./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/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_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/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_6918da52-95fe-4d04-809c-97231ec35547/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 82bdcd0599c1cc352b3450b4e917b8a69eeb254589d3b948d4951dae1b33e3d4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:24:56,472 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:24:56,568 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:24:56,574 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:24:56,575 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:24:56,607 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:24:56,608 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:24:56,609 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:24:56,609 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:24:56,609 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:24:56,610 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:24:56,611 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:24:56,611 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:24:56,611 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:24:56,611 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:24:56,612 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:24:56,612 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:24:56,612 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:24:56,612 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:24:56,612 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:24:56,612 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:24:56,612 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:24:56,612 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:24:56,612 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:24:56,612 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:24:56,612 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:24:56,612 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:24:56,613 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:24:56,613 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:24:56,613 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:24:56,613 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:24:56,613 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:24:56,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:24:56,613 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:24:56,613 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:24:56,613 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:24:56,613 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:24:56,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:24:56,614 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:24:56,614 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:24:56,614 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:24:56,614 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:24:56,614 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:24:56,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:24:56,614 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:24:56,614 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:24:56,614 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:24:56,614 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:24:56,614 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_6918da52-95fe-4d04-809c-97231ec35547/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 -> 82bdcd0599c1cc352b3450b4e917b8a69eeb254589d3b948d4951dae1b33e3d4 [2024-11-27 23:24:56,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:24:56,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:24:56,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:24:56,933 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:24:56,934 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:24:56,935 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c [2024-11-27 23:25:00,281 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/data/4fc26257d/1d6eb588eb02451a9f9eddb6341ab60d/FLAGeb9e947fc [2024-11-27 23:25:00,592 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:25:00,593 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c [2024-11-27 23:25:00,608 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/data/4fc26257d/1d6eb588eb02451a9f9eddb6341ab60d/FLAGeb9e947fc [2024-11-27 23:25:00,624 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/data/4fc26257d/1d6eb588eb02451a9f9eddb6341ab60d [2024-11-27 23:25:00,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:25:00,629 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:25:00,630 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:25:00,630 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:25:00,636 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:25:00,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:25:00" (1/1) ... [2024-11-27 23:25:00,638 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92c6239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:00, skipping insertion in model container [2024-11-27 23:25:00,638 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:25:00" (1/1) ... [2024-11-27 23:25:00,680 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:25:00,865 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_6918da52-95fe-4d04-809c-97231ec35547/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c[913,926] [2024-11-27 23:25:00,924 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_6918da52-95fe-4d04-809c-97231ec35547/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c[5977,5990] [2024-11-27 23:25:01,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:25:01,061 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:25:01,078 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_6918da52-95fe-4d04-809c-97231ec35547/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c[913,926] [2024-11-27 23:25:01,101 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_6918da52-95fe-4d04-809c-97231ec35547/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c[5977,5990] [2024-11-27 23:25:01,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:25:01,194 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:25:01,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:01 WrapperNode [2024-11-27 23:25:01,195 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:25:01,197 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:25:01,198 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:25:01,198 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:25:01,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:01" (1/1) ... [2024-11-27 23:25:01,226 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:01" (1/1) ... [2024-11-27 23:25:01,304 INFO L138 Inliner]: procedures = 56, calls = 60, calls flagged for inlining = 31, calls inlined = 31, statements flattened = 592 [2024-11-27 23:25:01,304 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:25:01,305 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:25:01,305 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:25:01,306 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:25:01,318 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:01" (1/1) ... [2024-11-27 23:25:01,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:01" (1/1) ... [2024-11-27 23:25:01,323 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:01" (1/1) ... [2024-11-27 23:25:01,342 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]. [2024-11-27 23:25:01,342 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:01" (1/1) ... [2024-11-27 23:25:01,342 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:01" (1/1) ... [2024-11-27 23:25:01,353 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:01" (1/1) ... [2024-11-27 23:25:01,355 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:01" (1/1) ... [2024-11-27 23:25:01,366 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:01" (1/1) ... [2024-11-27 23:25:01,369 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:01" (1/1) ... [2024-11-27 23:25:01,372 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:01" (1/1) ... [2024-11-27 23:25:01,376 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:25:01,377 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:25:01,378 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:25:01,378 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:25:01,379 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:01" (1/1) ... [2024-11-27 23:25:01,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:25:01,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:25:01,433 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:25:01,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:25:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:25:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-27 23:25:01,481 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-27 23:25:01,482 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2024-11-27 23:25:01,482 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2024-11-27 23:25:01,482 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-27 23:25:01,482 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-27 23:25:01,482 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-27 23:25:01,482 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-27 23:25:01,482 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-27 23:25:01,482 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-27 23:25:01,482 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-27 23:25:01,483 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-27 23:25:01,483 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-27 23:25:01,483 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-27 23:25:01,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:25:01,483 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-27 23:25:01,483 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-27 23:25:01,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:25:01,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:25:01,483 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-27 23:25:01,483 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-27 23:25:01,658 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:25:01,661 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:25:02,705 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2024-11-27 23:25:02,706 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:25:02,741 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:25:02,745 INFO L312 CfgBuilder]: Removed 22 assume(true) statements. [2024-11-27 23:25:02,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:25:02 BoogieIcfgContainer [2024-11-27 23:25:02,746 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:25:02,749 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:25:02,753 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:25:02,761 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:25:02,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:25:00" (1/3) ... [2024-11-27 23:25:02,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735755d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:25:02, skipping insertion in model container [2024-11-27 23:25:02,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:01" (2/3) ... [2024-11-27 23:25:02,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735755d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:25:02, skipping insertion in model container [2024-11-27 23:25:02,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:25:02" (3/3) ... [2024-11-27 23:25:02,764 INFO L128 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.04.cil-1.c [2024-11-27 23:25:02,783 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:25:02,785 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pc_sfifo_1.cil-2+token_ring.04.cil-1.c that has 10 procedures, 248 locations, 1 initial locations, 11 loop locations, and 2 error locations. [2024-11-27 23:25:02,892 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:25:02,915 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;@fbd02e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:25:02,915 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-27 23:25:02,924 INFO L276 IsEmpty]: Start isEmpty. Operand has 248 states, 214 states have (on average 1.5981308411214954) internal successors, (342), 217 states have internal predecessors, (342), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 23:25:02,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-27 23:25:02,935 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:02,938 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] [2024-11-27 23:25:02,938 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:02,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:02,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1976215786, now seen corresponding path program 1 times [2024-11-27 23:25:02,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:02,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134571980] [2024-11-27 23:25:02,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:02,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:03,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:03,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:03,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134571980] [2024-11-27 23:25:03,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134571980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:03,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:03,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:25:03,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674029755] [2024-11-27 23:25:03,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:03,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:03,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:03,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:03,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:25:03,419 INFO L87 Difference]: Start difference. First operand has 248 states, 214 states have (on average 1.5981308411214954) internal successors, (342), 217 states have internal predecessors, (342), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:25:03,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:03,590 INFO L93 Difference]: Finished difference Result 534 states and 844 transitions. [2024-11-27 23:25:03,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:03,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-11-27 23:25:03,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:03,615 INFO L225 Difference]: With dead ends: 534 [2024-11-27 23:25:03,615 INFO L226 Difference]: Without dead ends: 293 [2024-11-27 23:25:03,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:25:03,626 INFO L435 NwaCegarLoop]: 376 mSDtfsCounter, 343 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:03,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 457 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:03,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-27 23:25:03,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 289. [2024-11-27 23:25:03,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 249 states have (on average 1.4859437751004017) internal successors, (370), 252 states have internal predecessors, (370), 28 states have call successors, (28), 11 states have call predecessors, (28), 10 states have return successors, (30), 26 states have call predecessors, (30), 26 states have call successors, (30) [2024-11-27 23:25:03,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 428 transitions. [2024-11-27 23:25:03,720 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 428 transitions. Word has length 41 [2024-11-27 23:25:03,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:03,720 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 428 transitions. [2024-11-27 23:25:03,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:25:03,721 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 428 transitions. [2024-11-27 23:25:03,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-27 23:25:03,724 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:03,724 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] [2024-11-27 23:25:03,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:25:03,725 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:03,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:03,726 INFO L85 PathProgramCache]: Analyzing trace with hash 974249831, now seen corresponding path program 1 times [2024-11-27 23:25:03,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:03,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780248185] [2024-11-27 23:25:03,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:03,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:03,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:03,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:03,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780248185] [2024-11-27 23:25:03,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780248185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:03,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:03,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:25:03,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823157266] [2024-11-27 23:25:03,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:03,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:03,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:03,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:03,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:25:03,882 INFO L87 Difference]: Start difference. First operand 289 states and 428 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:25:03,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:03,969 INFO L93 Difference]: Finished difference Result 482 states and 701 transitions. [2024-11-27 23:25:03,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:03,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2024-11-27 23:25:03,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:03,980 INFO L225 Difference]: With dead ends: 482 [2024-11-27 23:25:03,981 INFO L226 Difference]: Without dead ends: 375 [2024-11-27 23:25:03,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:25:03,987 INFO L435 NwaCegarLoop]: 380 mSDtfsCounter, 66 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:03,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 709 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:03,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-27 23:25:04,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 350. [2024-11-27 23:25:04,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 304 states have (on average 1.4736842105263157) internal successors, (448), 307 states have internal predecessors, (448), 31 states have call successors, (31), 14 states have call predecessors, (31), 13 states have return successors, (34), 29 states have call predecessors, (34), 29 states have call successors, (34) [2024-11-27 23:25:04,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 513 transitions. [2024-11-27 23:25:04,039 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 513 transitions. Word has length 42 [2024-11-27 23:25:04,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:04,042 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 513 transitions. [2024-11-27 23:25:04,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:25:04,042 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 513 transitions. [2024-11-27 23:25:04,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-27 23:25:04,048 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:04,048 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] [2024-11-27 23:25:04,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:25:04,049 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:04,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:04,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1565405487, now seen corresponding path program 1 times [2024-11-27 23:25:04,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:04,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021339217] [2024-11-27 23:25:04,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:04,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:04,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:04,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:04,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021339217] [2024-11-27 23:25:04,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021339217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:04,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:04,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:25:04,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470086172] [2024-11-27 23:25:04,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:04,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:04,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:04,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:04,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:25:04,179 INFO L87 Difference]: Start difference. First operand 350 states and 513 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:25:04,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:04,278 INFO L93 Difference]: Finished difference Result 675 states and 973 transitions. [2024-11-27 23:25:04,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:04,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2024-11-27 23:25:04,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:04,288 INFO L225 Difference]: With dead ends: 675 [2024-11-27 23:25:04,291 INFO L226 Difference]: Without dead ends: 507 [2024-11-27 23:25:04,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:25:04,293 INFO L435 NwaCegarLoop]: 363 mSDtfsCounter, 331 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:04,298 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 437 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:04,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-11-27 23:25:04,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 495. [2024-11-27 23:25:04,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 431 states have (on average 1.4338747099767981) internal successors, (618), 436 states have internal predecessors, (618), 42 states have call successors, (42), 21 states have call predecessors, (42), 20 states have return successors, (50), 38 states have call predecessors, (50), 40 states have call successors, (50) [2024-11-27 23:25:04,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 710 transitions. [2024-11-27 23:25:04,385 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 710 transitions. Word has length 43 [2024-11-27 23:25:04,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:04,386 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 710 transitions. [2024-11-27 23:25:04,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:25:04,387 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 710 transitions. [2024-11-27 23:25:04,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-27 23:25:04,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:04,395 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:04,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:25:04,395 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:04,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:04,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1966861058, now seen corresponding path program 1 times [2024-11-27 23:25:04,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:04,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696283426] [2024-11-27 23:25:04,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:04,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:04,626 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 23:25:04,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:04,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696283426] [2024-11-27 23:25:04,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696283426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:04,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:04,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:25:04,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101978628] [2024-11-27 23:25:04,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:04,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:04,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:04,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:04,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:25:04,631 INFO L87 Difference]: Start difference. First operand 495 states and 710 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 23:25:04,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:04,720 INFO L93 Difference]: Finished difference Result 966 states and 1366 transitions. [2024-11-27 23:25:04,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:04,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2024-11-27 23:25:04,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:04,726 INFO L225 Difference]: With dead ends: 966 [2024-11-27 23:25:04,726 INFO L226 Difference]: Without dead ends: 653 [2024-11-27 23:25:04,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:25:04,729 INFO L435 NwaCegarLoop]: 408 mSDtfsCounter, 53 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:04,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 751 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:04,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2024-11-27 23:25:04,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 653. [2024-11-27 23:25:04,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 567 states have (on average 1.382716049382716) internal successors, (784), 572 states have internal predecessors, (784), 56 states have call successors, (56), 29 states have call predecessors, (56), 28 states have return successors, (72), 52 states have call predecessors, (72), 54 states have call successors, (72) [2024-11-27 23:25:04,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 912 transitions. [2024-11-27 23:25:04,787 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 912 transitions. Word has length 58 [2024-11-27 23:25:04,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:04,787 INFO L471 AbstractCegarLoop]: Abstraction has 653 states and 912 transitions. [2024-11-27 23:25:04,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 23:25:04,788 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 912 transitions. [2024-11-27 23:25:04,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-27 23:25:04,791 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:04,791 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:04,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:25:04,792 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:04,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:04,793 INFO L85 PathProgramCache]: Analyzing trace with hash 2014425159, now seen corresponding path program 1 times [2024-11-27 23:25:04,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:04,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11609527] [2024-11-27 23:25:04,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:04,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:05,088 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 23:25:05,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:05,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11609527] [2024-11-27 23:25:05,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11609527] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:25:05,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121319987] [2024-11-27 23:25:05,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:05,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:05,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:25:05,093 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:25:05,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:25:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:05,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 23:25:05,276 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:25:05,366 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 23:25:05,367 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:25:05,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121319987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:05,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:25:05,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-27 23:25:05,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199815610] [2024-11-27 23:25:05,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:05,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:05,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:05,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:05,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:25:05,370 INFO L87 Difference]: Start difference. First operand 653 states and 912 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 23:25:05,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:05,484 INFO L93 Difference]: Finished difference Result 1155 states and 1589 transitions. [2024-11-27 23:25:05,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:05,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 63 [2024-11-27 23:25:05,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:05,494 INFO L225 Difference]: With dead ends: 1155 [2024-11-27 23:25:05,494 INFO L226 Difference]: Without dead ends: 772 [2024-11-27 23:25:05,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:25:05,497 INFO L435 NwaCegarLoop]: 357 mSDtfsCounter, 310 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:05,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 431 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:05,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2024-11-27 23:25:05,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 772. [2024-11-27 23:25:05,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 672 states have (on average 1.3556547619047619) internal successors, (911), 677 states have internal predecessors, (911), 64 states have call successors, (64), 35 states have call predecessors, (64), 34 states have return successors, (84), 60 states have call predecessors, (84), 62 states have call successors, (84) [2024-11-27 23:25:05,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1059 transitions. [2024-11-27 23:25:05,585 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1059 transitions. Word has length 63 [2024-11-27 23:25:05,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:05,586 INFO L471 AbstractCegarLoop]: Abstraction has 772 states and 1059 transitions. [2024-11-27 23:25:05,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 23:25:05,586 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1059 transitions. [2024-11-27 23:25:05,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-27 23:25:05,589 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:05,589 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:05,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:25:05,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:05,795 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:05,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:05,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1880550938, now seen corresponding path program 1 times [2024-11-27 23:25:05,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:05,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229749930] [2024-11-27 23:25:05,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:05,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:05,913 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 23:25:05,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:05,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229749930] [2024-11-27 23:25:05,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229749930] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:25:05,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867818044] [2024-11-27 23:25:05,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:05,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:05,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:25:05,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:25:05,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:25:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:06,055 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:25:06,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:25:06,197 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:06,197 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:25:06,274 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-27 23:25:06,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867818044] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:25:06,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:25:06,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 7 [2024-11-27 23:25:06,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500906011] [2024-11-27 23:25:06,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:06,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:25:06,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:06,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:25:06,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:25:06,280 INFO L87 Difference]: Start difference. First operand 772 states and 1059 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 23:25:06,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:06,568 INFO L93 Difference]: Finished difference Result 822 states and 1121 transitions. [2024-11-27 23:25:06,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:25:06,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 63 [2024-11-27 23:25:06,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:06,576 INFO L225 Difference]: With dead ends: 822 [2024-11-27 23:25:06,576 INFO L226 Difference]: Without dead ends: 819 [2024-11-27 23:25:06,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:25:06,577 INFO L435 NwaCegarLoop]: 376 mSDtfsCounter, 625 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:06,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 439 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:25:06,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2024-11-27 23:25:06,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 771. [2024-11-27 23:25:06,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 672 states have (on average 1.3526785714285714) internal successors, (909), 676 states have internal predecessors, (909), 63 states have call successors, (63), 35 states have call predecessors, (63), 34 states have return successors, (84), 60 states have call predecessors, (84), 62 states have call successors, (84) [2024-11-27 23:25:06,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1056 transitions. [2024-11-27 23:25:06,655 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1056 transitions. Word has length 63 [2024-11-27 23:25:06,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:06,656 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 1056 transitions. [2024-11-27 23:25:06,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 23:25:06,656 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1056 transitions. [2024-11-27 23:25:06,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-27 23:25:06,659 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:06,659 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:06,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:25:06,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:06,860 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:06,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:06,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1831665536, now seen corresponding path program 1 times [2024-11-27 23:25:06,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:06,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073696421] [2024-11-27 23:25:06,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:06,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:06,993 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 23:25:06,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:06,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073696421] [2024-11-27 23:25:06,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073696421] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:25:06,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12597615] [2024-11-27 23:25:06,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:06,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:06,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:25:06,996 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:25:06,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:25:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:07,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 23:25:07,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:25:07,582 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:07,582 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:25:07,718 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-27 23:25:07,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12597615] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:25:07,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:25:07,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 10 [2024-11-27 23:25:07,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622384081] [2024-11-27 23:25:07,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:25:07,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:25:07,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:07,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:25:07,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:25:07,721 INFO L87 Difference]: Start difference. First operand 771 states and 1056 transitions. Second operand has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-27 23:25:08,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:08,382 INFO L93 Difference]: Finished difference Result 2008 states and 2733 transitions. [2024-11-27 23:25:08,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 23:25:08,383 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 64 [2024-11-27 23:25:08,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:08,393 INFO L225 Difference]: With dead ends: 2008 [2024-11-27 23:25:08,393 INFO L226 Difference]: Without dead ends: 1551 [2024-11-27 23:25:08,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=382, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:25:08,397 INFO L435 NwaCegarLoop]: 437 mSDtfsCounter, 812 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:08,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 2558 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:25:08,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2024-11-27 23:25:08,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1106. [2024-11-27 23:25:08,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 971 states have (on average 1.322348094747683) internal successors, (1284), 980 states have internal predecessors, (1284), 83 states have call successors, (83), 49 states have call predecessors, (83), 50 states have return successors, (115), 77 states have call predecessors, (115), 82 states have call successors, (115) [2024-11-27 23:25:08,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1482 transitions. [2024-11-27 23:25:08,540 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1482 transitions. Word has length 64 [2024-11-27 23:25:08,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:08,540 INFO L471 AbstractCegarLoop]: Abstraction has 1106 states and 1482 transitions. [2024-11-27 23:25:08,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-27 23:25:08,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1482 transitions. [2024-11-27 23:25:08,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-27 23:25:08,545 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:08,546 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:08,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:25:08,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:08,752 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:08,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:08,753 INFO L85 PathProgramCache]: Analyzing trace with hash -433395846, now seen corresponding path program 1 times [2024-11-27 23:25:08,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:08,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832201390] [2024-11-27 23:25:08,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:08,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:08,919 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-27 23:25:08,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:08,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832201390] [2024-11-27 23:25:08,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832201390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:25:08,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241706273] [2024-11-27 23:25:08,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:08,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:08,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:25:08,922 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:25:08,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:25:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:09,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:25:09,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:25:09,133 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-27 23:25:09,133 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:25:09,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241706273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:09,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:25:09,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-27 23:25:09,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115031155] [2024-11-27 23:25:09,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:09,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:09,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:09,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:09,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:09,137 INFO L87 Difference]: Start difference. First operand 1106 states and 1482 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 23:25:09,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:09,264 INFO L93 Difference]: Finished difference Result 1706 states and 2277 transitions. [2024-11-27 23:25:09,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:09,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 82 [2024-11-27 23:25:09,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:09,273 INFO L225 Difference]: With dead ends: 1706 [2024-11-27 23:25:09,274 INFO L226 Difference]: Without dead ends: 994 [2024-11-27 23:25:09,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:09,277 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 315 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:09,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 453 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:09,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2024-11-27 23:25:09,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 985. [2024-11-27 23:25:09,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 864 states have (on average 1.3194444444444444) internal successors, (1140), 874 states have internal predecessors, (1140), 75 states have call successors, (75), 43 states have call predecessors, (75), 44 states have return successors, (103), 68 states have call predecessors, (103), 74 states have call successors, (103) [2024-11-27 23:25:09,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1318 transitions. [2024-11-27 23:25:09,372 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1318 transitions. Word has length 82 [2024-11-27 23:25:09,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:09,373 INFO L471 AbstractCegarLoop]: Abstraction has 985 states and 1318 transitions. [2024-11-27 23:25:09,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 23:25:09,373 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1318 transitions. [2024-11-27 23:25:09,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-27 23:25:09,378 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:09,378 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] [2024-11-27 23:25:09,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 23:25:09,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:09,579 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:09,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:09,579 INFO L85 PathProgramCache]: Analyzing trace with hash 877234017, now seen corresponding path program 1 times [2024-11-27 23:25:09,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:09,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596561226] [2024-11-27 23:25:09,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:09,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:09,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:09,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:09,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596561226] [2024-11-27 23:25:09,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596561226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:09,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:09,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:25:09,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63609282] [2024-11-27 23:25:09,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:09,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:09,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:09,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:09,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:25:09,638 INFO L87 Difference]: Start difference. First operand 985 states and 1318 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:25:09,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:09,702 INFO L93 Difference]: Finished difference Result 1154 states and 1575 transitions. [2024-11-27 23:25:09,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:09,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-27 23:25:09,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:09,709 INFO L225 Difference]: With dead ends: 1154 [2024-11-27 23:25:09,709 INFO L226 Difference]: Without dead ends: 985 [2024-11-27 23:25:09,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:25:09,711 INFO L435 NwaCegarLoop]: 350 mSDtfsCounter, 259 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:09,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 437 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:09,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2024-11-27 23:25:09,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 985. [2024-11-27 23:25:09,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 864 states have (on average 1.318287037037037) internal successors, (1139), 874 states have internal predecessors, (1139), 75 states have call successors, (75), 43 states have call predecessors, (75), 44 states have return successors, (103), 68 states have call predecessors, (103), 74 states have call successors, (103) [2024-11-27 23:25:09,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1317 transitions. [2024-11-27 23:25:09,811 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1317 transitions. Word has length 88 [2024-11-27 23:25:09,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:09,812 INFO L471 AbstractCegarLoop]: Abstraction has 985 states and 1317 transitions. [2024-11-27 23:25:09,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:25:09,812 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1317 transitions. [2024-11-27 23:25:09,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-27 23:25:09,821 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:09,821 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] [2024-11-27 23:25:09,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:25:09,822 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:09,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:09,822 INFO L85 PathProgramCache]: Analyzing trace with hash 2019736483, now seen corresponding path program 1 times [2024-11-27 23:25:09,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:09,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982702913] [2024-11-27 23:25:09,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:09,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:09,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:09,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:09,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:09,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982702913] [2024-11-27 23:25:09,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982702913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:09,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:09,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:25:09,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113805727] [2024-11-27 23:25:09,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:09,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:25:09,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:09,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:25:09,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:25:09,987 INFO L87 Difference]: Start difference. First operand 985 states and 1317 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-11-27 23:25:10,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:10,703 INFO L93 Difference]: Finished difference Result 1327 states and 1843 transitions. [2024-11-27 23:25:10,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:25:10,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 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 88 [2024-11-27 23:25:10,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:10,711 INFO L225 Difference]: With dead ends: 1327 [2024-11-27 23:25:10,711 INFO L226 Difference]: Without dead ends: 1164 [2024-11-27 23:25:10,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:10,713 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 580 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:10,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 855 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:25:10,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1164 states. [2024-11-27 23:25:10,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1164 to 1151. [2024-11-27 23:25:10,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1151 states, 1010 states have (on average 1.3514851485148516) internal successors, (1365), 1021 states have internal predecessors, (1365), 88 states have call successors, (88), 49 states have call predecessors, (88), 51 states have return successors, (117), 81 states have call predecessors, (117), 87 states have call successors, (117) [2024-11-27 23:25:10,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1570 transitions. [2024-11-27 23:25:10,800 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1570 transitions. Word has length 88 [2024-11-27 23:25:10,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:10,800 INFO L471 AbstractCegarLoop]: Abstraction has 1151 states and 1570 transitions. [2024-11-27 23:25:10,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-11-27 23:25:10,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1570 transitions. [2024-11-27 23:25:10,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-27 23:25:10,803 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:10,804 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] [2024-11-27 23:25:10,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:25:10,805 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:10,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:10,805 INFO L85 PathProgramCache]: Analyzing trace with hash 108693925, now seen corresponding path program 1 times [2024-11-27 23:25:10,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:10,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459671433] [2024-11-27 23:25:10,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:10,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:10,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:10,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:10,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459671433] [2024-11-27 23:25:10,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459671433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:10,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:10,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:25:10,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295510647] [2024-11-27 23:25:10,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:10,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:25:10,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:10,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:25:10,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:10,998 INFO L87 Difference]: Start difference. First operand 1151 states and 1570 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2024-11-27 23:25:11,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:11,905 INFO L93 Difference]: Finished difference Result 1688 states and 2398 transitions. [2024-11-27 23:25:11,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:25:11,906 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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 88 [2024-11-27 23:25:11,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:11,913 INFO L225 Difference]: With dead ends: 1688 [2024-11-27 23:25:11,913 INFO L226 Difference]: Without dead ends: 1359 [2024-11-27 23:25:11,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:25:11,916 INFO L435 NwaCegarLoop]: 388 mSDtfsCounter, 574 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:11,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 1519 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:25:11,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2024-11-27 23:25:12,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1306. [2024-11-27 23:25:12,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 1145 states have (on average 1.3703056768558952) internal successors, (1569), 1157 states have internal predecessors, (1569), 101 states have call successors, (101), 55 states have call predecessors, (101), 58 states have return successors, (133), 95 states have call predecessors, (133), 100 states have call successors, (133) [2024-11-27 23:25:12,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 1803 transitions. [2024-11-27 23:25:12,025 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 1803 transitions. Word has length 88 [2024-11-27 23:25:12,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:12,026 INFO L471 AbstractCegarLoop]: Abstraction has 1306 states and 1803 transitions. [2024-11-27 23:25:12,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2024-11-27 23:25:12,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 1803 transitions. [2024-11-27 23:25:12,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-27 23:25:12,029 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:12,029 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] [2024-11-27 23:25:12,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:25:12,030 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:12,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:12,030 INFO L85 PathProgramCache]: Analyzing trace with hash 185594723, now seen corresponding path program 1 times [2024-11-27 23:25:12,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:12,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825402842] [2024-11-27 23:25:12,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:12,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:12,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:12,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:12,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825402842] [2024-11-27 23:25:12,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825402842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:12,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:12,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:25:12,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815277639] [2024-11-27 23:25:12,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:12,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:25:12,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:12,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:25:12,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:25:12,176 INFO L87 Difference]: Start difference. First operand 1306 states and 1803 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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) [2024-11-27 23:25:12,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:12,702 INFO L93 Difference]: Finished difference Result 1830 states and 2612 transitions. [2024-11-27 23:25:12,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:25:12,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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 88 [2024-11-27 23:25:12,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:12,712 INFO L225 Difference]: With dead ends: 1830 [2024-11-27 23:25:12,712 INFO L226 Difference]: Without dead ends: 1346 [2024-11-27 23:25:12,714 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:12,715 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 448 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:12,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 641 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:25:12,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2024-11-27 23:25:12,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1306. [2024-11-27 23:25:12,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 1145 states have (on average 1.3676855895196507) internal successors, (1566), 1157 states have internal predecessors, (1566), 101 states have call successors, (101), 55 states have call predecessors, (101), 58 states have return successors, (133), 95 states have call predecessors, (133), 100 states have call successors, (133) [2024-11-27 23:25:12,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 1800 transitions. [2024-11-27 23:25:12,871 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 1800 transitions. Word has length 88 [2024-11-27 23:25:12,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:12,872 INFO L471 AbstractCegarLoop]: Abstraction has 1306 states and 1800 transitions. [2024-11-27 23:25:12,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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) [2024-11-27 23:25:12,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 1800 transitions. [2024-11-27 23:25:12,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-27 23:25:12,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:12,876 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] [2024-11-27 23:25:12,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 23:25:12,877 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:12,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:12,877 INFO L85 PathProgramCache]: Analyzing trace with hash 2094052513, now seen corresponding path program 1 times [2024-11-27 23:25:12,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:12,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633707778] [2024-11-27 23:25:12,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:12,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:12,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:12,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:12,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:12,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633707778] [2024-11-27 23:25:12,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633707778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:12,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:12,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:25:12,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073360201] [2024-11-27 23:25:12,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:12,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:25:12,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:12,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:25:12,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:25:12,990 INFO L87 Difference]: Start difference. First operand 1306 states and 1800 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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) [2024-11-27 23:25:13,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:13,504 INFO L93 Difference]: Finished difference Result 1825 states and 2596 transitions. [2024-11-27 23:25:13,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:25:13,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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 88 [2024-11-27 23:25:13,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:13,513 INFO L225 Difference]: With dead ends: 1825 [2024-11-27 23:25:13,513 INFO L226 Difference]: Without dead ends: 1341 [2024-11-27 23:25:13,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:13,517 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 445 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:13,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 633 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:25:13,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2024-11-27 23:25:13,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1306. [2024-11-27 23:25:13,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 1145 states have (on average 1.3650655021834062) internal successors, (1563), 1157 states have internal predecessors, (1563), 101 states have call successors, (101), 55 states have call predecessors, (101), 58 states have return successors, (133), 95 states have call predecessors, (133), 100 states have call successors, (133) [2024-11-27 23:25:13,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 1797 transitions. [2024-11-27 23:25:13,656 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 1797 transitions. Word has length 88 [2024-11-27 23:25:13,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:13,656 INFO L471 AbstractCegarLoop]: Abstraction has 1306 states and 1797 transitions. [2024-11-27 23:25:13,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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) [2024-11-27 23:25:13,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 1797 transitions. [2024-11-27 23:25:13,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-27 23:25:13,663 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:13,663 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] [2024-11-27 23:25:13,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 23:25:13,664 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:13,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:13,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1601426339, now seen corresponding path program 1 times [2024-11-27 23:25:13,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:13,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67416857] [2024-11-27 23:25:13,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:13,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:13,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:13,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:13,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67416857] [2024-11-27 23:25:13,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67416857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:13,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:13,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:25:13,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742992183] [2024-11-27 23:25:13,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:13,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:25:13,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:13,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:25:13,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:25:13,840 INFO L87 Difference]: Start difference. First operand 1306 states and 1797 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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) [2024-11-27 23:25:14,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:14,344 INFO L93 Difference]: Finished difference Result 1820 states and 2580 transitions. [2024-11-27 23:25:14,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:25:14,345 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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 88 [2024-11-27 23:25:14,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:14,352 INFO L225 Difference]: With dead ends: 1820 [2024-11-27 23:25:14,352 INFO L226 Difference]: Without dead ends: 1336 [2024-11-27 23:25:14,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:14,356 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 440 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:14,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 623 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:25:14,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2024-11-27 23:25:14,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 1306. [2024-11-27 23:25:14,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 1145 states have (on average 1.3624454148471616) internal successors, (1560), 1157 states have internal predecessors, (1560), 101 states have call successors, (101), 55 states have call predecessors, (101), 58 states have return successors, (133), 95 states have call predecessors, (133), 100 states have call successors, (133) [2024-11-27 23:25:14,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 1794 transitions. [2024-11-27 23:25:14,494 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 1794 transitions. Word has length 88 [2024-11-27 23:25:14,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:14,494 INFO L471 AbstractCegarLoop]: Abstraction has 1306 states and 1794 transitions. [2024-11-27 23:25:14,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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) [2024-11-27 23:25:14,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 1794 transitions. [2024-11-27 23:25:14,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-27 23:25:14,498 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:14,498 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] [2024-11-27 23:25:14,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 23:25:14,498 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:14,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:14,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1739600799, now seen corresponding path program 1 times [2024-11-27 23:25:14,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:14,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215026488] [2024-11-27 23:25:14,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:14,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:14,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:14,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:14,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215026488] [2024-11-27 23:25:14,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215026488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:14,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:14,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:25:14,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746188455] [2024-11-27 23:25:14,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:14,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:25:14,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:14,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:25:14,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:14,657 INFO L87 Difference]: Start difference. First operand 1306 states and 1794 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2024-11-27 23:25:15,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:15,716 INFO L93 Difference]: Finished difference Result 2193 states and 3126 transitions. [2024-11-27 23:25:15,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:25:15,717 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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 88 [2024-11-27 23:25:15,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:15,729 INFO L225 Difference]: With dead ends: 2193 [2024-11-27 23:25:15,729 INFO L226 Difference]: Without dead ends: 1709 [2024-11-27 23:25:15,733 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 [2024-11-27 23:25:15,735 INFO L435 NwaCegarLoop]: 362 mSDtfsCounter, 645 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:15,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 1415 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:25:15,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states. [2024-11-27 23:25:15,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 1607. [2024-11-27 23:25:15,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1607 states, 1406 states have (on average 1.3847795163584637) internal successors, (1947), 1422 states have internal predecessors, (1947), 125 states have call successors, (125), 67 states have call predecessors, (125), 74 states have return successors, (169), 121 states have call predecessors, (169), 124 states have call successors, (169) [2024-11-27 23:25:15,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1607 states to 1607 states and 2241 transitions. [2024-11-27 23:25:15,930 INFO L78 Accepts]: Start accepts. Automaton has 1607 states and 2241 transitions. Word has length 88 [2024-11-27 23:25:15,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:15,930 INFO L471 AbstractCegarLoop]: Abstraction has 1607 states and 2241 transitions. [2024-11-27 23:25:15,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2024-11-27 23:25:15,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1607 states and 2241 transitions. [2024-11-27 23:25:15,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-27 23:25:15,934 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:15,935 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] [2024-11-27 23:25:15,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 23:25:15,936 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:15,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:15,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1339212771, now seen corresponding path program 1 times [2024-11-27 23:25:15,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:15,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424744316] [2024-11-27 23:25:15,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:15,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:16,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:16,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:16,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424744316] [2024-11-27 23:25:16,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424744316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:16,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:16,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:25:16,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267996490] [2024-11-27 23:25:16,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:16,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:25:16,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:16,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:25:16,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:16,076 INFO L87 Difference]: Start difference. First operand 1607 states and 2241 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2024-11-27 23:25:16,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:16,959 INFO L93 Difference]: Finished difference Result 3146 states and 4557 transitions. [2024-11-27 23:25:16,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:25:16,960 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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 88 [2024-11-27 23:25:16,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:16,971 INFO L225 Difference]: With dead ends: 3146 [2024-11-27 23:25:16,972 INFO L226 Difference]: Without dead ends: 2361 [2024-11-27 23:25:16,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:25:16,975 INFO L435 NwaCegarLoop]: 360 mSDtfsCounter, 560 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 1407 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:16,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 1407 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:25:16,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2361 states. [2024-11-27 23:25:17,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2361 to 2232. [2024-11-27 23:25:17,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2232 states, 1947 states have (on average 1.41397021058038) internal successors, (2753), 1977 states have internal predecessors, (2753), 171 states have call successors, (171), 91 states have call predecessors, (171), 112 states have return successors, (263), 171 states have call predecessors, (263), 170 states have call successors, (263) [2024-11-27 23:25:17,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2232 states to 2232 states and 3187 transitions. [2024-11-27 23:25:17,191 INFO L78 Accepts]: Start accepts. Automaton has 2232 states and 3187 transitions. Word has length 88 [2024-11-27 23:25:17,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:17,191 INFO L471 AbstractCegarLoop]: Abstraction has 2232 states and 3187 transitions. [2024-11-27 23:25:17,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2024-11-27 23:25:17,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2232 states and 3187 transitions. [2024-11-27 23:25:17,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-27 23:25:17,195 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:17,195 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] [2024-11-27 23:25:17,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 23:25:17,196 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:17,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:17,196 INFO L85 PathProgramCache]: Analyzing trace with hash 607245345, now seen corresponding path program 1 times [2024-11-27 23:25:17,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:17,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200542197] [2024-11-27 23:25:17,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:17,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:17,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:17,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:17,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200542197] [2024-11-27 23:25:17,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200542197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:17,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:17,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:25:17,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394380828] [2024-11-27 23:25:17,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:17,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:25:17,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:17,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:25:17,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:17,317 INFO L87 Difference]: Start difference. First operand 2232 states and 3187 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2024-11-27 23:25:18,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:18,246 INFO L93 Difference]: Finished difference Result 5091 states and 7563 transitions. [2024-11-27 23:25:18,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:25:18,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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 88 [2024-11-27 23:25:18,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:18,264 INFO L225 Difference]: With dead ends: 5091 [2024-11-27 23:25:18,264 INFO L226 Difference]: Without dead ends: 3681 [2024-11-27 23:25:18,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:25:18,269 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 597 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:18,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 1052 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:25:18,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3681 states. [2024-11-27 23:25:18,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3681 to 3515. [2024-11-27 23:25:18,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3515 states, 3048 states have (on average 1.43996062992126) internal successors, (4389), 3124 states have internal predecessors, (4389), 259 states have call successors, (259), 139 states have call predecessors, (259), 206 states have return successors, (543), 267 states have call predecessors, (543), 258 states have call successors, (543) [2024-11-27 23:25:18,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3515 states to 3515 states and 5191 transitions. [2024-11-27 23:25:18,671 INFO L78 Accepts]: Start accepts. Automaton has 3515 states and 5191 transitions. Word has length 88 [2024-11-27 23:25:18,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:18,672 INFO L471 AbstractCegarLoop]: Abstraction has 3515 states and 5191 transitions. [2024-11-27 23:25:18,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2024-11-27 23:25:18,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3515 states and 5191 transitions. [2024-11-27 23:25:18,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-27 23:25:18,676 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:18,676 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] [2024-11-27 23:25:18,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 23:25:18,676 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:18,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:18,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1078934493, now seen corresponding path program 1 times [2024-11-27 23:25:18,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:18,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301929018] [2024-11-27 23:25:18,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:18,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:18,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:18,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:18,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301929018] [2024-11-27 23:25:18,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301929018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:18,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:18,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:25:18,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309600041] [2024-11-27 23:25:18,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:18,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:25:18,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:18,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:25:18,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:18,800 INFO L87 Difference]: Start difference. First operand 3515 states and 5191 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2024-11-27 23:25:20,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:20,114 INFO L93 Difference]: Finished difference Result 9010 states and 13937 transitions. [2024-11-27 23:25:20,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:25:20,115 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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 88 [2024-11-27 23:25:20,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:20,149 INFO L225 Difference]: With dead ends: 9010 [2024-11-27 23:25:20,149 INFO L226 Difference]: Without dead ends: 6317 [2024-11-27 23:25:20,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:25:20,159 INFO L435 NwaCegarLoop]: 354 mSDtfsCounter, 530 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:20,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 1383 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:25:20,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6317 states. [2024-11-27 23:25:20,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6317 to 6138. [2024-11-27 23:25:20,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 5261 states have (on average 1.4516251663181905) internal successors, (7637), 5483 states have internal predecessors, (7637), 427 states have call successors, (427), 235 states have call predecessors, (427), 448 states have return successors, (1479), 451 states have call predecessors, (1479), 426 states have call successors, (1479) [2024-11-27 23:25:20,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 9543 transitions. [2024-11-27 23:25:20,927 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 9543 transitions. Word has length 88 [2024-11-27 23:25:20,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:20,927 INFO L471 AbstractCegarLoop]: Abstraction has 6138 states and 9543 transitions. [2024-11-27 23:25:20,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 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) [2024-11-27 23:25:20,927 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 9543 transitions. [2024-11-27 23:25:20,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-27 23:25:20,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:20,933 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] [2024-11-27 23:25:20,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 23:25:20,934 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:20,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:20,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1133327391, now seen corresponding path program 1 times [2024-11-27 23:25:20,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:20,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005984632] [2024-11-27 23:25:20,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:20,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:21,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:21,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:21,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005984632] [2024-11-27 23:25:21,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005984632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:21,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:21,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:25:21,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090784675] [2024-11-27 23:25:21,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:21,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:25:21,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:21,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:25:21,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:25:21,018 INFO L87 Difference]: Start difference. First operand 6138 states and 9543 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-11-27 23:25:21,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:21,956 INFO L93 Difference]: Finished difference Result 14309 states and 22734 transitions. [2024-11-27 23:25:21,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:25:21,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 88 [2024-11-27 23:25:21,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:22,061 INFO L225 Difference]: With dead ends: 14309 [2024-11-27 23:25:22,061 INFO L226 Difference]: Without dead ends: 8994 [2024-11-27 23:25:22,076 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 [2024-11-27 23:25:22,077 INFO L435 NwaCegarLoop]: 569 mSDtfsCounter, 529 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:22,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 1062 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:25:22,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8994 states. [2024-11-27 23:25:23,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8994 to 8701. [2024-11-27 23:25:23,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8701 states, 7458 states have (on average 1.4444891391794046) internal successors, (10773), 7763 states have internal predecessors, (10773), 625 states have call successors, (625), 337 states have call predecessors, (625), 616 states have return successors, (1918), 632 states have call predecessors, (1918), 624 states have call successors, (1918) [2024-11-27 23:25:23,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8701 states to 8701 states and 13316 transitions. [2024-11-27 23:25:23,247 INFO L78 Accepts]: Start accepts. Automaton has 8701 states and 13316 transitions. Word has length 88 [2024-11-27 23:25:23,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:23,248 INFO L471 AbstractCegarLoop]: Abstraction has 8701 states and 13316 transitions. [2024-11-27 23:25:23,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-11-27 23:25:23,249 INFO L276 IsEmpty]: Start isEmpty. Operand 8701 states and 13316 transitions. [2024-11-27 23:25:23,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-27 23:25:23,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:23,257 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:23,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 23:25:23,258 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:23,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:23,258 INFO L85 PathProgramCache]: Analyzing trace with hash 533738267, now seen corresponding path program 1 times [2024-11-27 23:25:23,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:23,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477276318] [2024-11-27 23:25:23,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:23,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:23,338 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-27 23:25:23,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:23,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477276318] [2024-11-27 23:25:23,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477276318] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:25:23,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396220954] [2024-11-27 23:25:23,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:23,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:23,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:25:23,341 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:25:23,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:25:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:23,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 23:25:23,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:25:23,489 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-27 23:25:23,489 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:25:23,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396220954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:23,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:25:23,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-27 23:25:23,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321989195] [2024-11-27 23:25:23,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:23,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:23,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:23,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:23,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:23,492 INFO L87 Difference]: Start difference. First operand 8701 states and 13316 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-27 23:25:24,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:24,293 INFO L93 Difference]: Finished difference Result 9050 states and 13757 transitions. [2024-11-27 23:25:24,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:24,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 96 [2024-11-27 23:25:24,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:24,333 INFO L225 Difference]: With dead ends: 9050 [2024-11-27 23:25:24,333 INFO L226 Difference]: Without dead ends: 7892 [2024-11-27 23:25:24,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:24,342 INFO L435 NwaCegarLoop]: 391 mSDtfsCounter, 60 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:24,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 715 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:24,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7892 states. [2024-11-27 23:25:25,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7892 to 7892. [2024-11-27 23:25:25,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7892 states, 6745 states have (on average 1.462268346923647) internal successors, (9863), 7041 states have internal predecessors, (9863), 568 states have call successors, (568), 300 states have call predecessors, (568), 578 states have return successors, (1833), 582 states have call predecessors, (1833), 568 states have call successors, (1833) [2024-11-27 23:25:25,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7892 states to 7892 states and 12264 transitions. [2024-11-27 23:25:25,247 INFO L78 Accepts]: Start accepts. Automaton has 7892 states and 12264 transitions. Word has length 96 [2024-11-27 23:25:25,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:25,247 INFO L471 AbstractCegarLoop]: Abstraction has 7892 states and 12264 transitions. [2024-11-27 23:25:25,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-27 23:25:25,247 INFO L276 IsEmpty]: Start isEmpty. Operand 7892 states and 12264 transitions. [2024-11-27 23:25:25,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:25:25,268 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:25,269 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:25,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 23:25:25,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:25,471 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:25,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:25,472 INFO L85 PathProgramCache]: Analyzing trace with hash -331200379, now seen corresponding path program 1 times [2024-11-27 23:25:25,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:25,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781655051] [2024-11-27 23:25:25,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:25,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:25,599 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 23:25:25,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:25,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781655051] [2024-11-27 23:25:25,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781655051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:25:25,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998555109] [2024-11-27 23:25:25,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:25,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:25,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:25:25,602 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:25:25,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:25:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:25,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 23:25:25,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:25:25,864 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-27 23:25:25,865 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:25:25,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998555109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:25,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:25:25,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-27 23:25:25,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457289583] [2024-11-27 23:25:25,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:25,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:25,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:25,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:25,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:25,867 INFO L87 Difference]: Start difference. First operand 7892 states and 12264 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:25:27,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:27,321 INFO L93 Difference]: Finished difference Result 23469 states and 36702 transitions. [2024-11-27 23:25:27,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:27,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 143 [2024-11-27 23:25:27,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:27,397 INFO L225 Difference]: With dead ends: 23469 [2024-11-27 23:25:27,397 INFO L226 Difference]: Without dead ends: 15591 [2024-11-27 23:25:27,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:27,420 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 204 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:27,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 488 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:27,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15591 states. [2024-11-27 23:25:28,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15591 to 15539. [2024-11-27 23:25:28,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15539 states, 13276 states have (on average 1.4581199156372402) internal successors, (19358), 13867 states have internal predecessors, (19358), 1106 states have call successors, (1106), 600 states have call predecessors, (1106), 1156 states have return successors, (3605), 1103 states have call predecessors, (3605), 1106 states have call successors, (3605) [2024-11-27 23:25:29,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15539 states to 15539 states and 24069 transitions. [2024-11-27 23:25:29,038 INFO L78 Accepts]: Start accepts. Automaton has 15539 states and 24069 transitions. Word has length 143 [2024-11-27 23:25:29,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:29,039 INFO L471 AbstractCegarLoop]: Abstraction has 15539 states and 24069 transitions. [2024-11-27 23:25:29,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:25:29,039 INFO L276 IsEmpty]: Start isEmpty. Operand 15539 states and 24069 transitions. [2024-11-27 23:25:29,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:25:29,071 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:29,071 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:29,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 23:25:29,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:29,272 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:29,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:29,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1740420541, now seen corresponding path program 1 times [2024-11-27 23:25:29,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:29,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846180709] [2024-11-27 23:25:29,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:29,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:29,372 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 23:25:29,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:29,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846180709] [2024-11-27 23:25:29,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846180709] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:25:29,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180365170] [2024-11-27 23:25:29,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:29,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:29,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:25:29,376 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:25:29,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 23:25:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:29,535 INFO L256 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 23:25:29,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:25:29,608 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-27 23:25:29,608 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:25:29,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180365170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:29,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:25:29,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-27 23:25:29,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96516606] [2024-11-27 23:25:29,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:29,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:29,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:29,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:29,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:29,611 INFO L87 Difference]: Start difference. First operand 15539 states and 24069 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:25:32,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:32,939 INFO L93 Difference]: Finished difference Result 46232 states and 72075 transitions. [2024-11-27 23:25:32,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:32,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 143 [2024-11-27 23:25:32,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:33,105 INFO L225 Difference]: With dead ends: 46232 [2024-11-27 23:25:33,105 INFO L226 Difference]: Without dead ends: 30707 [2024-11-27 23:25:33,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:33,163 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 216 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:33,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 488 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:33,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30707 states. [2024-11-27 23:25:35,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30707 to 30605. [2024-11-27 23:25:35,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30605 states, 26136 states have (on average 1.4537802265074993) internal successors, (37996), 27317 states have internal predecessors, (37996), 2156 states have call successors, (2156), 1200 states have call predecessors, (2156), 2312 states have return successors, (7123), 2119 states have call predecessors, (7123), 2156 states have call successors, (7123) [2024-11-27 23:25:36,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30605 states to 30605 states and 47275 transitions. [2024-11-27 23:25:36,072 INFO L78 Accepts]: Start accepts. Automaton has 30605 states and 47275 transitions. Word has length 143 [2024-11-27 23:25:36,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:36,073 INFO L471 AbstractCegarLoop]: Abstraction has 30605 states and 47275 transitions. [2024-11-27 23:25:36,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:25:36,073 INFO L276 IsEmpty]: Start isEmpty. Operand 30605 states and 47275 transitions. [2024-11-27 23:25:36,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 23:25:36,114 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:36,114 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:36,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 23:25:36,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:36,315 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:36,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:36,316 INFO L85 PathProgramCache]: Analyzing trace with hash -754344191, now seen corresponding path program 1 times [2024-11-27 23:25:36,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:36,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892777364] [2024-11-27 23:25:36,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:36,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:36,401 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 23:25:36,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:36,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892777364] [2024-11-27 23:25:36,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892777364] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:25:36,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216712860] [2024-11-27 23:25:36,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:36,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:36,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:25:36,404 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:25:36,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 23:25:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:36,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 23:25:36,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:25:36,587 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-27 23:25:36,587 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:25:36,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216712860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:36,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:25:36,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-27 23:25:36,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869072390] [2024-11-27 23:25:36,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:36,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:36,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:36,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:36,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:36,589 INFO L87 Difference]: Start difference. First operand 30605 states and 47275 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 23:25:40,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:40,576 INFO L93 Difference]: Finished difference Result 50751 states and 77836 transitions. [2024-11-27 23:25:40,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:40,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 143 [2024-11-27 23:25:40,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:40,778 INFO L225 Difference]: With dead ends: 50751 [2024-11-27 23:25:40,778 INFO L226 Difference]: Without dead ends: 40405 [2024-11-27 23:25:40,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:40,813 INFO L435 NwaCegarLoop]: 484 mSDtfsCounter, 214 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:40,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 742 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:40,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40405 states. [2024-11-27 23:25:44,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40405 to 40405. [2024-11-27 23:25:44,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40405 states, 34576 states have (on average 1.451411383618695) internal successors, (50184), 36021 states have internal predecessors, (50184), 2844 states have call successors, (2844), 1608 states have call predecessors, (2844), 2984 states have return successors, (9055), 2807 states have call predecessors, (9055), 2844 states have call successors, (9055) [2024-11-27 23:25:44,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40405 states to 40405 states and 62083 transitions. [2024-11-27 23:25:44,596 INFO L78 Accepts]: Start accepts. Automaton has 40405 states and 62083 transitions. Word has length 143 [2024-11-27 23:25:44,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:44,596 INFO L471 AbstractCegarLoop]: Abstraction has 40405 states and 62083 transitions. [2024-11-27 23:25:44,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 23:25:44,597 INFO L276 IsEmpty]: Start isEmpty. Operand 40405 states and 62083 transitions. [2024-11-27 23:25:44,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-27 23:25:44,691 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:44,691 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:44,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 23:25:44,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:44,892 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:44,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:44,893 INFO L85 PathProgramCache]: Analyzing trace with hash -569855280, now seen corresponding path program 1 times [2024-11-27 23:25:44,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:44,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298600281] [2024-11-27 23:25:44,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:44,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:45,013 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-27 23:25:45,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:45,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298600281] [2024-11-27 23:25:45,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298600281] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:25:45,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329889173] [2024-11-27 23:25:45,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:45,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:45,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:25:45,018 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:25:45,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918da52-95fe-4d04-809c-97231ec35547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 23:25:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:45,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 23:25:45,183 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:25:45,383 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-27 23:25:45,383 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:25:45,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329889173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:45,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:25:45,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-27 23:25:45,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674992065] [2024-11-27 23:25:45,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:45,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:45,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:45,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:45,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:45,386 INFO L87 Difference]: Start difference. First operand 40405 states and 62083 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-27 23:25:51,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:51,868 INFO L93 Difference]: Finished difference Result 119738 states and 185227 transitions. [2024-11-27 23:25:51,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:51,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 187 [2024-11-27 23:25:51,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:52,174 INFO L225 Difference]: With dead ends: 119738 [2024-11-27 23:25:52,174 INFO L226 Difference]: Without dead ends: 79347 [2024-11-27 23:25:52,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:25:52,268 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 151 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:52,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 488 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:52,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79347 states.