./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c74c5a9435f0a63b4462639dc1dbde4e8823a1089df2fad63ca5f5dce7dc603 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 05:58:05,218 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 05:58:05,275 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 05:58:05,280 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 05:58:05,280 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 05:58:05,301 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 05:58:05,302 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 05:58:05,302 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 05:58:05,302 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 05:58:05,302 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 05:58:05,302 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 05:58:05,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 05:58:05,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 05:58:05,303 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 05:58:05,303 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 05:58:05,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 05:58:05,303 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 05:58:05,303 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 05:58:05,304 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 05:58:05,304 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 05:58:05,304 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 05:58:05,304 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 05:58:05,304 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 05:58:05,304 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 05:58:05,304 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 05:58:05,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 05:58:05,304 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 05:58:05,304 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 05:58:05,305 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 05:58:05,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:58:05,305 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:58:05,305 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:58:05,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:58:05,305 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 05:58:05,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:58:05,305 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:58:05,305 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:58:05,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:58:05,306 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 05:58:05,306 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 05:58:05,306 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 05:58:05,306 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 05:58:05,306 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 05:58:05,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 05:58:05,306 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 05:58:05,306 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 05:58:05,306 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 05:58:05,306 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 05:58:05,307 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c74c5a9435f0a63b4462639dc1dbde4e8823a1089df2fad63ca5f5dce7dc603 [2024-12-02 05:58:05,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 05:58:05,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 05:58:05,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 05:58:05,539 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 05:58:05,539 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 05:58:05,540 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c [2024-12-02 05:58:08,219 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/data/6f230b6f8/9f1bb00312694a39bf74c4328b474a55/FLAGad2b4d297 [2024-12-02 05:58:08,652 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 05:58:08,652 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c [2024-12-02 05:58:08,685 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/data/6f230b6f8/9f1bb00312694a39bf74c4328b474a55/FLAGad2b4d297 [2024-12-02 05:58:08,702 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/data/6f230b6f8/9f1bb00312694a39bf74c4328b474a55 [2024-12-02 05:58:08,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 05:58:08,706 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 05:58:08,708 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 05:58:08,708 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 05:58:08,713 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 05:58:08,714 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:58:08" (1/1) ... [2024-12-02 05:58:08,715 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ad798c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:08, skipping insertion in model container [2024-12-02 05:58:08,715 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:58:08" (1/1) ... [2024-12-02 05:58:08,820 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 05:58:09,157 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c[26860,26873] [2024-12-02 05:58:09,187 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c[28735,28748] [2024-12-02 05:58:09,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:58:09,794 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 05:58:09,833 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c[26860,26873] [2024-12-02 05:58:09,837 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c[28735,28748] [2024-12-02 05:58:10,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:58:10,269 INFO L204 MainTranslator]: Completed translation [2024-12-02 05:58:10,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:10 WrapperNode [2024-12-02 05:58:10,270 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 05:58:10,271 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 05:58:10,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 05:58:10,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 05:58:10,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:10" (1/1) ... [2024-12-02 05:58:10,316 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:10" (1/1) ... [2024-12-02 05:58:10,609 INFO L138 Inliner]: procedures = 39, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5291 [2024-12-02 05:58:10,610 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 05:58:10,610 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 05:58:10,610 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 05:58:10,610 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 05:58:10,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:10" (1/1) ... [2024-12-02 05:58:10,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:10" (1/1) ... [2024-12-02 05:58:10,668 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:10" (1/1) ... [2024-12-02 05:58:10,848 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 05:58:10,848 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:10" (1/1) ... [2024-12-02 05:58:10,848 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:10" (1/1) ... [2024-12-02 05:58:10,937 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:10" (1/1) ... [2024-12-02 05:58:10,947 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:10" (1/1) ... [2024-12-02 05:58:10,966 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:10" (1/1) ... [2024-12-02 05:58:10,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:10" (1/1) ... [2024-12-02 05:58:11,005 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:10" (1/1) ... [2024-12-02 05:58:11,061 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 05:58:11,062 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 05:58:11,062 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 05:58:11,062 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 05:58:11,063 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:10" (1/1) ... [2024-12-02 05:58:11,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:58:11,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:58:11,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 05:58:11,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 05:58:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 05:58:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 05:58:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 05:58:11,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 05:58:11,246 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 05:58:11,248 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 05:58:16,343 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-12-02 05:58:16,343 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 05:58:16,369 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 05:58:16,369 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 05:58:16,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:58:16 BoogieIcfgContainer [2024-12-02 05:58:16,370 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 05:58:16,372 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 05:58:16,372 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 05:58:16,376 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 05:58:16,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:58:08" (1/3) ... [2024-12-02 05:58:16,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c921bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:58:16, skipping insertion in model container [2024-12-02 05:58:16,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:58:10" (2/3) ... [2024-12-02 05:58:16,377 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c921bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:58:16, skipping insertion in model container [2024-12-02 05:58:16,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:58:16" (3/3) ... [2024-12-02 05:58:16,378 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c [2024-12-02 05:58:16,393 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 05:58:16,396 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c that has 1 procedures, 948 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 05:58:16,476 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 05:58:16,491 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5ddffcaa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 05:58:16,492 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 05:58:16,499 INFO L276 IsEmpty]: Start isEmpty. Operand has 948 states, 945 states have (on average 1.9026455026455027) internal successors, (1798), 947 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:16,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-02 05:58:16,504 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:16,505 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:16,505 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:16,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:16,510 INFO L85 PathProgramCache]: Analyzing trace with hash 572502965, now seen corresponding path program 1 times [2024-12-02 05:58:16,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:58:16,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190102268] [2024-12-02 05:58:16,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:16,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:58:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:16,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:58:16,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:58:16,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190102268] [2024-12-02 05:58:16,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190102268] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:16,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:16,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 05:58:16,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198684057] [2024-12-02 05:58:16,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:16,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:58:16,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:58:16,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:58:16,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:16,832 INFO L87 Difference]: Start difference. First operand has 948 states, 945 states have (on average 1.9026455026455027) internal successors, (1798), 947 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:20,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:20,186 INFO L93 Difference]: Finished difference Result 2584 states and 4968 transitions. [2024-12-02 05:58:20,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:58:20,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-12-02 05:58:20,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:20,200 INFO L225 Difference]: With dead ends: 2584 [2024-12-02 05:58:20,200 INFO L226 Difference]: Without dead ends: 1633 [2024-12-02 05:58:20,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:20,206 INFO L435 NwaCegarLoop]: 376 mSDtfsCounter, 1111 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 3208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:20,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 387 Invalid, 3208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-12-02 05:58:20,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-12-02 05:58:20,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1633. [2024-12-02 05:58:20,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1633 states, 1631 states have (on average 1.8418148375229921) internal successors, (3004), 1632 states have internal predecessors, (3004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:20,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 3004 transitions. [2024-12-02 05:58:20,290 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 3004 transitions. Word has length 16 [2024-12-02 05:58:20,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:20,291 INFO L471 AbstractCegarLoop]: Abstraction has 1633 states and 3004 transitions. [2024-12-02 05:58:20,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:20,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 3004 transitions. [2024-12-02 05:58:20,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-02 05:58:20,292 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:20,292 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:20,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 05:58:20,293 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:20,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:20,293 INFO L85 PathProgramCache]: Analyzing trace with hash 748011111, now seen corresponding path program 1 times [2024-12-02 05:58:20,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:58:20,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073596970] [2024-12-02 05:58:20,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:20,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:58:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:20,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:58:20,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:58:20,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073596970] [2024-12-02 05:58:20,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073596970] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:20,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:20,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:58:20,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632111768] [2024-12-02 05:58:20,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:20,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:58:20,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:58:20,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:58:20,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:58:20,560 INFO L87 Difference]: Start difference. First operand 1633 states and 3004 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:20,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:20,671 INFO L93 Difference]: Finished difference Result 1698 states and 3106 transitions. [2024-12-02 05:58:20,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:58:20,672 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-12-02 05:58:20,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:20,679 INFO L225 Difference]: With dead ends: 1698 [2024-12-02 05:58:20,679 INFO L226 Difference]: Without dead ends: 1633 [2024-12-02 05:58:20,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:58:20,681 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 0 mSDsluCounter, 4923 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6586 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:20,682 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6586 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:58:20,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-12-02 05:58:20,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1633. [2024-12-02 05:58:20,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1633 states, 1631 states have (on average 1.804414469650521) internal successors, (2943), 1632 states have internal predecessors, (2943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:20,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 2943 transitions. [2024-12-02 05:58:20,727 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 2943 transitions. Word has length 31 [2024-12-02 05:58:20,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:20,728 INFO L471 AbstractCegarLoop]: Abstraction has 1633 states and 2943 transitions. [2024-12-02 05:58:20,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:20,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 2943 transitions. [2024-12-02 05:58:20,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 05:58:20,731 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:20,731 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:20,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 05:58:20,731 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:20,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:20,732 INFO L85 PathProgramCache]: Analyzing trace with hash 797037153, now seen corresponding path program 1 times [2024-12-02 05:58:20,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:58:20,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829179480] [2024-12-02 05:58:20,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:20,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:58:20,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:21,065 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:58:21,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:58:21,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829179480] [2024-12-02 05:58:21,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829179480] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:21,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:21,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 05:58:21,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777576259] [2024-12-02 05:58:21,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:21,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:58:21,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:58:21,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:58:21,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:21,067 INFO L87 Difference]: Start difference. First operand 1633 states and 2943 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:24,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:24,652 INFO L93 Difference]: Finished difference Result 4641 states and 8495 transitions. [2024-12-02 05:58:24,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:58:24,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-12-02 05:58:24,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:24,664 INFO L225 Difference]: With dead ends: 4641 [2024-12-02 05:58:24,664 INFO L226 Difference]: Without dead ends: 3137 [2024-12-02 05:58:24,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:24,668 INFO L435 NwaCegarLoop]: 632 mSDtfsCounter, 896 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:24,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 639 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-02 05:58:24,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3137 states. [2024-12-02 05:58:24,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3137 to 3135. [2024-12-02 05:58:24,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 3133 states have (on average 1.5531439514842005) internal successors, (4866), 3134 states have internal predecessors, (4866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:24,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 4866 transitions. [2024-12-02 05:58:24,741 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 4866 transitions. Word has length 85 [2024-12-02 05:58:24,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:24,741 INFO L471 AbstractCegarLoop]: Abstraction has 3135 states and 4866 transitions. [2024-12-02 05:58:24,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:24,741 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 4866 transitions. [2024-12-02 05:58:24,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-02 05:58:24,744 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:24,744 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:24,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 05:58:24,744 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:24,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:24,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1767394918, now seen corresponding path program 1 times [2024-12-02 05:58:24,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:58:24,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056266743] [2024-12-02 05:58:24,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:24,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:58:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:24,898 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:58:24,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:58:24,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056266743] [2024-12-02 05:58:24,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056266743] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:24,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:24,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:58:24,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350361685] [2024-12-02 05:58:24,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:24,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:58:24,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:58:24,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:58:24,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:24,901 INFO L87 Difference]: Start difference. First operand 3135 states and 4866 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:28,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:28,131 INFO L93 Difference]: Finished difference Result 9145 states and 14263 transitions. [2024-12-02 05:58:28,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:58:28,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-12-02 05:58:28,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:28,144 INFO L225 Difference]: With dead ends: 9145 [2024-12-02 05:58:28,144 INFO L226 Difference]: Without dead ends: 6139 [2024-12-02 05:58:28,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:28,148 INFO L435 NwaCegarLoop]: 1577 mSDtfsCounter, 741 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 2538 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 2538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:28,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1750 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 2538 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-12-02 05:58:28,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2024-12-02 05:58:28,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 6139. [2024-12-02 05:58:28,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6139 states, 6137 states have (on average 1.4808538373798272) internal successors, (9088), 6138 states have internal predecessors, (9088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:28,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6139 states to 6139 states and 9088 transitions. [2024-12-02 05:58:28,225 INFO L78 Accepts]: Start accepts. Automaton has 6139 states and 9088 transitions. Word has length 87 [2024-12-02 05:58:28,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:28,225 INFO L471 AbstractCegarLoop]: Abstraction has 6139 states and 9088 transitions. [2024-12-02 05:58:28,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:28,226 INFO L276 IsEmpty]: Start isEmpty. Operand 6139 states and 9088 transitions. [2024-12-02 05:58:28,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 05:58:28,226 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:28,227 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:28,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 05:58:28,227 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:28,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:28,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1819257143, now seen corresponding path program 1 times [2024-12-02 05:58:28,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:58:28,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591454345] [2024-12-02 05:58:28,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:28,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:58:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:28,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:58:28,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:58:28,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591454345] [2024-12-02 05:58:28,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591454345] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:28,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:28,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 05:58:28,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015197128] [2024-12-02 05:58:28,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:28,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 05:58:28,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:58:28,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 05:58:28,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:58:28,503 INFO L87 Difference]: Start difference. First operand 6139 states and 9088 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:29,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:29,100 INFO L93 Difference]: Finished difference Result 7115 states and 10656 transitions. [2024-12-02 05:58:29,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 05:58:29,100 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-12-02 05:58:29,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:29,120 INFO L225 Difference]: With dead ends: 7115 [2024-12-02 05:58:29,120 INFO L226 Difference]: Without dead ends: 7054 [2024-12-02 05:58:29,122 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-12-02 05:58:29,123 INFO L435 NwaCegarLoop]: 1600 mSDtfsCounter, 13470 mSDsluCounter, 4611 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13470 SdHoareTripleChecker+Valid, 6211 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:29,123 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13470 Valid, 6211 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:58:29,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7054 states. [2024-12-02 05:58:29,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7054 to 6198. [2024-12-02 05:58:29,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6198 states, 6196 states have (on average 1.4820852162685603) internal successors, (9183), 6197 states have internal predecessors, (9183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:29,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6198 states to 6198 states and 9183 transitions. [2024-12-02 05:58:29,244 INFO L78 Accepts]: Start accepts. Automaton has 6198 states and 9183 transitions. Word has length 91 [2024-12-02 05:58:29,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:29,245 INFO L471 AbstractCegarLoop]: Abstraction has 6198 states and 9183 transitions. [2024-12-02 05:58:29,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:29,245 INFO L276 IsEmpty]: Start isEmpty. Operand 6198 states and 9183 transitions. [2024-12-02 05:58:29,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 05:58:29,246 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:29,246 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:29,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 05:58:29,246 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:29,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:29,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1161263545, now seen corresponding path program 1 times [2024-12-02 05:58:29,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:58:29,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555055623] [2024-12-02 05:58:29,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:29,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:58:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:29,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:58:29,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:58:29,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555055623] [2024-12-02 05:58:29,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555055623] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:29,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:29,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:58:29,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511736183] [2024-12-02 05:58:29,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:29,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:58:29,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:58:29,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:58:29,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:29,389 INFO L87 Difference]: Start difference. First operand 6198 states and 9183 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:29,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:29,443 INFO L93 Difference]: Finished difference Result 6427 states and 9550 transitions. [2024-12-02 05:58:29,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:58:29,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-12-02 05:58:29,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:29,464 INFO L225 Difference]: With dead ends: 6427 [2024-12-02 05:58:29,464 INFO L226 Difference]: Without dead ends: 6307 [2024-12-02 05:58:29,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:29,468 INFO L435 NwaCegarLoop]: 1602 mSDtfsCounter, 1506 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:29,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1695 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:58:29,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6307 states. [2024-12-02 05:58:29,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6307 to 6305. [2024-12-02 05:58:29,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6305 states, 6303 states have (on average 1.4838965571949865) internal successors, (9353), 6304 states have internal predecessors, (9353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:29,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6305 states to 6305 states and 9353 transitions. [2024-12-02 05:58:29,598 INFO L78 Accepts]: Start accepts. Automaton has 6305 states and 9353 transitions. Word has length 93 [2024-12-02 05:58:29,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:29,598 INFO L471 AbstractCegarLoop]: Abstraction has 6305 states and 9353 transitions. [2024-12-02 05:58:29,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:29,599 INFO L276 IsEmpty]: Start isEmpty. Operand 6305 states and 9353 transitions. [2024-12-02 05:58:29,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 05:58:29,600 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:29,600 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:29,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 05:58:29,600 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:29,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:29,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1094770033, now seen corresponding path program 1 times [2024-12-02 05:58:29,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:58:29,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058922619] [2024-12-02 05:58:29,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:29,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:58:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:30,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:58:30,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:58:30,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058922619] [2024-12-02 05:58:30,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058922619] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:30,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:30,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 05:58:30,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788188665] [2024-12-02 05:58:30,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:30,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 05:58:30,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:58:30,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 05:58:30,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:58:30,296 INFO L87 Difference]: Start difference. First operand 6305 states and 9353 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:30,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:30,788 INFO L93 Difference]: Finished difference Result 6534 states and 9717 transitions. [2024-12-02 05:58:30,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 05:58:30,789 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-12-02 05:58:30,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:30,805 INFO L225 Difference]: With dead ends: 6534 [2024-12-02 05:58:30,805 INFO L226 Difference]: Without dead ends: 6307 [2024-12-02 05:58:30,807 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-12-02 05:58:30,807 INFO L435 NwaCegarLoop]: 1594 mSDtfsCounter, 4602 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4602 SdHoareTripleChecker+Valid, 2268 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:30,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4602 Valid, 2268 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:58:30,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6307 states. [2024-12-02 05:58:30,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6307 to 6305. [2024-12-02 05:58:30,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6305 states, 6303 states have (on average 1.4835792479771537) internal successors, (9351), 6304 states have internal predecessors, (9351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:30,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6305 states to 6305 states and 9351 transitions. [2024-12-02 05:58:30,909 INFO L78 Accepts]: Start accepts. Automaton has 6305 states and 9351 transitions. Word has length 93 [2024-12-02 05:58:30,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:30,910 INFO L471 AbstractCegarLoop]: Abstraction has 6305 states and 9351 transitions. [2024-12-02 05:58:30,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:30,910 INFO L276 IsEmpty]: Start isEmpty. Operand 6305 states and 9351 transitions. [2024-12-02 05:58:30,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 05:58:30,912 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:30,912 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:30,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 05:58:30,912 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:30,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:30,912 INFO L85 PathProgramCache]: Analyzing trace with hash -50652555, now seen corresponding path program 1 times [2024-12-02 05:58:30,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:58:30,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733952330] [2024-12-02 05:58:30,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:30,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:58:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:31,160 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:58:31,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:58:31,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733952330] [2024-12-02 05:58:31,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733952330] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:31,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:31,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:58:31,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251526362] [2024-12-02 05:58:31,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:31,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:58:31,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:58:31,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:58:31,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:58:31,162 INFO L87 Difference]: Start difference. First operand 6305 states and 9351 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:35,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:35,679 INFO L93 Difference]: Finished difference Result 13066 states and 19215 transitions. [2024-12-02 05:58:35,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:58:35,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-12-02 05:58:35,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:35,689 INFO L225 Difference]: With dead ends: 13066 [2024-12-02 05:58:35,689 INFO L226 Difference]: Without dead ends: 7056 [2024-12-02 05:58:35,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:58:35,695 INFO L435 NwaCegarLoop]: 406 mSDtfsCounter, 2511 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4864 mSolverCounterSat, 695 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2511 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 5559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 695 IncrementalHoareTripleChecker+Valid, 4864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:35,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2511 Valid, 423 Invalid, 5559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [695 Valid, 4864 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-12-02 05:58:35,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7056 states. [2024-12-02 05:58:35,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7056 to 7056. [2024-12-02 05:58:35,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7056 states, 7054 states have (on average 1.409129571874114) internal successors, (9940), 7055 states have internal predecessors, (9940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:35,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7056 states to 7056 states and 9940 transitions. [2024-12-02 05:58:35,782 INFO L78 Accepts]: Start accepts. Automaton has 7056 states and 9940 transitions. Word has length 93 [2024-12-02 05:58:35,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:35,782 INFO L471 AbstractCegarLoop]: Abstraction has 7056 states and 9940 transitions. [2024-12-02 05:58:35,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:35,783 INFO L276 IsEmpty]: Start isEmpty. Operand 7056 states and 9940 transitions. [2024-12-02 05:58:35,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 05:58:35,784 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:35,784 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:35,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 05:58:35,784 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:35,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:35,785 INFO L85 PathProgramCache]: Analyzing trace with hash 7144525, now seen corresponding path program 1 times [2024-12-02 05:58:35,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:58:35,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415573476] [2024-12-02 05:58:35,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:35,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:58:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:36,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:58:36,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:58:36,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415573476] [2024-12-02 05:58:36,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415573476] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:36,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:36,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:58:36,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165777575] [2024-12-02 05:58:36,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:36,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:58:36,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:58:36,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:58:36,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:58:36,120 INFO L87 Difference]: Start difference. First operand 7056 states and 9940 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:36,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:36,179 INFO L93 Difference]: Finished difference Result 7064 states and 9949 transitions. [2024-12-02 05:58:36,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:58:36,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-12-02 05:58:36,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:36,197 INFO L225 Difference]: With dead ends: 7064 [2024-12-02 05:58:36,197 INFO L226 Difference]: Without dead ends: 7062 [2024-12-02 05:58:36,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:58:36,201 INFO L435 NwaCegarLoop]: 1601 mSDtfsCounter, 0 mSDsluCounter, 4794 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6395 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:36,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6395 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:58:36,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7062 states. [2024-12-02 05:58:36,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7062 to 7062. [2024-12-02 05:58:36,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7062 states, 7060 states have (on average 1.408640226628895) internal successors, (9945), 7061 states have internal predecessors, (9945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:36,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7062 states to 7062 states and 9945 transitions. [2024-12-02 05:58:36,343 INFO L78 Accepts]: Start accepts. Automaton has 7062 states and 9945 transitions. Word has length 94 [2024-12-02 05:58:36,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:36,344 INFO L471 AbstractCegarLoop]: Abstraction has 7062 states and 9945 transitions. [2024-12-02 05:58:36,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:36,344 INFO L276 IsEmpty]: Start isEmpty. Operand 7062 states and 9945 transitions. [2024-12-02 05:58:36,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 05:58:36,345 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:36,345 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:36,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 05:58:36,346 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:36,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:36,346 INFO L85 PathProgramCache]: Analyzing trace with hash 471923503, now seen corresponding path program 1 times [2024-12-02 05:58:36,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:58:36,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404024079] [2024-12-02 05:58:36,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:36,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:58:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:36,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:58:36,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:58:36,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404024079] [2024-12-02 05:58:36,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404024079] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:36,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:36,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:58:36,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281327951] [2024-12-02 05:58:36,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:36,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:58:36,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:58:36,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:58:36,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:36,454 INFO L87 Difference]: Start difference. First operand 7062 states and 9945 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:36,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:36,511 INFO L93 Difference]: Finished difference Result 7309 states and 10331 transitions. [2024-12-02 05:58:36,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:58:36,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 05:58:36,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:36,528 INFO L225 Difference]: With dead ends: 7309 [2024-12-02 05:58:36,528 INFO L226 Difference]: Without dead ends: 7183 [2024-12-02 05:58:36,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:36,531 INFO L435 NwaCegarLoop]: 1686 mSDtfsCounter, 1526 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:36,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1785 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:58:36,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7183 states. [2024-12-02 05:58:36,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7183 to 7181. [2024-12-02 05:58:36,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7181 states, 7179 states have (on average 1.4109207410502855) internal successors, (10129), 7180 states have internal predecessors, (10129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:36,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7181 states to 7181 states and 10129 transitions. [2024-12-02 05:58:36,631 INFO L78 Accepts]: Start accepts. Automaton has 7181 states and 10129 transitions. Word has length 95 [2024-12-02 05:58:36,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:36,631 INFO L471 AbstractCegarLoop]: Abstraction has 7181 states and 10129 transitions. [2024-12-02 05:58:36,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:36,632 INFO L276 IsEmpty]: Start isEmpty. Operand 7181 states and 10129 transitions. [2024-12-02 05:58:36,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 05:58:36,633 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:36,633 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:36,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 05:58:36,633 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:36,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:36,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1510056913, now seen corresponding path program 1 times [2024-12-02 05:58:36,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:58:36,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447553476] [2024-12-02 05:58:36,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:36,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:58:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:36,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:58:36,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:58:36,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447553476] [2024-12-02 05:58:36,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447553476] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:36,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:36,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:58:36,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419267532] [2024-12-02 05:58:36,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:36,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:58:36,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:58:36,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:58:36,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:36,733 INFO L87 Difference]: Start difference. First operand 7181 states and 10129 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:36,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:36,794 INFO L93 Difference]: Finished difference Result 7855 states and 11181 transitions. [2024-12-02 05:58:36,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:58:36,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 05:58:36,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:36,811 INFO L225 Difference]: With dead ends: 7855 [2024-12-02 05:58:36,812 INFO L226 Difference]: Without dead ends: 7506 [2024-12-02 05:58:36,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:36,815 INFO L435 NwaCegarLoop]: 1688 mSDtfsCounter, 1524 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:36,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:58:36,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7506 states. [2024-12-02 05:58:36,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7506 to 7504. [2024-12-02 05:58:36,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7504 states, 7502 states have (on average 1.416555585177286) internal successors, (10627), 7503 states have internal predecessors, (10627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:36,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7504 states to 7504 states and 10627 transitions. [2024-12-02 05:58:36,930 INFO L78 Accepts]: Start accepts. Automaton has 7504 states and 10627 transitions. Word has length 95 [2024-12-02 05:58:36,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:36,931 INFO L471 AbstractCegarLoop]: Abstraction has 7504 states and 10627 transitions. [2024-12-02 05:58:36,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:36,931 INFO L276 IsEmpty]: Start isEmpty. Operand 7504 states and 10627 transitions. [2024-12-02 05:58:36,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 05:58:36,932 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:36,932 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:36,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 05:58:36,932 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:36,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:36,933 INFO L85 PathProgramCache]: Analyzing trace with hash 594927151, now seen corresponding path program 1 times [2024-12-02 05:58:36,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:58:36,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878352890] [2024-12-02 05:58:36,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:36,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:58:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:37,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:58:37,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:58:37,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878352890] [2024-12-02 05:58:37,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878352890] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:37,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:37,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:58:37,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147410193] [2024-12-02 05:58:37,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:37,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:58:37,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:58:37,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:58:37,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:37,032 INFO L87 Difference]: Start difference. First operand 7504 states and 10627 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:37,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:37,096 INFO L93 Difference]: Finished difference Result 8800 states and 12633 transitions. [2024-12-02 05:58:37,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:58:37,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 05:58:37,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:37,114 INFO L225 Difference]: With dead ends: 8800 [2024-12-02 05:58:37,114 INFO L226 Difference]: Without dead ends: 8128 [2024-12-02 05:58:37,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:37,117 INFO L435 NwaCegarLoop]: 1676 mSDtfsCounter, 1520 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:37,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1787 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:58:37,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8128 states. [2024-12-02 05:58:37,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8128 to 8126. [2024-12-02 05:58:37,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8126 states, 8124 states have (on average 1.4247907434761202) internal successors, (11575), 8125 states have internal predecessors, (11575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:37,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8126 states to 8126 states and 11575 transitions. [2024-12-02 05:58:37,239 INFO L78 Accepts]: Start accepts. Automaton has 8126 states and 11575 transitions. Word has length 95 [2024-12-02 05:58:37,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:37,239 INFO L471 AbstractCegarLoop]: Abstraction has 8126 states and 11575 transitions. [2024-12-02 05:58:37,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:37,239 INFO L276 IsEmpty]: Start isEmpty. Operand 8126 states and 11575 transitions. [2024-12-02 05:58:37,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 05:58:37,240 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:37,240 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:37,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 05:58:37,241 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:37,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:37,241 INFO L85 PathProgramCache]: Analyzing trace with hash 858783535, now seen corresponding path program 1 times [2024-12-02 05:58:37,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:58:37,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444808547] [2024-12-02 05:58:37,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:37,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:58:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:37,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:58:37,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:58:37,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444808547] [2024-12-02 05:58:37,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444808547] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:37,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:37,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:58:37,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84369463] [2024-12-02 05:58:37,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:37,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:58:37,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:58:37,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:58:37,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:37,330 INFO L87 Difference]: Start difference. First operand 8126 states and 11575 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:37,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:37,409 INFO L93 Difference]: Finished difference Result 10618 states and 15393 transitions. [2024-12-02 05:58:37,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:58:37,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 05:58:37,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:37,430 INFO L225 Difference]: With dead ends: 10618 [2024-12-02 05:58:37,430 INFO L226 Difference]: Without dead ends: 9324 [2024-12-02 05:58:37,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:37,434 INFO L435 NwaCegarLoop]: 1674 mSDtfsCounter, 1518 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:37,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:58:37,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9324 states. [2024-12-02 05:58:37,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9324 to 9322. [2024-12-02 05:58:37,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9322 states, 9320 states have (on average 1.4350858369098713) internal successors, (13375), 9321 states have internal predecessors, (13375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:37,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9322 states to 9322 states and 13375 transitions. [2024-12-02 05:58:37,645 INFO L78 Accepts]: Start accepts. Automaton has 9322 states and 13375 transitions. Word has length 95 [2024-12-02 05:58:37,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:37,645 INFO L471 AbstractCegarLoop]: Abstraction has 9322 states and 13375 transitions. [2024-12-02 05:58:37,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:37,646 INFO L276 IsEmpty]: Start isEmpty. Operand 9322 states and 13375 transitions. [2024-12-02 05:58:37,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 05:58:37,647 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:37,647 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:37,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 05:58:37,647 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:37,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:37,648 INFO L85 PathProgramCache]: Analyzing trace with hash -118423249, now seen corresponding path program 1 times [2024-12-02 05:58:37,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:58:37,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209275076] [2024-12-02 05:58:37,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:37,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:58:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:37,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:58:37,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:58:37,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209275076] [2024-12-02 05:58:37,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209275076] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:37,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:37,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:58:37,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261593615] [2024-12-02 05:58:37,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:37,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:58:37,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:58:37,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:58:37,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:37,739 INFO L87 Difference]: Start difference. First operand 9322 states and 13375 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:37,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:37,865 INFO L93 Difference]: Finished difference Result 14110 states and 20625 transitions. [2024-12-02 05:58:37,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:58:37,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 05:58:37,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:37,893 INFO L225 Difference]: With dead ends: 14110 [2024-12-02 05:58:37,894 INFO L226 Difference]: Without dead ends: 11620 [2024-12-02 05:58:37,899 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:37,899 INFO L435 NwaCegarLoop]: 1662 mSDtfsCounter, 1514 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:37,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1785 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:58:37,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11620 states. [2024-12-02 05:58:38,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11620 to 11618. [2024-12-02 05:58:38,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11618 states, 11616 states have (on average 1.4448174931129476) internal successors, (16783), 11617 states have internal predecessors, (16783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:38,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11618 states to 11618 states and 16783 transitions. [2024-12-02 05:58:38,123 INFO L78 Accepts]: Start accepts. Automaton has 11618 states and 16783 transitions. Word has length 95 [2024-12-02 05:58:38,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:38,124 INFO L471 AbstractCegarLoop]: Abstraction has 11618 states and 16783 transitions. [2024-12-02 05:58:38,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:38,124 INFO L276 IsEmpty]: Start isEmpty. Operand 11618 states and 16783 transitions. [2024-12-02 05:58:38,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 05:58:38,125 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:38,125 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:38,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 05:58:38,125 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:38,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:38,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1662509615, now seen corresponding path program 1 times [2024-12-02 05:58:38,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:58:38,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075585651] [2024-12-02 05:58:38,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:38,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:58:38,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:38,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:58:38,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:58:38,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075585651] [2024-12-02 05:58:38,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075585651] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:38,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:38,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:58:38,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565198276] [2024-12-02 05:58:38,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:38,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:58:38,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:58:38,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:58:38,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:38,216 INFO L87 Difference]: Start difference. First operand 11618 states and 16783 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:38,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:38,430 INFO L93 Difference]: Finished difference Result 20806 states and 30513 transitions. [2024-12-02 05:58:38,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:58:38,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 05:58:38,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:38,468 INFO L225 Difference]: With dead ends: 20806 [2024-12-02 05:58:38,468 INFO L226 Difference]: Without dead ends: 16020 [2024-12-02 05:58:38,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:38,476 INFO L435 NwaCegarLoop]: 1660 mSDtfsCounter, 1512 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:38,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1787 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:58:38,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16020 states. [2024-12-02 05:58:38,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16020 to 16018. [2024-12-02 05:58:38,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16018 states, 16016 states have (on average 1.449488011988012) internal successors, (23215), 16017 states have internal predecessors, (23215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:38,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16018 states to 16018 states and 23215 transitions. [2024-12-02 05:58:38,904 INFO L78 Accepts]: Start accepts. Automaton has 16018 states and 23215 transitions. Word has length 95 [2024-12-02 05:58:38,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:38,904 INFO L471 AbstractCegarLoop]: Abstraction has 16018 states and 23215 transitions. [2024-12-02 05:58:38,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:38,905 INFO L276 IsEmpty]: Start isEmpty. Operand 16018 states and 23215 transitions. [2024-12-02 05:58:38,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 05:58:38,906 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:38,906 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:38,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 05:58:38,906 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:38,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:38,907 INFO L85 PathProgramCache]: Analyzing trace with hash 2097045551, now seen corresponding path program 1 times [2024-12-02 05:58:38,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:58:38,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831281385] [2024-12-02 05:58:38,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:38,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:58:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:39,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:58:39,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:58:39,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831281385] [2024-12-02 05:58:39,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831281385] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:39,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:39,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:58:39,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404963951] [2024-12-02 05:58:39,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:39,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:58:39,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:58:39,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:58:39,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:39,017 INFO L87 Difference]: Start difference. First operand 16018 states and 23215 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:39,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:39,425 INFO L93 Difference]: Finished difference Result 33622 states and 49137 transitions. [2024-12-02 05:58:39,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:58:39,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 05:58:39,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:39,481 INFO L225 Difference]: With dead ends: 33622 [2024-12-02 05:58:39,481 INFO L226 Difference]: Without dead ends: 24436 [2024-12-02 05:58:39,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:39,494 INFO L435 NwaCegarLoop]: 1672 mSDtfsCounter, 1516 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:39,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:58:39,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24436 states. [2024-12-02 05:58:39,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24436 to 24434. [2024-12-02 05:58:39,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24434 states, 24432 states have (on average 1.4452766863130322) internal successors, (35311), 24433 states have internal predecessors, (35311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:40,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24434 states to 24434 states and 35311 transitions. [2024-12-02 05:58:40,023 INFO L78 Accepts]: Start accepts. Automaton has 24434 states and 35311 transitions. Word has length 95 [2024-12-02 05:58:40,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:40,023 INFO L471 AbstractCegarLoop]: Abstraction has 24434 states and 35311 transitions. [2024-12-02 05:58:40,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:40,023 INFO L276 IsEmpty]: Start isEmpty. Operand 24434 states and 35311 transitions. [2024-12-02 05:58:40,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 05:58:40,024 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:40,024 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:40,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 05:58:40,025 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:40,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:40,025 INFO L85 PathProgramCache]: Analyzing trace with hash 432012591, now seen corresponding path program 1 times [2024-12-02 05:58:40,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:58:40,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835098689] [2024-12-02 05:58:40,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:40,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:58:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:40,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:58:40,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:58:40,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835098689] [2024-12-02 05:58:40,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835098689] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:40,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:40,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:58:40,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155255193] [2024-12-02 05:58:40,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:40,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 05:58:40,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:58:40,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 05:58:40,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:40,099 INFO L87 Difference]: Start difference. First operand 24434 states and 35311 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:40,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:40,604 INFO L93 Difference]: Finished difference Result 58102 states and 84081 transitions. [2024-12-02 05:58:40,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:58:40,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 05:58:40,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:40,649 INFO L225 Difference]: With dead ends: 58102 [2024-12-02 05:58:40,649 INFO L226 Difference]: Without dead ends: 40500 [2024-12-02 05:58:40,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 05:58:40,665 INFO L435 NwaCegarLoop]: 1686 mSDtfsCounter, 1522 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:40,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 1793 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:58:40,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40500 states. [2024-12-02 05:58:41,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40500 to 40498. [2024-12-02 05:58:41,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40498 states, 40496 states have (on average 1.4314253259581193) internal successors, (57967), 40497 states have internal predecessors, (57967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:41,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40498 states to 40498 states and 57967 transitions. [2024-12-02 05:58:41,473 INFO L78 Accepts]: Start accepts. Automaton has 40498 states and 57967 transitions. Word has length 95 [2024-12-02 05:58:41,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:41,473 INFO L471 AbstractCegarLoop]: Abstraction has 40498 states and 57967 transitions. [2024-12-02 05:58:41,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:41,473 INFO L276 IsEmpty]: Start isEmpty. Operand 40498 states and 57967 transitions. [2024-12-02 05:58:41,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 05:58:41,481 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:41,481 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:41,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 05:58:41,481 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:41,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:41,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1265201594, now seen corresponding path program 1 times [2024-12-02 05:58:41,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:58:41,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52156215] [2024-12-02 05:58:41,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:41,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:58:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:41,760 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 05:58:41,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:58:41,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52156215] [2024-12-02 05:58:41,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52156215] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:41,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:41,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 05:58:41,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15635505] [2024-12-02 05:58:41,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:41,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 05:58:41,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:58:41,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 05:58:41,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:58:41,762 INFO L87 Difference]: Start difference. First operand 40498 states and 57967 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:45,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:45,904 INFO L93 Difference]: Finished difference Result 306500 states and 440056 transitions. [2024-12-02 05:58:45,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 05:58:45,905 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 05:58:45,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:46,201 INFO L225 Difference]: With dead ends: 306500 [2024-12-02 05:58:46,201 INFO L226 Difference]: Without dead ends: 282946 [2024-12-02 05:58:46,238 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 05:58:46,238 INFO L435 NwaCegarLoop]: 1701 mSDtfsCounter, 11804 mSDsluCounter, 3433 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11804 SdHoareTripleChecker+Valid, 5134 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:46,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11804 Valid, 5134 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:58:46,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282946 states. [2024-12-02 05:58:49,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282946 to 69170. [2024-12-02 05:58:49,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69170 states, 69168 states have (on average 1.4283917418459404) internal successors, (98799), 69169 states have internal predecessors, (98799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:49,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69170 states to 69170 states and 98799 transitions. [2024-12-02 05:58:49,578 INFO L78 Accepts]: Start accepts. Automaton has 69170 states and 98799 transitions. Word has length 121 [2024-12-02 05:58:49,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:49,579 INFO L471 AbstractCegarLoop]: Abstraction has 69170 states and 98799 transitions. [2024-12-02 05:58:49,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:49,579 INFO L276 IsEmpty]: Start isEmpty. Operand 69170 states and 98799 transitions. [2024-12-02 05:58:49,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 05:58:49,588 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:49,588 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:49,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 05:58:49,589 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:49,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:49,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1047785286, now seen corresponding path program 1 times [2024-12-02 05:58:49,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:58:49,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451252125] [2024-12-02 05:58:49,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:49,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:58:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:49,806 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 05:58:49,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:58:49,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451252125] [2024-12-02 05:58:49,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451252125] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:49,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:49,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 05:58:49,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008263760] [2024-12-02 05:58:49,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:49,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 05:58:49,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:58:49,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 05:58:49,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:58:49,807 INFO L87 Difference]: Start difference. First operand 69170 states and 98799 transitions. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:58:55,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:55,442 INFO L93 Difference]: Finished difference Result 340164 states and 488184 transitions. [2024-12-02 05:58:55,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 05:58:55,442 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 05:58:55,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:55,823 INFO L225 Difference]: With dead ends: 340164 [2024-12-02 05:58:55,823 INFO L226 Difference]: Without dead ends: 306498 [2024-12-02 05:58:55,889 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 05:58:55,890 INFO L435 NwaCegarLoop]: 1700 mSDtfsCounter, 11806 mSDsluCounter, 3375 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11806 SdHoareTripleChecker+Valid, 5075 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:55,890 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11806 Valid, 5075 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:58:56,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306498 states. [2024-12-02 05:59:00,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306498 to 114610. [2024-12-02 05:59:00,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114610 states, 114608 states have (on average 1.4260697333519474) internal successors, (163439), 114609 states have internal predecessors, (163439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:59:00,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114610 states to 114610 states and 163439 transitions. [2024-12-02 05:59:00,755 INFO L78 Accepts]: Start accepts. Automaton has 114610 states and 163439 transitions. Word has length 121 [2024-12-02 05:59:00,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:59:00,755 INFO L471 AbstractCegarLoop]: Abstraction has 114610 states and 163439 transitions. [2024-12-02 05:59:00,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:59:00,755 INFO L276 IsEmpty]: Start isEmpty. Operand 114610 states and 163439 transitions. [2024-12-02 05:59:00,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 05:59:00,761 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:59:00,761 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:59:00,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 05:59:00,762 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:59:00,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:59:00,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1142197946, now seen corresponding path program 1 times [2024-12-02 05:59:00,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:59:00,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604604799] [2024-12-02 05:59:00,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:59:00,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:59:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:59:01,097 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 05:59:01,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:59:01,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604604799] [2024-12-02 05:59:01,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604604799] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:59:01,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:59:01,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 05:59:01,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396035131] [2024-12-02 05:59:01,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:59:01,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 05:59:01,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:59:01,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 05:59:01,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:59:01,099 INFO L87 Difference]: Start difference. First operand 114610 states and 163439 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:59:09,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:59:09,156 INFO L93 Difference]: Finished difference Result 373828 states and 536184 transitions. [2024-12-02 05:59:09,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 05:59:09,156 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 05:59:09,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:59:09,521 INFO L225 Difference]: With dead ends: 373828 [2024-12-02 05:59:09,521 INFO L226 Difference]: Without dead ends: 340162 [2024-12-02 05:59:09,581 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 05:59:09,582 INFO L435 NwaCegarLoop]: 1698 mSDtfsCounter, 11850 mSDsluCounter, 3395 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11850 SdHoareTripleChecker+Valid, 5093 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:59:09,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11850 Valid, 5093 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:59:09,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340162 states. [2024-12-02 05:59:14,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340162 to 148274. [2024-12-02 05:59:14,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148274 states, 148272 states have (on average 1.42602109636344) internal successors, (211439), 148273 states have internal predecessors, (211439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:59:14,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148274 states to 148274 states and 211439 transitions. [2024-12-02 05:59:14,856 INFO L78 Accepts]: Start accepts. Automaton has 148274 states and 211439 transitions. Word has length 121 [2024-12-02 05:59:14,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:59:14,857 INFO L471 AbstractCegarLoop]: Abstraction has 148274 states and 211439 transitions. [2024-12-02 05:59:14,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:59:14,857 INFO L276 IsEmpty]: Start isEmpty. Operand 148274 states and 211439 transitions. [2024-12-02 05:59:14,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 05:59:14,865 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:59:14,865 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:59:14,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 05:59:14,865 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:59:14,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:59:14,866 INFO L85 PathProgramCache]: Analyzing trace with hash -878341562, now seen corresponding path program 1 times [2024-12-02 05:59:14,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:59:14,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740055401] [2024-12-02 05:59:14,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:59:14,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:59:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:59:15,150 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 05:59:15,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:59:15,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740055401] [2024-12-02 05:59:15,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740055401] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:59:15,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:59:15,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 05:59:15,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999952272] [2024-12-02 05:59:15,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:59:15,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 05:59:15,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:59:15,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 05:59:15,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:59:15,151 INFO L87 Difference]: Start difference. First operand 148274 states and 211439 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:59:24,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:59:24,870 INFO L93 Difference]: Finished difference Result 407492 states and 584184 transitions. [2024-12-02 05:59:24,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 05:59:24,871 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 05:59:24,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:59:25,429 INFO L225 Difference]: With dead ends: 407492 [2024-12-02 05:59:25,429 INFO L226 Difference]: Without dead ends: 373826 [2024-12-02 05:59:25,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 05:59:25,470 INFO L435 NwaCegarLoop]: 1696 mSDtfsCounter, 12004 mSDsluCounter, 3270 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12004 SdHoareTripleChecker+Valid, 4966 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:59:25,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12004 Valid, 4966 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:59:25,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373826 states. [2024-12-02 05:59:31,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373826 to 181938. [2024-12-02 05:59:32,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181938 states, 181936 states have (on average 1.4259904581830973) internal successors, (259439), 181937 states have internal predecessors, (259439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:59:32,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181938 states to 181938 states and 259439 transitions. [2024-12-02 05:59:32,305 INFO L78 Accepts]: Start accepts. Automaton has 181938 states and 259439 transitions. Word has length 121 [2024-12-02 05:59:32,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:59:32,316 INFO L471 AbstractCegarLoop]: Abstraction has 181938 states and 259439 transitions. [2024-12-02 05:59:32,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:59:32,317 INFO L276 IsEmpty]: Start isEmpty. Operand 181938 states and 259439 transitions. [2024-12-02 05:59:32,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 05:59:32,329 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:59:32,329 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:59:32,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 05:59:32,343 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:59:32,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:59:32,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1855548346, now seen corresponding path program 1 times [2024-12-02 05:59:32,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:59:32,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668677603] [2024-12-02 05:59:32,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:59:32,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:59:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:59:32,624 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 05:59:32,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:59:32,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668677603] [2024-12-02 05:59:32,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668677603] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:59:32,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:59:32,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 05:59:32,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774546533] [2024-12-02 05:59:32,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:59:32,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 05:59:32,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:59:32,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 05:59:32,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:59:32,626 INFO L87 Difference]: Start difference. First operand 181938 states and 259439 transitions. Second operand has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:59:42,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:59:42,510 INFO L93 Difference]: Finished difference Result 441156 states and 632184 transitions. [2024-12-02 05:59:42,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 05:59:42,510 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 05:59:42,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:59:42,993 INFO L225 Difference]: With dead ends: 441156 [2024-12-02 05:59:42,993 INFO L226 Difference]: Without dead ends: 407490 [2024-12-02 05:59:43,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 05:59:43,066 INFO L435 NwaCegarLoop]: 1694 mSDtfsCounter, 12109 mSDsluCounter, 3314 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12109 SdHoareTripleChecker+Valid, 5008 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:59:43,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12109 Valid, 5008 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:59:43,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407490 states. [2024-12-02 05:59:51,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407490 to 215602. [2024-12-02 05:59:51,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215602 states, 215600 states have (on average 1.425969387755102) internal successors, (307439), 215601 states have internal predecessors, (307439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:59:51,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215602 states to 215602 states and 307439 transitions. [2024-12-02 05:59:51,714 INFO L78 Accepts]: Start accepts. Automaton has 215602 states and 307439 transitions. Word has length 121 [2024-12-02 05:59:51,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:59:51,714 INFO L471 AbstractCegarLoop]: Abstraction has 215602 states and 307439 transitions. [2024-12-02 05:59:51,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 05:59:51,714 INFO L276 IsEmpty]: Start isEmpty. Operand 215602 states and 307439 transitions. [2024-12-02 05:59:51,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 05:59:51,726 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:59:51,726 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:59:51,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 05:59:51,726 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:59:51,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:59:51,727 INFO L85 PathProgramCache]: Analyzing trace with hash -74615482, now seen corresponding path program 1 times [2024-12-02 05:59:51,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:59:51,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324344266] [2024-12-02 05:59:51,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:59:51,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:59:51,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:59:51,991 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 05:59:51,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:59:51,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324344266] [2024-12-02 05:59:51,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324344266] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:59:51,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:59:51,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 05:59:51,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318521190] [2024-12-02 05:59:51,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:59:51,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 05:59:51,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:59:51,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 05:59:51,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:59:51,993 INFO L87 Difference]: Start difference. First operand 215602 states and 307439 transitions. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:00:03,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:00:03,490 INFO L93 Difference]: Finished difference Result 474820 states and 680184 transitions. [2024-12-02 06:00:03,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 06:00:03,491 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 06:00:03,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:00:04,060 INFO L225 Difference]: With dead ends: 474820 [2024-12-02 06:00:04,060 INFO L226 Difference]: Without dead ends: 441154 [2024-12-02 06:00:04,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 06:00:04,147 INFO L435 NwaCegarLoop]: 1694 mSDtfsCounter, 11908 mSDsluCounter, 3379 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11908 SdHoareTripleChecker+Valid, 5073 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:00:04,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11908 Valid, 5073 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:00:04,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441154 states. [2024-12-02 06:00:12,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441154 to 249266. [2024-12-02 06:00:12,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249266 states, 249264 states have (on average 1.4259540086013223) internal successors, (355439), 249265 states have internal predecessors, (355439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:00:13,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249266 states to 249266 states and 355439 transitions. [2024-12-02 06:00:13,336 INFO L78 Accepts]: Start accepts. Automaton has 249266 states and 355439 transitions. Word has length 121 [2024-12-02 06:00:13,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:00:13,336 INFO L471 AbstractCegarLoop]: Abstraction has 249266 states and 355439 transitions. [2024-12-02 06:00:13,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:00:13,337 INFO L276 IsEmpty]: Start isEmpty. Operand 249266 states and 355439 transitions. [2024-12-02 06:00:13,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 06:00:13,344 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:00:13,345 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:00:13,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 06:00:13,345 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:00:13,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:00:13,345 INFO L85 PathProgramCache]: Analyzing trace with hash 359920454, now seen corresponding path program 1 times [2024-12-02 06:00:13,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:00:13,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645618494] [2024-12-02 06:00:13,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:00:13,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:00:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:00:13,739 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 06:00:13,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:00:13,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645618494] [2024-12-02 06:00:13,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645618494] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:00:13,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:00:13,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 06:00:13,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380269933] [2024-12-02 06:00:13,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:00:13,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:00:13,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:00:13,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:00:13,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:00:13,740 INFO L87 Difference]: Start difference. First operand 249266 states and 355439 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:00:26,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:00:26,791 INFO L93 Difference]: Finished difference Result 508484 states and 728184 transitions. [2024-12-02 06:00:26,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 06:00:26,792 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 06:00:26,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:00:27,426 INFO L225 Difference]: With dead ends: 508484 [2024-12-02 06:00:27,426 INFO L226 Difference]: Without dead ends: 474818 [2024-12-02 06:00:27,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 06:00:27,484 INFO L435 NwaCegarLoop]: 1694 mSDtfsCounter, 11733 mSDsluCounter, 3593 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11733 SdHoareTripleChecker+Valid, 5287 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:00:27,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11733 Valid, 5287 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:00:27,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474818 states. [2024-12-02 06:00:36,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474818 to 282930. [2024-12-02 06:00:36,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282930 states, 282928 states have (on average 1.4259422892043205) internal successors, (403439), 282929 states have internal predecessors, (403439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:00:37,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282930 states to 282930 states and 403439 transitions. [2024-12-02 06:00:37,425 INFO L78 Accepts]: Start accepts. Automaton has 282930 states and 403439 transitions. Word has length 121 [2024-12-02 06:00:37,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:00:37,425 INFO L471 AbstractCegarLoop]: Abstraction has 282930 states and 403439 transitions. [2024-12-02 06:00:37,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:00:37,425 INFO L276 IsEmpty]: Start isEmpty. Operand 282930 states and 403439 transitions. [2024-12-02 06:00:37,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 06:00:37,432 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:00:37,433 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:00:37,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 06:00:37,433 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:00:37,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:00:37,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1305112506, now seen corresponding path program 1 times [2024-12-02 06:00:37,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:00:37,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317271837] [2024-12-02 06:00:37,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:00:37,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:00:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:00:37,601 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 06:00:37,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:00:37,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317271837] [2024-12-02 06:00:37,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317271837] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:00:37,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:00:37,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 06:00:37,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885851970] [2024-12-02 06:00:37,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:00:37,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:00:37,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:00:37,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:00:37,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:00:37,603 INFO L87 Difference]: Start difference. First operand 282930 states and 403439 transitions. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:00:52,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:00:52,033 INFO L93 Difference]: Finished difference Result 542148 states and 776184 transitions. [2024-12-02 06:00:52,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 06:00:52,034 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 06:00:52,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:00:52,807 INFO L225 Difference]: With dead ends: 542148 [2024-12-02 06:00:52,807 INFO L226 Difference]: Without dead ends: 508482 [2024-12-02 06:00:52,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 06:00:52,871 INFO L435 NwaCegarLoop]: 1693 mSDtfsCounter, 11731 mSDsluCounter, 3793 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11731 SdHoareTripleChecker+Valid, 5486 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:00:52,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11731 Valid, 5486 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:00:53,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508482 states. [2024-12-02 06:01:04,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508482 to 316594. [2024-12-02 06:01:04,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316594 states, 316592 states have (on average 1.4259330621114874) internal successors, (451439), 316593 states have internal predecessors, (451439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:04,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316594 states to 316594 states and 451439 transitions. [2024-12-02 06:01:05,007 INFO L78 Accepts]: Start accepts. Automaton has 316594 states and 451439 transitions. Word has length 121 [2024-12-02 06:01:05,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:01:05,007 INFO L471 AbstractCegarLoop]: Abstraction has 316594 states and 451439 transitions. [2024-12-02 06:01:05,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:05,007 INFO L276 IsEmpty]: Start isEmpty. Operand 316594 states and 451439 transitions. [2024-12-02 06:01:05,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 06:01:05,017 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:01:05,017 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:01:05,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 06:01:05,017 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:01:05,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:01:05,018 INFO L85 PathProgramCache]: Analyzing trace with hash 152835943, now seen corresponding path program 1 times [2024-12-02 06:01:05,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:01:05,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870282612] [2024-12-02 06:01:05,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:01:05,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:01:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:01:05,106 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:01:05,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:01:05,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870282612] [2024-12-02 06:01:05,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870282612] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:01:05,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:01:05,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:01:05,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338024835] [2024-12-02 06:01:05,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:01:05,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:01:05,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:01:05,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:01:05,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:01:05,108 INFO L87 Difference]: Start difference. First operand 316594 states and 451439 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:14,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:01:14,579 INFO L93 Difference]: Finished difference Result 626358 states and 893297 transitions. [2024-12-02 06:01:14,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:01:14,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-12-02 06:01:14,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:01:14,944 INFO L225 Difference]: With dead ends: 626358 [2024-12-02 06:01:14,944 INFO L226 Difference]: Without dead ends: 316596 [2024-12-02 06:01:15,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:01:15,061 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 69 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 3255 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:01:15,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 3255 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:01:15,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316596 states. [2024-12-02 06:01:25,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316596 to 316594. [2024-12-02 06:01:25,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316594 states, 316592 states have (on average 1.414814651033507) internal successors, (447919), 316593 states have internal predecessors, (447919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:25,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316594 states to 316594 states and 447919 transitions. [2024-12-02 06:01:25,704 INFO L78 Accepts]: Start accepts. Automaton has 316594 states and 447919 transitions. Word has length 122 [2024-12-02 06:01:25,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:01:25,704 INFO L471 AbstractCegarLoop]: Abstraction has 316594 states and 447919 transitions. [2024-12-02 06:01:25,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:25,704 INFO L276 IsEmpty]: Start isEmpty. Operand 316594 states and 447919 transitions. [2024-12-02 06:01:25,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 06:01:25,709 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:01:25,709 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:01:25,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 06:01:25,709 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:01:25,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:01:25,710 INFO L85 PathProgramCache]: Analyzing trace with hash 550117598, now seen corresponding path program 1 times [2024-12-02 06:01:25,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:01:25,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703487933] [2024-12-02 06:01:25,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:01:25,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:01:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:01:25,812 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:01:25,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:01:25,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703487933] [2024-12-02 06:01:25,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703487933] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:01:25,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:01:25,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:01:25,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792343203] [2024-12-02 06:01:25,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:01:25,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:01:25,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:01:25,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:01:25,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:01:25,813 INFO L87 Difference]: Start difference. First operand 316594 states and 447919 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:29,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:01:29,958 INFO L93 Difference]: Finished difference Result 428496 states and 607244 transitions. [2024-12-02 06:01:29,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:01:29,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-12-02 06:01:29,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:01:30,083 INFO L225 Difference]: With dead ends: 428496 [2024-12-02 06:01:30,083 INFO L226 Difference]: Without dead ends: 118734 [2024-12-02 06:01:30,191 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:01:30,191 INFO L435 NwaCegarLoop]: 1661 mSDtfsCounter, 63 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 3252 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:01:30,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 3252 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:01:30,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118734 states. [2024-12-02 06:01:33,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118734 to 118725. [2024-12-02 06:01:33,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118725 states, 118723 states have (on average 1.4123800779966813) internal successors, (167682), 118724 states have internal predecessors, (167682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:34,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118725 states to 118725 states and 167682 transitions. [2024-12-02 06:01:34,090 INFO L78 Accepts]: Start accepts. Automaton has 118725 states and 167682 transitions. Word has length 123 [2024-12-02 06:01:34,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:01:34,091 INFO L471 AbstractCegarLoop]: Abstraction has 118725 states and 167682 transitions. [2024-12-02 06:01:34,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:34,091 INFO L276 IsEmpty]: Start isEmpty. Operand 118725 states and 167682 transitions. [2024-12-02 06:01:34,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 06:01:34,093 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:01:34,093 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:01:34,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 06:01:34,094 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:01:34,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:01:34,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1979176647, now seen corresponding path program 1 times [2024-12-02 06:01:34,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:01:34,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653730615] [2024-12-02 06:01:34,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:01:34,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:01:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:01:34,174 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:01:34,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:01:34,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653730615] [2024-12-02 06:01:34,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653730615] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:01:34,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:01:34,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:01:34,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786784508] [2024-12-02 06:01:34,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:01:34,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:01:34,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:01:34,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:01:34,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:01:34,175 INFO L87 Difference]: Start difference. First operand 118725 states and 167682 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:35,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:01:35,807 INFO L93 Difference]: Finished difference Result 174665 states and 246724 transitions. [2024-12-02 06:01:35,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:01:35,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-12-02 06:01:35,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:01:35,866 INFO L225 Difference]: With dead ends: 174665 [2024-12-02 06:01:35,866 INFO L226 Difference]: Without dead ends: 62791 [2024-12-02 06:01:35,907 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:01:35,907 INFO L435 NwaCegarLoop]: 1655 mSDtfsCounter, 65 mSDsluCounter, 1576 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 3231 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:01:35,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 3231 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:01:35,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62791 states. [2024-12-02 06:01:37,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62791 to 62789. [2024-12-02 06:01:37,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62789 states, 62787 states have (on average 1.402105531399812) internal successors, (88034), 62788 states have internal predecessors, (88034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:37,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62789 states to 62789 states and 88034 transitions. [2024-12-02 06:01:37,785 INFO L78 Accepts]: Start accepts. Automaton has 62789 states and 88034 transitions. Word has length 124 [2024-12-02 06:01:37,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:01:37,786 INFO L471 AbstractCegarLoop]: Abstraction has 62789 states and 88034 transitions. [2024-12-02 06:01:37,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:37,786 INFO L276 IsEmpty]: Start isEmpty. Operand 62789 states and 88034 transitions. [2024-12-02 06:01:37,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 06:01:37,788 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:01:37,788 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:01:37,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 06:01:37,788 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:01:37,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:01:37,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1946826357, now seen corresponding path program 1 times [2024-12-02 06:01:37,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:01:37,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260464353] [2024-12-02 06:01:37,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:01:37,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:01:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:01:37,887 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:01:37,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:01:37,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260464353] [2024-12-02 06:01:37,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260464353] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:01:37,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:01:37,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:01:37,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660947243] [2024-12-02 06:01:37,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:01:37,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:01:37,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:01:37,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:01:37,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:01:37,889 INFO L87 Difference]: Start difference. First operand 62789 states and 88034 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:38,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:01:38,812 INFO L93 Difference]: Finished difference Result 90761 states and 127252 transitions. [2024-12-02 06:01:38,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:01:38,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-12-02 06:01:38,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:01:38,849 INFO L225 Difference]: With dead ends: 90761 [2024-12-02 06:01:38,849 INFO L226 Difference]: Without dead ends: 34823 [2024-12-02 06:01:38,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:01:38,870 INFO L435 NwaCegarLoop]: 1648 mSDtfsCounter, 62 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 3216 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:01:38,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 3216 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:01:38,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34823 states. [2024-12-02 06:01:39,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34823 to 34821. [2024-12-02 06:01:39,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34821 states, 34819 states have (on average 1.393319739222838) internal successors, (48514), 34820 states have internal predecessors, (48514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:39,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34821 states to 34821 states and 48514 transitions. [2024-12-02 06:01:39,937 INFO L78 Accepts]: Start accepts. Automaton has 34821 states and 48514 transitions. Word has length 126 [2024-12-02 06:01:39,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:01:39,937 INFO L471 AbstractCegarLoop]: Abstraction has 34821 states and 48514 transitions. [2024-12-02 06:01:39,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:39,938 INFO L276 IsEmpty]: Start isEmpty. Operand 34821 states and 48514 transitions. [2024-12-02 06:01:39,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 06:01:39,939 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:01:39,939 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:01:39,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 06:01:39,939 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:01:39,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:01:39,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1691477923, now seen corresponding path program 1 times [2024-12-02 06:01:39,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:01:39,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430898014] [2024-12-02 06:01:39,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:01:39,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:01:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:01:40,089 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:01:40,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:01:40,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430898014] [2024-12-02 06:01:40,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430898014] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:01:40,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:01:40,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:01:40,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270981952] [2024-12-02 06:01:40,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:01:40,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:01:40,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:01:40,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:01:40,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:01:40,091 INFO L87 Difference]: Start difference. First operand 34821 states and 48514 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:40,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:01:40,510 INFO L93 Difference]: Finished difference Result 48809 states and 67972 transitions. [2024-12-02 06:01:40,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:01:40,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2024-12-02 06:01:40,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:01:40,533 INFO L225 Difference]: With dead ends: 48809 [2024-12-02 06:01:40,533 INFO L226 Difference]: Without dead ends: 20839 [2024-12-02 06:01:40,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:01:40,546 INFO L435 NwaCegarLoop]: 1641 mSDtfsCounter, 59 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 3201 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:01:40,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 3201 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:01:40,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20839 states. [2024-12-02 06:01:40,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20839 to 20837. [2024-12-02 06:01:41,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20837 states, 20835 states have (on average 1.3873770098392129) internal successors, (28906), 20836 states have internal predecessors, (28906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:41,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20837 states to 20837 states and 28906 transitions. [2024-12-02 06:01:41,028 INFO L78 Accepts]: Start accepts. Automaton has 20837 states and 28906 transitions. Word has length 128 [2024-12-02 06:01:41,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:01:41,029 INFO L471 AbstractCegarLoop]: Abstraction has 20837 states and 28906 transitions. [2024-12-02 06:01:41,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:41,029 INFO L276 IsEmpty]: Start isEmpty. Operand 20837 states and 28906 transitions. [2024-12-02 06:01:41,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 06:01:41,030 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:01:41,030 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:01:41,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 06:01:41,030 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:01:41,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:01:41,031 INFO L85 PathProgramCache]: Analyzing trace with hash -740149841, now seen corresponding path program 1 times [2024-12-02 06:01:41,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:01:41,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214598111] [2024-12-02 06:01:41,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:01:41,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:01:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:01:41,150 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:01:41,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:01:41,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214598111] [2024-12-02 06:01:41,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214598111] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:01:41,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:01:41,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:01:41,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225741817] [2024-12-02 06:01:41,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:01:41,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:01:41,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:01:41,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:01:41,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:01:41,151 INFO L87 Difference]: Start difference. First operand 20837 states and 28906 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:41,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:01:41,367 INFO L93 Difference]: Finished difference Result 27833 states and 38560 transitions. [2024-12-02 06:01:41,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:01:41,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2024-12-02 06:01:41,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:01:41,385 INFO L225 Difference]: With dead ends: 27833 [2024-12-02 06:01:41,386 INFO L226 Difference]: Without dead ends: 13847 [2024-12-02 06:01:41,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:01:41,393 INFO L435 NwaCegarLoop]: 1634 mSDtfsCounter, 56 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3186 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:01:41,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3186 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:01:41,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13847 states. [2024-12-02 06:01:41,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13847 to 13845. [2024-12-02 06:01:41,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13845 states, 13843 states have (on average 1.3853933395940186) internal successors, (19178), 13844 states have internal predecessors, (19178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:41,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13845 states to 13845 states and 19178 transitions. [2024-12-02 06:01:41,681 INFO L78 Accepts]: Start accepts. Automaton has 13845 states and 19178 transitions. Word has length 130 [2024-12-02 06:01:41,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:01:41,681 INFO L471 AbstractCegarLoop]: Abstraction has 13845 states and 19178 transitions. [2024-12-02 06:01:41,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:41,682 INFO L276 IsEmpty]: Start isEmpty. Operand 13845 states and 19178 transitions. [2024-12-02 06:01:41,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 06:01:41,682 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:01:41,683 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:01:41,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 06:01:41,683 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:01:41,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:01:41,683 INFO L85 PathProgramCache]: Analyzing trace with hash 875250049, now seen corresponding path program 1 times [2024-12-02 06:01:41,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:01:41,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640254314] [2024-12-02 06:01:41,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:01:41,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:01:41,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:01:41,782 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:01:41,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:01:41,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640254314] [2024-12-02 06:01:41,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640254314] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:01:41,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:01:41,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:01:41,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835755541] [2024-12-02 06:01:41,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:01:41,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:01:41,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:01:41,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:01:41,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:01:41,784 INFO L87 Difference]: Start difference. First operand 13845 states and 19178 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:41,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:01:41,905 INFO L93 Difference]: Finished difference Result 17345 states and 23968 transitions. [2024-12-02 06:01:41,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:01:41,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2024-12-02 06:01:41,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:01:41,921 INFO L225 Difference]: With dead ends: 17345 [2024-12-02 06:01:41,921 INFO L226 Difference]: Without dead ends: 10351 [2024-12-02 06:01:41,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:01:41,926 INFO L435 NwaCegarLoop]: 1627 mSDtfsCounter, 53 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3171 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:01:41,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3171 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:01:41,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10351 states. [2024-12-02 06:01:42,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10351 to 10349. [2024-12-02 06:01:42,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10349 states, 10347 states have (on average 1.3870687155697303) internal successors, (14352), 10348 states have internal predecessors, (14352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:42,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10349 states to 10349 states and 14352 transitions. [2024-12-02 06:01:42,118 INFO L78 Accepts]: Start accepts. Automaton has 10349 states and 14352 transitions. Word has length 132 [2024-12-02 06:01:42,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:01:42,118 INFO L471 AbstractCegarLoop]: Abstraction has 10349 states and 14352 transitions. [2024-12-02 06:01:42,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:42,118 INFO L276 IsEmpty]: Start isEmpty. Operand 10349 states and 14352 transitions. [2024-12-02 06:01:42,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 06:01:42,119 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:01:42,119 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:01:42,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 06:01:42,119 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:01:42,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:01:42,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1846172627, now seen corresponding path program 1 times [2024-12-02 06:01:42,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:01:42,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42927279] [2024-12-02 06:01:42,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:01:42,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:01:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:01:42,201 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:01:42,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:01:42,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42927279] [2024-12-02 06:01:42,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42927279] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:01:42,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:01:42,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:01:42,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801811993] [2024-12-02 06:01:42,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:01:42,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:01:42,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:01:42,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:01:42,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:01:42,202 INFO L87 Difference]: Start difference. First operand 10349 states and 14352 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:42,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:01:42,280 INFO L93 Difference]: Finished difference Result 12101 states and 16729 transitions. [2024-12-02 06:01:42,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:01:42,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2024-12-02 06:01:42,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:01:42,295 INFO L225 Difference]: With dead ends: 12101 [2024-12-02 06:01:42,295 INFO L226 Difference]: Without dead ends: 8603 [2024-12-02 06:01:42,298 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:01:42,299 INFO L435 NwaCegarLoop]: 1620 mSDtfsCounter, 50 mSDsluCounter, 1536 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3156 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:01:42,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3156 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:01:42,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8603 states. [2024-12-02 06:01:42,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8603 to 8601. [2024-12-02 06:01:42,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8601 states, 8599 states have (on average 1.3906268170717526) internal successors, (11958), 8600 states have internal predecessors, (11958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:42,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8601 states to 8601 states and 11958 transitions. [2024-12-02 06:01:42,426 INFO L78 Accepts]: Start accepts. Automaton has 8601 states and 11958 transitions. Word has length 134 [2024-12-02 06:01:42,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:01:42,426 INFO L471 AbstractCegarLoop]: Abstraction has 8601 states and 11958 transitions. [2024-12-02 06:01:42,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:42,426 INFO L276 IsEmpty]: Start isEmpty. Operand 8601 states and 11958 transitions. [2024-12-02 06:01:42,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 06:01:42,427 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:01:42,427 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:01:42,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 06:01:42,427 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:01:42,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:01:42,427 INFO L85 PathProgramCache]: Analyzing trace with hash 963159205, now seen corresponding path program 1 times [2024-12-02 06:01:42,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:01:42,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012164930] [2024-12-02 06:01:42,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:01:42,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:01:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:01:42,954 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:01:42,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:01:42,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012164930] [2024-12-02 06:01:42,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012164930] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:01:42,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195282150] [2024-12-02 06:01:42,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:01:42,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:01:42,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:01:42,956 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:01:42,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:01:43,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:01:43,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 06:01:43,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:01:43,629 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:01:43,629 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:01:44,416 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:01:44,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195282150] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:01:44,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:01:44,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 6] total 19 [2024-12-02 06:01:44,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474193867] [2024-12-02 06:01:44,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:01:44,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 06:01:44,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:01:44,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 06:01:44,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:01:44,418 INFO L87 Difference]: Start difference. First operand 8601 states and 11958 transitions. Second operand has 19 states, 19 states have (on average 20.789473684210527) internal successors, (395), 19 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:48,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:01:48,296 INFO L93 Difference]: Finished difference Result 20829 states and 28022 transitions. [2024-12-02 06:01:48,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-12-02 06:01:48,296 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 20.789473684210527) internal successors, (395), 19 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2024-12-02 06:01:48,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:01:48,315 INFO L225 Difference]: With dead ends: 20829 [2024-12-02 06:01:48,315 INFO L226 Difference]: Without dead ends: 18965 [2024-12-02 06:01:48,320 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1264 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=890, Invalid=3270, Unknown=0, NotChecked=0, Total=4160 [2024-12-02 06:01:48,320 INFO L435 NwaCegarLoop]: 1591 mSDtfsCounter, 14925 mSDsluCounter, 6887 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14925 SdHoareTripleChecker+Valid, 8478 SdHoareTripleChecker+Invalid, 1687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:01:48,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14925 Valid, 8478 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1627 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 06:01:48,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18965 states. [2024-12-02 06:01:48,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18965 to 17918. [2024-12-02 06:01:48,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17918 states, 17916 states have (on average 1.3434918508595668) internal successors, (24070), 17917 states have internal predecessors, (24070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:48,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17918 states to 17918 states and 24070 transitions. [2024-12-02 06:01:48,796 INFO L78 Accepts]: Start accepts. Automaton has 17918 states and 24070 transitions. Word has length 136 [2024-12-02 06:01:48,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:01:48,796 INFO L471 AbstractCegarLoop]: Abstraction has 17918 states and 24070 transitions. [2024-12-02 06:01:48,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 20.789473684210527) internal successors, (395), 19 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:48,796 INFO L276 IsEmpty]: Start isEmpty. Operand 17918 states and 24070 transitions. [2024-12-02 06:01:48,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 06:01:48,797 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:01:48,797 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:01:48,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:01:48,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-12-02 06:01:48,998 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:01:48,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:01:48,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1397002962, now seen corresponding path program 1 times [2024-12-02 06:01:48,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:01:48,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490352722] [2024-12-02 06:01:48,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:01:48,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:01:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:01:49,512 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:01:49,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:01:49,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490352722] [2024-12-02 06:01:49,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490352722] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:01:49,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053671522] [2024-12-02 06:01:49,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:01:49,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:01:49,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:01:49,514 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:01:49,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 06:01:49,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:01:49,702 INFO L256 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 06:01:49,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:01:50,394 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:01:50,394 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:01:51,794 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:01:51,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053671522] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:01:51,794 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:01:51,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 29 [2024-12-02 06:01:51,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650048983] [2024-12-02 06:01:51,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:01:51,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 06:01:51,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:01:51,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 06:01:51,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2024-12-02 06:01:51,796 INFO L87 Difference]: Start difference. First operand 17918 states and 24070 transitions. Second operand has 29 states, 29 states have (on average 11.689655172413794) internal successors, (339), 29 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:53,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:01:53,273 INFO L93 Difference]: Finished difference Result 40248 states and 53412 transitions. [2024-12-02 06:01:53,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 06:01:53,274 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 11.689655172413794) internal successors, (339), 29 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2024-12-02 06:01:53,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:01:53,301 INFO L225 Difference]: With dead ends: 40248 [2024-12-02 06:01:53,301 INFO L226 Difference]: Without dead ends: 29423 [2024-12-02 06:01:53,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=440, Invalid=1366, Unknown=0, NotChecked=0, Total=1806 [2024-12-02 06:01:53,311 INFO L435 NwaCegarLoop]: 1590 mSDtfsCounter, 15495 mSDsluCounter, 5442 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15495 SdHoareTripleChecker+Valid, 7032 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:01:53,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15495 Valid, 7032 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:01:53,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29423 states. [2024-12-02 06:01:54,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29423 to 29203. [2024-12-02 06:01:54,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29203 states, 29201 states have (on average 1.3214958391835896) internal successors, (38589), 29202 states have internal predecessors, (38589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:54,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29203 states to 29203 states and 38589 transitions. [2024-12-02 06:01:54,243 INFO L78 Accepts]: Start accepts. Automaton has 29203 states and 38589 transitions. Word has length 137 [2024-12-02 06:01:54,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:01:54,244 INFO L471 AbstractCegarLoop]: Abstraction has 29203 states and 38589 transitions. [2024-12-02 06:01:54,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 11.689655172413794) internal successors, (339), 29 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:01:54,244 INFO L276 IsEmpty]: Start isEmpty. Operand 29203 states and 38589 transitions. [2024-12-02 06:01:54,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 06:01:54,245 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:01:54,245 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:01:54,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 06:01:54,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:01:54,445 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:01:54,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:01:54,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1438973998, now seen corresponding path program 1 times [2024-12-02 06:01:54,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:01:54,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203780332] [2024-12-02 06:01:54,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:01:54,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:01:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:01:54,768 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:01:54,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:01:54,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203780332] [2024-12-02 06:01:54,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203780332] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:01:54,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952750097] [2024-12-02 06:01:54,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:01:54,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:01:54,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:01:54,770 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:01:54,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 06:01:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:01:55,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 06:01:55,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:01:55,701 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:01:55,702 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:01:56,924 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:01:56,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952750097] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:01:56,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:01:56,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-12-02 06:01:56,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324058790] [2024-12-02 06:01:56,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:01:56,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 06:01:56,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:01:56,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 06:01:56,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2024-12-02 06:01:56,926 INFO L87 Difference]: Start difference. First operand 29203 states and 38589 transitions. Second operand has 26 states, 26 states have (on average 14.653846153846153) internal successors, (381), 25 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:02:01,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:02:01,106 INFO L93 Difference]: Finished difference Result 120099 states and 156839 transitions. [2024-12-02 06:02:01,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-12-02 06:02:01,107 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 14.653846153846153) internal successors, (381), 25 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2024-12-02 06:02:01,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:02:01,183 INFO L225 Difference]: With dead ends: 120099 [2024-12-02 06:02:01,183 INFO L226 Difference]: Without dead ends: 97943 [2024-12-02 06:02:01,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=694, Invalid=2498, Unknown=0, NotChecked=0, Total=3192 [2024-12-02 06:02:01,208 INFO L435 NwaCegarLoop]: 1558 mSDtfsCounter, 23209 mSDsluCounter, 6812 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23209 SdHoareTripleChecker+Valid, 8370 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:02:01,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23209 Valid, 8370 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:02:01,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97943 states. [2024-12-02 06:02:04,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97943 to 97067. [2024-12-02 06:02:04,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97067 states, 97065 states have (on average 1.2833153041776129) internal successors, (124565), 97066 states have internal predecessors, (124565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:02:04,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97067 states to 97067 states and 124565 transitions. [2024-12-02 06:02:04,860 INFO L78 Accepts]: Start accepts. Automaton has 97067 states and 124565 transitions. Word has length 137 [2024-12-02 06:02:04,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:02:04,861 INFO L471 AbstractCegarLoop]: Abstraction has 97067 states and 124565 transitions. [2024-12-02 06:02:04,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 14.653846153846153) internal successors, (381), 25 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:02:04,861 INFO L276 IsEmpty]: Start isEmpty. Operand 97067 states and 124565 transitions. [2024-12-02 06:02:04,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 06:02:04,863 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:02:04,863 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:02:04,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 06:02:05,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:02:05,064 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:02:05,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:02:05,064 INFO L85 PathProgramCache]: Analyzing trace with hash 122632930, now seen corresponding path program 1 times [2024-12-02 06:02:05,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:02:05,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487491497] [2024-12-02 06:02:05,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:02:05,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:02:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:02:05,429 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:02:05,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:02:05,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487491497] [2024-12-02 06:02:05,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487491497] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:02:05,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331551266] [2024-12-02 06:02:05,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:02:05,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:02:05,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:02:05,431 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:02:05,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 06:02:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:02:05,625 INFO L256 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 06:02:05,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:02:06,132 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:02:06,132 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:02:07,157 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:02:07,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331551266] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:02:07,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:02:07,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-12-02 06:02:07,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351025576] [2024-12-02 06:02:07,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:02:07,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 06:02:07,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:02:07,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 06:02:07,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2024-12-02 06:02:07,159 INFO L87 Difference]: Start difference. First operand 97067 states and 124565 transitions. Second operand has 25 states, 25 states have (on average 15.24) internal successors, (381), 24 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:02:21,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:02:21,289 INFO L93 Difference]: Finished difference Result 459007 states and 587634 transitions. [2024-12-02 06:02:21,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-12-02 06:02:21,290 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 15.24) internal successors, (381), 24 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2024-12-02 06:02:21,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:02:21,642 INFO L225 Difference]: With dead ends: 459007 [2024-12-02 06:02:21,642 INFO L226 Difference]: Without dead ends: 373879 [2024-12-02 06:02:21,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=667, Invalid=2413, Unknown=0, NotChecked=0, Total=3080 [2024-12-02 06:02:21,695 INFO L435 NwaCegarLoop]: 1538 mSDtfsCounter, 26888 mSDsluCounter, 6635 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26888 SdHoareTripleChecker+Valid, 8173 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:02:21,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26888 Valid, 8173 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 06:02:21,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373879 states. [2024-12-02 06:02:35,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373879 to 370603. [2024-12-02 06:02:35,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370603 states, 370601 states have (on average 1.2560030868778012) internal successors, (465476), 370602 states have internal predecessors, (465476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:02:36,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370603 states to 370603 states and 465476 transitions. [2024-12-02 06:02:36,185 INFO L78 Accepts]: Start accepts. Automaton has 370603 states and 465476 transitions. Word has length 139 [2024-12-02 06:02:36,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:02:36,186 INFO L471 AbstractCegarLoop]: Abstraction has 370603 states and 465476 transitions. [2024-12-02 06:02:36,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 15.24) internal successors, (381), 24 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:02:36,186 INFO L276 IsEmpty]: Start isEmpty. Operand 370603 states and 465476 transitions. [2024-12-02 06:02:36,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 06:02:36,191 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:02:36,191 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:02:36,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 06:02:36,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:02:36,392 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:02:36,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:02:36,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1062171022, now seen corresponding path program 1 times [2024-12-02 06:02:36,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:02:36,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641890420] [2024-12-02 06:02:36,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:02:36,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:02:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:02:36,720 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:02:36,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:02:36,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641890420] [2024-12-02 06:02:36,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641890420] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:02:36,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837576009] [2024-12-02 06:02:36,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:02:36,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:02:36,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:02:36,722 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:02:36,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 06:02:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:02:36,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 06:02:36,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:02:37,458 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:02:37,458 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:02:38,847 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:02:38,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837576009] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:02:38,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:02:38,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-12-02 06:02:38,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949137510] [2024-12-02 06:02:38,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:02:38,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 06:02:38,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:02:38,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 06:02:38,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-12-02 06:02:38,849 INFO L87 Difference]: Start difference. First operand 370603 states and 465476 transitions. Second operand has 22 states, 22 states have (on average 15.818181818181818) internal successors, (348), 21 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:03:05,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:03:05,718 INFO L93 Difference]: Finished difference Result 1063518 states and 1337799 transitions. [2024-12-02 06:03:05,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 06:03:05,719 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 15.818181818181818) internal successors, (348), 21 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-12-02 06:03:05,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:03:06,609 INFO L225 Difference]: With dead ends: 1063518 [2024-12-02 06:03:06,609 INFO L226 Difference]: Without dead ends: 743660 [2024-12-02 06:03:06,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2024-12-02 06:03:06,804 INFO L435 NwaCegarLoop]: 1569 mSDtfsCounter, 17801 mSDsluCounter, 4986 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17801 SdHoareTripleChecker+Valid, 6555 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:03:06,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17801 Valid, 6555 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:03:07,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743660 states. [2024-12-02 06:03:35,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743660 to 736872. [2024-12-02 06:03:35,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736872 states, 736870 states have (on average 1.244709378859229) internal successors, (917189), 736871 states have internal predecessors, (917189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:03:37,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736872 states to 736872 states and 917189 transitions. [2024-12-02 06:03:37,882 INFO L78 Accepts]: Start accepts. Automaton has 736872 states and 917189 transitions. Word has length 141 [2024-12-02 06:03:37,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:03:37,882 INFO L471 AbstractCegarLoop]: Abstraction has 736872 states and 917189 transitions. [2024-12-02 06:03:37,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 15.818181818181818) internal successors, (348), 21 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:03:37,883 INFO L276 IsEmpty]: Start isEmpty. Operand 736872 states and 917189 transitions. [2024-12-02 06:03:37,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 06:03:37,893 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:03:37,894 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:03:37,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 06:03:38,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:03:38,095 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:03:38,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:03:38,095 INFO L85 PathProgramCache]: Analyzing trace with hash 515671811, now seen corresponding path program 1 times [2024-12-02 06:03:38,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:03:38,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078579649] [2024-12-02 06:03:38,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:03:38,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:03:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:03:38,683 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:03:38,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:03:38,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078579649] [2024-12-02 06:03:38,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078579649] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:03:38,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452631099] [2024-12-02 06:03:38,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:03:38,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:03:38,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:03:38,686 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:03:38,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 06:03:38,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:03:38,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 06:03:38,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:03:40,370 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:03:40,370 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:03:42,899 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:03:42,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452631099] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:03:42,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:03:42,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 16, 16] total 38 [2024-12-02 06:03:42,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984061493] [2024-12-02 06:03:42,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:03:42,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-12-02 06:03:42,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:03:42,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-12-02 06:03:42,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=1249, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 06:03:42,901 INFO L87 Difference]: Start difference. First operand 736872 states and 917189 transitions. Second operand has 38 states, 38 states have (on average 9.68421052631579) internal successors, (368), 38 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:05:19,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:19,836 INFO L93 Difference]: Finished difference Result 3162210 states and 3921551 transitions. [2024-12-02 06:05:19,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2024-12-02 06:05:19,837 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 9.68421052631579) internal successors, (368), 38 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2024-12-02 06:05:19,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:23,244 INFO L225 Difference]: With dead ends: 3162210 [2024-12-02 06:05:23,244 INFO L226 Difference]: Without dead ends: 2478443 [2024-12-02 06:05:24,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4859 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=2761, Invalid=13241, Unknown=0, NotChecked=0, Total=16002 [2024-12-02 06:05:24,312 INFO L435 NwaCegarLoop]: 1662 mSDtfsCounter, 25111 mSDsluCounter, 15307 mSDsCounter, 0 mSdLazyCounter, 4433 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25111 SdHoareTripleChecker+Valid, 16969 SdHoareTripleChecker+Invalid, 4498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:24,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25111 Valid, 16969 Invalid, 4498 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 4433 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 06:05:26,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478443 states. [2024-12-02 06:06:30,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478443 to 1394687. [2024-12-02 06:06:31,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394687 states, 1394685 states have (on average 1.2333379938839235) internal successors, (1720118), 1394686 states have internal predecessors, (1720118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:35,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394687 states to 1394687 states and 1720118 transitions. [2024-12-02 06:06:35,237 INFO L78 Accepts]: Start accepts. Automaton has 1394687 states and 1720118 transitions. Word has length 142 [2024-12-02 06:06:35,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:35,237 INFO L471 AbstractCegarLoop]: Abstraction has 1394687 states and 1720118 transitions. [2024-12-02 06:06:35,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 9.68421052631579) internal successors, (368), 38 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:06:35,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1394687 states and 1720118 transitions. [2024-12-02 06:06:35,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 06:06:35,296 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:06:35,297 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:06:35,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 06:06:35,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:06:35,498 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:06:35,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:35,499 INFO L85 PathProgramCache]: Analyzing trace with hash -966859518, now seen corresponding path program 1 times [2024-12-02 06:06:35,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:06:35,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851720856] [2024-12-02 06:06:35,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:35,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:38,492 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:06:38,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:06:38,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851720856] [2024-12-02 06:06:38,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851720856] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:06:38,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026272690] [2024-12-02 06:06:38,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:38,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:06:38,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:06:38,498 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:06:38,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3bcb315-8b22-46fa-8fec-ebe46581df39/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 06:06:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:06:38,879 INFO L256 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 06:06:38,892 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:06:42,278 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:06:42,278 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:06:46,023 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:06:46,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026272690] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:06:46,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:06:46,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16, 16] total 37 [2024-12-02 06:06:46,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647989760] [2024-12-02 06:06:46,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:06:46,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-12-02 06:06:46,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:46,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-12-02 06:06:46,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1169, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 06:06:46,026 INFO L87 Difference]: Start difference. First operand 1394687 states and 1720118 transitions. Second operand has 37 states, 37 states have (on average 11.0) internal successors, (407), 37 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)