./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.08.cil-1.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_007da9f9-42dc-4970-9c51-556a68bc5c11/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007da9f9-42dc-4970-9c51-556a68bc5c11/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_007da9f9-42dc-4970-9c51-556a68bc5c11/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007da9f9-42dc-4970-9c51-556a68bc5c11/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.08.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007da9f9-42dc-4970-9c51-556a68bc5c11/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_007da9f9-42dc-4970-9c51-556a68bc5c11/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 bfa23a07aa8a02ca6771de75de8be171cc21a8c2878b440538c1944a91ea1c1d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:47:23,052 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:47:23,110 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007da9f9-42dc-4970-9c51-556a68bc5c11/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:47:23,114 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:47:23,115 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:47:23,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:47:23,138 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:47:23,138 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:47:23,139 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:47:23,139 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:47:23,139 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:47:23,139 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:47:23,139 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:47:23,139 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:47:23,139 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:47:23,140 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:47:23,140 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:47:23,140 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:47:23,140 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:47:23,140 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:47:23,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:47:23,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:47:23,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:47:23,140 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:47:23,140 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:47:23,140 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:47:23,140 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:47:23,140 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:47:23,141 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:47:23,141 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:47:23,141 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:47:23,141 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:47:23,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:47:23,141 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:47:23,141 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:47:23,141 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:47:23,141 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:47:23,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:47:23,141 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:47:23,142 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:47:23,142 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:47:23,142 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:47:23,142 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:47:23,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:47:23,142 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:47:23,142 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:47:23,142 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:47:23,142 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:47:23,142 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_007da9f9-42dc-4970-9c51-556a68bc5c11/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 -> bfa23a07aa8a02ca6771de75de8be171cc21a8c2878b440538c1944a91ea1c1d [2024-12-02 08:47:23,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:47:23,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:47:23,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:47:23,401 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:47:23,401 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:47:23,402 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007da9f9-42dc-4970-9c51-556a68bc5c11/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.08.cil-1.c [2024-12-02 08:47:26,075 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007da9f9-42dc-4970-9c51-556a68bc5c11/bin/uautomizer-verify-84ZbGMXZE1/data/784b80528/99e4054dfc7b4f2eba3b5bf0569f41df/FLAG177f5adfb [2024-12-02 08:47:26,642 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:47:26,643 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007da9f9-42dc-4970-9c51-556a68bc5c11/sv-benchmarks/c/combinations/Problem05_label45+token_ring.08.cil-1.c [2024-12-02 08:47:26,684 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007da9f9-42dc-4970-9c51-556a68bc5c11/bin/uautomizer-verify-84ZbGMXZE1/data/784b80528/99e4054dfc7b4f2eba3b5bf0569f41df/FLAG177f5adfb [2024-12-02 08:47:27,144 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007da9f9-42dc-4970-9c51-556a68bc5c11/bin/uautomizer-verify-84ZbGMXZE1/data/784b80528/99e4054dfc7b4f2eba3b5bf0569f41df [2024-12-02 08:47:27,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:47:27,146 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:47:27,147 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:47:27,147 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:47:27,150 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:47:27,151 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:47:27" (1/1) ... [2024-12-02 08:47:27,152 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5022f8d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:27, skipping insertion in model container [2024-12-02 08:47:27,152 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:47:27" (1/1) ... [2024-12-02 08:47:27,296 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:47:28,778 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_007da9f9-42dc-4970-9c51-556a68bc5c11/sv-benchmarks/c/combinations/Problem05_label45+token_ring.08.cil-1.c[380323,380336] [2024-12-02 08:47:28,807 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_007da9f9-42dc-4970-9c51-556a68bc5c11/sv-benchmarks/c/combinations/Problem05_label45+token_ring.08.cil-1.c[383339,383352] [2024-12-02 08:47:29,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:47:29,046 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:47:29,929 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_007da9f9-42dc-4970-9c51-556a68bc5c11/sv-benchmarks/c/combinations/Problem05_label45+token_ring.08.cil-1.c[380323,380336] [2024-12-02 08:47:29,934 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_007da9f9-42dc-4970-9c51-556a68bc5c11/sv-benchmarks/c/combinations/Problem05_label45+token_ring.08.cil-1.c[383339,383352] [2024-12-02 08:47:29,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:47:30,029 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:47:30,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:30 WrapperNode [2024-12-02 08:47:30,030 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:47:30,031 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:47:30,031 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:47:30,031 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:47:30,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:30" (1/1) ... [2024-12-02 08:47:30,103 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:30" (1/1) ... [2024-12-02 08:47:30,417 INFO L138 Inliner]: procedures = 60, calls = 65, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 12981 [2024-12-02 08:47:30,417 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:47:30,418 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:47:30,418 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:47:30,418 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:47:30,427 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:30" (1/1) ... [2024-12-02 08:47:30,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:30" (1/1) ... [2024-12-02 08:47:30,467 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:30" (1/1) ... [2024-12-02 08:47:30,529 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 08:47:30,529 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:30" (1/1) ... [2024-12-02 08:47:30,529 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:30" (1/1) ... [2024-12-02 08:47:30,735 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:30" (1/1) ... [2024-12-02 08:47:30,746 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:30" (1/1) ... [2024-12-02 08:47:30,789 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:30" (1/1) ... [2024-12-02 08:47:30,848 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:30" (1/1) ... [2024-12-02 08:47:30,861 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:30" (1/1) ... [2024-12-02 08:47:30,891 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:47:30,892 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:47:30,892 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:47:30,892 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:47:30,893 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:30" (1/1) ... [2024-12-02 08:47:30,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:47:30,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007da9f9-42dc-4970-9c51-556a68bc5c11/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:47:30,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007da9f9-42dc-4970-9c51-556a68bc5c11/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:47:30,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_007da9f9-42dc-4970-9c51-556a68bc5c11/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:47:30,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:47:30,938 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-12-02 08:47:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-12-02 08:47:30,938 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-12-02 08:47:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-12-02 08:47:30,938 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-12-02 08:47:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-12-02 08:47:30,938 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-12-02 08:47:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-12-02 08:47:30,938 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-12-02 08:47:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-12-02 08:47:30,939 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-12-02 08:47:30,939 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-12-02 08:47:30,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:47:30,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:47:30,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:47:31,044 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:47:31,046 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:47:39,186 INFO L? ?]: Removed 1731 outVars from TransFormulas that were not future-live. [2024-12-02 08:47:39,186 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:47:39,239 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:47:39,239 INFO L312 CfgBuilder]: Removed 24 assume(true) statements. [2024-12-02 08:47:39,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:47:39 BoogieIcfgContainer [2024-12-02 08:47:39,240 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:47:39,242 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:47:39,243 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:47:39,247 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:47:39,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:47:27" (1/3) ... [2024-12-02 08:47:39,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cca2bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:47:39, skipping insertion in model container [2024-12-02 08:47:39,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:30" (2/3) ... [2024-12-02 08:47:39,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cca2bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:47:39, skipping insertion in model container [2024-12-02 08:47:39,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:47:39" (3/3) ... [2024-12-02 08:47:39,249 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.08.cil-1.c [2024-12-02 08:47:39,263 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:47:39,265 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label45+token_ring.08.cil-1.c that has 7 procedures, 2463 locations, 1 initial locations, 12 loop locations, and 2 error locations. [2024-12-02 08:47:39,346 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:47:39,355 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;@ff4f2c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:47:39,355 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 08:47:39,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 2463 states, 2433 states have (on average 1.8483353884093712) internal successors, (4497), 2435 states have internal predecessors, (4497), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 08:47:39,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 08:47:39,376 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:39,377 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:47:39,377 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:39,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:39,382 INFO L85 PathProgramCache]: Analyzing trace with hash -910938023, now seen corresponding path program 1 times [2024-12-02 08:47:39,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:39,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45051432] [2024-12-02 08:47:39,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:39,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:39,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:47:39,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:39,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45051432] [2024-12-02 08:47:39,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45051432] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:39,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:39,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:47:39,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633178641] [2024-12-02 08:47:39,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:39,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:47:39,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:39,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:47:39,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:47:39,705 INFO L87 Difference]: Start difference. First operand has 2463 states, 2433 states have (on average 1.8483353884093712) internal successors, (4497), 2435 states have internal predecessors, (4497), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:47:39,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:39,854 INFO L93 Difference]: Finished difference Result 4920 states and 9071 transitions. [2024-12-02 08:47:39,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:47:39,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-12-02 08:47:39,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:39,874 INFO L225 Difference]: With dead ends: 4920 [2024-12-02 08:47:39,874 INFO L226 Difference]: Without dead ends: 2396 [2024-12-02 08:47:39,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:47:39,884 INFO L435 NwaCegarLoop]: 4454 mSDtfsCounter, 427 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 8476 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:39,884 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 8476 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:47:39,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2396 states. [2024-12-02 08:47:39,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2396 to 2396. [2024-12-02 08:47:39,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2396 states, 2366 states have (on average 1.835164835164835) internal successors, (4342), 2368 states have internal predecessors, (4342), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 08:47:39,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2396 states to 2396 states and 4386 transitions. [2024-12-02 08:47:39,984 INFO L78 Accepts]: Start accepts. Automaton has 2396 states and 4386 transitions. Word has length 132 [2024-12-02 08:47:39,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:39,985 INFO L471 AbstractCegarLoop]: Abstraction has 2396 states and 4386 transitions. [2024-12-02 08:47:39,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:47:39,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2396 states and 4386 transitions. [2024-12-02 08:47:39,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 08:47:39,989 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:39,989 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:47:39,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 08:47:39,989 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:39,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:39,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1772771625, now seen corresponding path program 1 times [2024-12-02 08:47:39,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:39,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605573310] [2024-12-02 08:47:39,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:39,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:40,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:47:40,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:40,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605573310] [2024-12-02 08:47:40,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605573310] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:40,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:40,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:47:40,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350272843] [2024-12-02 08:47:40,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:40,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:47:40,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:40,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:47:40,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:47:40,220 INFO L87 Difference]: Start difference. First operand 2396 states and 4386 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:47:40,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:40,898 INFO L93 Difference]: Finished difference Result 2946 states and 5256 transitions. [2024-12-02 08:47:40,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:47:40,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-12-02 08:47:40,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:40,910 INFO L225 Difference]: With dead ends: 2946 [2024-12-02 08:47:40,910 INFO L226 Difference]: Without dead ends: 2687 [2024-12-02 08:47:40,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:47:40,913 INFO L435 NwaCegarLoop]: 4289 mSDtfsCounter, 4766 mSDsluCounter, 8752 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4782 SdHoareTripleChecker+Valid, 13041 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:40,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4782 Valid, 13041 Invalid, 516 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:47:40,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2024-12-02 08:47:40,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 2666. [2024-12-02 08:47:40,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2666 states, 2612 states have (on average 1.8116385911179174) internal successors, (4732), 2615 states have internal predecessors, (4732), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2024-12-02 08:47:40,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2666 states to 2666 states and 4811 transitions. [2024-12-02 08:47:40,982 INFO L78 Accepts]: Start accepts. Automaton has 2666 states and 4811 transitions. Word has length 132 [2024-12-02 08:47:40,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:40,982 INFO L471 AbstractCegarLoop]: Abstraction has 2666 states and 4811 transitions. [2024-12-02 08:47:40,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:47:40,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2666 states and 4811 transitions. [2024-12-02 08:47:40,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 08:47:40,986 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:40,986 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:47:40,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:47:40,986 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:40,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:40,987 INFO L85 PathProgramCache]: Analyzing trace with hash -889632165, now seen corresponding path program 1 times [2024-12-02 08:47:40,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:40,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391081236] [2024-12-02 08:47:40,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:40,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:41,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:47:41,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:41,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391081236] [2024-12-02 08:47:41,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391081236] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:41,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:41,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:47:41,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142717771] [2024-12-02 08:47:41,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:41,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:47:41,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:41,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:47:41,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:47:41,190 INFO L87 Difference]: Start difference. First operand 2666 states and 4811 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:47:42,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:42,106 INFO L93 Difference]: Finished difference Result 3539 states and 6203 transitions. [2024-12-02 08:47:42,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:47:42,108 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-12-02 08:47:42,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:42,124 INFO L225 Difference]: With dead ends: 3539 [2024-12-02 08:47:42,124 INFO L226 Difference]: Without dead ends: 3010 [2024-12-02 08:47:42,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:47:42,128 INFO L435 NwaCegarLoop]: 4512 mSDtfsCounter, 4768 mSDsluCounter, 13554 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4784 SdHoareTripleChecker+Valid, 18066 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:42,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4784 Valid, 18066 Invalid, 846 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:47:42,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2024-12-02 08:47:42,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 2917. [2024-12-02 08:47:42,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2917 states, 2839 states have (on average 1.790771398379711) internal successors, (5084), 2843 states have internal predecessors, (5084), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (60), 57 states have call predecessors, (60), 56 states have call successors, (60) [2024-12-02 08:47:42,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2917 states to 2917 states and 5200 transitions. [2024-12-02 08:47:42,239 INFO L78 Accepts]: Start accepts. Automaton has 2917 states and 5200 transitions. Word has length 132 [2024-12-02 08:47:42,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:42,240 INFO L471 AbstractCegarLoop]: Abstraction has 2917 states and 5200 transitions. [2024-12-02 08:47:42,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:47:42,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2917 states and 5200 transitions. [2024-12-02 08:47:42,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 08:47:42,243 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:42,243 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:47:42,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:47:42,243 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:42,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:42,244 INFO L85 PathProgramCache]: Analyzing trace with hash -418275815, now seen corresponding path program 1 times [2024-12-02 08:47:42,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:42,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153832271] [2024-12-02 08:47:42,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:42,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:42,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:47:42,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:42,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153832271] [2024-12-02 08:47:42,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153832271] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:42,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:42,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:47:42,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829590200] [2024-12-02 08:47:42,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:42,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:47:42,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:42,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:47:42,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:47:42,477 INFO L87 Difference]: Start difference. First operand 2917 states and 5200 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:47:43,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:43,425 INFO L93 Difference]: Finished difference Result 4338 states and 7461 transitions. [2024-12-02 08:47:43,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:47:43,427 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-12-02 08:47:43,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:43,448 INFO L225 Difference]: With dead ends: 4338 [2024-12-02 08:47:43,448 INFO L226 Difference]: Without dead ends: 3558 [2024-12-02 08:47:43,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:47:43,454 INFO L435 NwaCegarLoop]: 4315 mSDtfsCounter, 4787 mSDsluCounter, 13088 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4803 SdHoareTripleChecker+Valid, 17403 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:43,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4803 Valid, 17403 Invalid, 715 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:47:43,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3558 states. [2024-12-02 08:47:43,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3558 to 3452. [2024-12-02 08:47:43,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3324 states have (on average 1.7590252707581226) internal successors, (5847), 3332 states have internal predecessors, (5847), 90 states have call successors, (90), 30 states have call predecessors, (90), 36 states have return successors, (106), 93 states have call predecessors, (106), 90 states have call successors, (106) [2024-12-02 08:47:43,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 6043 transitions. [2024-12-02 08:47:43,596 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 6043 transitions. Word has length 132 [2024-12-02 08:47:43,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:43,596 INFO L471 AbstractCegarLoop]: Abstraction has 3452 states and 6043 transitions. [2024-12-02 08:47:43,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:47:43,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 6043 transitions. [2024-12-02 08:47:43,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 08:47:43,599 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:43,599 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:47:43,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:47:43,599 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:43,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:43,600 INFO L85 PathProgramCache]: Analyzing trace with hash -2065638757, now seen corresponding path program 1 times [2024-12-02 08:47:43,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:43,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932746885] [2024-12-02 08:47:43,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:43,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:43,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:47:43,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:43,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932746885] [2024-12-02 08:47:43,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932746885] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:43,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:43,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:47:43,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721017301] [2024-12-02 08:47:43,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:43,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:47:43,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:43,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:47:43,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:47:43,769 INFO L87 Difference]: Start difference. First operand 3452 states and 6043 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:47:44,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:44,524 INFO L93 Difference]: Finished difference Result 6063 states and 10234 transitions. [2024-12-02 08:47:44,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:47:44,525 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-12-02 08:47:44,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:44,546 INFO L225 Difference]: With dead ends: 6063 [2024-12-02 08:47:44,547 INFO L226 Difference]: Without dead ends: 4748 [2024-12-02 08:47:44,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:47:44,552 INFO L435 NwaCegarLoop]: 4505 mSDtfsCounter, 4758 mSDsluCounter, 13533 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4774 SdHoareTripleChecker+Valid, 18038 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:44,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4774 Valid, 18038 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:47:44,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4748 states. [2024-12-02 08:47:44,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4748 to 4615. [2024-12-02 08:47:44,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4615 states, 4381 states have (on average 1.7208399908696645) internal successors, (7539), 4403 states have internal predecessors, (7539), 158 states have call successors, (158), 54 states have call predecessors, (158), 74 states have return successors, (222), 165 states have call predecessors, (222), 158 states have call successors, (222) [2024-12-02 08:47:44,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4615 states to 4615 states and 7919 transitions. [2024-12-02 08:47:44,749 INFO L78 Accepts]: Start accepts. Automaton has 4615 states and 7919 transitions. Word has length 132 [2024-12-02 08:47:44,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:44,750 INFO L471 AbstractCegarLoop]: Abstraction has 4615 states and 7919 transitions. [2024-12-02 08:47:44,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:47:44,750 INFO L276 IsEmpty]: Start isEmpty. Operand 4615 states and 7919 transitions. [2024-12-02 08:47:44,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 08:47:44,754 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:44,754 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:47:44,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:47:44,754 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:44,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:44,755 INFO L85 PathProgramCache]: Analyzing trace with hash 97977817, now seen corresponding path program 1 times [2024-12-02 08:47:44,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:44,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682204526] [2024-12-02 08:47:44,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:44,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:45,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:47:45,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:45,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682204526] [2024-12-02 08:47:45,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682204526] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:45,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:45,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:47:45,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179267201] [2024-12-02 08:47:45,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:45,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:47:45,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:45,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:47:45,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:47:45,044 INFO L87 Difference]: Start difference. First operand 4615 states and 7919 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:47:45,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:45,990 INFO L93 Difference]: Finished difference Result 9828 states and 16452 transitions. [2024-12-02 08:47:45,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:47:45,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-12-02 08:47:45,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:46,011 INFO L225 Difference]: With dead ends: 9828 [2024-12-02 08:47:46,011 INFO L226 Difference]: Without dead ends: 7350 [2024-12-02 08:47:46,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:47:46,018 INFO L435 NwaCegarLoop]: 4498 mSDtfsCounter, 4750 mSDsluCounter, 13514 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4766 SdHoareTripleChecker+Valid, 18012 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:46,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4766 Valid, 18012 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:47:46,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7350 states. [2024-12-02 08:47:46,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7350 to 7175. [2024-12-02 08:47:46,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7175 states, 6711 states have (on average 1.688720011920727) internal successors, (11333), 6779 states have internal predecessors, (11333), 294 states have call successors, (294), 102 states have call predecessors, (294), 168 states have return successors, (550), 309 states have call predecessors, (550), 294 states have call successors, (550) [2024-12-02 08:47:46,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7175 states to 7175 states and 12177 transitions. [2024-12-02 08:47:46,188 INFO L78 Accepts]: Start accepts. Automaton has 7175 states and 12177 transitions. Word has length 132 [2024-12-02 08:47:46,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:46,188 INFO L471 AbstractCegarLoop]: Abstraction has 7175 states and 12177 transitions. [2024-12-02 08:47:46,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:47:46,189 INFO L276 IsEmpty]: Start isEmpty. Operand 7175 states and 12177 transitions. [2024-12-02 08:47:46,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 08:47:46,193 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:46,193 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:47:46,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:47:46,194 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:46,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:46,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1875187561, now seen corresponding path program 1 times [2024-12-02 08:47:46,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:46,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343347894] [2024-12-02 08:47:46,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:46,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:46,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:47:46,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:46,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343347894] [2024-12-02 08:47:46,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343347894] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:46,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:46,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:47:46,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127213674] [2024-12-02 08:47:46,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:46,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:47:46,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:46,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:47:46,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:47:46,335 INFO L87 Difference]: Start difference. First operand 7175 states and 12177 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:47:47,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:47,139 INFO L93 Difference]: Finished difference Result 18276 states and 30976 transitions. [2024-12-02 08:47:47,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:47:47,140 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-12-02 08:47:47,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:47,178 INFO L225 Difference]: With dead ends: 18276 [2024-12-02 08:47:47,178 INFO L226 Difference]: Without dead ends: 13238 [2024-12-02 08:47:47,189 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:47:47,190 INFO L435 NwaCegarLoop]: 4495 mSDtfsCounter, 4745 mSDsluCounter, 13505 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4761 SdHoareTripleChecker+Valid, 18000 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:47,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4761 Valid, 18000 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:47:47,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13238 states. [2024-12-02 08:47:47,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13238 to 12970. [2024-12-02 08:47:47,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12970 states, 11992 states have (on average 1.676200800533689) internal successors, (20101), 12206 states have internal predecessors, (20101), 566 states have call successors, (566), 198 states have call predecessors, (566), 410 states have return successors, (1590), 597 states have call predecessors, (1590), 566 states have call successors, (1590) [2024-12-02 08:47:47,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12970 states to 12970 states and 22257 transitions. [2024-12-02 08:47:47,542 INFO L78 Accepts]: Start accepts. Automaton has 12970 states and 22257 transitions. Word has length 132 [2024-12-02 08:47:47,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:47,542 INFO L471 AbstractCegarLoop]: Abstraction has 12970 states and 22257 transitions. [2024-12-02 08:47:47,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:47:47,542 INFO L276 IsEmpty]: Start isEmpty. Operand 12970 states and 22257 transitions. [2024-12-02 08:47:47,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 08:47:47,546 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:47,547 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:47:47,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:47:47,547 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:47,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:47,547 INFO L85 PathProgramCache]: Analyzing trace with hash 277919257, now seen corresponding path program 1 times [2024-12-02 08:47:47,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:47,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543184536] [2024-12-02 08:47:47,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:47,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:47,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:47:47,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:47,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543184536] [2024-12-02 08:47:47,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543184536] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:47,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:47,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:47:47,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887873610] [2024-12-02 08:47:47,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:47,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:47:47,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:47,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:47:47,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:47:47,650 INFO L87 Difference]: Start difference. First operand 12970 states and 22257 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:47:48,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:48,383 INFO L93 Difference]: Finished difference Result 26743 states and 46767 transitions. [2024-12-02 08:47:48,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:47:48,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-12-02 08:47:48,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:48,451 INFO L225 Difference]: With dead ends: 26743 [2024-12-02 08:47:48,451 INFO L226 Difference]: Without dead ends: 15910 [2024-12-02 08:47:48,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:47:48,486 INFO L435 NwaCegarLoop]: 4266 mSDtfsCounter, 4526 mSDsluCounter, 8417 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4542 SdHoareTripleChecker+Valid, 12683 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:48,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4542 Valid, 12683 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:47:48,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15910 states. [2024-12-02 08:47:49,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15910 to 12970. [2024-12-02 08:47:49,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12970 states, 11992 states have (on average 1.6734489659773182) internal successors, (20068), 12206 states have internal predecessors, (20068), 566 states have call successors, (566), 198 states have call predecessors, (566), 410 states have return successors, (1590), 597 states have call predecessors, (1590), 566 states have call successors, (1590) [2024-12-02 08:47:49,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12970 states to 12970 states and 22224 transitions. [2024-12-02 08:47:49,135 INFO L78 Accepts]: Start accepts. Automaton has 12970 states and 22224 transitions. Word has length 132 [2024-12-02 08:47:49,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:49,136 INFO L471 AbstractCegarLoop]: Abstraction has 12970 states and 22224 transitions. [2024-12-02 08:47:49,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:47:49,136 INFO L276 IsEmpty]: Start isEmpty. Operand 12970 states and 22224 transitions. [2024-12-02 08:47:49,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 08:47:49,143 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:49,143 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:47:49,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:47:49,143 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:49,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:49,183 INFO L85 PathProgramCache]: Analyzing trace with hash -345362345, now seen corresponding path program 1 times [2024-12-02 08:47:49,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:49,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672408624] [2024-12-02 08:47:49,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:49,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:49,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:47:49,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:49,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672408624] [2024-12-02 08:47:49,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672408624] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:49,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:49,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:47:49,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29709644] [2024-12-02 08:47:49,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:49,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:47:49,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:49,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:47:49,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:47:49,327 INFO L87 Difference]: Start difference. First operand 12970 states and 22224 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:47:50,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:50,774 INFO L93 Difference]: Finished difference Result 37419 states and 65667 transitions. [2024-12-02 08:47:50,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:47:50,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-12-02 08:47:50,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:50,847 INFO L225 Difference]: With dead ends: 37419 [2024-12-02 08:47:50,847 INFO L226 Difference]: Without dead ends: 26586 [2024-12-02 08:47:50,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:47:50,870 INFO L435 NwaCegarLoop]: 4487 mSDtfsCounter, 4732 mSDsluCounter, 13482 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4748 SdHoareTripleChecker+Valid, 17969 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:50,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4748 Valid, 17969 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:47:50,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26586 states. [2024-12-02 08:47:51,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26586 to 26180. [2024-12-02 08:47:51,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26180 states, 24012 states have (on average 1.678743961352657) internal successors, (40310), 24680 states have internal predecessors, (40310), 1110 states have call successors, (1110), 390 states have call predecessors, (1110), 1056 states have return successors, (5206), 1173 states have call predecessors, (5206), 1110 states have call successors, (5206) [2024-12-02 08:47:51,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26180 states to 26180 states and 46626 transitions. [2024-12-02 08:47:51,885 INFO L78 Accepts]: Start accepts. Automaton has 26180 states and 46626 transitions. Word has length 132 [2024-12-02 08:47:51,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:51,885 INFO L471 AbstractCegarLoop]: Abstraction has 26180 states and 46626 transitions. [2024-12-02 08:47:51,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:47:51,886 INFO L276 IsEmpty]: Start isEmpty. Operand 26180 states and 46626 transitions. [2024-12-02 08:47:51,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 08:47:51,894 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:51,894 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:47:51,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:47:51,894 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:51,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:51,895 INFO L85 PathProgramCache]: Analyzing trace with hash -226920871, now seen corresponding path program 1 times [2024-12-02 08:47:51,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:51,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615843936] [2024-12-02 08:47:51,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:51,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:52,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:47:52,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:52,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615843936] [2024-12-02 08:47:52,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615843936] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:52,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:52,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:47:52,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894329562] [2024-12-02 08:47:52,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:52,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:47:52,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:52,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:47:52,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:47:52,025 INFO L87 Difference]: Start difference. First operand 26180 states and 46626 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:47:54,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:47:54,642 INFO L93 Difference]: Finished difference Result 85855 states and 159284 transitions. [2024-12-02 08:47:54,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:47:54,643 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-12-02 08:47:54,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:47:54,887 INFO L225 Difference]: With dead ends: 85855 [2024-12-02 08:47:54,887 INFO L226 Difference]: Without dead ends: 61812 [2024-12-02 08:47:54,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:47:54,970 INFO L435 NwaCegarLoop]: 4482 mSDtfsCounter, 4981 mSDsluCounter, 13462 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5006 SdHoareTripleChecker+Valid, 17944 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:47:54,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5006 Valid, 17944 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:47:54,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61812 states. [2024-12-02 08:47:56,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61812 to 57025. [2024-12-02 08:47:56,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57025 states, 52055 states have (on average 1.698395927384497) internal successors, (88410), 54117 states have internal predecessors, (88410), 2134 states have call successors, (2134), 774 states have call predecessors, (2134), 2834 states have return successors, (18518), 2261 states have call predecessors, (18518), 2134 states have call successors, (18518) [2024-12-02 08:47:56,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57025 states to 57025 states and 109062 transitions. [2024-12-02 08:47:56,967 INFO L78 Accepts]: Start accepts. Automaton has 57025 states and 109062 transitions. Word has length 132 [2024-12-02 08:47:56,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:47:56,967 INFO L471 AbstractCegarLoop]: Abstraction has 57025 states and 109062 transitions. [2024-12-02 08:47:56,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:47:56,967 INFO L276 IsEmpty]: Start isEmpty. Operand 57025 states and 109062 transitions. [2024-12-02 08:47:56,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 08:47:56,983 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:47:56,983 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:47:56,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 08:47:56,983 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:47:56,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:47:56,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1162373143, now seen corresponding path program 1 times [2024-12-02 08:47:56,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:47:56,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147412954] [2024-12-02 08:47:56,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:47:56,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:47:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:47:57,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:47:57,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:47:57,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147412954] [2024-12-02 08:47:57,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147412954] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:47:57,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:47:57,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:47:57,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485960602] [2024-12-02 08:47:57,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:47:57,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:47:57,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:47:57,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:47:57,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:47:57,112 INFO L87 Difference]: Start difference. First operand 57025 states and 109062 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:48:02,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:48:02,411 INFO L93 Difference]: Finished difference Result 194172 states and 397014 transitions. [2024-12-02 08:48:02,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:48:02,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-12-02 08:48:02,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:48:03,020 INFO L225 Difference]: With dead ends: 194172 [2024-12-02 08:48:03,020 INFO L226 Difference]: Without dead ends: 139284 [2024-12-02 08:48:03,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:48:03,182 INFO L435 NwaCegarLoop]: 4315 mSDtfsCounter, 4829 mSDsluCounter, 13054 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4844 SdHoareTripleChecker+Valid, 17369 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:48:03,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4844 Valid, 17369 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:48:03,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139284 states. [2024-12-02 08:48:09,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139284 to 130404. [2024-12-02 08:48:10,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130404 states, 118436 states have (on average 1.7218919922996385) internal successors, (203934), 124744 states have internal predecessors, (203934), 4118 states have call successors, (4118), 1542 states have call predecessors, (4118), 7848 states have return successors, (69654), 4373 states have call predecessors, (69654), 4118 states have call successors, (69654) [2024-12-02 08:48:10,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130404 states to 130404 states and 277706 transitions. [2024-12-02 08:48:10,837 INFO L78 Accepts]: Start accepts. Automaton has 130404 states and 277706 transitions. Word has length 132 [2024-12-02 08:48:10,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:48:10,837 INFO L471 AbstractCegarLoop]: Abstraction has 130404 states and 277706 transitions. [2024-12-02 08:48:10,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:48:10,838 INFO L276 IsEmpty]: Start isEmpty. Operand 130404 states and 277706 transitions. [2024-12-02 08:48:10,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 08:48:10,871 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:48:10,871 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:48:10,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 08:48:10,871 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:48:10,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:48:10,871 INFO L85 PathProgramCache]: Analyzing trace with hash -871020903, now seen corresponding path program 1 times [2024-12-02 08:48:10,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:48:10,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503236648] [2024-12-02 08:48:10,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:10,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:48:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:48:11,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:48:11,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:48:11,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503236648] [2024-12-02 08:48:11,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503236648] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:48:11,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:48:11,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:48:11,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759528435] [2024-12-02 08:48:11,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:48:11,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:48:11,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:48:11,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:48:11,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:48:11,036 INFO L87 Difference]: Start difference. First operand 130404 states and 277706 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:48:23,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:48:23,611 INFO L93 Difference]: Finished difference Result 453255 states and 1063396 transitions. [2024-12-02 08:48:23,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:48:23,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-12-02 08:48:23,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:48:25,188 INFO L225 Difference]: With dead ends: 453255 [2024-12-02 08:48:25,188 INFO L226 Difference]: Without dead ends: 324988 [2024-12-02 08:48:25,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:48:25,621 INFO L435 NwaCegarLoop]: 4476 mSDtfsCounter, 4911 mSDsluCounter, 13444 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4936 SdHoareTripleChecker+Valid, 17920 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:48:25,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4936 Valid, 17920 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:48:25,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324988 states. [2024-12-02 08:48:52,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324988 to 310095. [2024-12-02 08:48:52,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310095 states, 279885 states have (on average 1.7435089411722673) internal successors, (487982), 299059 states have internal predecessors, (487982), 7958 states have call successors, (7958), 3078 states have call predecessors, (7958), 22250 states have return successors, (270102), 8469 states have call predecessors, (270102), 7958 states have call successors, (270102) [2024-12-02 08:48:55,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310095 states to 310095 states and 766042 transitions. [2024-12-02 08:48:55,698 INFO L78 Accepts]: Start accepts. Automaton has 310095 states and 766042 transitions. Word has length 132 [2024-12-02 08:48:55,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:48:55,698 INFO L471 AbstractCegarLoop]: Abstraction has 310095 states and 766042 transitions. [2024-12-02 08:48:55,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:48:55,698 INFO L276 IsEmpty]: Start isEmpty. Operand 310095 states and 766042 transitions. [2024-12-02 08:48:55,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 08:48:55,742 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:48:55,742 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:48:55,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 08:48:55,742 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:48:55,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:48:55,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1557237719, now seen corresponding path program 1 times [2024-12-02 08:48:55,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:48:55,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384271610] [2024-12-02 08:48:55,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:55,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:48:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:48:55,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:48:55,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:48:55,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384271610] [2024-12-02 08:48:55,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384271610] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:48:55,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:48:55,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:48:55,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821907395] [2024-12-02 08:48:55,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:48:55,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:48:55,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:48:55,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:48:55,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:48:55,828 INFO L87 Difference]: Start difference. First operand 310095 states and 766042 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 08:49:26,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:49:26,022 INFO L93 Difference]: Finished difference Result 1063820 states and 3023190 transitions. [2024-12-02 08:49:26,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:49:26,023 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-12-02 08:49:26,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:49:31,580 INFO L225 Difference]: With dead ends: 1063820 [2024-12-02 08:49:31,580 INFO L226 Difference]: Without dead ends: 755862 [2024-12-02 08:49:33,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:49:33,188 INFO L435 NwaCegarLoop]: 4469 mSDtfsCounter, 4752 mSDsluCounter, 13425 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4767 SdHoareTripleChecker+Valid, 17894 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:49:33,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4767 Valid, 17894 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:49:33,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755862 states.