./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/transmitter.04.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4835cf2-02d5-4626-8b5f-458d893dc2db/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4835cf2-02d5-4626-8b5f-458d893dc2db/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4835cf2-02d5-4626-8b5f-458d893dc2db/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4835cf2-02d5-4626-8b5f-458d893dc2db/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/transmitter.04.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4835cf2-02d5-4626-8b5f-458d893dc2db/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4835cf2-02d5-4626-8b5f-458d893dc2db/bin/uautomizer-verify-aQ6SnzHsRB --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 1de07d37d630bd073064bf436fb9512b72ab982b0eaf3fcb1582f689c57482fa --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:23:08,490 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:23:08,602 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4835cf2-02d5-4626-8b5f-458d893dc2db/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:23:08,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:23:08,616 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:23:08,668 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:23:08,670 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:23:08,670 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:23:08,671 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:23:08,671 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:23:08,672 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:23:08,673 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:23:08,674 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:23:08,674 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:23:08,674 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:23:08,675 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:23:08,675 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:23:08,675 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:23:08,675 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:23:08,675 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:23:08,675 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:23:08,675 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:23:08,675 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:23:08,675 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:23:08,676 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:23:08,676 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:23:08,677 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:23:08,677 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:23:08,677 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:23:08,677 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:23:08,677 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:23:08,678 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:23:08,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:23:08,679 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:23:08,679 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:23:08,679 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:23:08,679 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:23:08,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:23:08,680 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:23:08,680 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:23:08,680 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:23:08,680 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:23:08,680 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:23:08,681 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:23:08,681 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:23:08,681 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:23:08,681 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:23:08,681 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:23:08,681 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4835cf2-02d5-4626-8b5f-458d893dc2db/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 1de07d37d630bd073064bf436fb9512b72ab982b0eaf3fcb1582f689c57482fa [2024-11-28 02:23:09,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:23:09,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:23:09,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:23:09,051 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:23:09,051 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:23:09,052 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4835cf2-02d5-4626-8b5f-458d893dc2db/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/systemc/transmitter.04.cil.c [2024-11-28 02:23:12,537 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4835cf2-02d5-4626-8b5f-458d893dc2db/bin/uautomizer-verify-aQ6SnzHsRB/data/06abc8fa0/38211e098e7f40648960af02b4fbfbc6/FLAG3cd20c659 [2024-11-28 02:23:12,870 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:23:12,871 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4835cf2-02d5-4626-8b5f-458d893dc2db/sv-benchmarks/c/systemc/transmitter.04.cil.c [2024-11-28 02:23:12,884 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4835cf2-02d5-4626-8b5f-458d893dc2db/bin/uautomizer-verify-aQ6SnzHsRB/data/06abc8fa0/38211e098e7f40648960af02b4fbfbc6/FLAG3cd20c659 [2024-11-28 02:23:12,903 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4835cf2-02d5-4626-8b5f-458d893dc2db/bin/uautomizer-verify-aQ6SnzHsRB/data/06abc8fa0/38211e098e7f40648960af02b4fbfbc6 [2024-11-28 02:23:12,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:23:12,907 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:23:12,909 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:23:12,909 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:23:12,915 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:23:12,916 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:23:12" (1/1) ... [2024-11-28 02:23:12,917 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47bd2893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:23:12, skipping insertion in model container [2024-11-28 02:23:12,917 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:23:12" (1/1) ... [2024-11-28 02:23:12,954 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:23:13,123 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4835cf2-02d5-4626-8b5f-458d893dc2db/sv-benchmarks/c/systemc/transmitter.04.cil.c[706,719] [2024-11-28 02:23:13,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:23:13,267 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:23:13,282 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4835cf2-02d5-4626-8b5f-458d893dc2db/sv-benchmarks/c/systemc/transmitter.04.cil.c[706,719] [2024-11-28 02:23:13,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:23:13,399 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:23:13,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:23:13 WrapperNode [2024-11-28 02:23:13,401 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:23:13,403 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:23:13,403 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:23:13,403 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:23:13,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:23:13" (1/1) ... [2024-11-28 02:23:13,437 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:23:13" (1/1) ... [2024-11-28 02:23:13,480 INFO L138 Inliner]: procedures = 36, calls = 42, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 379 [2024-11-28 02:23:13,480 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:23:13,481 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:23:13,481 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:23:13,481 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:23:13,493 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:23:13" (1/1) ... [2024-11-28 02:23:13,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:23:13" (1/1) ... [2024-11-28 02:23:13,500 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:23:13" (1/1) ... [2024-11-28 02:23:13,527 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]. [2024-11-28 02:23:13,527 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:23:13" (1/1) ... [2024-11-28 02:23:13,527 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:23:13" (1/1) ... [2024-11-28 02:23:13,539 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:23:13" (1/1) ... [2024-11-28 02:23:13,540 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:23:13" (1/1) ... [2024-11-28 02:23:13,555 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:23:13" (1/1) ... [2024-11-28 02:23:13,557 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:23:13" (1/1) ... [2024-11-28 02:23:13,558 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:23:13" (1/1) ... [2024-11-28 02:23:13,567 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:23:13,568 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:23:13,568 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:23:13,568 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:23:13,569 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:23:13" (1/1) ... [2024-11-28 02:23:13,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:23:13,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4835cf2-02d5-4626-8b5f-458d893dc2db/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:23:13,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4835cf2-02d5-4626-8b5f-458d893dc2db/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:23:13,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4835cf2-02d5-4626-8b5f-458d893dc2db/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:23:13,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:23:13,645 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-28 02:23:13,645 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-28 02:23:13,645 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-28 02:23:13,645 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-28 02:23:13,645 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-28 02:23:13,645 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-28 02:23:13,645 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-28 02:23:13,645 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-28 02:23:13,646 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-28 02:23:13,646 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-28 02:23:13,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:23:13,646 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-28 02:23:13,646 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-28 02:23:13,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:23:13,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:23:13,766 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:23:13,769 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:23:14,431 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-11-28 02:23:14,431 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:23:14,455 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:23:14,459 INFO L312 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-28 02:23:14,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:23:14 BoogieIcfgContainer [2024-11-28 02:23:14,459 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:23:14,463 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:23:14,466 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:23:14,475 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:23:14,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:23:12" (1/3) ... [2024-11-28 02:23:14,476 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7190b81e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:23:14, skipping insertion in model container [2024-11-28 02:23:14,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:23:13" (2/3) ... [2024-11-28 02:23:14,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7190b81e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:23:14, skipping insertion in model container [2024-11-28 02:23:14,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:23:14" (3/3) ... [2024-11-28 02:23:14,479 INFO L128 eAbstractionObserver]: Analyzing ICFG transmitter.04.cil.c [2024-11-28 02:23:14,505 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:23:14,509 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG transmitter.04.cil.c that has 7 procedures, 175 locations, 1 initial locations, 8 loop locations, and 1 error locations. [2024-11-28 02:23:14,611 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:23:14,628 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;@41f1b63c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:23:14,628 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:23:14,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 175 states, 151 states have (on average 1.609271523178808) internal successors, (243), 152 states have internal predecessors, (243), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 02:23:14,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:23:14,675 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:14,676 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:14,676 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:23:14,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:14,683 INFO L85 PathProgramCache]: Analyzing trace with hash 898880271, now seen corresponding path program 1 times [2024-11-28 02:23:14,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:14,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929751615] [2024-11-28 02:23:14,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:14,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:15,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:15,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:15,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929751615] [2024-11-28 02:23:15,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929751615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:15,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:15,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:23:15,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361194180] [2024-11-28 02:23:15,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:15,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:23:15,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:15,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:23:15,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:23:15,524 INFO L87 Difference]: Start difference. First operand has 175 states, 151 states have (on average 1.609271523178808) internal successors, (243), 152 states have internal predecessors, (243), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:16,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:16,344 INFO L93 Difference]: Finished difference Result 513 states and 828 transitions. [2024-11-28 02:23:16,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:23:16,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 89 [2024-11-28 02:23:16,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:16,373 INFO L225 Difference]: With dead ends: 513 [2024-11-28 02:23:16,374 INFO L226 Difference]: Without dead ends: 342 [2024-11-28 02:23:16,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:23:16,389 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 452 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:16,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 696 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:23:16,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-28 02:23:16,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 329. [2024-11-28 02:23:16,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 286 states have (on average 1.520979020979021) internal successors, (435), 288 states have internal predecessors, (435), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2024-11-28 02:23:16,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 494 transitions. [2024-11-28 02:23:16,521 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 494 transitions. Word has length 89 [2024-11-28 02:23:16,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:16,522 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 494 transitions. [2024-11-28 02:23:16,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:16,523 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 494 transitions. [2024-11-28 02:23:16,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:23:16,528 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:16,529 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:16,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:23:16,529 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:23:16,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:16,530 INFO L85 PathProgramCache]: Analyzing trace with hash 180375598, now seen corresponding path program 1 times [2024-11-28 02:23:16,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:16,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118459632] [2024-11-28 02:23:16,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:16,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:16,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:16,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:16,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118459632] [2024-11-28 02:23:16,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118459632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:16,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:16,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:23:16,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167750923] [2024-11-28 02:23:16,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:16,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:23:16,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:16,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:23:16,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:23:16,950 INFO L87 Difference]: Start difference. First operand 329 states and 494 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:18,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:18,094 INFO L93 Difference]: Finished difference Result 879 states and 1330 transitions. [2024-11-28 02:23:18,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:23:18,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 89 [2024-11-28 02:23:18,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:18,104 INFO L225 Difference]: With dead ends: 879 [2024-11-28 02:23:18,106 INFO L226 Difference]: Without dead ends: 562 [2024-11-28 02:23:18,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:23:18,108 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 486 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1255 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:18,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 1255 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 02:23:18,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-28 02:23:18,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 478. [2024-11-28 02:23:18,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 416 states have (on average 1.5120192307692308) internal successors, (629), 419 states have internal predecessors, (629), 41 states have call successors, (41), 18 states have call predecessors, (41), 20 states have return successors, (45), 42 states have call predecessors, (45), 41 states have call successors, (45) [2024-11-28 02:23:18,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 715 transitions. [2024-11-28 02:23:18,174 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 715 transitions. Word has length 89 [2024-11-28 02:23:18,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:18,175 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 715 transitions. [2024-11-28 02:23:18,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:18,175 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 715 transitions. [2024-11-28 02:23:18,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:23:18,183 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:18,183 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:18,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:23:18,184 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:23:18,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:18,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1067598444, now seen corresponding path program 1 times [2024-11-28 02:23:18,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:18,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182681075] [2024-11-28 02:23:18,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:18,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:18,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:18,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:18,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182681075] [2024-11-28 02:23:18,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182681075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:18,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:18,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:23:18,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474192698] [2024-11-28 02:23:18,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:18,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:23:18,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:18,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:23:18,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:23:18,510 INFO L87 Difference]: Start difference. First operand 478 states and 715 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:19,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:19,507 INFO L93 Difference]: Finished difference Result 1345 states and 2030 transitions. [2024-11-28 02:23:19,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:23:19,507 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 89 [2024-11-28 02:23:19,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:19,515 INFO L225 Difference]: With dead ends: 1345 [2024-11-28 02:23:19,515 INFO L226 Difference]: Without dead ends: 879 [2024-11-28 02:23:19,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:23:19,519 INFO L435 NwaCegarLoop]: 317 mSDtfsCounter, 481 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:19,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 1239 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:23:19,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2024-11-28 02:23:19,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 791. [2024-11-28 02:23:19,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 689 states have (on average 1.509433962264151) internal successors, (1040), 696 states have internal predecessors, (1040), 65 states have call successors, (65), 30 states have call predecessors, (65), 36 states have return successors, (81), 68 states have call predecessors, (81), 65 states have call successors, (81) [2024-11-28 02:23:19,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1186 transitions. [2024-11-28 02:23:19,657 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1186 transitions. Word has length 89 [2024-11-28 02:23:19,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:19,658 INFO L471 AbstractCegarLoop]: Abstraction has 791 states and 1186 transitions. [2024-11-28 02:23:19,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:19,658 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1186 transitions. [2024-11-28 02:23:19,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:23:19,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:19,664 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:19,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:23:19,665 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:23:19,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:19,669 INFO L85 PathProgramCache]: Analyzing trace with hash -843444114, now seen corresponding path program 1 times [2024-11-28 02:23:19,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:19,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100766724] [2024-11-28 02:23:19,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:19,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:19,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:19,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:19,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100766724] [2024-11-28 02:23:19,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100766724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:19,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:19,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:23:19,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843063361] [2024-11-28 02:23:19,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:19,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:23:19,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:19,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:23:19,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:23:19,962 INFO L87 Difference]: Start difference. First operand 791 states and 1186 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:20,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:20,947 INFO L93 Difference]: Finished difference Result 2332 states and 3543 transitions. [2024-11-28 02:23:20,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:23:20,948 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 89 [2024-11-28 02:23:20,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:20,967 INFO L225 Difference]: With dead ends: 2332 [2024-11-28 02:23:20,968 INFO L226 Difference]: Without dead ends: 1553 [2024-11-28 02:23:20,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:23:20,974 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 494 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:20,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 864 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:23:20,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2024-11-28 02:23:21,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1456. [2024-11-28 02:23:21,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1268 states have (on average 1.5141955835962144) internal successors, (1920), 1289 states have internal predecessors, (1920), 113 states have call successors, (113), 54 states have call predecessors, (113), 74 states have return successors, (177), 120 states have call predecessors, (177), 113 states have call successors, (177) [2024-11-28 02:23:21,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 2210 transitions. [2024-11-28 02:23:21,182 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 2210 transitions. Word has length 89 [2024-11-28 02:23:21,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:21,184 INFO L471 AbstractCegarLoop]: Abstraction has 1456 states and 2210 transitions. [2024-11-28 02:23:21,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:21,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 2210 transitions. [2024-11-28 02:23:21,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:23:21,190 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:21,190 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:21,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:23:21,191 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:23:21,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:21,192 INFO L85 PathProgramCache]: Analyzing trace with hash -766543316, now seen corresponding path program 1 times [2024-11-28 02:23:21,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:21,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547897818] [2024-11-28 02:23:21,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:21,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:21,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:21,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:21,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:21,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547897818] [2024-11-28 02:23:21,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547897818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:21,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:21,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:23:21,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496711737] [2024-11-28 02:23:21,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:21,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:23:21,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:21,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:23:21,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:23:21,438 INFO L87 Difference]: Start difference. First operand 1456 states and 2210 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:22,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:22,612 INFO L93 Difference]: Finished difference Result 4443 states and 6885 transitions. [2024-11-28 02:23:22,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:23:22,613 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 89 [2024-11-28 02:23:22,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:22,632 INFO L225 Difference]: With dead ends: 4443 [2024-11-28 02:23:22,632 INFO L226 Difference]: Without dead ends: 2999 [2024-11-28 02:23:22,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:23:22,638 INFO L435 NwaCegarLoop]: 311 mSDtfsCounter, 471 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:22,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 1215 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:23:22,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2024-11-28 02:23:22,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 2885. [2024-11-28 02:23:22,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2885 states, 2507 states have (on average 1.523733546071001) internal successors, (3820), 2574 states have internal predecessors, (3820), 209 states have call successors, (209), 102 states have call predecessors, (209), 168 states have return successors, (465), 224 states have call predecessors, (465), 209 states have call successors, (465) [2024-11-28 02:23:22,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2885 states to 2885 states and 4494 transitions. [2024-11-28 02:23:22,994 INFO L78 Accepts]: Start accepts. Automaton has 2885 states and 4494 transitions. Word has length 89 [2024-11-28 02:23:22,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:22,995 INFO L471 AbstractCegarLoop]: Abstraction has 2885 states and 4494 transitions. [2024-11-28 02:23:22,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:22,996 INFO L276 IsEmpty]: Start isEmpty. Operand 2885 states and 4494 transitions. [2024-11-28 02:23:23,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:23:23,006 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:23,006 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:23,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:23:23,006 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:23:23,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:23,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1733893970, now seen corresponding path program 1 times [2024-11-28 02:23:23,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:23,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86372480] [2024-11-28 02:23:23,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:23,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:23,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:23,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:23,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86372480] [2024-11-28 02:23:23,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86372480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:23,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:23,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:23:23,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291851150] [2024-11-28 02:23:23,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:23,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:23:23,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:23,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:23:23,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:23:23,224 INFO L87 Difference]: Start difference. First operand 2885 states and 4494 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:24,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:24,639 INFO L93 Difference]: Finished difference Result 9418 states and 15104 transitions. [2024-11-28 02:23:24,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:23:24,640 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 89 [2024-11-28 02:23:24,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:24,690 INFO L225 Difference]: With dead ends: 9418 [2024-11-28 02:23:24,690 INFO L226 Difference]: Without dead ends: 6545 [2024-11-28 02:23:24,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:23:24,703 INFO L435 NwaCegarLoop]: 302 mSDtfsCounter, 499 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:24,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 1186 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:23:24,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6545 states. [2024-11-28 02:23:25,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6545 to 5938. [2024-11-28 02:23:25,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5938 states, 5142 states have (on average 1.5371450797355115) internal successors, (7904), 5355 states have internal predecessors, (7904), 385 states have call successors, (385), 198 states have call predecessors, (385), 410 states have return successors, (1409), 416 states have call predecessors, (1409), 385 states have call successors, (1409) [2024-11-28 02:23:25,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5938 states to 5938 states and 9698 transitions. [2024-11-28 02:23:25,293 INFO L78 Accepts]: Start accepts. Automaton has 5938 states and 9698 transitions. Word has length 89 [2024-11-28 02:23:25,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:25,294 INFO L471 AbstractCegarLoop]: Abstraction has 5938 states and 9698 transitions. [2024-11-28 02:23:25,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:25,294 INFO L276 IsEmpty]: Start isEmpty. Operand 5938 states and 9698 transitions. [2024-11-28 02:23:25,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:23:25,307 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:25,307 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:25,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:23:25,308 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:23:25,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:25,308 INFO L85 PathProgramCache]: Analyzing trace with hash 174563820, now seen corresponding path program 1 times [2024-11-28 02:23:25,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:25,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322768083] [2024-11-28 02:23:25,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:25,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:25,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:25,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:25,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322768083] [2024-11-28 02:23:25,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322768083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:25,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:25,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:23:25,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010298984] [2024-11-28 02:23:25,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:25,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:23:25,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:25,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:23:25,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:23:25,471 INFO L87 Difference]: Start difference. First operand 5938 states and 9698 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:27,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:27,384 INFO L93 Difference]: Finished difference Result 19381 states and 33246 transitions. [2024-11-28 02:23:27,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:23:27,384 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 89 [2024-11-28 02:23:27,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:27,496 INFO L225 Difference]: With dead ends: 19381 [2024-11-28 02:23:27,497 INFO L226 Difference]: Without dead ends: 13455 [2024-11-28 02:23:27,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:23:27,522 INFO L435 NwaCegarLoop]: 299 mSDtfsCounter, 535 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:27,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 1174 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:23:27,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13455 states. [2024-11-28 02:23:28,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13455 to 12563. [2024-11-28 02:23:28,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12563 states, 10785 states have (on average 1.5458507185906352) internal successors, (16672), 11452 states have internal predecessors, (16672), 721 states have call successors, (721), 390 states have call predecessors, (721), 1056 states have return successors, (4817), 784 states have call predecessors, (4817), 721 states have call successors, (4817) [2024-11-28 02:23:29,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12563 states to 12563 states and 22210 transitions. [2024-11-28 02:23:29,043 INFO L78 Accepts]: Start accepts. Automaton has 12563 states and 22210 transitions. Word has length 89 [2024-11-28 02:23:29,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:29,044 INFO L471 AbstractCegarLoop]: Abstraction has 12563 states and 22210 transitions. [2024-11-28 02:23:29,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:29,044 INFO L276 IsEmpty]: Start isEmpty. Operand 12563 states and 22210 transitions. [2024-11-28 02:23:29,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:23:29,063 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:29,063 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:29,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:23:29,064 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:23:29,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:29,067 INFO L85 PathProgramCache]: Analyzing trace with hash -318062354, now seen corresponding path program 1 times [2024-11-28 02:23:29,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:29,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704650880] [2024-11-28 02:23:29,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:29,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:29,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:29,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:29,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704650880] [2024-11-28 02:23:29,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704650880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:29,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:29,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:23:29,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324905290] [2024-11-28 02:23:29,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:29,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:23:29,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:29,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:23:29,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:23:29,291 INFO L87 Difference]: Start difference. First operand 12563 states and 22210 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:31,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:31,892 INFO L93 Difference]: Finished difference Result 39448 states and 75964 transitions. [2024-11-28 02:23:31,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:23:31,893 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 89 [2024-11-28 02:23:31,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:32,110 INFO L225 Difference]: With dead ends: 39448 [2024-11-28 02:23:32,111 INFO L226 Difference]: Without dead ends: 26897 [2024-11-28 02:23:32,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:23:32,177 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 456 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:32,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 1148 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:23:32,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26897 states. [2024-11-28 02:23:36,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26897 to 26203. [2024-11-28 02:23:36,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26203 states, 22007 states have (on average 1.5279683736992775) internal successors, (33626), 24068 states have internal predecessors, (33626), 1361 states have call successors, (1361), 774 states have call predecessors, (1361), 2834 states have return successors, (17745), 1488 states have call predecessors, (17745), 1361 states have call successors, (17745) [2024-11-28 02:23:36,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26203 states to 26203 states and 52732 transitions. [2024-11-28 02:23:36,344 INFO L78 Accepts]: Start accepts. Automaton has 26203 states and 52732 transitions. Word has length 89 [2024-11-28 02:23:36,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:36,344 INFO L471 AbstractCegarLoop]: Abstraction has 26203 states and 52732 transitions. [2024-11-28 02:23:36,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:36,346 INFO L276 IsEmpty]: Start isEmpty. Operand 26203 states and 52732 transitions. [2024-11-28 02:23:36,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:23:36,377 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:36,377 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:36,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:23:36,378 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:23:36,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:36,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1534216080, now seen corresponding path program 1 times [2024-11-28 02:23:36,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:36,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27332875] [2024-11-28 02:23:36,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:36,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:36,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:36,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:36,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27332875] [2024-11-28 02:23:36,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27332875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:36,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:36,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:23:36,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172774016] [2024-11-28 02:23:36,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:36,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:23:36,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:36,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:23:36,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:23:36,504 INFO L87 Difference]: Start difference. First operand 26203 states and 52732 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:38,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:38,317 INFO L93 Difference]: Finished difference Result 52396 states and 106031 transitions. [2024-11-28 02:23:38,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:23:38,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 1 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 89 [2024-11-28 02:23:38,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:38,512 INFO L225 Difference]: With dead ends: 52396 [2024-11-28 02:23:38,512 INFO L226 Difference]: Without dead ends: 26206 [2024-11-28 02:23:38,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:23:38,622 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 0 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:38,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1002 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:23:38,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26206 states. [2024-11-28 02:23:41,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26206 to 26206. [2024-11-28 02:23:41,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26206 states, 22010 states have (on average 1.5220808723307588) internal successors, (33501), 24071 states have internal predecessors, (33501), 1361 states have call successors, (1361), 774 states have call predecessors, (1361), 2834 states have return successors, (17745), 1488 states have call predecessors, (17745), 1361 states have call successors, (17745) [2024-11-28 02:23:42,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26206 states to 26206 states and 52607 transitions. [2024-11-28 02:23:42,055 INFO L78 Accepts]: Start accepts. Automaton has 26206 states and 52607 transitions. Word has length 89 [2024-11-28 02:23:42,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:42,055 INFO L471 AbstractCegarLoop]: Abstraction has 26206 states and 52607 transitions. [2024-11-28 02:23:42,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:42,056 INFO L276 IsEmpty]: Start isEmpty. Operand 26206 states and 52607 transitions. [2024-11-28 02:23:42,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:23:42,080 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:42,081 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:42,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:23:42,081 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:23:42,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:42,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1100486994, now seen corresponding path program 1 times [2024-11-28 02:23:42,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:42,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600924333] [2024-11-28 02:23:42,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:42,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:42,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:42,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:42,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600924333] [2024-11-28 02:23:42,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600924333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:42,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:42,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:23:42,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415274355] [2024-11-28 02:23:42,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:42,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:23:42,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:42,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:23:42,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:23:42,190 INFO L87 Difference]: Start difference. First operand 26206 states and 52607 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:44,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:44,135 INFO L93 Difference]: Finished difference Result 52786 states and 106293 transitions. [2024-11-28 02:23:44,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:23:44,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 1 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 89 [2024-11-28 02:23:44,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:44,334 INFO L225 Difference]: With dead ends: 52786 [2024-11-28 02:23:44,334 INFO L226 Difference]: Without dead ends: 26593 [2024-11-28 02:23:44,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:23:44,447 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 0 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:44,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1002 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:23:44,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26593 states. [2024-11-28 02:23:47,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26593 to 26593. [2024-11-28 02:23:47,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26593 states, 22397 states have (on average 1.5130597847926062) internal successors, (33888), 24458 states have internal predecessors, (33888), 1361 states have call successors, (1361), 774 states have call predecessors, (1361), 2834 states have return successors, (17745), 1488 states have call predecessors, (17745), 1361 states have call successors, (17745) [2024-11-28 02:23:47,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26593 states to 26593 states and 52994 transitions. [2024-11-28 02:23:47,826 INFO L78 Accepts]: Start accepts. Automaton has 26593 states and 52994 transitions. Word has length 89 [2024-11-28 02:23:47,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:47,827 INFO L471 AbstractCegarLoop]: Abstraction has 26593 states and 52994 transitions. [2024-11-28 02:23:47,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:47,828 INFO L276 IsEmpty]: Start isEmpty. Operand 26593 states and 52994 transitions. [2024-11-28 02:23:47,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:23:47,859 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:47,860 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:47,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:23:47,860 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:23:47,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:47,861 INFO L85 PathProgramCache]: Analyzing trace with hash 437853036, now seen corresponding path program 1 times [2024-11-28 02:23:47,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:47,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839661351] [2024-11-28 02:23:47,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:47,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:47,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:47,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:47,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839661351] [2024-11-28 02:23:47,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839661351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:47,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:47,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:23:47,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56984023] [2024-11-28 02:23:47,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:47,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:23:47,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:47,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:23:47,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:23:47,992 INFO L87 Difference]: Start difference. First operand 26593 states and 52994 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:51,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:23:51,481 INFO L93 Difference]: Finished difference Result 79059 states and 158299 transitions. [2024-11-28 02:23:51,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:23:51,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (5), 1 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 89 [2024-11-28 02:23:51,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:23:51,792 INFO L225 Difference]: With dead ends: 79059 [2024-11-28 02:23:51,793 INFO L226 Difference]: Without dead ends: 52479 [2024-11-28 02:23:51,890 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:23:51,891 INFO L435 NwaCegarLoop]: 468 mSDtfsCounter, 445 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:23:51,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 875 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:23:51,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52479 states. [2024-11-28 02:23:56,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52479 to 52347. [2024-11-28 02:23:56,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52347 states, 44121 states have (on average 1.5090773101244306) internal successors, (66582), 48242 states have internal predecessors, (66582), 2573 states have call successors, (2573), 1532 states have call predecessors, (2573), 5652 states have return successors, (35214), 2700 states have call predecessors, (35214), 2573 states have call successors, (35214) [2024-11-28 02:23:57,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52347 states to 52347 states and 104369 transitions. [2024-11-28 02:23:57,165 INFO L78 Accepts]: Start accepts. Automaton has 52347 states and 104369 transitions. Word has length 89 [2024-11-28 02:23:57,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:23:57,165 INFO L471 AbstractCegarLoop]: Abstraction has 52347 states and 104369 transitions. [2024-11-28 02:23:57,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:23:57,166 INFO L276 IsEmpty]: Start isEmpty. Operand 52347 states and 104369 transitions. [2024-11-28 02:23:57,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:23:57,188 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:23:57,189 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:23:57,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:23:57,189 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:23:57,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:23:57,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1292484021, now seen corresponding path program 1 times [2024-11-28 02:23:57,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:23:57,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55552381] [2024-11-28 02:23:57,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:23:57,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:23:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:23:57,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:23:57,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:23:57,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55552381] [2024-11-28 02:23:57,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55552381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:23:57,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:23:57,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:23:57,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262830586] [2024-11-28 02:23:57,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:23:57,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:23:57,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:23:57,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:23:57,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:23:57,291 INFO L87 Difference]: Start difference. First operand 52347 states and 104369 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:24:01,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:24:01,192 INFO L93 Difference]: Finished difference Result 105068 states and 210255 transitions. [2024-11-28 02:24:01,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:24:01,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 1 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 89 [2024-11-28 02:24:01,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:24:01,531 INFO L225 Difference]: With dead ends: 105068 [2024-11-28 02:24:01,531 INFO L226 Difference]: Without dead ends: 52734 [2024-11-28 02:24:01,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:24:01,743 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 0 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:24:01,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1002 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:24:01,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52734 states. [2024-11-28 02:24:06,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52734 to 52734. [2024-11-28 02:24:06,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52734 states, 44508 states have (on average 1.5017524939336748) internal successors, (66840), 48629 states have internal predecessors, (66840), 2573 states have call successors, (2573), 1532 states have call predecessors, (2573), 5652 states have return successors, (35214), 2700 states have call predecessors, (35214), 2573 states have call successors, (35214) [2024-11-28 02:24:06,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52734 states to 52734 states and 104627 transitions. [2024-11-28 02:24:06,898 INFO L78 Accepts]: Start accepts. Automaton has 52734 states and 104627 transitions. Word has length 89 [2024-11-28 02:24:06,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:24:06,899 INFO L471 AbstractCegarLoop]: Abstraction has 52734 states and 104627 transitions. [2024-11-28 02:24:06,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:24:06,899 INFO L276 IsEmpty]: Start isEmpty. Operand 52734 states and 104627 transitions. [2024-11-28 02:24:06,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:24:06,928 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:24:06,928 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:24:06,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:24:06,929 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:24:06,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:24:06,929 INFO L85 PathProgramCache]: Analyzing trace with hash 635788681, now seen corresponding path program 1 times [2024-11-28 02:24:06,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:24:06,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242688495] [2024-11-28 02:24:06,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:24:06,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:24:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:24:07,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:24:07,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:24:07,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242688495] [2024-11-28 02:24:07,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242688495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:24:07,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:24:07,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:24:07,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746466387] [2024-11-28 02:24:07,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:24:07,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:24:07,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:24:07,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:24:07,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:24:07,029 INFO L87 Difference]: Start difference. First operand 52734 states and 104627 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)