states. [2024-12-01 13:17:20,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3595 to 3593. [2024-12-01 13:17:20,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3593 states, 3592 states have (on average 1.3596881959910914) internal successors, (4884), 3592 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:20,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3593 states to 3593 states and 4884 transitions. [2024-12-01 13:17:20,119 INFO L78 Accepts]: Start accepts. Automaton has 3593 states and 4884 transitions. Word has length 131 [2024-12-01 13:17:20,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:17:20,119 INFO L471 AbstractCegarLoop]: Abstraction has 3593 states and 4884 transitions. [2024-12-01 13:17:20,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:20,120 INFO L276 IsEmpty]: Start isEmpty. Operand 3593 states and 4884 transitions. [2024-12-01 13:17:20,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-01 13:17:20,120 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:20,120 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:20,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-01 13:17:20,121 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:20,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:20,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1171105822, now seen corresponding path program 1 times [2024-12-01 13:17:20,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:20,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91505613] [2024-12-01 13:17:20,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:20,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:20,192 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:17:20,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:20,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91505613] [2024-12-01 13:17:20,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91505613] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:17:20,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:17:20,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:17:20,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734846737] [2024-12-01 13:17:20,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:20,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:17:20,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:20,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:17:20,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:17:20,193 INFO L87 Difference]: Start difference. First operand 3593 states and 4884 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:20,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:17:20,240 INFO L93 Difference]: Finished difference Result 5345 states and 7280 transitions. [2024-12-01 13:17:20,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:17:20,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 133 [2024-12-01 13:17:20,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:17:20,247 INFO L225 Difference]: With dead ends: 5345 [2024-12-01 13:17:20,247 INFO L226 Difference]: Without dead ends: 1847 [2024-12-01 13:17:20,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:17:20,248 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 51 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 278 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 [2024-12-01 13:17:20,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 278 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 13:17:20,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2024-12-01 13:17:20,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1845. [2024-12-01 13:17:20,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1845 states, 1844 states have (on average 1.3400216919739696) internal successors, (2471), 1844 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:20,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1845 states to 1845 states and 2471 transitions. [2024-12-01 13:17:20,294 INFO L78 Accepts]: Start accepts. Automaton has 1845 states and 2471 transitions. Word has length 133 [2024-12-01 13:17:20,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:17:20,294 INFO L471 AbstractCegarLoop]: Abstraction has 1845 states and 2471 transitions. [2024-12-01 13:17:20,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:20,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1845 states and 2471 transitions. [2024-12-01 13:17:20,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-01 13:17:20,295 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:20,295 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:20,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-01 13:17:20,295 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:20,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:20,296 INFO L85 PathProgramCache]: Analyzing trace with hash 461494612, now seen corresponding path program 1 times [2024-12-01 13:17:20,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:20,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534723390] [2024-12-01 13:17:20,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:20,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:21,192 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:17:21,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:21,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534723390] [2024-12-01 13:17:21,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534723390] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:17:21,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485836248] [2024-12-01 13:17:21,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:21,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:17:21,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:17:21,195 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:17:21,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-01 13:17:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:21,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-01 13:17:21,408 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:17:21,701 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-01 13:17:21,701 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:17:22,009 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-01 13:17:22,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485836248] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 13:17:22,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 13:17:22,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 4] total 19 [2024-12-01 13:17:22,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138386208] [2024-12-01 13:17:22,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 13:17:22,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-01 13:17:22,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:22,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-01 13:17:22,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-12-01 13:17:22,011 INFO L87 Difference]: Start difference. First operand 1845 states and 2471 transitions. Second operand has 19 states, 19 states have (on average 20.473684210526315) internal successors, (389), 19 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:24,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:17:24,616 INFO L93 Difference]: Finished difference Result 13548 states and 18142 transitions. [2024-12-01 13:17:24,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-12-01 13:17:24,617 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 20.473684210526315) internal successors, (389), 19 states have internal predecessors, (389), 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 135 [2024-12-01 13:17:24,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:17:24,630 INFO L225 Difference]: With dead ends: 13548 [2024-12-01 13:17:24,630 INFO L226 Difference]: Without dead ends: 11798 [2024-12-01 13:17:24,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1065 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=681, Invalid=3101, Unknown=0, NotChecked=0, Total=3782 [2024-12-01 13:17:24,633 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 3063 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 1467 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3063 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-01 13:17:24,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3063 Valid, 1556 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1467 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-01 13:17:24,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11798 states. [2024-12-01 13:17:25,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11798 to 11738. [2024-12-01 13:17:25,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11738 states, 11737 states have (on average 1.2969242566243504) internal successors, (15222), 11737 states have internal predecessors, (15222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:25,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11738 states to 11738 states and 15222 transitions. [2024-12-01 13:17:25,161 INFO L78 Accepts]: Start accepts. Automaton has 11738 states and 15222 transitions. Word has length 135 [2024-12-01 13:17:25,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:17:25,161 INFO L471 AbstractCegarLoop]: Abstraction has 11738 states and 15222 transitions. [2024-12-01 13:17:25,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 20.473684210526315) internal successors, (389), 19 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:25,162 INFO L276 IsEmpty]: Start isEmpty. Operand 11738 states and 15222 transitions. [2024-12-01 13:17:25,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-01 13:17:25,163 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:25,163 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:25,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-01 13:17:25,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-12-01 13:17:25,364 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:25,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:25,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1828171014, now seen corresponding path program 1 times [2024-12-01 13:17:25,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:25,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211880547] [2024-12-01 13:17:25,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:25,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:27,111 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:17:27,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:27,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211880547] [2024-12-01 13:17:27,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211880547] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:17:27,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941961658] [2024-12-01 13:17:27,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:27,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:17:27,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:17:27,113 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:17:27,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-01 13:17:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:27,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-01 13:17:27,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:17:28,234 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:17:28,234 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:17:29,810 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:17:29,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941961658] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 13:17:29,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 13:17:29,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 13] total 35 [2024-12-01 13:17:29,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122422138] [2024-12-01 13:17:29,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 13:17:29,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-12-01 13:17:29,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:29,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-12-01 13:17:29,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1016, Unknown=0, NotChecked=0, Total=1190 [2024-12-01 13:17:29,813 INFO L87 Difference]: Start difference. First operand 11738 states and 15222 transitions. Second operand has 35 states, 35 states have (on average 10.0) internal successors, (350), 35 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:33,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:17:33,113 INFO L93 Difference]: Finished difference Result 35844 states and 46708 transitions. [2024-12-01 13:17:33,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-12-01 13:17:33,114 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 10.0) internal successors, (350), 35 states have internal predecessors, (350), 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 136 [2024-12-01 13:17:33,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:17:33,138 INFO L225 Difference]: With dead ends: 35844 [2024-12-01 13:17:33,138 INFO L226 Difference]: Without dead ends: 24497 [2024-12-01 13:17:33,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1304 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1077, Invalid=4325, Unknown=0, NotChecked=0, Total=5402 [2024-12-01 13:17:33,149 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 3256 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3256 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-01 13:17:33,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3256 Valid, 1322 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-01 13:17:33,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24497 states. [2024-12-01 13:17:33,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24497 to 23813. [2024-12-01 13:17:33,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23813 states, 23812 states have (on average 1.29035780278851) internal successors, (30726), 23812 states have internal predecessors, (30726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:33,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23813 states to 23813 states and 30726 transitions. [2024-12-01 13:17:34,005 INFO L78 Accepts]: Start accepts. Automaton has 23813 states and 30726 transitions. Word has length 136 [2024-12-01 13:17:34,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:17:34,005 INFO L471 AbstractCegarLoop]: Abstraction has 23813 states and 30726 transitions. [2024-12-01 13:17:34,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 10.0) internal successors, (350), 35 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:34,006 INFO L276 IsEmpty]: Start isEmpty. Operand 23813 states and 30726 transitions. [2024-12-01 13:17:34,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-01 13:17:34,007 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:34,007 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:34,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-01 13:17:34,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-12-01 13:17:34,208 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:34,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:34,208 INFO L85 PathProgramCache]: Analyzing trace with hash 189292806, now seen corresponding path program 1 times [2024-12-01 13:17:34,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:34,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653827209] [2024-12-01 13:17:34,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:34,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:34,677 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:17:34,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:34,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653827209] [2024-12-01 13:17:34,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653827209] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:17:34,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300602369] [2024-12-01 13:17:34,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:34,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:17:34,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:17:34,679 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:17:34,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-01 13:17:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:34,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-01 13:17:34,903 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:17:35,466 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:17:35,466 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:17:36,679 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:17:36,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300602369] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 13:17:36,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 13:17:36,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-12-01 13:17:36,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157590687] [2024-12-01 13:17:36,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 13:17:36,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-01 13:17:36,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:36,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-01 13:17:36,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2024-12-01 13:17:36,680 INFO L87 Difference]: Start difference. First operand 23813 states and 30726 transitions. Second operand has 26 states, 26 states have (on average 13.923076923076923) internal successors, (362), 25 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:39,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:17:39,910 INFO L93 Difference]: Finished difference Result 72529 states and 93879 transitions. [2024-12-01 13:17:39,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-12-01 13:17:39,910 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.923076923076923) internal successors, (362), 25 states have internal predecessors, (362), 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 136 [2024-12-01 13:17:39,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:17:39,956 INFO L225 Difference]: With dead ends: 72529 [2024-12-01 13:17:39,956 INFO L226 Difference]: Without dead ends: 49187 [2024-12-01 13:17:39,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=712, Invalid=2480, Unknown=0, NotChecked=0, Total=3192 [2024-12-01 13:17:39,975 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 2002 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 1518 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2002 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 1546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-01 13:17:39,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2002 Valid, 1957 Invalid, 1546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1518 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-01 13:17:40,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49187 states. [2024-12-01 13:17:41,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49187 to 47187. [2024-12-01 13:17:41,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47187 states, 47186 states have (on average 1.2723689229856314) internal successors, (60038), 47186 states have internal predecessors, (60038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:41,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47187 states to 47187 states and 60038 transitions. [2024-12-01 13:17:41,842 INFO L78 Accepts]: Start accepts. Automaton has 47187 states and 60038 transitions. Word has length 136 [2024-12-01 13:17:41,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:17:41,843 INFO L471 AbstractCegarLoop]: Abstraction has 47187 states and 60038 transitions. [2024-12-01 13:17:41,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.923076923076923) internal successors, (362), 25 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:41,843 INFO L276 IsEmpty]: Start isEmpty. Operand 47187 states and 60038 transitions. [2024-12-01 13:17:41,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-01 13:17:41,845 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:17:41,845 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:41,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-01 13:17:42,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-12-01 13:17:42,045 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:17:42,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:42,046 INFO L85 PathProgramCache]: Analyzing trace with hash -719927978, now seen corresponding path program 1 times [2024-12-01 13:17:42,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:42,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532255474] [2024-12-01 13:17:42,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:42,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:43,074 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:17:43,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:43,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532255474] [2024-12-01 13:17:43,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532255474] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:17:43,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920600011] [2024-12-01 13:17:43,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:43,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:17:43,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:17:43,076 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:17:43,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-01 13:17:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:43,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-01 13:17:43,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:17:43,856 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:17:43,856 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:17:45,056 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:17:45,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920600011] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 13:17:45,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 13:17:45,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-12-01 13:17:45,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144743704] [2024-12-01 13:17:45,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 13:17:45,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-01 13:17:45,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:45,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-01 13:17:45,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=669, Unknown=0, NotChecked=0, Total=756 [2024-12-01 13:17:45,057 INFO L87 Difference]: Start difference. First operand 47187 states and 60038 transitions. Second operand has 28 states, 28 states have (on average 13.571428571428571) internal successors, (380), 27 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:53,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:17:53,827 INFO L93 Difference]: Finished difference Result 262227 states and 335421 transitions. [2024-12-01 13:17:53,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-12-01 13:17:53,827 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 13.571428571428571) internal successors, (380), 27 states have internal predecessors, (380), 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 137 [2024-12-01 13:17:53,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:17:54,029 INFO L225 Difference]: With dead ends: 262227 [2024-12-01 13:17:54,029 INFO L226 Difference]: Without dead ends: 216127 [2024-12-01 13:17:54,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1058 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=967, Invalid=3863, Unknown=0, NotChecked=0, Total=4830 [2024-12-01 13:17:54,075 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 3979 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3979 SdHoareTripleChecker+Valid, 1437 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:17:54,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3979 Valid, 1437 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-01 13:17:54,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216127 states. [2024-12-01 13:18:00,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216127 to 212275. [2024-12-01 13:18:00,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212275 states, 212274 states have (on average 1.259810433684766) internal successors, (267425), 212274 states have internal predecessors, (267425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:01,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212275 states to 212275 states and 267425 transitions. [2024-12-01 13:18:01,133 INFO L78 Accepts]: Start accepts. Automaton has 212275 states and 267425 transitions. Word has length 137 [2024-12-01 13:18:01,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:18:01,133 INFO L471 AbstractCegarLoop]: Abstraction has 212275 states and 267425 transitions. [2024-12-01 13:18:01,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 13.571428571428571) internal successors, (380), 27 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:01,134 INFO L276 IsEmpty]: Start isEmpty. Operand 212275 states and 267425 transitions. [2024-12-01 13:18:01,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-01 13:18:01,137 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:18:01,137 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:18:01,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-01 13:18:01,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-12-01 13:18:01,337 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:18:01,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:18:01,338 INFO L85 PathProgramCache]: Analyzing trace with hash 450463830, now seen corresponding path program 1 times [2024-12-01 13:18:01,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:18:01,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214533781] [2024-12-01 13:18:01,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:18:01,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:18:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:18:01,855 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:18:01,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:18:01,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214533781] [2024-12-01 13:18:01,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214533781] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:18:01,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793486815] [2024-12-01 13:18:01,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:18:01,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:18:01,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:18:01,857 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:18:01,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-01 13:18:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:18:02,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-01 13:18:02,055 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:18:03,317 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:18:03,317 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:18:04,435 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:18:04,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793486815] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 13:18:04,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 13:18:04,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 12] total 30 [2024-12-01 13:18:04,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728465432] [2024-12-01 13:18:04,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 13:18:04,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-12-01 13:18:04,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:18:04,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-12-01 13:18:04,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=776, Unknown=0, NotChecked=0, Total=870 [2024-12-01 13:18:04,437 INFO L87 Difference]: Start difference. First operand 212275 states and 267425 transitions. Second operand has 30 states, 30 states have (on average 12.866666666666667) internal successors, (386), 30 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:13,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:18:13,679 INFO L93 Difference]: Finished difference Result 424333 states and 533827 transitions. [2024-12-01 13:18:13,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-12-01 13:18:13,680 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 12.866666666666667) internal successors, (386), 30 states have internal predecessors, (386), 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 139 [2024-12-01 13:18:13,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:18:13,853 INFO L225 Difference]: With dead ends: 424333 [2024-12-01 13:18:13,854 INFO L226 Difference]: Without dead ends: 233967 [2024-12-01 13:18:13,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1022 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=940, Invalid=3890, Unknown=0, NotChecked=0, Total=4830 [2024-12-01 13:18:13,895 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 3777 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 1816 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3777 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 1845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-01 13:18:13,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3777 Valid, 2157 Invalid, 1845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1816 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-01 13:18:13,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233967 states. [2024-12-01 13:18:20,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233967 to 177617. [2024-12-01 13:18:20,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177617 states, 177616 states have (on average 1.2487501126024683) internal successors, (221798), 177616 states have internal predecessors, (221798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:20,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177617 states to 177617 states and 221798 transitions. [2024-12-01 13:18:20,454 INFO L78 Accepts]: Start accepts. Automaton has 177617 states and 221798 transitions. Word has length 139 [2024-12-01 13:18:20,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:18:20,454 INFO L471 AbstractCegarLoop]: Abstraction has 177617 states and 221798 transitions. [2024-12-01 13:18:20,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 12.866666666666667) internal successors, (386), 30 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:20,454 INFO L276 IsEmpty]: Start isEmpty. Operand 177617 states and 221798 transitions. [2024-12-01 13:18:20,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-01 13:18:20,457 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:18:20,457 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:18:20,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-01 13:18:20,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-12-01 13:18:20,657 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:18:20,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:18:20,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1255066238, now seen corresponding path program 1 times [2024-12-01 13:18:20,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:18:20,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183608746] [2024-12-01 13:18:20,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:18:20,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:18:20,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:18:21,421 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:18:21,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:18:21,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183608746] [2024-12-01 13:18:21,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183608746] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:18:21,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985230111] [2024-12-01 13:18:21,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:18:21,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:18:21,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:18:21,422 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:18:21,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-01 13:18:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:18:21,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-01 13:18:21,604 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:18:22,137 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:18:22,137 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:18:23,386 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:18:23,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985230111] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 13:18:23,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 13:18:23,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 25 [2024-12-01 13:18:23,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890470717] [2024-12-01 13:18:23,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 13:18:23,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-01 13:18:23,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:18:23,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-01 13:18:23,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=552, Unknown=0, NotChecked=0, Total=650 [2024-12-01 13:18:23,388 INFO L87 Difference]: Start difference. First operand 177617 states and 221798 transitions. Second operand has 26 states, 26 states have (on average 13.961538461538462) internal successors, (363), 25 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:37,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:18:37,450 INFO L93 Difference]: Finished difference Result 533432 states and 668550 transitions. [2024-12-01 13:18:37,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-01 13:18:37,450 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.961538461538462) internal successors, (363), 25 states have internal predecessors, (363), 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 139 [2024-12-01 13:18:37,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:18:37,811 INFO L225 Difference]: With dead ends: 533432 [2024-12-01 13:18:37,811 INFO L226 Difference]: Without dead ends: 363915 [2024-12-01 13:18:37,869 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=287, Invalid=1045, Unknown=0, NotChecked=0, Total=1332 [2024-12-01 13:18:37,869 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 1506 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-01 13:18:37,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1040 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-01 13:18:38,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363915 states. [2024-12-01 13:18:51,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363915 to 360519. [2024-12-01 13:18:51,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360519 states, 360518 states have (on average 1.2386704686035095) internal successors, (446563), 360518 states have internal predecessors, (446563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:51,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360519 states to 360519 states and 446563 transitions. [2024-12-01 13:18:51,984 INFO L78 Accepts]: Start accepts. Automaton has 360519 states and 446563 transitions. Word has length 139 [2024-12-01 13:18:51,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:18:51,985 INFO L471 AbstractCegarLoop]: Abstraction has 360519 states and 446563 transitions. [2024-12-01 13:18:51,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.961538461538462) internal successors, (363), 25 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:51,985 INFO L276 IsEmpty]: Start isEmpty. Operand 360519 states and 446563 transitions. [2024-12-01 13:18:51,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-01 13:18:51,991 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:18:51,991 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:18:51,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-01 13:18:52,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-12-01 13:18:52,192 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:18:52,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:18:52,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1324775618, now seen corresponding path program 1 times [2024-12-01 13:18:52,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:18:52,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192890224] [2024-12-01 13:18:52,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:18:52,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:18:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:18:52,607 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:18:52,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:18:52,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192890224] [2024-12-01 13:18:52,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192890224] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:18:52,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031715947] [2024-12-01 13:18:52,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:18:52,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:18:52,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:18:52,609 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:18:52,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-01 13:18:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:18:52,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-01 13:18:52,832 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:18:53,283 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:18:53,283 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:18:54,942 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:18:54,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031715947] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 13:18:54,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 13:18:54,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-12-01 13:18:54,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200691504] [2024-12-01 13:18:54,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 13:18:54,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-01 13:18:54,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:18:54,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-01 13:18:54,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2024-12-01 13:18:54,944 INFO L87 Difference]: Start difference. First operand 360519 states and 446563 transitions. Second operand has 22 states, 22 states have (on average 13.818181818181818) internal successors, (304), 21 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:19:18,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:19:18,556 INFO L93 Difference]: Finished difference Result 1038883 states and 1287469 transitions. [2024-12-01 13:19:18,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-01 13:19:18,556 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.818181818181818) internal successors, (304), 21 states have internal predecessors, (304), 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 140 [2024-12-01 13:19:18,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:19:19,155 INFO L225 Difference]: With dead ends: 1038883 [2024-12-01 13:19:19,155 INFO L226 Difference]: Without dead ends: 703657 [2024-12-01 13:19:19,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2024-12-01 13:19:19,264 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 1140 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:19:19,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 1056 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 13:19:19,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703657 states. [2024-12-01 13:19:45,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703657 to 703653. [2024-12-01 13:19:45,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703653 states, 703652 states have (on average 1.2332317679762155) internal successors, (867766), 703652 states have internal predecessors, (867766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:19:47,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703653 states to 703653 states and 867766 transitions. [2024-12-01 13:19:47,167 INFO L78 Accepts]: Start accepts. Automaton has 703653 states and 867766 transitions. Word has length 140 [2024-12-01 13:19:47,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 13:19:47,167 INFO L471 AbstractCegarLoop]: Abstraction has 703653 states and 867766 transitions. [2024-12-01 13:19:47,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.818181818181818) internal successors, (304), 21 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:19:47,168 INFO L276 IsEmpty]: Start isEmpty. Operand 703653 states and 867766 transitions. [2024-12-01 13:19:47,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-01 13:19:47,174 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 13:19:47,174 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:19:47,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-01 13:19:47,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-12-01 13:19:47,375 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 13:19:47,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:19:47,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1193326242, now seen corresponding path program 1 times [2024-12-01 13:19:47,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:19:47,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727512168] [2024-12-01 13:19:47,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:19:47,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:19:47,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:19:47,926 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:19:47,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:19:47,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727512168] [2024-12-01 13:19:47,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727512168] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:19:47,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993565602] [2024-12-01 13:19:47,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:19:47,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:19:47,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:19:47,928 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:19:47,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9661d6a4-93eb-41db-bef9-e7cb7d8bb691/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-01 13:19:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:19:48,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-01 13:19:48,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:19:48,782 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:19:48,782 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:19:50,318 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:19:50,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993565602] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 13:19:50,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 13:19:50,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-12-01 13:19:50,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314886562] [2024-12-01 13:19:50,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 13:19:50,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-01 13:19:50,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:19:50,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-01 13:19:50,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2024-12-01 13:19:50,320 INFO L87 Difference]: Start difference. First operand 703653 states and 867766 transitions. Second operand has 21 states, 21 states have (on average 16.238095238095237) internal successors, (341), 20 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:20:37,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 13:20:37,642 INFO L93 Difference]: Finished difference Result 2021747 states and 2501073 transitions. [2024-12-01 13:20:37,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-01 13:20:37,643 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 16.238095238095237) internal successors, (341), 20 states have internal predecessors, (341), 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 141 [2024-12-01 13:20:37,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 13:20:39,380 INFO L225 Difference]: With dead ends: 2021747 [2024-12-01 13:20:39,380 INFO L226 Difference]: Without dead ends: 1419827 [2024-12-01 13:20:39,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 269 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=243, Invalid=749, Unknown=0, NotChecked=0, Total=992 [2024-12-01 13:20:39,621 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 1354 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1354 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 13:20:39,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1354 Valid, 780 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 13:20:40,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419827 states.