./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label40+token_ring.03.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label40+token_ring.03.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/bin/uautomizer-verify-VRDe98Ueme --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 2f6e67caa8159a722902bebe9d23adade07462f3fac0eb20b485945b97ba6592 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:05:54,416 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:05:54,542 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 12:05:54,554 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:05:54,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:05:54,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:05:54,590 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:05:54,591 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:05:54,592 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:05:54,593 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:05:54,594 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:05:54,594 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:05:54,596 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:05:54,599 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:05:54,599 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:05:54,601 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:05:54,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:05:54,608 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:05:54,609 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:05:54,609 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:05:54,612 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:05:54,612 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:05:54,613 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:05:54,614 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:05:54,614 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:05:54,615 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:05:54,615 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:05:54,616 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:05:54,617 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:05:54,617 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:05:54,619 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:05:54,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:05:54,620 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:05:54,620 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:05:54,621 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:05:54,621 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:05:54,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:05:54,622 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:05:54,622 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:05:54,622 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:05:54,623 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:05:54,623 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:05:54,623 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f6e67caa8159a722902bebe9d23adade07462f3fac0eb20b485945b97ba6592 [2023-11-26 12:05:54,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:05:54,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:05:54,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:05:54,980 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:05:54,980 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:05:54,982 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/combinations/Problem05_label40+token_ring.03.cil-2.c [2023-11-26 12:05:58,265 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:05:59,128 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:05:59,129 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/sv-benchmarks/c/combinations/Problem05_label40+token_ring.03.cil-2.c [2023-11-26 12:05:59,194 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/bin/uautomizer-verify-VRDe98Ueme/data/3f87ea6c6/ceab7ad1eb614903986148e2983451a2/FLAGf47196a82 [2023-11-26 12:05:59,212 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/bin/uautomizer-verify-VRDe98Ueme/data/3f87ea6c6/ceab7ad1eb614903986148e2983451a2 [2023-11-26 12:05:59,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:05:59,216 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:05:59,218 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:05:59,218 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:05:59,225 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:05:59,226 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:59" (1/1) ... [2023-11-26 12:05:59,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77cdb3be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:59, skipping insertion in model container [2023-11-26 12:05:59,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:59" (1/1) ... [2023-11-26 12:05:59,542 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:06:02,091 WARN L240 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_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/sv-benchmarks/c/combinations/Problem05_label40+token_ring.03.cil-2.c[377069,377082] [2023-11-26 12:06:02,131 WARN L240 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_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/sv-benchmarks/c/combinations/Problem05_label40+token_ring.03.cil-2.c[383339,383352] [2023-11-26 12:06:02,362 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:06:02,382 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:06:03,702 WARN L240 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_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/sv-benchmarks/c/combinations/Problem05_label40+token_ring.03.cil-2.c[377069,377082] [2023-11-26 12:06:03,713 WARN L240 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_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/sv-benchmarks/c/combinations/Problem05_label40+token_ring.03.cil-2.c[383339,383352] [2023-11-26 12:06:03,739 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:06:03,822 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:06:03,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:03 WrapperNode [2023-11-26 12:06:03,824 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:06:03,825 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:06:03,825 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:06:03,826 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:06:03,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:03" (1/1) ... [2023-11-26 12:06:03,965 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:03" (1/1) ... [2023-11-26 12:06:04,488 INFO L138 Inliner]: procedures = 50, calls = 50, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 12688 [2023-11-26 12:06:04,489 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:06:04,490 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:06:04,490 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:06:04,490 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:06:04,505 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:03" (1/1) ... [2023-11-26 12:06:04,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:03" (1/1) ... [2023-11-26 12:06:04,593 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:03" (1/1) ... [2023-11-26 12:06:04,797 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]. [2023-11-26 12:06:04,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:03" (1/1) ... [2023-11-26 12:06:04,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:03" (1/1) ... [2023-11-26 12:06:05,288 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:03" (1/1) ... [2023-11-26 12:06:05,379 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:03" (1/1) ... [2023-11-26 12:06:05,438 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:03" (1/1) ... [2023-11-26 12:06:05,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:03" (1/1) ... [2023-11-26 12:06:05,574 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:06:05,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:06:05,576 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:06:05,576 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:06:05,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:03" (1/1) ... [2023-11-26 12:06:05,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:06:05,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:05,665 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:06:05,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:06:05,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:06:05,814 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-11-26 12:06:05,814 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-11-26 12:06:05,815 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-11-26 12:06:05,815 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-11-26 12:06:05,815 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-11-26 12:06:05,815 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-11-26 12:06:05,817 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-11-26 12:06:05,817 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-11-26 12:06:05,817 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-11-26 12:06:05,817 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-11-26 12:06:05,818 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-11-26 12:06:05,818 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-11-26 12:06:05,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:06:05,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:06:05,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:06:05,947 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:06:05,949 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:06:16,685 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:06:16,789 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:06:16,789 INFO L309 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-26 12:06:16,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:06:16 BoogieIcfgContainer [2023-11-26 12:06:16,791 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:06:16,794 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:06:16,794 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:06:16,798 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:06:16,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:05:59" (1/3) ... [2023-11-26 12:06:16,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b806398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:06:16, skipping insertion in model container [2023-11-26 12:06:16,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:03" (2/3) ... [2023-11-26 12:06:16,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b806398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:06:16, skipping insertion in model container [2023-11-26 12:06:16,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:06:16" (3/3) ... [2023-11-26 12:06:16,802 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label40+token_ring.03.cil-2.c [2023-11-26 12:06:16,823 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:06:16,823 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 12:06:16,934 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:06:16,942 INFO L357 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, mHoare=true, 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;@48326ebe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:06:16,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 12:06:16,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 2264 states, 2238 states have (on average 1.8847184986595173) internal successors, (4218), 2241 states have internal predecessors, (4218), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-26 12:06:16,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-26 12:06:16,984 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:16,988 INFO L195 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] [2023-11-26 12:06:16,989 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:16,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:16,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1010118271, now seen corresponding path program 1 times [2023-11-26 12:06:17,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:17,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035151290] [2023-11-26 12:06:17,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:17,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:17,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 12:06:17,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:17,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 12:06:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:17,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-26 12:06:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:17,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-26 12:06:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:17,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 12:06:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:17,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:17,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:17,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035151290] [2023-11-26 12:06:17,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035151290] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:17,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:17,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 12:06:17,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636706933] [2023-11-26 12:06:17,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:17,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:06:17,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:17,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:06:17,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:06:17,692 INFO L87 Difference]: Start difference. First operand has 2264 states, 2238 states have (on average 1.8847184986595173) internal successors, (4218), 2241 states have internal predecessors, (4218), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 12:06:19,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:19,651 INFO L93 Difference]: Finished difference Result 4732 states and 8845 transitions. [2023-11-26 12:06:19,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 12:06:19,654 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-11-26 12:06:19,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:19,690 INFO L225 Difference]: With dead ends: 4732 [2023-11-26 12:06:19,690 INFO L226 Difference]: Without dead ends: 2471 [2023-11-26 12:06:19,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-26 12:06:19,705 INFO L413 NwaCegarLoop]: 4074 mSDtfsCounter, 4459 mSDsluCounter, 12195 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4469 SdHoareTripleChecker+Valid, 16269 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:19,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4469 Valid, 16269 Invalid, 864 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [72 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-26 12:06:19,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2023-11-26 12:06:19,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2392. [2023-11-26 12:06:19,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 2348 states have (on average 1.8373083475298126) internal successors, (4314), 2351 states have internal predecessors, (4314), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (32), 29 states have call predecessors, (32), 29 states have call successors, (32) [2023-11-26 12:06:19,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 4375 transitions. [2023-11-26 12:06:19,898 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 4375 transitions. Word has length 71 [2023-11-26 12:06:19,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:19,899 INFO L495 AbstractCegarLoop]: Abstraction has 2392 states and 4375 transitions. [2023-11-26 12:06:19,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 12:06:19,900 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 4375 transitions. [2023-11-26 12:06:19,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-26 12:06:19,905 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:19,906 INFO L195 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] [2023-11-26 12:06:19,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:06:19,907 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:19,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:19,908 INFO L85 PathProgramCache]: Analyzing trace with hash -308869883, now seen corresponding path program 1 times [2023-11-26 12:06:19,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:19,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146596510] [2023-11-26 12:06:19,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:19,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:20,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 12:06:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:20,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 12:06:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:20,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-26 12:06:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:20,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-26 12:06:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:20,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 12:06:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:20,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:20,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:20,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146596510] [2023-11-26 12:06:20,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146596510] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:20,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:20,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 12:06:20,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360035729] [2023-11-26 12:06:20,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:20,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:06:20,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:20,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:06:20,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:06:20,300 INFO L87 Difference]: Start difference. First operand 2392 states and 4375 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 12:06:22,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:22,251 INFO L93 Difference]: Finished difference Result 2906 states and 5181 transitions. [2023-11-26 12:06:22,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 12:06:22,253 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-11-26 12:06:22,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:22,274 INFO L225 Difference]: With dead ends: 2906 [2023-11-26 12:06:22,274 INFO L226 Difference]: Without dead ends: 2644 [2023-11-26 12:06:22,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-11-26 12:06:22,278 INFO L413 NwaCegarLoop]: 4151 mSDtfsCounter, 4453 mSDsluCounter, 16419 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4463 SdHoareTripleChecker+Valid, 20570 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:22,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4463 Valid, 20570 Invalid, 1329 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [43 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-26 12:06:22,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2644 states. [2023-11-26 12:06:22,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2644 to 2515. [2023-11-26 12:06:22,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2515 states, 2452 states have (on average 1.8242251223491028) internal successors, (4473), 2456 states have internal predecessors, (4473), 41 states have call successors, (41), 18 states have call predecessors, (41), 20 states have return successors, (46), 42 states have call predecessors, (46), 41 states have call successors, (46) [2023-11-26 12:06:22,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2515 states to 2515 states and 4560 transitions. [2023-11-26 12:06:22,419 INFO L78 Accepts]: Start accepts. Automaton has 2515 states and 4560 transitions. Word has length 71 [2023-11-26 12:06:22,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:22,419 INFO L495 AbstractCegarLoop]: Abstraction has 2515 states and 4560 transitions. [2023-11-26 12:06:22,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 12:06:22,420 INFO L276 IsEmpty]: Start isEmpty. Operand 2515 states and 4560 transitions. [2023-11-26 12:06:22,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-26 12:06:22,423 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:22,424 INFO L195 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] [2023-11-26 12:06:22,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:06:22,424 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:22,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:22,425 INFO L85 PathProgramCache]: Analyzing trace with hash 124859203, now seen corresponding path program 1 times [2023-11-26 12:06:22,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:22,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879421858] [2023-11-26 12:06:22,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:22,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:22,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 12:06:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:22,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 12:06:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:22,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-26 12:06:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:22,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-26 12:06:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:22,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 12:06:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:22,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:22,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:22,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879421858] [2023-11-26 12:06:22,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879421858] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:22,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:22,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 12:06:22,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324375115] [2023-11-26 12:06:22,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:22,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:06:22,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:22,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:06:22,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:06:22,640 INFO L87 Difference]: Start difference. First operand 2515 states and 4560 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 12:06:24,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:24,329 INFO L93 Difference]: Finished difference Result 3352 states and 5868 transitions. [2023-11-26 12:06:24,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 12:06:24,330 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-11-26 12:06:24,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:24,350 INFO L225 Difference]: With dead ends: 3352 [2023-11-26 12:06:24,350 INFO L226 Difference]: Without dead ends: 2967 [2023-11-26 12:06:24,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-11-26 12:06:24,354 INFO L413 NwaCegarLoop]: 4149 mSDtfsCounter, 4451 mSDsluCounter, 16419 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4461 SdHoareTripleChecker+Valid, 20568 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:24,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4461 Valid, 20568 Invalid, 1327 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [45 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-26 12:06:24,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2967 states. [2023-11-26 12:06:24,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2967 to 2762. [2023-11-26 12:06:24,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2661 states have (on average 1.8008267568583238) internal successors, (4792), 2667 states have internal predecessors, (4792), 65 states have call successors, (65), 30 states have call predecessors, (65), 34 states have return successors, (78), 68 states have call predecessors, (78), 65 states have call successors, (78) [2023-11-26 12:06:24,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 4935 transitions. [2023-11-26 12:06:24,477 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 4935 transitions. Word has length 71 [2023-11-26 12:06:24,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:24,477 INFO L495 AbstractCegarLoop]: Abstraction has 2762 states and 4935 transitions. [2023-11-26 12:06:24,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 12:06:24,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 4935 transitions. [2023-11-26 12:06:24,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-26 12:06:24,483 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:24,483 INFO L195 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] [2023-11-26 12:06:24,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:06:24,484 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:24,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:24,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1385776453, now seen corresponding path program 1 times [2023-11-26 12:06:24,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:24,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347310848] [2023-11-26 12:06:24,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:24,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:24,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 12:06:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:24,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 12:06:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:24,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-26 12:06:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:24,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-26 12:06:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:24,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 12:06:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:24,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:24,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:24,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347310848] [2023-11-26 12:06:24,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347310848] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:24,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:24,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 12:06:24,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565745729] [2023-11-26 12:06:24,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:24,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:06:24,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:24,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:06:24,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:06:24,681 INFO L87 Difference]: Start difference. First operand 2762 states and 4935 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 12:06:25,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:25,738 INFO L93 Difference]: Finished difference Result 3589 states and 6236 transitions. [2023-11-26 12:06:25,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:06:25,739 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-11-26 12:06:25,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:25,766 INFO L225 Difference]: With dead ends: 3589 [2023-11-26 12:06:25,767 INFO L226 Difference]: Without dead ends: 2957 [2023-11-26 12:06:25,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-26 12:06:25,783 INFO L413 NwaCegarLoop]: 4057 mSDtfsCounter, 4387 mSDsluCounter, 12099 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4398 SdHoareTripleChecker+Valid, 16156 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:25,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4398 Valid, 16156 Invalid, 636 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 12:06:25,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2023-11-26 12:06:25,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 2762. [2023-11-26 12:06:25,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2661 states have (on average 1.7989477639984968) internal successors, (4787), 2667 states have internal predecessors, (4787), 65 states have call successors, (65), 30 states have call predecessors, (65), 34 states have return successors, (78), 68 states have call predecessors, (78), 65 states have call successors, (78) [2023-11-26 12:06:25,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 4930 transitions. [2023-11-26 12:06:25,941 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 4930 transitions. Word has length 71 [2023-11-26 12:06:25,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:25,942 INFO L495 AbstractCegarLoop]: Abstraction has 2762 states and 4930 transitions. [2023-11-26 12:06:25,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 12:06:25,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 4930 transitions. [2023-11-26 12:06:25,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-26 12:06:25,946 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:25,946 INFO L195 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] [2023-11-26 12:06:25,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:06:25,947 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:25,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:25,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1426451203, now seen corresponding path program 1 times [2023-11-26 12:06:25,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:25,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739025640] [2023-11-26 12:06:25,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:25,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:26,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 12:06:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:26,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 12:06:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:26,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-26 12:06:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:26,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-26 12:06:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:26,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 12:06:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:26,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:26,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:26,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739025640] [2023-11-26 12:06:26,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739025640] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:26,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:26,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 12:06:26,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461486452] [2023-11-26 12:06:26,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:26,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:06:26,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:26,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:06:26,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:06:26,194 INFO L87 Difference]: Start difference. First operand 2762 states and 4930 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 12:06:28,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:28,384 INFO L93 Difference]: Finished difference Result 4380 states and 7425 transitions. [2023-11-26 12:06:28,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 12:06:28,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-11-26 12:06:28,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:28,409 INFO L225 Difference]: With dead ends: 4380 [2023-11-26 12:06:28,410 INFO L226 Difference]: Without dead ends: 3748 [2023-11-26 12:06:28,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-26 12:06:28,414 INFO L413 NwaCegarLoop]: 4147 mSDtfsCounter, 4558 mSDsluCounter, 16414 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4572 SdHoareTripleChecker+Valid, 20561 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:28,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4572 Valid, 20561 Invalid, 1287 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-26 12:06:28,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3748 states. [2023-11-26 12:06:28,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3748 to 3253. [2023-11-26 12:06:28,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3253 states, 3080 states have (on average 1.7603896103896104) internal successors, (5422), 3090 states have internal predecessors, (5422), 109 states have call successors, (109), 54 states have call predecessors, (109), 62 states have return successors, (144), 116 states have call predecessors, (144), 109 states have call successors, (144) [2023-11-26 12:06:28,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3253 states to 3253 states and 5675 transitions. [2023-11-26 12:06:28,596 INFO L78 Accepts]: Start accepts. Automaton has 3253 states and 5675 transitions. Word has length 71 [2023-11-26 12:06:28,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:28,597 INFO L495 AbstractCegarLoop]: Abstraction has 3253 states and 5675 transitions. [2023-11-26 12:06:28,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 12:06:28,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3253 states and 5675 transitions. [2023-11-26 12:06:28,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-26 12:06:28,600 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:28,601 INFO L195 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] [2023-11-26 12:06:28,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:06:28,601 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:28,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:28,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1481730683, now seen corresponding path program 1 times [2023-11-26 12:06:28,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:28,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010804507] [2023-11-26 12:06:28,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:28,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:28,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 12:06:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:28,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 12:06:28,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:28,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-26 12:06:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:28,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-26 12:06:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:28,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 12:06:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:28,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:28,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:28,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010804507] [2023-11-26 12:06:28,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010804507] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:28,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:28,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 12:06:28,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705850485] [2023-11-26 12:06:28,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:28,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:06:28,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:28,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:06:28,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:06:28,849 INFO L87 Difference]: Start difference. First operand 3253 states and 5675 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 12:06:30,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:30,593 INFO L93 Difference]: Finished difference Result 6161 states and 10154 transitions. [2023-11-26 12:06:30,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 12:06:30,594 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-11-26 12:06:30,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:30,628 INFO L225 Difference]: With dead ends: 6161 [2023-11-26 12:06:30,629 INFO L226 Difference]: Without dead ends: 5038 [2023-11-26 12:06:30,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-26 12:06:30,636 INFO L413 NwaCegarLoop]: 4146 mSDtfsCounter, 4460 mSDsluCounter, 16411 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4469 SdHoareTripleChecker+Valid, 20557 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:30,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4469 Valid, 20557 Invalid, 1444 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-26 12:06:30,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5038 states. [2023-11-26 12:06:30,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5038 to 4191. [2023-11-26 12:06:30,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4191 states, 3878 states have (on average 1.709128416709644) internal successors, (6628), 3896 states have internal predecessors, (6628), 193 states have call successors, (193), 102 states have call predecessors, (193), 118 states have return successors, (290), 208 states have call predecessors, (290), 193 states have call successors, (290) [2023-11-26 12:06:30,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4191 states to 4191 states and 7111 transitions. [2023-11-26 12:06:30,903 INFO L78 Accepts]: Start accepts. Automaton has 4191 states and 7111 transitions. Word has length 71 [2023-11-26 12:06:30,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:30,903 INFO L495 AbstractCegarLoop]: Abstraction has 4191 states and 7111 transitions. [2023-11-26 12:06:30,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 12:06:30,905 INFO L276 IsEmpty]: Start isEmpty. Operand 4191 states and 7111 transitions. [2023-11-26 12:06:30,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-26 12:06:30,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:30,975 INFO L195 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] [2023-11-26 12:06:30,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 12:06:30,975 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:30,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:30,976 INFO L85 PathProgramCache]: Analyzing trace with hash -605711677, now seen corresponding path program 1 times [2023-11-26 12:06:30,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:30,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820502548] [2023-11-26 12:06:30,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:30,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:31,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 12:06:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:31,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 12:06:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:31,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-26 12:06:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:31,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-26 12:06:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:31,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 12:06:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:31,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:31,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:31,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820502548] [2023-11-26 12:06:31,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820502548] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:31,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:31,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 12:06:31,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601390716] [2023-11-26 12:06:31,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:31,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:06:31,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:31,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:06:31,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:06:31,180 INFO L87 Difference]: Start difference. First operand 4191 states and 7111 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 12:06:33,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:33,270 INFO L93 Difference]: Finished difference Result 9281 states and 14962 transitions. [2023-11-26 12:06:33,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 12:06:33,271 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-11-26 12:06:33,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:33,349 INFO L225 Difference]: With dead ends: 9281 [2023-11-26 12:06:33,351 INFO L226 Difference]: Without dead ends: 7220 [2023-11-26 12:06:33,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-26 12:06:33,363 INFO L413 NwaCegarLoop]: 4147 mSDtfsCounter, 4448 mSDsluCounter, 16414 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4462 SdHoareTripleChecker+Valid, 20561 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:33,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4462 Valid, 20561 Invalid, 1244 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [49 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-26 12:06:33,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7220 states. [2023-11-26 12:06:33,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7220 to 6122. [2023-11-26 12:06:33,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 5537 states have (on average 1.6525194148455842) internal successors, (9150), 5571 states have internal predecessors, (9150), 353 states have call successors, (353), 198 states have call predecessors, (353), 230 states have return successors, (628), 384 states have call predecessors, (628), 353 states have call successors, (628) [2023-11-26 12:06:33,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 10131 transitions. [2023-11-26 12:06:33,874 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 10131 transitions. Word has length 71 [2023-11-26 12:06:33,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:33,876 INFO L495 AbstractCegarLoop]: Abstraction has 6122 states and 10131 transitions. [2023-11-26 12:06:33,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 12:06:33,877 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 10131 transitions. [2023-11-26 12:06:33,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-26 12:06:33,888 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:33,888 INFO L195 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] [2023-11-26 12:06:33,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 12:06:33,889 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:33,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:33,889 INFO L85 PathProgramCache]: Analyzing trace with hash 932628353, now seen corresponding path program 1 times [2023-11-26 12:06:33,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:33,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337036786] [2023-11-26 12:06:33,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:33,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:33,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 12:06:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:33,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 12:06:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:34,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-26 12:06:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:34,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-26 12:06:34,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:34,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 12:06:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:34,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:34,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:34,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337036786] [2023-11-26 12:06:34,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337036786] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:34,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:34,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 12:06:34,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513416343] [2023-11-26 12:06:34,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:34,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:06:34,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:34,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:06:34,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:06:34,110 INFO L87 Difference]: Start difference. First operand 6122 states and 10131 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 12:06:36,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:36,137 INFO L93 Difference]: Finished difference Result 13461 states and 21515 transitions. [2023-11-26 12:06:36,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 12:06:36,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-11-26 12:06:36,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:36,177 INFO L225 Difference]: With dead ends: 13461 [2023-11-26 12:06:36,177 INFO L226 Difference]: Without dead ends: 9470 [2023-11-26 12:06:36,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-26 12:06:36,197 INFO L413 NwaCegarLoop]: 4178 mSDtfsCounter, 4606 mSDsluCounter, 12239 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4633 SdHoareTripleChecker+Valid, 16417 SdHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:36,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4633 Valid, 16417 Invalid, 1099 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-26 12:06:36,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9470 states. [2023-11-26 12:06:36,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9470 to 8136. [2023-11-26 12:06:36,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8136 states, 7244 states have (on average 1.6114025400331309) internal successors, (11673), 7311 states have internal predecessors, (11673), 542 states have call successors, (542), 300 states have call predecessors, (542), 348 states have return successors, (899), 556 states have call predecessors, (899), 542 states have call successors, (899) [2023-11-26 12:06:36,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8136 states to 8136 states and 13114 transitions. [2023-11-26 12:06:36,692 INFO L78 Accepts]: Start accepts. Automaton has 8136 states and 13114 transitions. Word has length 71 [2023-11-26 12:06:36,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:36,694 INFO L495 AbstractCegarLoop]: Abstraction has 8136 states and 13114 transitions. [2023-11-26 12:06:36,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 12:06:36,694 INFO L276 IsEmpty]: Start isEmpty. Operand 8136 states and 13114 transitions. [2023-11-26 12:06:36,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-26 12:06:36,716 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:36,716 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:36,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 12:06:36,717 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:06:36,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:36,719 INFO L85 PathProgramCache]: Analyzing trace with hash 919759115, now seen corresponding path program 1 times [2023-11-26 12:06:36,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:36,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30877184] [2023-11-26 12:06:36,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:36,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:36,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 12:06:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:36,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 12:06:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:36,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-26 12:06:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:36,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-26 12:06:36,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:36,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 12:06:36,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:36,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-26 12:06:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:36,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-26 12:06:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:36,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-26 12:06:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:36,911 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-26 12:06:36,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:36,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30877184] [2023-11-26 12:06:36,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30877184] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:06:36,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709163616] [2023-11-26 12:06:36,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:36,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:36,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:36,916 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:36,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd32fe4c-d0ca-43c0-91be-1981c9ef2b67/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 12:06:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:37,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:06:37,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:37,205 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 12:06:37,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:06:37,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709163616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:37,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:06:37,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-11-26 12:06:37,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987118011] [2023-11-26 12:06:37,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:37,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:37,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:37,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:37,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:06:37,208 INFO L87 Difference]: Start difference. First operand 8136 states and 13114 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 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) [2023-11-26 12:06:38,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:38,009 INFO L93 Difference]: Finished difference Result 19993 states and 31344 transitions. [2023-11-26 12:06:38,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:38,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 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 115 [2023-11-26 12:06:38,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:38,060 INFO L225 Difference]: With dead ends: 19993 [2023-11-26 12:06:38,060 INFO L226 Difference]: Without dead ends: 13988 [2023-11-26 12:06:38,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:06:38,087 INFO L413 NwaCegarLoop]: 4149 mSDtfsCounter, 4122 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4122 SdHoareTripleChecker+Valid, 4322 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:38,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4122 Valid, 4322 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:06:38,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13988 states.