./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.04.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.04.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 284334fdd31c4c26d16d0bf558a458f462d11a8d54419841fe6fc9cdbb9a1cfc --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 17:16:00,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:16:00,748 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:16:00,755 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:16:00,757 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:16:00,796 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:16:00,797 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:16:00,797 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:16:00,798 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:16:00,802 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:16:00,802 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:16:00,803 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:16:00,803 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:16:00,803 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:16:00,804 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:16:00,804 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:16:00,804 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:16:00,804 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:16:00,805 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:16:00,805 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:16:00,805 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:16:00,806 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:16:00,806 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:16:00,806 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:16:00,806 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:16:00,807 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:16:00,807 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:16:00,807 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:16:00,807 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:16:00,807 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:16:00,808 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:16:00,808 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:16:00,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:16:00,808 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:16:00,809 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:16:00,809 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:16:00,809 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:16:00,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:16:00,812 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:16:00,812 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:16:00,813 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:16:00,813 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:16:00,813 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 284334fdd31c4c26d16d0bf558a458f462d11a8d54419841fe6fc9cdbb9a1cfc [2024-11-08 17:16:01,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:16:01,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:16:01,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:16:01,156 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:16:01,156 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:16:01,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.04.cil-1.c [2024-11-08 17:16:02,682 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:16:02,928 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:16:02,929 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.04.cil-1.c [2024-11-08 17:16:02,943 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce5801f0d/5cbbcf328dec4959ab21b8f94ff119f8/FLAG105041166 [2024-11-08 17:16:02,957 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce5801f0d/5cbbcf328dec4959ab21b8f94ff119f8 [2024-11-08 17:16:02,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:16:02,961 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:16:02,962 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:16:02,962 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:16:02,967 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:16:02,968 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:16:02" (1/1) ... [2024-11-08 17:16:02,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6686d147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:16:02, skipping insertion in model container [2024-11-08 17:16:02,971 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:16:02" (1/1) ... [2024-11-08 17:16:03,025 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:16:03,246 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.04.cil-1.c[914,927] [2024-11-08 17:16:03,328 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.04.cil-1.c[7115,7128] [2024-11-08 17:16:03,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:16:03,429 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:16:03,443 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.04.cil-1.c[914,927] [2024-11-08 17:16:03,468 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.04.cil-1.c[7115,7128] [2024-11-08 17:16:03,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:16:03,532 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:16:03,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:16:03 WrapperNode [2024-11-08 17:16:03,532 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:16:03,534 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:16:03,535 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:16:03,535 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:16:03,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:16:03" (1/1) ... [2024-11-08 17:16:03,557 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:16:03" (1/1) ... [2024-11-08 17:16:03,604 INFO L138 Inliner]: procedures = 61, calls = 69, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 588 [2024-11-08 17:16:03,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:16:03,605 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:16:03,605 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:16:03,606 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:16:03,615 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:16:03" (1/1) ... [2024-11-08 17:16:03,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:16:03" (1/1) ... [2024-11-08 17:16:03,618 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:16:03" (1/1) ... [2024-11-08 17:16:03,636 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 17:16:03,637 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:16:03" (1/1) ... [2024-11-08 17:16:03,637 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:16:03" (1/1) ... [2024-11-08 17:16:03,646 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:16:03" (1/1) ... [2024-11-08 17:16:03,657 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:16:03" (1/1) ... [2024-11-08 17:16:03,660 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:16:03" (1/1) ... [2024-11-08 17:16:03,662 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:16:03" (1/1) ... [2024-11-08 17:16:03,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:16:03,668 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:16:03,668 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:16:03,668 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:16:03,669 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:16:03" (1/1) ... [2024-11-08 17:16:03,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:16:03,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 17:16:03,711 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:16:03,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:16:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:16:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-08 17:16:03,766 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-08 17:16:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-08 17:16:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-08 17:16:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-08 17:16:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-08 17:16:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-08 17:16:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-08 17:16:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-08 17:16:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-08 17:16:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-08 17:16:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-08 17:16:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-08 17:16:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-08 17:16:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-08 17:16:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-08 17:16:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-08 17:16:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-08 17:16:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-08 17:16:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-08 17:16:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-08 17:16:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-08 17:16:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:16:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-08 17:16:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-08 17:16:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-08 17:16:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-08 17:16:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:16:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:16:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-08 17:16:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-08 17:16:03,926 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:16:03,933 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:16:04,618 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2024-11-08 17:16:04,622 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:16:04,652 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:16:04,655 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-08 17:16:04,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:16:04 BoogieIcfgContainer [2024-11-08 17:16:04,656 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:16:04,658 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:16:04,658 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:16:04,661 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:16:04,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:16:02" (1/3) ... [2024-11-08 17:16:04,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4493aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:16:04, skipping insertion in model container [2024-11-08 17:16:04,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:16:03" (2/3) ... [2024-11-08 17:16:04,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4493aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:16:04, skipping insertion in model container [2024-11-08 17:16:04,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:16:04" (3/3) ... [2024-11-08 17:16:04,666 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.04.cil-1.c [2024-11-08 17:16:04,681 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:16:04,682 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:16:04,752 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:16:04,758 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;@65fb0add, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:16:04,758 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 17:16:04,764 INFO L276 IsEmpty]: Start isEmpty. Operand has 288 states, 239 states have (on average 1.5732217573221758) internal successors, (376), 245 states have internal predecessors, (376), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-08 17:16:04,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 17:16:04,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:04,776 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:04,777 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:04,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:04,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1393347936, now seen corresponding path program 1 times [2024-11-08 17:16:04,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:04,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918129305] [2024-11-08 17:16:04,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:04,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:05,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:05,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 17:16:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:05,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:16:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:05,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 17:16:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:05,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:16:05,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:05,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 17:16:05,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:05,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:16:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:05,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:05,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:05,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918129305] [2024-11-08 17:16:05,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918129305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:05,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:05,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:16:05,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419020396] [2024-11-08 17:16:05,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:05,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:16:05,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:05,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:16:05,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:16:05,545 INFO L87 Difference]: Start difference. First operand has 288 states, 239 states have (on average 1.5732217573221758) internal successors, (376), 245 states have internal predecessors, (376), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 17:16:06,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:06,920 INFO L93 Difference]: Finished difference Result 722 states and 1100 transitions. [2024-11-08 17:16:06,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 17:16:06,923 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-08 17:16:06,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:06,944 INFO L225 Difference]: With dead ends: 722 [2024-11-08 17:16:06,944 INFO L226 Difference]: Without dead ends: 444 [2024-11-08 17:16:06,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-08 17:16:06,956 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 1119 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:06,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 1305 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 17:16:06,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-11-08 17:16:07,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 378. [2024-11-08 17:16:07,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 310 states have (on average 1.4645161290322581) internal successors, (454), 317 states have internal predecessors, (454), 43 states have call successors, (43), 21 states have call predecessors, (43), 23 states have return successors, (52), 42 states have call predecessors, (52), 41 states have call successors, (52) [2024-11-08 17:16:07,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 549 transitions. [2024-11-08 17:16:07,074 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 549 transitions. Word has length 65 [2024-11-08 17:16:07,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:07,075 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 549 transitions. [2024-11-08 17:16:07,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 17:16:07,076 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 549 transitions. [2024-11-08 17:16:07,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 17:16:07,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:07,082 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:07,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:16:07,082 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:07,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:07,086 INFO L85 PathProgramCache]: Analyzing trace with hash -635238174, now seen corresponding path program 1 times [2024-11-08 17:16:07,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:07,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679134198] [2024-11-08 17:16:07,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:07,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:07,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:07,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 17:16:07,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:07,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:16:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:07,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 17:16:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:07,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:16:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:07,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 17:16:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:07,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:16:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:07,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:07,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:07,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679134198] [2024-11-08 17:16:07,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679134198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:07,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:07,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:16:07,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203328376] [2024-11-08 17:16:07,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:07,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:16:07,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:07,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:16:07,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:16:07,272 INFO L87 Difference]: Start difference. First operand 378 states and 549 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-08 17:16:08,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:08,136 INFO L93 Difference]: Finished difference Result 764 states and 1081 transitions. [2024-11-08 17:16:08,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 17:16:08,137 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-08 17:16:08,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:08,141 INFO L225 Difference]: With dead ends: 764 [2024-11-08 17:16:08,141 INFO L226 Difference]: Without dead ends: 583 [2024-11-08 17:16:08,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:16:08,143 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 1053 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:08,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 931 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:16:08,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-08 17:16:08,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 541. [2024-11-08 17:16:08,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 440 states have (on average 1.4363636363636363) internal successors, (632), 450 states have internal predecessors, (632), 59 states have call successors, (59), 35 states have call predecessors, (59), 40 states have return successors, (74), 58 states have call predecessors, (74), 57 states have call successors, (74) [2024-11-08 17:16:08,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 765 transitions. [2024-11-08 17:16:08,193 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 765 transitions. Word has length 65 [2024-11-08 17:16:08,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:08,193 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 765 transitions. [2024-11-08 17:16:08,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-08 17:16:08,194 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 765 transitions. [2024-11-08 17:16:08,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 17:16:08,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:08,196 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:08,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:16:08,197 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:08,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:08,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1910340863, now seen corresponding path program 1 times [2024-11-08 17:16:08,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:08,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822740519] [2024-11-08 17:16:08,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:08,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:08,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:08,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:08,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 17:16:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:08,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:16:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:08,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 17:16:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:08,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:16:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:08,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 17:16:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:08,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:16:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:08,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:08,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:08,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822740519] [2024-11-08 17:16:08,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822740519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:08,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:08,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:16:08,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965264926] [2024-11-08 17:16:08,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:08,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:16:08,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:08,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:16:08,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:16:08,383 INFO L87 Difference]: Start difference. First operand 541 states and 765 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 17:16:09,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:09,257 INFO L93 Difference]: Finished difference Result 921 states and 1282 transitions. [2024-11-08 17:16:09,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:16:09,258 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-08 17:16:09,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:09,262 INFO L225 Difference]: With dead ends: 921 [2024-11-08 17:16:09,262 INFO L226 Difference]: Without dead ends: 577 [2024-11-08 17:16:09,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:16:09,265 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 326 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 1155 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:09,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 1622 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1155 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:16:09,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-08 17:16:09,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 551. [2024-11-08 17:16:09,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 448 states have (on average 1.4241071428571428) internal successors, (638), 458 states have internal predecessors, (638), 59 states have call successors, (59), 35 states have call predecessors, (59), 42 states have return successors, (76), 60 states have call predecessors, (76), 57 states have call successors, (76) [2024-11-08 17:16:09,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 773 transitions. [2024-11-08 17:16:09,329 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 773 transitions. Word has length 65 [2024-11-08 17:16:09,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:09,329 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 773 transitions. [2024-11-08 17:16:09,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 17:16:09,330 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 773 transitions. [2024-11-08 17:16:09,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 17:16:09,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:09,335 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:09,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:16:09,335 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:09,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:09,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1355267135, now seen corresponding path program 1 times [2024-11-08 17:16:09,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:09,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466770498] [2024-11-08 17:16:09,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:09,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:09,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:09,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 17:16:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:09,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:16:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:09,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 17:16:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:09,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:16:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:09,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 17:16:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:09,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:16:09,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:09,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:09,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:09,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466770498] [2024-11-08 17:16:09,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466770498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:09,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:09,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:16:09,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771944251] [2024-11-08 17:16:09,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:09,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:16:09,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:09,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:16:09,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:16:09,537 INFO L87 Difference]: Start difference. First operand 551 states and 773 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 17:16:10,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:10,406 INFO L93 Difference]: Finished difference Result 955 states and 1318 transitions. [2024-11-08 17:16:10,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 17:16:10,406 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-08 17:16:10,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:10,413 INFO L225 Difference]: With dead ends: 955 [2024-11-08 17:16:10,413 INFO L226 Difference]: Without dead ends: 601 [2024-11-08 17:16:10,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:16:10,418 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 490 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:10,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 1442 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:16:10,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-11-08 17:16:10,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 571. [2024-11-08 17:16:10,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 464 states have (on average 1.4094827586206897) internal successors, (654), 474 states have internal predecessors, (654), 59 states have call successors, (59), 35 states have call predecessors, (59), 46 states have return successors, (80), 64 states have call predecessors, (80), 57 states have call successors, (80) [2024-11-08 17:16:10,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 793 transitions. [2024-11-08 17:16:10,469 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 793 transitions. Word has length 65 [2024-11-08 17:16:10,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:10,473 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 793 transitions. [2024-11-08 17:16:10,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 17:16:10,474 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 793 transitions. [2024-11-08 17:16:10,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 17:16:10,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:10,475 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:10,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:16:10,476 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:10,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:10,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1553496767, now seen corresponding path program 1 times [2024-11-08 17:16:10,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:10,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984534253] [2024-11-08 17:16:10,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:10,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:10,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:10,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 17:16:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:10,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:16:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:10,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 17:16:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:10,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:16:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:10,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 17:16:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:10,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:16:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:10,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:10,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:10,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984534253] [2024-11-08 17:16:10,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984534253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:10,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:10,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:16:10,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651497200] [2024-11-08 17:16:10,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:10,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:16:10,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:10,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:16:10,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:16:10,649 INFO L87 Difference]: Start difference. First operand 571 states and 793 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 17:16:11,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:11,552 INFO L93 Difference]: Finished difference Result 1120 states and 1523 transitions. [2024-11-08 17:16:11,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:16:11,553 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-08 17:16:11,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:11,557 INFO L225 Difference]: With dead ends: 1120 [2024-11-08 17:16:11,558 INFO L226 Difference]: Without dead ends: 827 [2024-11-08 17:16:11,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 17:16:11,560 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 739 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:11,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 974 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:16:11,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2024-11-08 17:16:11,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 747. [2024-11-08 17:16:11,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 604 states have (on average 1.3791390728476822) internal successors, (833), 616 states have internal predecessors, (833), 78 states have call successors, (78), 49 states have call predecessors, (78), 63 states have return successors, (104), 85 states have call predecessors, (104), 76 states have call successors, (104) [2024-11-08 17:16:11,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1015 transitions. [2024-11-08 17:16:11,620 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1015 transitions. Word has length 65 [2024-11-08 17:16:11,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:11,621 INFO L471 AbstractCegarLoop]: Abstraction has 747 states and 1015 transitions. [2024-11-08 17:16:11,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 17:16:11,622 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1015 transitions. [2024-11-08 17:16:11,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 17:16:11,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:11,624 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:11,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:16:11,624 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:11,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:11,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1412948157, now seen corresponding path program 1 times [2024-11-08 17:16:11,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:11,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44751236] [2024-11-08 17:16:11,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:11,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:11,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:11,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 17:16:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:11,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:16:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:11,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 17:16:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:11,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:16:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:11,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 17:16:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:11,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:16:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:11,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:11,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:11,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44751236] [2024-11-08 17:16:11,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44751236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:11,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:11,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:16:11,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168309803] [2024-11-08 17:16:11,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:11,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:16:11,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:11,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:16:11,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:16:11,839 INFO L87 Difference]: Start difference. First operand 747 states and 1015 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 17:16:12,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:12,796 INFO L93 Difference]: Finished difference Result 1348 states and 1774 transitions. [2024-11-08 17:16:12,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 17:16:12,797 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-08 17:16:12,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:12,804 INFO L225 Difference]: With dead ends: 1348 [2024-11-08 17:16:12,804 INFO L226 Difference]: Without dead ends: 888 [2024-11-08 17:16:12,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-08 17:16:12,809 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 803 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:12,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 1183 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:16:12,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2024-11-08 17:16:12,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 757. [2024-11-08 17:16:12,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 613 states have (on average 1.3719412724306688) internal successors, (841), 624 states have internal predecessors, (841), 79 states have call successors, (79), 50 states have call predecessors, (79), 63 states have return successors, (101), 86 states have call predecessors, (101), 77 states have call successors, (101) [2024-11-08 17:16:12,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1021 transitions. [2024-11-08 17:16:12,875 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1021 transitions. Word has length 65 [2024-11-08 17:16:12,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:12,876 INFO L471 AbstractCegarLoop]: Abstraction has 757 states and 1021 transitions. [2024-11-08 17:16:12,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 17:16:12,877 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1021 transitions. [2024-11-08 17:16:12,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 17:16:12,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:12,882 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:12,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:16:12,882 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:12,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:12,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1546961663, now seen corresponding path program 1 times [2024-11-08 17:16:12,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:12,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367357190] [2024-11-08 17:16:12,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:12,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:12,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:12,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 17:16:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:12,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:16:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:12,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 17:16:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:12,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:16:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:12,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 17:16:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:12,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:16:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:12,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:12,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:12,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367357190] [2024-11-08 17:16:12,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367357190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:12,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:12,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:16:12,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238273193] [2024-11-08 17:16:12,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:12,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:16:12,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:12,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:16:12,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:16:12,984 INFO L87 Difference]: Start difference. First operand 757 states and 1021 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 17:16:13,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:13,680 INFO L93 Difference]: Finished difference Result 1952 states and 2569 transitions. [2024-11-08 17:16:13,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 17:16:13,680 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-08 17:16:13,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:13,688 INFO L225 Difference]: With dead ends: 1952 [2024-11-08 17:16:13,688 INFO L226 Difference]: Without dead ends: 1401 [2024-11-08 17:16:13,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:16:13,690 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 977 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:13,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 807 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 17:16:13,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2024-11-08 17:16:13,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1293. [2024-11-08 17:16:13,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 1032 states have (on average 1.3333333333333333) internal successors, (1376), 1053 states have internal predecessors, (1376), 138 states have call successors, (138), 93 states have call predecessors, (138), 121 states have return successors, (196), 153 states have call predecessors, (196), 136 states have call successors, (196) [2024-11-08 17:16:13,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 1710 transitions. [2024-11-08 17:16:13,772 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 1710 transitions. Word has length 65 [2024-11-08 17:16:13,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:13,773 INFO L471 AbstractCegarLoop]: Abstraction has 1293 states and 1710 transitions. [2024-11-08 17:16:13,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 17:16:13,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 1710 transitions. [2024-11-08 17:16:13,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 17:16:13,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:13,779 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:13,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:16:13,779 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:13,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:13,779 INFO L85 PathProgramCache]: Analyzing trace with hash -28057005, now seen corresponding path program 1 times [2024-11-08 17:16:13,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:13,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413312118] [2024-11-08 17:16:13,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:13,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:13,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:13,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 17:16:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:13,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:16:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:13,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 17:16:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:13,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:16:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:13,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 17:16:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:13,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:16:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:13,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:13,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:13,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413312118] [2024-11-08 17:16:13,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413312118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:13,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:13,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:16:13,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244751163] [2024-11-08 17:16:13,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:13,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:16:13,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:13,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:16:13,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:16:13,868 INFO L87 Difference]: Start difference. First operand 1293 states and 1710 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 17:16:14,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:14,624 INFO L93 Difference]: Finished difference Result 3005 states and 3933 transitions. [2024-11-08 17:16:14,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:16:14,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-08 17:16:14,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:14,636 INFO L225 Difference]: With dead ends: 3005 [2024-11-08 17:16:14,637 INFO L226 Difference]: Without dead ends: 1897 [2024-11-08 17:16:14,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:16:14,643 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 513 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:14,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 961 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 17:16:14,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2024-11-08 17:16:14,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1744. [2024-11-08 17:16:14,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1744 states, 1383 states have (on average 1.3058568329718003) internal successors, (1806), 1405 states have internal predecessors, (1806), 183 states have call successors, (183), 137 states have call predecessors, (183), 176 states have return successors, (264), 208 states have call predecessors, (264), 181 states have call successors, (264) [2024-11-08 17:16:14,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 2253 transitions. [2024-11-08 17:16:14,802 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 2253 transitions. Word has length 66 [2024-11-08 17:16:14,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:14,802 INFO L471 AbstractCegarLoop]: Abstraction has 1744 states and 2253 transitions. [2024-11-08 17:16:14,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 17:16:14,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 2253 transitions. [2024-11-08 17:16:14,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 17:16:14,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:14,805 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:14,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:16:14,806 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:14,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:14,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1430182654, now seen corresponding path program 1 times [2024-11-08 17:16:14,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:14,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507369872] [2024-11-08 17:16:14,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:14,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:14,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:14,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 17:16:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:14,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:16:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:14,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 17:16:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:14,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:16:14,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:14,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 17:16:14,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:14,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:16:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:14,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:14,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:14,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507369872] [2024-11-08 17:16:14,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507369872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:14,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:14,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:16:14,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056174670] [2024-11-08 17:16:14,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:14,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:16:14,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:14,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:16:14,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:16:14,885 INFO L87 Difference]: Start difference. First operand 1744 states and 2253 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 17:16:15,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:15,609 INFO L93 Difference]: Finished difference Result 4698 states and 5994 transitions. [2024-11-08 17:16:15,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 17:16:15,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-08 17:16:15,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:15,626 INFO L225 Difference]: With dead ends: 4698 [2024-11-08 17:16:15,626 INFO L226 Difference]: Without dead ends: 3159 [2024-11-08 17:16:15,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-08 17:16:15,632 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 972 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:15,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 638 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 17:16:15,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2024-11-08 17:16:15,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 2867. [2024-11-08 17:16:15,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2867 states, 2246 states have (on average 1.2747105966162067) internal successors, (2863), 2282 states have internal predecessors, (2863), 313 states have call successors, (313), 249 states have call predecessors, (313), 306 states have return successors, (442), 342 states have call predecessors, (442), 311 states have call successors, (442) [2024-11-08 17:16:15,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2867 states to 2867 states and 3618 transitions. [2024-11-08 17:16:15,876 INFO L78 Accepts]: Start accepts. Automaton has 2867 states and 3618 transitions. Word has length 66 [2024-11-08 17:16:15,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:15,877 INFO L471 AbstractCegarLoop]: Abstraction has 2867 states and 3618 transitions. [2024-11-08 17:16:15,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 17:16:15,878 INFO L276 IsEmpty]: Start isEmpty. Operand 2867 states and 3618 transitions. [2024-11-08 17:16:15,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-08 17:16:15,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:15,881 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:15,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:16:15,881 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:15,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:15,882 INFO L85 PathProgramCache]: Analyzing trace with hash -537101281, now seen corresponding path program 1 times [2024-11-08 17:16:15,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:15,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796622693] [2024-11-08 17:16:15,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:15,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:15,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:15,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 17:16:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:15,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:16:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:15,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 17:16:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:15,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:16:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:15,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 17:16:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:15,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:16:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:15,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:15,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:15,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796622693] [2024-11-08 17:16:15,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796622693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:15,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:15,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:16:15,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057275529] [2024-11-08 17:16:15,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:15,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:16:15,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:15,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:16:15,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:16:15,985 INFO L87 Difference]: Start difference. First operand 2867 states and 3618 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-08 17:16:16,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:16,917 INFO L93 Difference]: Finished difference Result 3641 states and 4546 transitions. [2024-11-08 17:16:16,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 17:16:16,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 73 [2024-11-08 17:16:16,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:16,937 INFO L225 Difference]: With dead ends: 3641 [2024-11-08 17:16:16,937 INFO L226 Difference]: Without dead ends: 3638 [2024-11-08 17:16:16,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:16:16,941 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 1173 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:16,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 835 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 17:16:16,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3638 states. [2024-11-08 17:16:17,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3638 to 3361. [2024-11-08 17:16:17,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3361 states, 2631 states have (on average 1.2675788673508173) internal successors, (3335), 2672 states have internal predecessors, (3335), 363 states have call successors, (363), 293 states have call predecessors, (363), 365 states have return successors, (521), 402 states have call predecessors, (521), 362 states have call successors, (521) [2024-11-08 17:16:17,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3361 states to 3361 states and 4219 transitions. [2024-11-08 17:16:17,249 INFO L78 Accepts]: Start accepts. Automaton has 3361 states and 4219 transitions. Word has length 73 [2024-11-08 17:16:17,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:17,250 INFO L471 AbstractCegarLoop]: Abstraction has 3361 states and 4219 transitions. [2024-11-08 17:16:17,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-08 17:16:17,250 INFO L276 IsEmpty]: Start isEmpty. Operand 3361 states and 4219 transitions. [2024-11-08 17:16:17,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-08 17:16:17,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:17,252 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:17,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:16:17,253 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:17,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:17,253 INFO L85 PathProgramCache]: Analyzing trace with hash 528877884, now seen corresponding path program 1 times [2024-11-08 17:16:17,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:17,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778699464] [2024-11-08 17:16:17,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:17,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:17,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:17,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 17:16:17,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:17,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:16:17,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:17,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 17:16:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:17,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:16:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:17,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 17:16:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:17,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:16:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:17,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:17,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:17,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778699464] [2024-11-08 17:16:17,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778699464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:16:17,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913675263] [2024-11-08 17:16:17,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:17,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:16:17,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 17:16:17,407 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:16:17,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:16:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:17,511 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 17:16:17,524 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:16:17,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:17,789 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:16:17,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:17,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913675263] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:16:17,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:16:17,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2024-11-08 17:16:17,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976926572] [2024-11-08 17:16:17,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:16:17,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:16:17,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:17,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:16:17,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:16:17,900 INFO L87 Difference]: Start difference. First operand 3361 states and 4219 transitions. Second operand has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-08 17:16:20,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:20,058 INFO L93 Difference]: Finished difference Result 7802 states and 9682 transitions. [2024-11-08 17:16:20,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-08 17:16:20,058 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 74 [2024-11-08 17:16:20,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:20,100 INFO L225 Difference]: With dead ends: 7802 [2024-11-08 17:16:20,100 INFO L226 Difference]: Without dead ends: 7799 [2024-11-08 17:16:20,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2024-11-08 17:16:20,107 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 1292 mSDsluCounter, 1482 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 1811 SdHoareTripleChecker+Invalid, 1820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:20,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1356 Valid, 1811 Invalid, 1820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1661 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 17:16:20,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7799 states. [2024-11-08 17:16:20,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7799 to 5151. [2024-11-08 17:16:20,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5151 states, 4035 states have (on average 1.2644361833952913) internal successors, (5102), 4098 states have internal predecessors, (5102), 547 states have call successors, (547), 451 states have call predecessors, (547), 567 states have return successors, (799), 608 states have call predecessors, (799), 546 states have call successors, (799) [2024-11-08 17:16:20,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 6448 transitions. [2024-11-08 17:16:20,695 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 6448 transitions. Word has length 74 [2024-11-08 17:16:20,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:20,695 INFO L471 AbstractCegarLoop]: Abstraction has 5151 states and 6448 transitions. [2024-11-08 17:16:20,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-08 17:16:20,696 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 6448 transitions. [2024-11-08 17:16:20,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-08 17:16:20,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:20,698 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:20,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:16:20,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-08 17:16:20,903 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:20,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:20,903 INFO L85 PathProgramCache]: Analyzing trace with hash 817075679, now seen corresponding path program 2 times [2024-11-08 17:16:20,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:20,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163611805] [2024-11-08 17:16:20,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:20,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:20,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:20,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 17:16:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:20,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:16:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:20,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 17:16:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:20,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:16:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:20,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 17:16:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:20,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:16:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:20,985 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:20,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:20,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163611805] [2024-11-08 17:16:20,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163611805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:20,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:20,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:16:20,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122744705] [2024-11-08 17:16:20,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:20,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:16:20,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:20,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:16:20,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:16:20,988 INFO L87 Difference]: Start difference. First operand 5151 states and 6448 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-08 17:16:21,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:21,934 INFO L93 Difference]: Finished difference Result 7833 states and 9806 transitions. [2024-11-08 17:16:21,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:16:21,935 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 77 [2024-11-08 17:16:21,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:21,959 INFO L225 Difference]: With dead ends: 7833 [2024-11-08 17:16:21,960 INFO L226 Difference]: Without dead ends: 3758 [2024-11-08 17:16:21,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:16:21,972 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 840 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:21,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 738 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 17:16:21,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2024-11-08 17:16:22,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3523. [2024-11-08 17:16:22,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3523 states, 2763 states have (on average 1.247557003257329) internal successors, (3447), 2804 states have internal predecessors, (3447), 379 states have call successors, (379), 307 states have call predecessors, (379), 379 states have return successors, (525), 418 states have call predecessors, (525), 378 states have call successors, (525) [2024-11-08 17:16:22,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3523 states to 3523 states and 4351 transitions. [2024-11-08 17:16:22,432 INFO L78 Accepts]: Start accepts. Automaton has 3523 states and 4351 transitions. Word has length 77 [2024-11-08 17:16:22,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:22,433 INFO L471 AbstractCegarLoop]: Abstraction has 3523 states and 4351 transitions. [2024-11-08 17:16:22,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-08 17:16:22,434 INFO L276 IsEmpty]: Start isEmpty. Operand 3523 states and 4351 transitions. [2024-11-08 17:16:22,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 17:16:22,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:22,438 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:22,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:16:22,438 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:22,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:22,439 INFO L85 PathProgramCache]: Analyzing trace with hash -2123605266, now seen corresponding path program 1 times [2024-11-08 17:16:22,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:22,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530163704] [2024-11-08 17:16:22,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:22,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:22,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:22,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 17:16:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:22,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:16:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:22,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 17:16:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:22,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:16:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:22,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 17:16:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:22,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:16:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:22,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 17:16:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:22,551 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 17:16:22,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:22,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530163704] [2024-11-08 17:16:22,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530163704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:22,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:22,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:16:22,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401968706] [2024-11-08 17:16:22,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:22,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:16:22,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:22,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:16:22,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:16:22,553 INFO L87 Difference]: Start difference. First operand 3523 states and 4351 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 17:16:24,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:24,090 INFO L93 Difference]: Finished difference Result 10395 states and 12738 transitions. [2024-11-08 17:16:24,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 17:16:24,090 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 84 [2024-11-08 17:16:24,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:24,122 INFO L225 Difference]: With dead ends: 10395 [2024-11-08 17:16:24,122 INFO L226 Difference]: Without dead ends: 5758 [2024-11-08 17:16:24,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-08 17:16:24,134 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 754 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:24,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 1489 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 17:16:24,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5758 states. [2024-11-08 17:16:24,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5758 to 5438. [2024-11-08 17:16:24,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 4221 states have (on average 1.222696043591566) internal successors, (5161), 4305 states have internal predecessors, (5161), 583 states have call successors, (583), 481 states have call predecessors, (583), 632 states have return successors, (907), 658 states have call predecessors, (907), 582 states have call successors, (907) [2024-11-08 17:16:24,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 6651 transitions. [2024-11-08 17:16:24,705 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 6651 transitions. Word has length 84 [2024-11-08 17:16:24,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:24,706 INFO L471 AbstractCegarLoop]: Abstraction has 5438 states and 6651 transitions. [2024-11-08 17:16:24,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 17:16:24,706 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 6651 transitions. [2024-11-08 17:16:24,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 17:16:24,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:24,711 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:24,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:16:24,711 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:24,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:24,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1632999677, now seen corresponding path program 1 times [2024-11-08 17:16:24,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:24,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611165581] [2024-11-08 17:16:24,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:24,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:24,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:24,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 17:16:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:24,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:16:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:24,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 17:16:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:24,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 17:16:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:24,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 17:16:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:24,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:16:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:24,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:16:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:24,846 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 17:16:24,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:24,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611165581] [2024-11-08 17:16:24,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611165581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:24,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:24,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:16:24,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500017161] [2024-11-08 17:16:24,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:24,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:16:24,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:24,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:16:24,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:16:24,849 INFO L87 Difference]: Start difference. First operand 5438 states and 6651 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 17:16:26,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:26,535 INFO L93 Difference]: Finished difference Result 9441 states and 11475 transitions. [2024-11-08 17:16:26,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 17:16:26,536 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2024-11-08 17:16:26,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:26,564 INFO L225 Difference]: With dead ends: 9441 [2024-11-08 17:16:26,564 INFO L226 Difference]: Without dead ends: 4848 [2024-11-08 17:16:26,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2024-11-08 17:16:26,581 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 1385 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 1324 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:26,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 1324 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 17:16:26,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4848 states. [2024-11-08 17:16:27,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4848 to 4514. [2024-11-08 17:16:27,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4514 states, 3510 states have (on average 1.215954415954416) internal successors, (4268), 3576 states have internal predecessors, (4268), 484 states have call successors, (484), 396 states have call predecessors, (484), 518 states have return successors, (685), 548 states have call predecessors, (685), 483 states have call successors, (685) [2024-11-08 17:16:27,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4514 states to 4514 states and 5437 transitions. [2024-11-08 17:16:27,077 INFO L78 Accepts]: Start accepts. Automaton has 4514 states and 5437 transitions. Word has length 93 [2024-11-08 17:16:27,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:27,078 INFO L471 AbstractCegarLoop]: Abstraction has 4514 states and 5437 transitions. [2024-11-08 17:16:27,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 17:16:27,078 INFO L276 IsEmpty]: Start isEmpty. Operand 4514 states and 5437 transitions. [2024-11-08 17:16:27,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 17:16:27,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:27,082 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:27,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 17:16:27,082 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:27,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:27,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1615023456, now seen corresponding path program 1 times [2024-11-08 17:16:27,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:27,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347639902] [2024-11-08 17:16:27,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:27,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:27,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:27,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:27,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:16:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:27,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 17:16:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:27,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:16:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:27,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 17:16:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:27,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:27,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:27,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347639902] [2024-11-08 17:16:27,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347639902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:27,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:27,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:16:27,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411009683] [2024-11-08 17:16:27,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:27,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:16:27,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:27,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:16:27,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:16:27,200 INFO L87 Difference]: Start difference. First operand 4514 states and 5437 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 17:16:28,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:28,734 INFO L93 Difference]: Finished difference Result 4964 states and 6134 transitions. [2024-11-08 17:16:28,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:16:28,735 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 3 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 90 [2024-11-08 17:16:28,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:28,758 INFO L225 Difference]: With dead ends: 4964 [2024-11-08 17:16:28,758 INFO L226 Difference]: Without dead ends: 4794 [2024-11-08 17:16:28,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:16:28,765 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 863 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 1193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:28,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 844 Invalid, 1193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 17:16:28,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4794 states. [2024-11-08 17:16:29,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4794 to 4687. [2024-11-08 17:16:29,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4687 states, 3663 states have (on average 1.2287742287742287) internal successors, (4501), 3730 states have internal predecessors, (4501), 497 states have call successors, (497), 402 states have call predecessors, (497), 525 states have return successors, (701), 561 states have call predecessors, (701), 496 states have call successors, (701) [2024-11-08 17:16:29,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4687 states to 4687 states and 5699 transitions. [2024-11-08 17:16:29,368 INFO L78 Accepts]: Start accepts. Automaton has 4687 states and 5699 transitions. Word has length 90 [2024-11-08 17:16:29,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:29,369 INFO L471 AbstractCegarLoop]: Abstraction has 4687 states and 5699 transitions. [2024-11-08 17:16:29,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 17:16:29,369 INFO L276 IsEmpty]: Start isEmpty. Operand 4687 states and 5699 transitions. [2024-11-08 17:16:29,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 17:16:29,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:29,372 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:29,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 17:16:29,373 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:29,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:29,373 INFO L85 PathProgramCache]: Analyzing trace with hash 119080994, now seen corresponding path program 1 times [2024-11-08 17:16:29,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:29,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962119067] [2024-11-08 17:16:29,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:29,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:29,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:29,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:29,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:16:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:29,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 17:16:29,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:29,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:16:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:29,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 17:16:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:29,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:29,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:29,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962119067] [2024-11-08 17:16:29,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962119067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:29,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:29,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:16:29,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497367666] [2024-11-08 17:16:29,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:29,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:16:29,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:29,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:16:29,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:16:29,510 INFO L87 Difference]: Start difference. First operand 4687 states and 5699 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 17:16:31,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:31,613 INFO L93 Difference]: Finished difference Result 5367 states and 6746 transitions. [2024-11-08 17:16:31,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 17:16:31,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 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 90 [2024-11-08 17:16:31,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:31,637 INFO L225 Difference]: With dead ends: 5367 [2024-11-08 17:16:31,637 INFO L226 Difference]: Without dead ends: 5024 [2024-11-08 17:16:31,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 17:16:31,642 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 864 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:31,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 1446 Invalid, 1803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 17:16:31,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5024 states. [2024-11-08 17:16:32,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5024 to 4849. [2024-11-08 17:16:32,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4849 states, 3805 states have (on average 1.2383705650459922) internal successors, (4712), 3873 states have internal predecessors, (4712), 510 states have call successors, (510), 408 states have call predecessors, (510), 532 states have return successors, (716), 575 states have call predecessors, (716), 509 states have call successors, (716) [2024-11-08 17:16:32,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4849 states to 4849 states and 5938 transitions. [2024-11-08 17:16:32,374 INFO L78 Accepts]: Start accepts. Automaton has 4849 states and 5938 transitions. Word has length 90 [2024-11-08 17:16:32,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:32,374 INFO L471 AbstractCegarLoop]: Abstraction has 4849 states and 5938 transitions. [2024-11-08 17:16:32,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 17:16:32,375 INFO L276 IsEmpty]: Start isEmpty. Operand 4849 states and 5938 transitions. [2024-11-08 17:16:32,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 17:16:32,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:32,379 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:32,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 17:16:32,379 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:32,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:32,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1006303840, now seen corresponding path program 1 times [2024-11-08 17:16:32,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:32,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353077474] [2024-11-08 17:16:32,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:32,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:32,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:32,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:16:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:32,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 17:16:32,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:32,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:16:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:32,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 17:16:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:32,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:32,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:32,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353077474] [2024-11-08 17:16:32,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353077474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:32,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:32,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:16:32,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478413650] [2024-11-08 17:16:32,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:32,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:16:32,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:32,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:16:32,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:16:32,519 INFO L87 Difference]: Start difference. First operand 4849 states and 5938 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 17:16:34,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:34,591 INFO L93 Difference]: Finished difference Result 5960 states and 7643 transitions. [2024-11-08 17:16:34,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 17:16:34,592 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 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 90 [2024-11-08 17:16:34,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:34,616 INFO L225 Difference]: With dead ends: 5960 [2024-11-08 17:16:34,616 INFO L226 Difference]: Without dead ends: 5455 [2024-11-08 17:16:34,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 17:16:34,623 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 862 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 1720 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:34,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 1444 Invalid, 1801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1720 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 17:16:34,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5455 states. [2024-11-08 17:16:35,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5455 to 5174. [2024-11-08 17:16:35,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5174 states, 4090 states have (on average 1.2555012224938875) internal successors, (5135), 4160 states have internal predecessors, (5135), 536 states have call successors, (536), 420 states have call predecessors, (536), 546 states have return successors, (750), 603 states have call predecessors, (750), 535 states have call successors, (750) [2024-11-08 17:16:35,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5174 states to 5174 states and 6421 transitions. [2024-11-08 17:16:35,342 INFO L78 Accepts]: Start accepts. Automaton has 5174 states and 6421 transitions. Word has length 90 [2024-11-08 17:16:35,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:35,342 INFO L471 AbstractCegarLoop]: Abstraction has 5174 states and 6421 transitions. [2024-11-08 17:16:35,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 17:16:35,343 INFO L276 IsEmpty]: Start isEmpty. Operand 5174 states and 6421 transitions. [2024-11-08 17:16:35,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 17:16:35,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:35,347 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:35,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 17:16:35,348 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:35,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:35,348 INFO L85 PathProgramCache]: Analyzing trace with hash -904738718, now seen corresponding path program 1 times [2024-11-08 17:16:35,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:35,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99661478] [2024-11-08 17:16:35,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:35,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:35,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:35,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:35,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:16:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:35,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 17:16:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:35,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:16:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:35,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 17:16:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:35,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:35,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:35,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99661478] [2024-11-08 17:16:35,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99661478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:35,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:35,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:16:35,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796345938] [2024-11-08 17:16:35,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:35,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:16:35,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:35,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:16:35,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:16:35,497 INFO L87 Difference]: Start difference. First operand 5174 states and 6421 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 17:16:37,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:37,749 INFO L93 Difference]: Finished difference Result 7105 states and 9370 transitions. [2024-11-08 17:16:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 17:16:37,750 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 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 90 [2024-11-08 17:16:37,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:37,779 INFO L225 Difference]: With dead ends: 7105 [2024-11-08 17:16:37,780 INFO L226 Difference]: Without dead ends: 6275 [2024-11-08 17:16:37,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 17:16:37,787 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 858 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 1711 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:37,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 1444 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1711 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 17:16:37,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6275 states. [2024-11-08 17:16:38,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6275 to 5825. [2024-11-08 17:16:38,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5825 states, 4661 states have (on average 1.2832010298219265) internal successors, (5981), 4735 states have internal predecessors, (5981), 588 states have call successors, (588), 444 states have call predecessors, (588), 574 states have return successors, (824), 659 states have call predecessors, (824), 587 states have call successors, (824) [2024-11-08 17:16:38,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5825 states to 5825 states and 7393 transitions. [2024-11-08 17:16:38,691 INFO L78 Accepts]: Start accepts. Automaton has 5825 states and 7393 transitions. Word has length 90 [2024-11-08 17:16:38,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:38,694 INFO L471 AbstractCegarLoop]: Abstraction has 5825 states and 7393 transitions. [2024-11-08 17:16:38,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 17:16:38,694 INFO L276 IsEmpty]: Start isEmpty. Operand 5825 states and 7393 transitions. [2024-11-08 17:16:38,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 17:16:38,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:38,700 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:38,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 17:16:38,701 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:38,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:38,701 INFO L85 PathProgramCache]: Analyzing trace with hash -827837920, now seen corresponding path program 1 times [2024-11-08 17:16:38,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:38,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951482157] [2024-11-08 17:16:38,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:38,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:38,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:38,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:38,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:16:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:38,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 17:16:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:38,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:16:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:38,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 17:16:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:38,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:38,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:38,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951482157] [2024-11-08 17:16:38,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951482157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:38,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:38,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:16:38,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287071973] [2024-11-08 17:16:38,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:38,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:16:38,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:38,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:16:38,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:16:38,830 INFO L87 Difference]: Start difference. First operand 5825 states and 7393 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 17:16:40,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:40,832 INFO L93 Difference]: Finished difference Result 9394 states and 12840 transitions. [2024-11-08 17:16:40,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 17:16:40,833 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 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 90 [2024-11-08 17:16:40,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:40,870 INFO L225 Difference]: With dead ends: 9394 [2024-11-08 17:16:40,870 INFO L226 Difference]: Without dead ends: 7913 [2024-11-08 17:16:40,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 17:16:40,882 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 860 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 1697 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 1778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:40,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 1444 Invalid, 1778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1697 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 17:16:40,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7913 states. [2024-11-08 17:16:41,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7913 to 7132. [2024-11-08 17:16:41,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7132 states, 5808 states have (on average 1.3221418732782368) internal successors, (7679), 5890 states have internal predecessors, (7679), 692 states have call successors, (692), 492 states have call predecessors, (692), 630 states have return successors, (990), 771 states have call predecessors, (990), 691 states have call successors, (990) [2024-11-08 17:16:41,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7132 states to 7132 states and 9361 transitions. [2024-11-08 17:16:41,722 INFO L78 Accepts]: Start accepts. Automaton has 7132 states and 9361 transitions. Word has length 90 [2024-11-08 17:16:41,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:41,723 INFO L471 AbstractCegarLoop]: Abstraction has 7132 states and 9361 transitions. [2024-11-08 17:16:41,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 17:16:41,723 INFO L276 IsEmpty]: Start isEmpty. Operand 7132 states and 9361 transitions. [2024-11-08 17:16:41,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 17:16:41,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:41,730 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:41,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 17:16:41,730 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:41,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:41,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1795188574, now seen corresponding path program 1 times [2024-11-08 17:16:41,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:41,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43717354] [2024-11-08 17:16:41,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:41,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:41,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:41,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:16:41,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:41,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 17:16:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:41,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:16:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:41,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 17:16:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:41,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:41,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:41,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43717354] [2024-11-08 17:16:41,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43717354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:41,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:41,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:16:41,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277046785] [2024-11-08 17:16:41,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:41,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:16:41,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:41,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:16:41,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:16:41,859 INFO L87 Difference]: Start difference. First operand 7132 states and 9361 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 17:16:43,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:43,956 INFO L93 Difference]: Finished difference Result 14804 states and 21076 transitions. [2024-11-08 17:16:43,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:16:43,957 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 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 90 [2024-11-08 17:16:43,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:44,005 INFO L225 Difference]: With dead ends: 14804 [2024-11-08 17:16:44,006 INFO L226 Difference]: Without dead ends: 12016 [2024-11-08 17:16:44,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:16:44,022 INFO L432 NwaCegarLoop]: 333 mSDtfsCounter, 990 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:44,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 1430 Invalid, 1745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1661 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 17:16:44,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12016 states. [2024-11-08 17:16:45,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12016 to 9648. [2024-11-08 17:16:45,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9648 states, 8020 states have (on average 1.3674563591022444) internal successors, (10967), 8118 states have internal predecessors, (10967), 884 states have call successors, (884), 588 states have call predecessors, (884), 742 states have return successors, (1360), 979 states have call predecessors, (1360), 883 states have call successors, (1360) [2024-11-08 17:16:45,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9648 states to 9648 states and 13211 transitions. [2024-11-08 17:16:45,366 INFO L78 Accepts]: Start accepts. Automaton has 9648 states and 13211 transitions. Word has length 90 [2024-11-08 17:16:45,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:45,367 INFO L471 AbstractCegarLoop]: Abstraction has 9648 states and 13211 transitions. [2024-11-08 17:16:45,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 17:16:45,367 INFO L276 IsEmpty]: Start isEmpty. Operand 9648 states and 13211 transitions. [2024-11-08 17:16:45,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 17:16:45,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:45,374 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:45,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 17:16:45,375 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:45,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:45,375 INFO L85 PathProgramCache]: Analyzing trace with hash 2007152548, now seen corresponding path program 1 times [2024-11-08 17:16:45,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:45,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762294446] [2024-11-08 17:16:45,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:45,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:45,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:45,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:16:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:45,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 17:16:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:45,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:16:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:45,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 17:16:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:45,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:45,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:45,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762294446] [2024-11-08 17:16:45,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762294446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:45,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:45,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:16:45,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480361792] [2024-11-08 17:16:45,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:45,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:16:45,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:45,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:16:45,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:16:45,505 INFO L87 Difference]: Start difference. First operand 9648 states and 13211 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 17:16:48,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:48,258 INFO L93 Difference]: Finished difference Result 24010 states and 35288 transitions. [2024-11-08 17:16:48,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:16:48,259 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 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 90 [2024-11-08 17:16:48,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:48,332 INFO L225 Difference]: With dead ends: 24010 [2024-11-08 17:16:48,333 INFO L226 Difference]: Without dead ends: 18706 [2024-11-08 17:16:48,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:16:48,355 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 878 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 1847 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 898 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:48,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [898 Valid, 1434 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1847 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 17:16:48,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18706 states. [2024-11-08 17:16:49,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18706 to 14741. [2024-11-08 17:16:49,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14741 states, 12521 states have (on average 1.4121076591326571) internal successors, (17681), 12651 states have internal predecessors, (17681), 1252 states have call successors, (1252), 780 states have call predecessors, (1252), 966 states have return successors, (2246), 1379 states have call predecessors, (2246), 1251 states have call successors, (2246) [2024-11-08 17:16:49,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14741 states to 14741 states and 21179 transitions. [2024-11-08 17:16:49,768 INFO L78 Accepts]: Start accepts. Automaton has 14741 states and 21179 transitions. Word has length 90 [2024-11-08 17:16:49,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:49,768 INFO L471 AbstractCegarLoop]: Abstraction has 14741 states and 21179 transitions. [2024-11-08 17:16:49,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 17:16:49,768 INFO L276 IsEmpty]: Start isEmpty. Operand 14741 states and 21179 transitions. [2024-11-08 17:16:49,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 17:16:49,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:49,781 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:49,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 17:16:49,781 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:49,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:49,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1333874590, now seen corresponding path program 1 times [2024-11-08 17:16:49,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:49,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765186343] [2024-11-08 17:16:49,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:49,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:49,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:49,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:16:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:49,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 17:16:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:49,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:16:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:49,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 17:16:49,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:49,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:49,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:49,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765186343] [2024-11-08 17:16:49,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765186343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:49,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:49,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:16:49,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94131802] [2024-11-08 17:16:49,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:49,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:16:49,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:49,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:16:49,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:16:49,901 INFO L87 Difference]: Start difference. First operand 14741 states and 21179 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 17:16:53,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:16:53,513 INFO L93 Difference]: Finished difference Result 42037 states and 63766 transitions. [2024-11-08 17:16:53,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:16:53,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 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 90 [2024-11-08 17:16:53,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:16:53,640 INFO L225 Difference]: With dead ends: 42037 [2024-11-08 17:16:53,641 INFO L226 Difference]: Without dead ends: 31640 [2024-11-08 17:16:53,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:16:53,679 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 958 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:16:53,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [984 Valid, 1049 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 17:16:53,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31640 states. [2024-11-08 17:16:55,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31640 to 24894. [2024-11-08 17:16:55,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24894 states, 21522 states have (on average 1.446845088746399) internal successors, (31139), 21716 states have internal predecessors, (31139), 1956 states have call successors, (1956), 1164 states have call predecessors, (1956), 1414 states have return successors, (4472), 2147 states have call predecessors, (4472), 1955 states have call successors, (4472) [2024-11-08 17:16:55,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24894 states to 24894 states and 37567 transitions. [2024-11-08 17:16:55,767 INFO L78 Accepts]: Start accepts. Automaton has 24894 states and 37567 transitions. Word has length 90 [2024-11-08 17:16:55,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:16:55,767 INFO L471 AbstractCegarLoop]: Abstraction has 24894 states and 37567 transitions. [2024-11-08 17:16:55,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 17:16:55,767 INFO L276 IsEmpty]: Start isEmpty. Operand 24894 states and 37567 transitions. [2024-11-08 17:16:55,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 17:16:55,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:16:55,787 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:16:55,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 17:16:55,788 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:16:55,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:16:55,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1744938980, now seen corresponding path program 1 times [2024-11-08 17:16:55,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:16:55,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199054379] [2024-11-08 17:16:55,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:16:55,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:16:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:55,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:16:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:55,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:16:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:55,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 17:16:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:55,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:16:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:55,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 17:16:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:16:55,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:16:55,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:16:55,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199054379] [2024-11-08 17:16:55,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199054379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:16:55,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:16:55,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:16:55,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642369832] [2024-11-08 17:16:55,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:16:55,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:16:55,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:16:55,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:16:55,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:16:55,921 INFO L87 Difference]: Start difference. First operand 24894 states and 37567 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 17:17:01,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:17:01,423 INFO L93 Difference]: Finished difference Result 76908 states and 120780 transitions. [2024-11-08 17:17:01,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:17:01,423 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 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 90 [2024-11-08 17:17:01,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:17:01,680 INFO L225 Difference]: With dead ends: 76908 [2024-11-08 17:17:01,680 INFO L226 Difference]: Without dead ends: 56358 [2024-11-08 17:17:01,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:17:01,748 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 868 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 1621 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:17:01,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 1434 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1621 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 17:17:01,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56358 states. [2024-11-08 17:17:06,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56358 to 45135. [2024-11-08 17:17:06,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45135 states, 39523 states have (on average 1.4704602383422312) internal successors, (58117), 39845 states have internal predecessors, (58117), 3300 states have call successors, (3300), 1932 states have call predecessors, (3300), 2310 states have return successors, (10318), 3619 states have call predecessors, (10318), 3299 states have call successors, (10318) [2024-11-08 17:17:06,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45135 states to 45135 states and 71735 transitions. [2024-11-08 17:17:06,359 INFO L78 Accepts]: Start accepts. Automaton has 45135 states and 71735 transitions. Word has length 90 [2024-11-08 17:17:06,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:17:06,360 INFO L471 AbstractCegarLoop]: Abstraction has 45135 states and 71735 transitions. [2024-11-08 17:17:06,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 17:17:06,360 INFO L276 IsEmpty]: Start isEmpty. Operand 45135 states and 71735 transitions. [2024-11-08 17:17:06,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 17:17:06,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:17:06,392 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:17:06,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 17:17:06,392 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:17:06,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:17:06,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1012971554, now seen corresponding path program 1 times [2024-11-08 17:17:06,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:17:06,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198956254] [2024-11-08 17:17:06,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:17:06,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:17:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:17:06,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 17:17:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:17:06,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:17:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:17:06,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 17:17:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:17:06,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:17:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:17:06,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 17:17:06,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:17:06,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:17:06,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:17:06,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198956254] [2024-11-08 17:17:06,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198956254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:17:06,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:17:06,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:17:06,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621847798] [2024-11-08 17:17:06,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:17:06,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:17:06,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:17:06,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:17:06,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:17:06,517 INFO L87 Difference]: Start difference. First operand 45135 states and 71735 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 17:17:11,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:17:11,521 INFO L93 Difference]: Finished difference Result 95725 states and 153778 transitions. [2024-11-08 17:17:11,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:17:11,521 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 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 90 [2024-11-08 17:17:11,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:17:11,729 INFO L225 Difference]: With dead ends: 95725 [2024-11-08 17:17:11,730 INFO L226 Difference]: Without dead ends: 54935 [2024-11-08 17:17:11,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:17:11,832 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 323 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:17:11,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 1172 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 17:17:11,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54935 states.