./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label03.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_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/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_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/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_047694d8-9aeb-467f-b7e6-1544c8ed0b79/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 ecdc1df8791622fbe3f4dcfbea3b27b9095dd3e12c90083fff586730bc575daa --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:55:03,114 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:55:03,177 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 06:55:03,182 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:55:03,183 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:55:03,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:55:03,206 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:55:03,206 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:55:03,207 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:55:03,207 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:55:03,207 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:55:03,207 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:55:03,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:55:03,208 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:55:03,208 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:55:03,208 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:55:03,208 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:55:03,208 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:55:03,208 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:55:03,208 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:55:03,209 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:55:03,209 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:55:03,209 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:55:03,209 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:55:03,209 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:55:03,209 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:55:03,209 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:55:03,209 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:55:03,209 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:55:03,209 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:55:03,210 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:55:03,210 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:55:03,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:55:03,210 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:55:03,210 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:55:03,210 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:55:03,210 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:55:03,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:55:03,211 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:55:03,211 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:55:03,211 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:55:03,211 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:55:03,211 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:55:03,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:55:03,211 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:55:03,211 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:55:03,211 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:55:03,212 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:55:03,212 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_047694d8-9aeb-467f-b7e6-1544c8ed0b79/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 -> ecdc1df8791622fbe3f4dcfbea3b27b9095dd3e12c90083fff586730bc575daa [2024-12-02 06:55:03,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:55:03,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:55:03,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:55:03,456 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:55:03,456 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:55:03,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label03.c [2024-12-02 06:55:06,089 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/data/62514d77e/badbfc703b1e4b85a5fbb1d8c74b5e14/FLAGb273e4a3a [2024-12-02 06:55:06,503 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:55:06,504 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label03.c [2024-12-02 06:55:06,531 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/data/62514d77e/badbfc703b1e4b85a5fbb1d8c74b5e14/FLAGb273e4a3a [2024-12-02 06:55:06,652 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/data/62514d77e/badbfc703b1e4b85a5fbb1d8c74b5e14 [2024-12-02 06:55:06,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:55:06,655 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:55:06,656 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:55:06,656 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:55:06,661 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:55:06,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:55:06" (1/1) ... [2024-12-02 06:55:06,663 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7757d00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:06, skipping insertion in model container [2024-12-02 06:55:06,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:55:06" (1/1) ... [2024-12-02 06:55:06,758 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:55:07,062 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_047694d8-9aeb-467f-b7e6-1544c8ed0b79/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label03.c[15482,15495] [2024-12-02 06:55:07,095 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_047694d8-9aeb-467f-b7e6-1544c8ed0b79/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label03.c[17819,17832] [2024-12-02 06:55:07,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:55:07,722 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:55:07,753 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_047694d8-9aeb-467f-b7e6-1544c8ed0b79/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label03.c[15482,15495] [2024-12-02 06:55:07,757 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_047694d8-9aeb-467f-b7e6-1544c8ed0b79/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label03.c[17819,17832] [2024-12-02 06:55:08,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:55:08,122 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:55:08,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:08 WrapperNode [2024-12-02 06:55:08,123 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:55:08,123 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:55:08,123 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:55:08,123 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:55:08,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:08" (1/1) ... [2024-12-02 06:55:08,168 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:08" (1/1) ... [2024-12-02 06:55:08,425 INFO L138 Inliner]: procedures = 37, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5157 [2024-12-02 06:55:08,426 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:55:08,426 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:55:08,426 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:55:08,426 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:55:08,435 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:08" (1/1) ... [2024-12-02 06:55:08,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:08" (1/1) ... [2024-12-02 06:55:08,505 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:08" (1/1) ... [2024-12-02 06:55:08,628 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 06:55:08,628 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:08" (1/1) ... [2024-12-02 06:55:08,628 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:08" (1/1) ... [2024-12-02 06:55:08,758 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:08" (1/1) ... [2024-12-02 06:55:08,770 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:08" (1/1) ... [2024-12-02 06:55:08,816 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:08" (1/1) ... [2024-12-02 06:55:08,854 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:08" (1/1) ... [2024-12-02 06:55:08,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:08" (1/1) ... [2024-12-02 06:55:08,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:55:08,929 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:55:08,929 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:55:08,929 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:55:08,930 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:08" (1/1) ... [2024-12-02 06:55:08,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:55:08,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:55:08,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:55:08,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:55:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:55:08,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:55:08,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:55:08,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:55:09,061 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:55:09,062 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:55:13,405 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-12-02 06:55:13,405 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:55:13,433 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:55:13,433 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 06:55:13,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:55:13 BoogieIcfgContainer [2024-12-02 06:55:13,434 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:55:13,436 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:55:13,437 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:55:13,441 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:55:13,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:55:06" (1/3) ... [2024-12-02 06:55:13,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54285149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:55:13, skipping insertion in model container [2024-12-02 06:55:13,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:55:08" (2/3) ... [2024-12-02 06:55:13,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54285149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:55:13, skipping insertion in model container [2024-12-02 06:55:13,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:55:13" (3/3) ... [2024-12-02 06:55:13,443 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label03.c [2024-12-02 06:55:13,457 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:55:13,460 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label03.c that has 1 procedures, 915 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 06:55:13,529 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:55:13,540 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;@625fca46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:55:13,540 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 06:55:13,547 INFO L276 IsEmpty]: Start isEmpty. Operand has 915 states, 912 states have (on average 1.9035087719298245) internal successors, (1736), 914 states have internal predecessors, (1736), 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 06:55:13,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-02 06:55:13,553 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:13,553 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] [2024-12-02 06:55:13,554 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:13,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:13,558 INFO L85 PathProgramCache]: Analyzing trace with hash -549665915, now seen corresponding path program 1 times [2024-12-02 06:55:13,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:13,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68177801] [2024-12-02 06:55:13,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:13,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:13,817 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 06:55:13,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:13,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68177801] [2024-12-02 06:55:13,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68177801] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:13,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:13,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:55:13,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986998859] [2024-12-02 06:55:13,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:13,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:55:13,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:13,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:55:13,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:55:13,843 INFO L87 Difference]: Start difference. First operand has 915 states, 912 states have (on average 1.9035087719298245) internal successors, (1736), 914 states have internal predecessors, (1736), 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 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 06:55:17,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:17,607 INFO L93 Difference]: Finished difference Result 2555 states and 4902 transitions. [2024-12-02 06:55:17,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:55:17,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 20 [2024-12-02 06:55:17,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:17,623 INFO L225 Difference]: With dead ends: 2555 [2024-12-02 06:55:17,623 INFO L226 Difference]: Without dead ends: 1600 [2024-12-02 06:55:17,628 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 06:55:17,630 INFO L435 NwaCegarLoop]: 683 mSDtfsCounter, 968 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 3033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:55:17,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 694 Invalid, 3033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-02 06:55:17,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2024-12-02 06:55:17,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1600. [2024-12-02 06:55:17,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1598 states have (on average 1.6157697121401753) internal successors, (2582), 1599 states have internal predecessors, (2582), 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 06:55:17,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 2582 transitions. [2024-12-02 06:55:17,735 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 2582 transitions. Word has length 20 [2024-12-02 06:55:17,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:17,736 INFO L471 AbstractCegarLoop]: Abstraction has 1600 states and 2582 transitions. [2024-12-02 06:55:17,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 06:55:17,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 2582 transitions. [2024-12-02 06:55:17,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-02 06:55:17,738 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:17,738 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] [2024-12-02 06:55:17,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 06:55:17,739 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:17,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:17,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1759666809, now seen corresponding path program 1 times [2024-12-02 06:55:17,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:17,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726748065] [2024-12-02 06:55:17,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:17,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:17,977 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 06:55:17,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:17,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726748065] [2024-12-02 06:55:17,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726748065] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:17,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:17,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:55:17,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977959909] [2024-12-02 06:55:17,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:17,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:55:17,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:17,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:55:17,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:55:17,980 INFO L87 Difference]: Start difference. First operand 1600 states and 2582 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 06:55:18,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:18,078 INFO L93 Difference]: Finished difference Result 1653 states and 2664 transitions. [2024-12-02 06:55:18,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:55:18,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 27 [2024-12-02 06:55:18,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:18,085 INFO L225 Difference]: With dead ends: 1653 [2024-12-02 06:55:18,086 INFO L226 Difference]: Without dead ends: 1600 [2024-12-02 06:55:18,087 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 06:55:18,087 INFO L435 NwaCegarLoop]: 1601 mSDtfsCounter, 0 mSDsluCounter, 4758 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6359 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:55:18,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6359 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:55:18,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2024-12-02 06:55:18,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1600. [2024-12-02 06:55:18,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1598 states have (on average 1.590738423028786) internal successors, (2542), 1599 states have internal predecessors, (2542), 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 06:55:18,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 2542 transitions. [2024-12-02 06:55:18,138 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 2542 transitions. Word has length 27 [2024-12-02 06:55:18,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:18,138 INFO L471 AbstractCegarLoop]: Abstraction has 1600 states and 2542 transitions. [2024-12-02 06:55:18,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 06:55:18,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 2542 transitions. [2024-12-02 06:55:18,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-12-02 06:55:18,140 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:18,141 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] [2024-12-02 06:55:18,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:55:18,141 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:18,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:18,142 INFO L85 PathProgramCache]: Analyzing trace with hash -757922131, now seen corresponding path program 1 times [2024-12-02 06:55:18,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:18,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447025077] [2024-12-02 06:55:18,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:18,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:18,430 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 06:55:18,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:18,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447025077] [2024-12-02 06:55:18,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447025077] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:18,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:18,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:55:18,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965249284] [2024-12-02 06:55:18,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:18,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:55:18,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:18,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:55:18,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:55:18,432 INFO L87 Difference]: Start difference. First operand 1600 states and 2542 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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 06:55:18,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:18,788 INFO L93 Difference]: Finished difference Result 2188 states and 3478 transitions. [2024-12-02 06:55:18,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 06:55:18,789 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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 66 [2024-12-02 06:55:18,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:18,796 INFO L225 Difference]: With dead ends: 2188 [2024-12-02 06:55:18,797 INFO L226 Difference]: Without dead ends: 2139 [2024-12-02 06:55:18,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-12-02 06:55:18,799 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 9700 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9700 SdHoareTripleChecker+Valid, 3471 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:55:18,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9700 Valid, 3471 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:55:18,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2024-12-02 06:55:18,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 1647. [2024-12-02 06:55:18,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1647 states, 1645 states have (on average 1.5908814589665654) internal successors, (2617), 1646 states have internal predecessors, (2617), 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 06:55:18,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 2617 transitions. [2024-12-02 06:55:18,832 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 2617 transitions. Word has length 66 [2024-12-02 06:55:18,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:18,832 INFO L471 AbstractCegarLoop]: Abstraction has 1647 states and 2617 transitions. [2024-12-02 06:55:18,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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 06:55:18,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 2617 transitions. [2024-12-02 06:55:18,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-02 06:55:18,834 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:18,834 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] [2024-12-02 06:55:18,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:55:18,835 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:18,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:18,835 INFO L85 PathProgramCache]: Analyzing trace with hash 365578237, now seen corresponding path program 1 times [2024-12-02 06:55:18,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:18,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751297492] [2024-12-02 06:55:18,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:18,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:18,956 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 06:55:18,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:18,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751297492] [2024-12-02 06:55:18,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751297492] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:18,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:18,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:55:18,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96142627] [2024-12-02 06:55:18,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:18,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:55:18,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:18,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:55:18,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:55:18,958 INFO L87 Difference]: Start difference. First operand 1647 states and 2617 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 06:55:18,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:18,990 INFO L93 Difference]: Finished difference Result 1828 states and 2904 transitions. [2024-12-02 06:55:18,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:55:18,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2024-12-02 06:55:18,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:18,996 INFO L225 Difference]: With dead ends: 1828 [2024-12-02 06:55:18,996 INFO L226 Difference]: Without dead ends: 1732 [2024-12-02 06:55:18,997 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 06:55:18,998 INFO L435 NwaCegarLoop]: 1560 mSDtfsCounter, 1490 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1633 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 06:55:18,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1633 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:55:19,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2024-12-02 06:55:19,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1730. [2024-12-02 06:55:19,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1730 states, 1728 states have (on average 1.5896990740740742) internal successors, (2747), 1729 states have internal predecessors, (2747), 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 06:55:19,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 2747 transitions. [2024-12-02 06:55:19,029 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 2747 transitions. Word has length 68 [2024-12-02 06:55:19,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:19,030 INFO L471 AbstractCegarLoop]: Abstraction has 1730 states and 2747 transitions. [2024-12-02 06:55:19,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 06:55:19,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 2747 transitions. [2024-12-02 06:55:19,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-02 06:55:19,031 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:19,031 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] [2024-12-02 06:55:19,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:55:19,031 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:19,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:19,032 INFO L85 PathProgramCache]: Analyzing trace with hash 432071749, now seen corresponding path program 1 times [2024-12-02 06:55:19,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:19,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847696678] [2024-12-02 06:55:19,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:19,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:19,387 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 06:55:19,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:19,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847696678] [2024-12-02 06:55:19,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847696678] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:19,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:19,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:55:19,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374115709] [2024-12-02 06:55:19,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:19,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:55:19,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:19,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:55:19,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:55:19,389 INFO L87 Difference]: Start difference. First operand 1730 states and 2747 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 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 06:55:19,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:19,644 INFO L93 Difference]: Finished difference Result 1911 states and 3031 transitions. [2024-12-02 06:55:19,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:55:19,645 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 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 68 [2024-12-02 06:55:19,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:19,649 INFO L225 Difference]: With dead ends: 1911 [2024-12-02 06:55:19,649 INFO L226 Difference]: Without dead ends: 1732 [2024-12-02 06:55:19,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:55:19,650 INFO L435 NwaCegarLoop]: 1555 mSDtfsCounter, 3024 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3024 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:55:19,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3024 Valid, 1931 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:55:19,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2024-12-02 06:55:19,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1730. [2024-12-02 06:55:19,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1730 states, 1728 states have (on average 1.5885416666666667) internal successors, (2745), 1729 states have internal predecessors, (2745), 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 06:55:19,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 2745 transitions. [2024-12-02 06:55:19,679 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 2745 transitions. Word has length 68 [2024-12-02 06:55:19,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:19,679 INFO L471 AbstractCegarLoop]: Abstraction has 1730 states and 2745 transitions. [2024-12-02 06:55:19,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 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 06:55:19,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 2745 transitions. [2024-12-02 06:55:19,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 06:55:19,680 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:19,680 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] [2024-12-02 06:55:19,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:55:19,681 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:19,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:19,681 INFO L85 PathProgramCache]: Analyzing trace with hash 94599333, now seen corresponding path program 1 times [2024-12-02 06:55:19,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:19,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169052845] [2024-12-02 06:55:19,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:19,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:19,888 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 06:55:19,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:19,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169052845] [2024-12-02 06:55:19,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169052845] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:19,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:19,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:55:19,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667794563] [2024-12-02 06:55:19,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:19,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:55:19,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:19,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:55:19,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:55:19,892 INFO L87 Difference]: Start difference. First operand 1730 states and 2745 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 06:55:19,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:19,931 INFO L93 Difference]: Finished difference Result 1738 states and 2754 transitions. [2024-12-02 06:55:19,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:55:19,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 69 [2024-12-02 06:55:19,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:19,939 INFO L225 Difference]: With dead ends: 1738 [2024-12-02 06:55:19,940 INFO L226 Difference]: Without dead ends: 1736 [2024-12-02 06:55:19,940 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 06:55:19,941 INFO L435 NwaCegarLoop]: 1560 mSDtfsCounter, 0 mSDsluCounter, 4671 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6231 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 06:55:19,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6231 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:55:19,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2024-12-02 06:55:19,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1736. [2024-12-02 06:55:19,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1734 states have (on average 1.585928489042676) internal successors, (2750), 1735 states have internal predecessors, (2750), 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 06:55:19,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2750 transitions. [2024-12-02 06:55:19,969 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2750 transitions. Word has length 69 [2024-12-02 06:55:19,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:19,970 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2750 transitions. [2024-12-02 06:55:19,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 06:55:19,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2750 transitions. [2024-12-02 06:55:19,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-12-02 06:55:19,971 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:19,971 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] [2024-12-02 06:55:19,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:55:19,971 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:19,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:19,971 INFO L85 PathProgramCache]: Analyzing trace with hash -988941275, now seen corresponding path program 1 times [2024-12-02 06:55:19,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:19,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339309544] [2024-12-02 06:55:19,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:19,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:20,036 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 06:55:20,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:20,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339309544] [2024-12-02 06:55:20,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339309544] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:20,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:20,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:55:20,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031412950] [2024-12-02 06:55:20,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:20,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:55:20,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:20,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:55:20,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:55:20,038 INFO L87 Difference]: Start difference. First operand 1736 states and 2750 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 06:55:20,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:20,069 INFO L93 Difference]: Finished difference Result 2090 states and 3294 transitions. [2024-12-02 06:55:20,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:55:20,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2024-12-02 06:55:20,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:20,074 INFO L225 Difference]: With dead ends: 2090 [2024-12-02 06:55:20,074 INFO L226 Difference]: Without dead ends: 1905 [2024-12-02 06:55:20,075 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 06:55:20,076 INFO L435 NwaCegarLoop]: 1619 mSDtfsCounter, 1504 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1702 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 06:55:20,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1702 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:55:20,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1905 states. [2024-12-02 06:55:20,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1905 to 1903. [2024-12-02 06:55:20,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1903 states, 1901 states have (on average 1.5796948974224092) internal successors, (3003), 1902 states have internal predecessors, (3003), 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 06:55:20,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 3003 transitions. [2024-12-02 06:55:20,109 INFO L78 Accepts]: Start accepts. Automaton has 1903 states and 3003 transitions. Word has length 70 [2024-12-02 06:55:20,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:20,109 INFO L471 AbstractCegarLoop]: Abstraction has 1903 states and 3003 transitions. [2024-12-02 06:55:20,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 06:55:20,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1903 states and 3003 transitions. [2024-12-02 06:55:20,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-12-02 06:55:20,110 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:20,110 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] [2024-12-02 06:55:20,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 06:55:20,110 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:20,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:20,111 INFO L85 PathProgramCache]: Analyzing trace with hash -725084891, now seen corresponding path program 1 times [2024-12-02 06:55:20,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:20,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968443465] [2024-12-02 06:55:20,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:20,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:20,163 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 06:55:20,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:20,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968443465] [2024-12-02 06:55:20,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968443465] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:20,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:20,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:55:20,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630546242] [2024-12-02 06:55:20,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:20,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:55:20,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:20,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:55:20,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:55:20,165 INFO L87 Difference]: Start difference. First operand 1903 states and 3003 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 06:55:20,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:20,199 INFO L93 Difference]: Finished difference Result 2575 states and 4025 transitions. [2024-12-02 06:55:20,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:55:20,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2024-12-02 06:55:20,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:20,206 INFO L225 Difference]: With dead ends: 2575 [2024-12-02 06:55:20,206 INFO L226 Difference]: Without dead ends: 2223 [2024-12-02 06:55:20,207 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 06:55:20,207 INFO L435 NwaCegarLoop]: 1617 mSDtfsCounter, 1502 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1704 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 06:55:20,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1704 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:55:20,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2024-12-02 06:55:20,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 2221. [2024-12-02 06:55:20,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2221 states, 2219 states have (on average 1.5669220369535828) internal successors, (3477), 2220 states have internal predecessors, (3477), 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 06:55:20,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 3477 transitions. [2024-12-02 06:55:20,246 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 3477 transitions. Word has length 70 [2024-12-02 06:55:20,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:20,246 INFO L471 AbstractCegarLoop]: Abstraction has 2221 states and 3477 transitions. [2024-12-02 06:55:20,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 06:55:20,246 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 3477 transitions. [2024-12-02 06:55:20,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-12-02 06:55:20,247 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:20,247 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] [2024-12-02 06:55:20,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 06:55:20,247 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:20,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:20,247 INFO L85 PathProgramCache]: Analyzing trace with hash 513177125, now seen corresponding path program 1 times [2024-12-02 06:55:20,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:20,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787159333] [2024-12-02 06:55:20,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:20,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:20,298 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 06:55:20,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:20,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787159333] [2024-12-02 06:55:20,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787159333] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:20,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:20,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:55:20,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406231932] [2024-12-02 06:55:20,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:20,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:55:20,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:20,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:55:20,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:55:20,300 INFO L87 Difference]: Start difference. First operand 2221 states and 3477 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 06:55:20,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:20,341 INFO L93 Difference]: Finished difference Result 3497 states and 5391 transitions. [2024-12-02 06:55:20,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:55:20,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2024-12-02 06:55:20,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:20,348 INFO L225 Difference]: With dead ends: 3497 [2024-12-02 06:55:20,348 INFO L226 Difference]: Without dead ends: 2827 [2024-12-02 06:55:20,349 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 06:55:20,350 INFO L435 NwaCegarLoop]: 1615 mSDtfsCounter, 1500 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1706 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 06:55:20,350 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1706 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:55:20,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2827 states. [2024-12-02 06:55:20,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2827 to 2825. [2024-12-02 06:55:20,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2825 states, 2823 states have (on average 1.544810485299327) internal successors, (4361), 2824 states have internal predecessors, (4361), 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 06:55:20,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2825 states to 2825 states and 4361 transitions. [2024-12-02 06:55:20,404 INFO L78 Accepts]: Start accepts. Automaton has 2825 states and 4361 transitions. Word has length 70 [2024-12-02 06:55:20,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:20,404 INFO L471 AbstractCegarLoop]: Abstraction has 2825 states and 4361 transitions. [2024-12-02 06:55:20,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 06:55:20,404 INFO L276 IsEmpty]: Start isEmpty. Operand 2825 states and 4361 transitions. [2024-12-02 06:55:20,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-12-02 06:55:20,405 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:20,405 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] [2024-12-02 06:55:20,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:55:20,406 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:20,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:20,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1702291675, now seen corresponding path program 1 times [2024-12-02 06:55:20,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:20,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264214548] [2024-12-02 06:55:20,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:20,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:20,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:20,484 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 06:55:20,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:20,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264214548] [2024-12-02 06:55:20,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264214548] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:20,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:20,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:55:20,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084006260] [2024-12-02 06:55:20,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:20,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:55:20,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:20,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:55:20,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:55:20,486 INFO L87 Difference]: Start difference. First operand 2825 states and 4361 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 06:55:20,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:20,538 INFO L93 Difference]: Finished difference Result 5245 states and 7931 transitions. [2024-12-02 06:55:20,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:55:20,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2024-12-02 06:55:20,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:20,547 INFO L225 Difference]: With dead ends: 5245 [2024-12-02 06:55:20,547 INFO L226 Difference]: Without dead ends: 3971 [2024-12-02 06:55:20,550 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 06:55:20,550 INFO L435 NwaCegarLoop]: 1613 mSDtfsCounter, 1498 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1708 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 06:55:20,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1708 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:55:20,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3971 states. [2024-12-02 06:55:20,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3971 to 3969. [2024-12-02 06:55:20,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3969 states, 3967 states have (on average 1.5127300226871692) internal successors, (6001), 3968 states have internal predecessors, (6001), 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 06:55:20,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3969 states to 3969 states and 6001 transitions. [2024-12-02 06:55:20,628 INFO L78 Accepts]: Start accepts. Automaton has 3969 states and 6001 transitions. Word has length 70 [2024-12-02 06:55:20,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:20,628 INFO L471 AbstractCegarLoop]: Abstraction has 3969 states and 6001 transitions. [2024-12-02 06:55:20,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 06:55:20,629 INFO L276 IsEmpty]: Start isEmpty. Operand 3969 states and 6001 transitions. [2024-12-02 06:55:20,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-12-02 06:55:20,630 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:20,630 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] [2024-12-02 06:55:20,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 06:55:20,630 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:20,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:20,631 INFO L85 PathProgramCache]: Analyzing trace with hash 78641189, now seen corresponding path program 1 times [2024-12-02 06:55:20,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:20,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745780747] [2024-12-02 06:55:20,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:20,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:20,681 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 06:55:20,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:20,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745780747] [2024-12-02 06:55:20,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745780747] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:20,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:20,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:55:20,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269282164] [2024-12-02 06:55:20,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:20,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:55:20,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:20,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:55:20,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:55:20,682 INFO L87 Difference]: Start difference. First operand 3969 states and 6001 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 06:55:20,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:20,758 INFO L93 Difference]: Finished difference Result 8549 states and 12627 transitions. [2024-12-02 06:55:20,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:55:20,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2024-12-02 06:55:20,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:20,779 INFO L225 Difference]: With dead ends: 8549 [2024-12-02 06:55:20,779 INFO L226 Difference]: Without dead ends: 6131 [2024-12-02 06:55:20,782 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 06:55:20,783 INFO L435 NwaCegarLoop]: 1611 mSDtfsCounter, 1496 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1710 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 06:55:20,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1710 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:55:20,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6131 states. [2024-12-02 06:55:20,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6131 to 6129. [2024-12-02 06:55:20,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6129 states, 6127 states have (on average 1.4729884119471193) internal successors, (9025), 6128 states have internal predecessors, (9025), 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 06:55:20,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6129 states to 6129 states and 9025 transitions. [2024-12-02 06:55:20,904 INFO L78 Accepts]: Start accepts. Automaton has 6129 states and 9025 transitions. Word has length 70 [2024-12-02 06:55:20,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:20,905 INFO L471 AbstractCegarLoop]: Abstraction has 6129 states and 9025 transitions. [2024-12-02 06:55:20,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 06:55:20,905 INFO L276 IsEmpty]: Start isEmpty. Operand 6129 states and 9025 transitions. [2024-12-02 06:55:20,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-12-02 06:55:20,905 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:20,906 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] [2024-12-02 06:55:20,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 06:55:20,906 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:20,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:20,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1151855835, now seen corresponding path program 1 times [2024-12-02 06:55:20,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:20,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153728822] [2024-12-02 06:55:20,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:20,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:20,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:55:20,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:20,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153728822] [2024-12-02 06:55:20,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153728822] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:20,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:20,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:55:20,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598913022] [2024-12-02 06:55:20,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:20,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:55:20,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:20,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:55:20,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:55:20,956 INFO L87 Difference]: Start difference. First operand 6129 states and 9025 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 06:55:21,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:21,044 INFO L93 Difference]: Finished difference Result 11000 states and 16071 transitions. [2024-12-02 06:55:21,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:55:21,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2024-12-02 06:55:21,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:21,062 INFO L225 Difference]: With dead ends: 11000 [2024-12-02 06:55:21,063 INFO L226 Difference]: Without dead ends: 8438 [2024-12-02 06:55:21,066 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 06:55:21,067 INFO L435 NwaCegarLoop]: 1625 mSDtfsCounter, 1506 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1704 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 06:55:21,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1704 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:55:21,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8438 states. [2024-12-02 06:55:21,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8438 to 8436. [2024-12-02 06:55:21,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8436 states, 8434 states have (on average 1.4536400284562485) internal successors, (12260), 8435 states have internal predecessors, (12260), 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 06:55:21,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8436 states to 8436 states and 12260 transitions. [2024-12-02 06:55:21,223 INFO L78 Accepts]: Start accepts. Automaton has 8436 states and 12260 transitions. Word has length 70 [2024-12-02 06:55:21,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:21,223 INFO L471 AbstractCegarLoop]: Abstraction has 8436 states and 12260 transitions. [2024-12-02 06:55:21,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 06:55:21,223 INFO L276 IsEmpty]: Start isEmpty. Operand 8436 states and 12260 transitions. [2024-12-02 06:55:21,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 06:55:21,225 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:21,226 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] [2024-12-02 06:55:21,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 06:55:21,226 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:21,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:21,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1578521922, now seen corresponding path program 1 times [2024-12-02 06:55:21,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:21,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441825374] [2024-12-02 06:55:21,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:21,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:21,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:21,455 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 06:55:21,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:21,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441825374] [2024-12-02 06:55:21,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441825374] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:21,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:21,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:55:21,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403718237] [2024-12-02 06:55:21,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:21,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:55:21,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:21,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:55:21,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:55:21,457 INFO L87 Difference]: Start difference. First operand 8436 states and 12260 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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 06:55:22,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:22,223 INFO L93 Difference]: Finished difference Result 51170 states and 72971 transitions. [2024-12-02 06:55:22,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:55:22,224 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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 92 [2024-12-02 06:55:22,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:22,335 INFO L225 Difference]: With dead ends: 51170 [2024-12-02 06:55:22,336 INFO L226 Difference]: Without dead ends: 44288 [2024-12-02 06:55:22,352 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:55:22,352 INFO L435 NwaCegarLoop]: 1638 mSDtfsCounter, 8033 mSDsluCounter, 2375 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8033 SdHoareTripleChecker+Valid, 4013 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:55:22,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8033 Valid, 4013 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:55:22,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44288 states. [2024-12-02 06:55:23,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44288 to 15316. [2024-12-02 06:55:23,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15316 states, 15314 states have (on average 1.4337207783727308) internal successors, (21956), 15315 states have internal predecessors, (21956), 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 06:55:23,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15316 states to 15316 states and 21956 transitions. [2024-12-02 06:55:23,191 INFO L78 Accepts]: Start accepts. Automaton has 15316 states and 21956 transitions. Word has length 92 [2024-12-02 06:55:23,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:23,191 INFO L471 AbstractCegarLoop]: Abstraction has 15316 states and 21956 transitions. [2024-12-02 06:55:23,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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 06:55:23,192 INFO L276 IsEmpty]: Start isEmpty. Operand 15316 states and 21956 transitions. [2024-12-02 06:55:23,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 06:55:23,197 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:23,198 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] [2024-12-02 06:55:23,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 06:55:23,198 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:23,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:23,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1842378306, now seen corresponding path program 1 times [2024-12-02 06:55:23,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:23,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672135621] [2024-12-02 06:55:23,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:23,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:23,536 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 06:55:23,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:23,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672135621] [2024-12-02 06:55:23,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672135621] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:23,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:23,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:55:23,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265336714] [2024-12-02 06:55:23,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:23,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:55:23,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:23,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:55:23,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:55:23,539 INFO L87 Difference]: Start difference. First operand 15316 states and 21956 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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 06:55:24,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:24,477 INFO L93 Difference]: Finished difference Result 58050 states and 82667 transitions. [2024-12-02 06:55:24,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:55:24,477 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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 92 [2024-12-02 06:55:24,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:24,534 INFO L225 Difference]: With dead ends: 58050 [2024-12-02 06:55:24,534 INFO L226 Difference]: Without dead ends: 51168 [2024-12-02 06:55:24,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:55:24,545 INFO L435 NwaCegarLoop]: 1636 mSDtfsCounter, 8054 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8054 SdHoareTripleChecker+Valid, 3945 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:55:24,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8054 Valid, 3945 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:55:24,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51168 states. [2024-12-02 06:55:25,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51168 to 25652. [2024-12-02 06:55:25,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25652 states, 25650 states have (on average 1.4198830409356724) internal successors, (36420), 25651 states have internal predecessors, (36420), 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 06:55:25,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25652 states to 25652 states and 36420 transitions. [2024-12-02 06:55:25,357 INFO L78 Accepts]: Start accepts. Automaton has 25652 states and 36420 transitions. Word has length 92 [2024-12-02 06:55:25,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:25,358 INFO L471 AbstractCegarLoop]: Abstraction has 25652 states and 36420 transitions. [2024-12-02 06:55:25,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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 06:55:25,358 INFO L276 IsEmpty]: Start isEmpty. Operand 25652 states and 36420 transitions. [2024-12-02 06:55:25,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 06:55:25,362 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:25,362 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] [2024-12-02 06:55:25,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 06:55:25,362 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:25,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:25,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1214326974, now seen corresponding path program 1 times [2024-12-02 06:55:25,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:25,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558422832] [2024-12-02 06:55:25,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:25,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:25,630 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 06:55:25,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:25,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558422832] [2024-12-02 06:55:25,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558422832] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:25,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:25,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:55:25,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554392282] [2024-12-02 06:55:25,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:25,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:55:25,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:25,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:55:25,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:55:25,632 INFO L87 Difference]: Start difference. First operand 25652 states and 36420 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 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 06:55:26,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:26,901 INFO L93 Difference]: Finished difference Result 64930 states and 92363 transitions. [2024-12-02 06:55:26,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:55:26,901 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 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 92 [2024-12-02 06:55:26,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:26,956 INFO L225 Difference]: With dead ends: 64930 [2024-12-02 06:55:26,956 INFO L226 Difference]: Without dead ends: 58048 [2024-12-02 06:55:26,968 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:55:26,968 INFO L435 NwaCegarLoop]: 1634 mSDtfsCounter, 8093 mSDsluCounter, 2276 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8093 SdHoareTripleChecker+Valid, 3910 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:55:26,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8093 Valid, 3910 Invalid, 172 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:55:26,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58048 states. [2024-12-02 06:55:28,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58048 to 32532. [2024-12-02 06:55:28,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32532 states, 32530 states have (on average 1.4176452505379649) internal successors, (46116), 32531 states have internal predecessors, (46116), 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 06:55:28,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32532 states to 32532 states and 46116 transitions. [2024-12-02 06:55:28,191 INFO L78 Accepts]: Start accepts. Automaton has 32532 states and 46116 transitions. Word has length 92 [2024-12-02 06:55:28,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:28,191 INFO L471 AbstractCegarLoop]: Abstraction has 32532 states and 46116 transitions. [2024-12-02 06:55:28,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 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 06:55:28,191 INFO L276 IsEmpty]: Start isEmpty. Operand 32532 states and 46116 transitions. [2024-12-02 06:55:28,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 06:55:28,194 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:28,194 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] [2024-12-02 06:55:28,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 06:55:28,194 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:28,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:28,195 INFO L85 PathProgramCache]: Analyzing trace with hash 865171522, now seen corresponding path program 1 times [2024-12-02 06:55:28,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:28,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044837377] [2024-12-02 06:55:28,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:28,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:28,333 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 06:55:28,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:28,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044837377] [2024-12-02 06:55:28,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044837377] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:28,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:28,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:55:28,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779734575] [2024-12-02 06:55:28,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:28,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:55:28,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:28,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:55:28,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:55:28,334 INFO L87 Difference]: Start difference. First operand 32532 states and 46116 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 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 06:55:29,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:29,394 INFO L93 Difference]: Finished difference Result 71810 states and 102059 transitions. [2024-12-02 06:55:29,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:55:29,395 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 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 92 [2024-12-02 06:55:29,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:29,448 INFO L225 Difference]: With dead ends: 71810 [2024-12-02 06:55:29,448 INFO L226 Difference]: Without dead ends: 64928 [2024-12-02 06:55:29,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:55:29,460 INFO L435 NwaCegarLoop]: 1632 mSDtfsCounter, 8143 mSDsluCounter, 2269 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8143 SdHoareTripleChecker+Valid, 3901 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:55:29,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8143 Valid, 3901 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:55:29,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64928 states. [2024-12-02 06:55:30,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64928 to 39412. [2024-12-02 06:55:30,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39412 states, 39410 states have (on average 1.4161887845724435) internal successors, (55812), 39411 states have internal predecessors, (55812), 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 06:55:30,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39412 states to 39412 states and 55812 transitions. [2024-12-02 06:55:30,499 INFO L78 Accepts]: Start accepts. Automaton has 39412 states and 55812 transitions. Word has length 92 [2024-12-02 06:55:30,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:30,499 INFO L471 AbstractCegarLoop]: Abstraction has 39412 states and 55812 transitions. [2024-12-02 06:55:30,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 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 06:55:30,499 INFO L276 IsEmpty]: Start isEmpty. Operand 39412 states and 55812 transitions. [2024-12-02 06:55:30,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 06:55:30,502 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:30,502 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] [2024-12-02 06:55:30,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 06:55:30,503 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:30,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:30,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1648862910, now seen corresponding path program 1 times [2024-12-02 06:55:30,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:30,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913782487] [2024-12-02 06:55:30,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:30,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:30,644 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 06:55:30,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:30,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913782487] [2024-12-02 06:55:30,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913782487] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:30,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:30,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:55:30,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156667606] [2024-12-02 06:55:30,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:30,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:55:30,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:30,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:55:30,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:55:30,646 INFO L87 Difference]: Start difference. First operand 39412 states and 55812 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 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 06:55:31,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:31,989 INFO L93 Difference]: Finished difference Result 78690 states and 111755 transitions. [2024-12-02 06:55:31,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:55:31,990 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 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 92 [2024-12-02 06:55:31,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:32,104 INFO L225 Difference]: With dead ends: 78690 [2024-12-02 06:55:32,104 INFO L226 Difference]: Without dead ends: 71808 [2024-12-02 06:55:32,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:55:32,125 INFO L435 NwaCegarLoop]: 1633 mSDtfsCounter, 8057 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8057 SdHoareTripleChecker+Valid, 3991 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:55:32,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8057 Valid, 3991 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:55:32,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71808 states. [2024-12-02 06:55:33,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71808 to 46292. [2024-12-02 06:55:33,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46292 states, 46290 states have (on average 1.4151652624756967) internal successors, (65508), 46291 states have internal predecessors, (65508), 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 06:55:33,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46292 states to 46292 states and 65508 transitions. [2024-12-02 06:55:33,214 INFO L78 Accepts]: Start accepts. Automaton has 46292 states and 65508 transitions. Word has length 92 [2024-12-02 06:55:33,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:33,214 INFO L471 AbstractCegarLoop]: Abstraction has 46292 states and 65508 transitions. [2024-12-02 06:55:33,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 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 06:55:33,214 INFO L276 IsEmpty]: Start isEmpty. Operand 46292 states and 65508 transitions. [2024-12-02 06:55:33,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 06:55:33,218 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:33,218 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] [2024-12-02 06:55:33,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 06:55:33,219 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:33,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:33,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1415607362, now seen corresponding path program 1 times [2024-12-02 06:55:33,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:33,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092607183] [2024-12-02 06:55:33,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:33,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:33,407 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 06:55:33,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:33,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092607183] [2024-12-02 06:55:33,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092607183] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:33,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:33,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:55:33,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694003408] [2024-12-02 06:55:33,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:33,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:55:33,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:33,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:55:33,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:55:33,408 INFO L87 Difference]: Start difference. First operand 46292 states and 65508 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 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 06:55:34,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:34,898 INFO L93 Difference]: Finished difference Result 81538 states and 115819 transitions. [2024-12-02 06:55:34,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:55:34,898 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 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 92 [2024-12-02 06:55:34,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:34,966 INFO L225 Difference]: With dead ends: 81538 [2024-12-02 06:55:34,967 INFO L226 Difference]: Without dead ends: 76672 [2024-12-02 06:55:34,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:55:34,980 INFO L435 NwaCegarLoop]: 1631 mSDtfsCounter, 8033 mSDsluCounter, 2548 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8033 SdHoareTripleChecker+Valid, 4179 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:55:34,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8033 Valid, 4179 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:55:35,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76672 states. [2024-12-02 06:55:36,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76672 to 51156. [2024-12-02 06:55:36,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51156 states, 51154 states have (on average 1.415725065488525) internal successors, (72420), 51155 states have internal predecessors, (72420), 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 06:55:36,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51156 states to 51156 states and 72420 transitions. [2024-12-02 06:55:36,153 INFO L78 Accepts]: Start accepts. Automaton has 51156 states and 72420 transitions. Word has length 92 [2024-12-02 06:55:36,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:36,153 INFO L471 AbstractCegarLoop]: Abstraction has 51156 states and 72420 transitions. [2024-12-02 06:55:36,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 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 06:55:36,153 INFO L276 IsEmpty]: Start isEmpty. Operand 51156 states and 72420 transitions. [2024-12-02 06:55:36,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 06:55:36,157 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:36,157 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] [2024-12-02 06:55:36,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 06:55:36,157 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:36,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:36,158 INFO L85 PathProgramCache]: Analyzing trace with hash -821532615, now seen corresponding path program 1 times [2024-12-02 06:55:36,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:36,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018501070] [2024-12-02 06:55:36,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:36,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:36,355 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:55:36,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:36,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018501070] [2024-12-02 06:55:36,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018501070] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:36,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:36,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:55:36,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355378311] [2024-12-02 06:55:36,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:36,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:55:36,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:36,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:55:36,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:55:36,359 INFO L87 Difference]: Start difference. First operand 51156 states and 72420 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 06:55:37,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:37,555 INFO L93 Difference]: Finished difference Result 100760 states and 142374 transitions. [2024-12-02 06:55:37,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:55:37,555 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 06:55:37,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:37,591 INFO L225 Difference]: With dead ends: 100760 [2024-12-02 06:55:37,591 INFO L226 Difference]: Without dead ends: 51158 [2024-12-02 06:55:37,608 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 06:55:37,609 INFO L435 NwaCegarLoop]: 1606 mSDtfsCounter, 53 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3157 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 06:55:37,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3157 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:55:37,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51158 states. [2024-12-02 06:55:38,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51158 to 51156. [2024-12-02 06:55:38,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51156 states, 51154 states have (on average 1.40227548187825) internal successors, (71732), 51155 states have internal predecessors, (71732), 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 06:55:38,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51156 states to 51156 states and 71732 transitions. [2024-12-02 06:55:38,683 INFO L78 Accepts]: Start accepts. Automaton has 51156 states and 71732 transitions. Word has length 93 [2024-12-02 06:55:38,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:38,683 INFO L471 AbstractCegarLoop]: Abstraction has 51156 states and 71732 transitions. [2024-12-02 06:55:38,683 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 06:55:38,684 INFO L276 IsEmpty]: Start isEmpty. Operand 51156 states and 71732 transitions. [2024-12-02 06:55:38,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 06:55:38,685 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:38,685 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] [2024-12-02 06:55:38,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 06:55:38,686 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:38,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:38,686 INFO L85 PathProgramCache]: Analyzing trace with hash -513089126, now seen corresponding path program 1 times [2024-12-02 06:55:38,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:38,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535882258] [2024-12-02 06:55:38,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:38,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:38,753 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:55:38,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:38,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535882258] [2024-12-02 06:55:38,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535882258] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:38,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:38,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:55:38,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784017624] [2024-12-02 06:55:38,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:38,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:55:38,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:38,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:55:38,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:55:38,754 INFO L87 Difference]: Start difference. First operand 51156 states and 71732 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 06:55:39,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:39,300 INFO L93 Difference]: Finished difference Result 69422 states and 97437 transitions. [2024-12-02 06:55:39,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:55:39,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 06:55:39,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:39,325 INFO L225 Difference]: With dead ends: 69422 [2024-12-02 06:55:39,326 INFO L226 Difference]: Without dead ends: 19820 [2024-12-02 06:55:39,352 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 06:55:39,353 INFO L435 NwaCegarLoop]: 1604 mSDtfsCounter, 47 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3154 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:55:39,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3154 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:55:39,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19820 states. [2024-12-02 06:55:39,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19820 to 19811. [2024-12-02 06:55:39,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19811 states, 19809 states have (on average 1.4096117926195164) internal successors, (27923), 19810 states have internal predecessors, (27923), 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 06:55:39,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19811 states to 19811 states and 27923 transitions. [2024-12-02 06:55:39,804 INFO L78 Accepts]: Start accepts. Automaton has 19811 states and 27923 transitions. Word has length 94 [2024-12-02 06:55:39,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:39,804 INFO L471 AbstractCegarLoop]: Abstraction has 19811 states and 27923 transitions. [2024-12-02 06:55:39,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 06:55:39,804 INFO L276 IsEmpty]: Start isEmpty. Operand 19811 states and 27923 transitions. [2024-12-02 06:55:39,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 06:55:39,805 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:39,805 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] [2024-12-02 06:55:39,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 06:55:39,806 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:39,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:39,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1679011147, now seen corresponding path program 1 times [2024-12-02 06:55:39,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:39,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004317806] [2024-12-02 06:55:39,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:39,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:39,901 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:55:39,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:39,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004317806] [2024-12-02 06:55:39,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004317806] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:39,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:39,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:55:39,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694030083] [2024-12-02 06:55:39,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:39,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:55:39,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:39,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:55:39,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:55:39,902 INFO L87 Difference]: Start difference. First operand 19811 states and 27923 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 06:55:40,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:40,191 INFO L93 Difference]: Finished difference Result 28935 states and 40645 transitions. [2024-12-02 06:55:40,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:55:40,192 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 06:55:40,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:40,202 INFO L225 Difference]: With dead ends: 28935 [2024-12-02 06:55:40,202 INFO L226 Difference]: Without dead ends: 10693 [2024-12-02 06:55:40,209 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 06:55:40,210 INFO L435 NwaCegarLoop]: 1598 mSDtfsCounter, 49 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 3133 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 06:55:40,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 3133 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:55:40,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10693 states. [2024-12-02 06:55:40,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10693 to 10691. [2024-12-02 06:55:40,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10691 states, 10689 states have (on average 1.4110768079333895) internal successors, (15083), 10690 states have internal predecessors, (15083), 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 06:55:40,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10691 states to 10691 states and 15083 transitions. [2024-12-02 06:55:40,485 INFO L78 Accepts]: Start accepts. Automaton has 10691 states and 15083 transitions. Word has length 95 [2024-12-02 06:55:40,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:40,486 INFO L471 AbstractCegarLoop]: Abstraction has 10691 states and 15083 transitions. [2024-12-02 06:55:40,486 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 06:55:40,486 INFO L276 IsEmpty]: Start isEmpty. Operand 10691 states and 15083 transitions. [2024-12-02 06:55:40,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 06:55:40,487 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:40,487 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] [2024-12-02 06:55:40,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 06:55:40,487 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:40,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:40,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1514363890, now seen corresponding path program 1 times [2024-12-02 06:55:40,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:40,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943063725] [2024-12-02 06:55:40,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:40,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:40,626 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:55:40,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:40,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943063725] [2024-12-02 06:55:40,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943063725] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:40,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:40,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:55:40,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292952005] [2024-12-02 06:55:40,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:40,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:55:40,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:40,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:55:40,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:55:40,628 INFO L87 Difference]: Start difference. First operand 10691 states and 15083 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 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 06:55:43,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:43,643 INFO L93 Difference]: Finished difference Result 12946 states and 18478 transitions. [2024-12-02 06:55:43,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:55:43,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 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 06:55:43,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:43,651 INFO L225 Difference]: With dead ends: 12946 [2024-12-02 06:55:43,651 INFO L226 Difference]: Without dead ends: 11442 [2024-12-02 06:55:43,652 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:55:43,654 INFO L435 NwaCegarLoop]: 815 mSDtfsCounter, 1824 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 3152 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1824 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 3373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 3152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:55:43,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1824 Valid, 1417 Invalid, 3373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 3152 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-12-02 06:55:43,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11442 states. [2024-12-02 06:55:43,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11442 to 11442. [2024-12-02 06:55:43,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11442 states, 11440 states have (on average 1.3846153846153846) internal successors, (15840), 11441 states have internal predecessors, (15840), 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 06:55:43,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11442 states to 11442 states and 15840 transitions. [2024-12-02 06:55:43,851 INFO L78 Accepts]: Start accepts. Automaton has 11442 states and 15840 transitions. Word has length 95 [2024-12-02 06:55:43,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:43,851 INFO L471 AbstractCegarLoop]: Abstraction has 11442 states and 15840 transitions. [2024-12-02 06:55:43,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 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 06:55:43,851 INFO L276 IsEmpty]: Start isEmpty. Operand 11442 states and 15840 transitions. [2024-12-02 06:55:43,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 06:55:43,852 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:43,852 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] [2024-12-02 06:55:43,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 06:55:43,852 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:43,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:43,853 INFO L85 PathProgramCache]: Analyzing trace with hash -105500451, now seen corresponding path program 1 times [2024-12-02 06:55:43,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:43,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061821395] [2024-12-02 06:55:43,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:43,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:43,917 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:55:43,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:43,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061821395] [2024-12-02 06:55:43,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061821395] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:43,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:43,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:55:43,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610668043] [2024-12-02 06:55:43,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:43,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:55:43,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:43,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:55:43,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:55:43,919 INFO L87 Difference]: Start difference. First operand 11442 states and 15840 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 06:55:44,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:44,022 INFO L93 Difference]: Finished difference Result 16006 states and 22142 transitions. [2024-12-02 06:55:44,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:55:44,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2024-12-02 06:55:44,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:44,030 INFO L225 Difference]: With dead ends: 16006 [2024-12-02 06:55:44,030 INFO L226 Difference]: Without dead ends: 6884 [2024-12-02 06:55:44,033 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 06:55:44,034 INFO L435 NwaCegarLoop]: 1591 mSDtfsCounter, 46 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 3118 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 06:55:44,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 3118 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:55:44,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6884 states. [2024-12-02 06:55:44,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6884 to 6882. [2024-12-02 06:55:44,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6882 states, 6880 states have (on average 1.377906976744186) internal successors, (9480), 6881 states have internal predecessors, (9480), 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 06:55:44,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6882 states to 6882 states and 9480 transitions. [2024-12-02 06:55:44,145 INFO L78 Accepts]: Start accepts. Automaton has 6882 states and 9480 transitions. Word has length 97 [2024-12-02 06:55:44,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:44,146 INFO L471 AbstractCegarLoop]: Abstraction has 6882 states and 9480 transitions. [2024-12-02 06:55:44,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 06:55:44,146 INFO L276 IsEmpty]: Start isEmpty. Operand 6882 states and 9480 transitions. [2024-12-02 06:55:44,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 06:55:44,146 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:44,146 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] [2024-12-02 06:55:44,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 06:55:44,147 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:44,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:44,147 INFO L85 PathProgramCache]: Analyzing trace with hash 887952111, now seen corresponding path program 1 times [2024-12-02 06:55:44,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:44,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835345989] [2024-12-02 06:55:44,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:44,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:44,239 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:55:44,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:44,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835345989] [2024-12-02 06:55:44,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835345989] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:44,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:44,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:55:44,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929890117] [2024-12-02 06:55:44,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:44,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:55:44,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:44,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:55:44,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:55:44,240 INFO L87 Difference]: Start difference. First operand 6882 states and 9480 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 06:55:44,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:44,345 INFO L93 Difference]: Finished difference Result 9166 states and 12602 transitions. [2024-12-02 06:55:44,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:55:44,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 99 [2024-12-02 06:55:44,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:44,350 INFO L225 Difference]: With dead ends: 9166 [2024-12-02 06:55:44,350 INFO L226 Difference]: Without dead ends: 4604 [2024-12-02 06:55:44,352 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 06:55:44,353 INFO L435 NwaCegarLoop]: 1584 mSDtfsCounter, 43 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3103 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 06:55:44,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3103 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:55:44,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4604 states. [2024-12-02 06:55:44,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4604 to 4602. [2024-12-02 06:55:44,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4602 states, 4600 states have (on average 1.376086956521739) internal successors, (6330), 4601 states have internal predecessors, (6330), 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 06:55:44,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4602 states to 4602 states and 6330 transitions. [2024-12-02 06:55:44,430 INFO L78 Accepts]: Start accepts. Automaton has 4602 states and 6330 transitions. Word has length 99 [2024-12-02 06:55:44,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:44,430 INFO L471 AbstractCegarLoop]: Abstraction has 4602 states and 6330 transitions. [2024-12-02 06:55:44,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 06:55:44,430 INFO L276 IsEmpty]: Start isEmpty. Operand 4602 states and 6330 transitions. [2024-12-02 06:55:44,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 06:55:44,431 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:44,431 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] [2024-12-02 06:55:44,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 06:55:44,432 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:44,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:44,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1167946625, now seen corresponding path program 1 times [2024-12-02 06:55:44,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:44,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542747639] [2024-12-02 06:55:44,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:44,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:44,531 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:55:44,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:44,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542747639] [2024-12-02 06:55:44,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542747639] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:44,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:44,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:55:44,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455206016] [2024-12-02 06:55:44,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:44,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:55:44,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:44,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:55:44,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:55:44,533 INFO L87 Difference]: Start difference. First operand 4602 states and 6330 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 06:55:44,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:44,608 INFO L93 Difference]: Finished difference Result 5746 states and 7877 transitions. [2024-12-02 06:55:44,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:55:44,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 101 [2024-12-02 06:55:44,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:44,612 INFO L225 Difference]: With dead ends: 5746 [2024-12-02 06:55:44,612 INFO L226 Difference]: Without dead ends: 3464 [2024-12-02 06:55:44,614 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 06:55:44,614 INFO L435 NwaCegarLoop]: 1577 mSDtfsCounter, 40 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 3088 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 06:55:44,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 3088 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:55:44,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3464 states. [2024-12-02 06:55:44,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3464 to 3462. [2024-12-02 06:55:44,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3462 states, 3460 states have (on average 1.3786127167630058) internal successors, (4770), 3461 states have internal predecessors, (4770), 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 06:55:44,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3462 states to 3462 states and 4770 transitions. [2024-12-02 06:55:44,659 INFO L78 Accepts]: Start accepts. Automaton has 3462 states and 4770 transitions. Word has length 101 [2024-12-02 06:55:44,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:44,659 INFO L471 AbstractCegarLoop]: Abstraction has 3462 states and 4770 transitions. [2024-12-02 06:55:44,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 06:55:44,659 INFO L276 IsEmpty]: Start isEmpty. Operand 3462 states and 4770 transitions. [2024-12-02 06:55:44,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 06:55:44,660 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:44,660 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:55:44,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 06:55:44,660 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:44,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:44,661 INFO L85 PathProgramCache]: Analyzing trace with hash 2022994579, now seen corresponding path program 1 times [2024-12-02 06:55:44,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:44,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114734535] [2024-12-02 06:55:44,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:44,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:45,417 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:55:45,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:45,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114734535] [2024-12-02 06:55:45,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114734535] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:55:45,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944275355] [2024-12-02 06:55:45,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:45,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:55:45,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:55:45,419 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:55:45,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:55:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:45,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 06:55:45,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:55:45,746 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 06:55:45,747 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:55:46,219 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 06:55:46,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944275355] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:55:46,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:55:46,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 4] total 19 [2024-12-02 06:55:46,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388459861] [2024-12-02 06:55:46,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:55:46,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 06:55:46,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:46,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 06:55:46,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:55:46,221 INFO L87 Difference]: Start difference. First operand 3462 states and 4770 transitions. Second operand has 19 states, 19 states have (on average 15.263157894736842) internal successors, (290), 19 states have internal predecessors, (290), 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 06:55:48,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:48,777 INFO L93 Difference]: Finished difference Result 9875 states and 13277 transitions. [2024-12-02 06:55:48,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-12-02 06:55:48,778 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.263157894736842) internal successors, (290), 19 states have internal predecessors, (290), 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 103 [2024-12-02 06:55:48,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:48,784 INFO L225 Difference]: With dead ends: 9875 [2024-12-02 06:55:48,784 INFO L226 Difference]: Without dead ends: 8733 [2024-12-02 06:55:48,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1243 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=839, Invalid=3321, Unknown=0, NotChecked=0, Total=4160 [2024-12-02 06:55:48,787 INFO L435 NwaCegarLoop]: 1522 mSDtfsCounter, 21694 mSDsluCounter, 5011 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21694 SdHoareTripleChecker+Valid, 6533 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:55:48,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21694 Valid, 6533 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 06:55:48,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8733 states. [2024-12-02 06:55:48,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8733 to 8439. [2024-12-02 06:55:48,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8439 states, 8437 states have (on average 1.3286713286713288) internal successors, (11210), 8438 states have internal predecessors, (11210), 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 06:55:48,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8439 states to 8439 states and 11210 transitions. [2024-12-02 06:55:48,963 INFO L78 Accepts]: Start accepts. Automaton has 8439 states and 11210 transitions. Word has length 103 [2024-12-02 06:55:48,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:48,963 INFO L471 AbstractCegarLoop]: Abstraction has 8439 states and 11210 transitions. [2024-12-02 06:55:48,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.263157894736842) internal successors, (290), 19 states have internal predecessors, (290), 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 06:55:48,963 INFO L276 IsEmpty]: Start isEmpty. Operand 8439 states and 11210 transitions. [2024-12-02 06:55:48,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 06:55:48,964 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:48,964 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] [2024-12-02 06:55:48,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:55:49,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-12-02 06:55:49,165 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:49,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:49,165 INFO L85 PathProgramCache]: Analyzing trace with hash -479777408, now seen corresponding path program 1 times [2024-12-02 06:55:49,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:49,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004574626] [2024-12-02 06:55:49,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:49,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:49,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:50,224 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:55:50,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:50,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004574626] [2024-12-02 06:55:50,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004574626] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:55:50,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156913862] [2024-12-02 06:55:50,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:50,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:55:50,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:55:50,226 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:55:50,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 06:55:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:50,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 06:55:50,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:55:50,830 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:55:50,830 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:55:52,143 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:55:52,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156913862] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:55:52,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:55:52,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-12-02 06:55:52,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840812521] [2024-12-02 06:55:52,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:55:52,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 06:55:52,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:52,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 06:55:52,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2024-12-02 06:55:52,145 INFO L87 Difference]: Start difference. First operand 8439 states and 11210 transitions. Second operand has 28 states, 28 states have (on average 9.0) internal successors, (252), 27 states have internal predecessors, (252), 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 06:55:53,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:53,770 INFO L93 Difference]: Finished difference Result 23095 states and 30204 transitions. [2024-12-02 06:55:53,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 06:55:53,771 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.0) internal successors, (252), 27 states have internal predecessors, (252), 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 104 [2024-12-02 06:55:53,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:53,782 INFO L225 Difference]: With dead ends: 23095 [2024-12-02 06:55:53,782 INFO L226 Difference]: Without dead ends: 17310 [2024-12-02 06:55:53,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=505, Invalid=1847, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 06:55:53,787 INFO L435 NwaCegarLoop]: 1517 mSDtfsCounter, 19064 mSDsluCounter, 6522 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19064 SdHoareTripleChecker+Valid, 8039 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:55:53,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19064 Valid, 8039 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:55:53,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17310 states. [2024-12-02 06:55:54,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17310 to 17186. [2024-12-02 06:55:54,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17186 states, 17184 states have (on average 1.3057495344506518) internal successors, (22438), 17185 states have internal predecessors, (22438), 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 06:55:54,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17186 states to 17186 states and 22438 transitions. [2024-12-02 06:55:54,195 INFO L78 Accepts]: Start accepts. Automaton has 17186 states and 22438 transitions. Word has length 104 [2024-12-02 06:55:54,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:54,195 INFO L471 AbstractCegarLoop]: Abstraction has 17186 states and 22438 transitions. [2024-12-02 06:55:54,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.0) internal successors, (252), 27 states have internal predecessors, (252), 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 06:55:54,195 INFO L276 IsEmpty]: Start isEmpty. Operand 17186 states and 22438 transitions. [2024-12-02 06:55:54,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 06:55:54,196 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:54,196 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 06:55:54,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 06:55:54,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-12-02 06:55:54,396 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:54,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:54,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1353120014, now seen corresponding path program 1 times [2024-12-02 06:55:54,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:54,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838938298] [2024-12-02 06:55:54,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:54,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:54,664 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:55:54,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:54,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838938298] [2024-12-02 06:55:54,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838938298] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:55:54,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957907370] [2024-12-02 06:55:54,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:54,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:55:54,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:55:54,666 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:55:54,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 06:55:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:54,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 06:55:54,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:55:56,036 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:55:56,036 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:55:58,388 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:55:58,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957907370] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:55:58,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:55:58,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 16] total 35 [2024-12-02 06:55:58,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364895517] [2024-12-02 06:55:58,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:55:58,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-12-02 06:55:58,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:58,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-12-02 06:55:58,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=958, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 06:55:58,390 INFO L87 Difference]: Start difference. First operand 17186 states and 22438 transitions. Second operand has 35 states, 35 states have (on average 7.371428571428571) internal successors, (258), 35 states have internal predecessors, (258), 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 06:56:01,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:56:01,644 INFO L93 Difference]: Finished difference Result 53972 states and 70188 transitions. [2024-12-02 06:56:01,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-12-02 06:56:01,645 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 7.371428571428571) internal successors, (258), 35 states have internal predecessors, (258), 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 104 [2024-12-02 06:56:01,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:56:01,672 INFO L225 Difference]: With dead ends: 53972 [2024-12-02 06:56:01,672 INFO L226 Difference]: Without dead ends: 39546 [2024-12-02 06:56:01,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1541 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1410, Invalid=4290, Unknown=0, NotChecked=0, Total=5700 [2024-12-02 06:56:01,684 INFO L435 NwaCegarLoop]: 1561 mSDtfsCounter, 19618 mSDsluCounter, 12995 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19618 SdHoareTripleChecker+Valid, 14556 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:56:01,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19618 Valid, 14556 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 06:56:01,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39546 states. [2024-12-02 06:56:02,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39546 to 28287. [2024-12-02 06:56:02,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28287 states, 28285 states have (on average 1.286158741382358) internal successors, (36379), 28286 states have internal predecessors, (36379), 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 06:56:02,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28287 states to 28287 states and 36379 transitions. [2024-12-02 06:56:02,563 INFO L78 Accepts]: Start accepts. Automaton has 28287 states and 36379 transitions. Word has length 104 [2024-12-02 06:56:02,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:56:02,563 INFO L471 AbstractCegarLoop]: Abstraction has 28287 states and 36379 transitions. [2024-12-02 06:56:02,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 7.371428571428571) internal successors, (258), 35 states have internal predecessors, (258), 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 06:56:02,563 INFO L276 IsEmpty]: Start isEmpty. Operand 28287 states and 36379 transitions. [2024-12-02 06:56:02,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 06:56:02,564 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:56:02,564 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 06:56:02,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 06:56:02,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-02 06:56:02,764 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:56:02,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:56:02,765 INFO L85 PathProgramCache]: Analyzing trace with hash -72239707, now seen corresponding path program 1 times [2024-12-02 06:56:02,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:56:02,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902509729] [2024-12-02 06:56:02,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:56:02,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:56:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:56:03,058 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:56:03,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:56:03,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902509729] [2024-12-02 06:56:03,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902509729] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:56:03,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768874816] [2024-12-02 06:56:03,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:56:03,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:56:03,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:56:03,060 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:56:03,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 06:56:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:56:03,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 06:56:03,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:56:03,631 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:56:03,631 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:56:04,464 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:56:04,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768874816] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:56:04,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:56:04,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-12-02 06:56:04,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390436892] [2024-12-02 06:56:04,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:56:04,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 06:56:04,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:56:04,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 06:56:04,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-12-02 06:56:04,466 INFO L87 Difference]: Start difference. First operand 28287 states and 36379 transitions. Second operand has 23 states, 23 states have (on average 10.73913043478261) internal successors, (247), 22 states have internal predecessors, (247), 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 06:56:06,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:56:06,135 INFO L93 Difference]: Finished difference Result 80521 states and 103481 transitions. [2024-12-02 06:56:06,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 06:56:06,136 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.73913043478261) internal successors, (247), 22 states have internal predecessors, (247), 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 105 [2024-12-02 06:56:06,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:56:06,173 INFO L225 Difference]: With dead ends: 80521 [2024-12-02 06:56:06,173 INFO L226 Difference]: Without dead ends: 55494 [2024-12-02 06:56:06,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=269, Invalid=787, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 06:56:06,184 INFO L435 NwaCegarLoop]: 1529 mSDtfsCounter, 9515 mSDsluCounter, 3344 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9515 SdHoareTripleChecker+Valid, 4873 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:56:06,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9515 Valid, 4873 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:56:06,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55494 states. [2024-12-02 06:56:07,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55494 to 54816. [2024-12-02 06:56:07,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54816 states, 54814 states have (on average 1.2680337140146678) internal successors, (69506), 54815 states have internal predecessors, (69506), 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 06:56:07,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54816 states to 54816 states and 69506 transitions. [2024-12-02 06:56:07,772 INFO L78 Accepts]: Start accepts. Automaton has 54816 states and 69506 transitions. Word has length 105 [2024-12-02 06:56:07,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:56:07,772 INFO L471 AbstractCegarLoop]: Abstraction has 54816 states and 69506 transitions. [2024-12-02 06:56:07,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.73913043478261) internal successors, (247), 22 states have internal predecessors, (247), 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 06:56:07,773 INFO L276 IsEmpty]: Start isEmpty. Operand 54816 states and 69506 transitions. [2024-12-02 06:56:07,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 06:56:07,774 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:56:07,774 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 06:56:07,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 06:56:07,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-02 06:56:07,974 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:56:07,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:56:07,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1110372443, now seen corresponding path program 1 times [2024-12-02 06:56:07,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:56:07,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659527470] [2024-12-02 06:56:07,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:56:07,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:56:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:56:08,259 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:56:08,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:56:08,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659527470] [2024-12-02 06:56:08,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659527470] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:56:08,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562641492] [2024-12-02 06:56:08,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:56:08,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:56:08,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:56:08,261 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:56:08,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 06:56:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:56:08,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 06:56:08,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:56:08,865 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:56:08,865 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:56:09,812 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:56:09,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562641492] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:56:09,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:56:09,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-12-02 06:56:09,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080355272] [2024-12-02 06:56:09,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:56:09,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 06:56:09,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:56:09,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 06:56:09,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2024-12-02 06:56:09,814 INFO L87 Difference]: Start difference. First operand 54816 states and 69506 transitions. Second operand has 21 states, 21 states have (on average 11.80952380952381) internal successors, (248), 20 states have internal predecessors, (248), 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 06:56:11,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:56:11,848 INFO L93 Difference]: Finished difference Result 102602 states and 129828 transitions. [2024-12-02 06:56:11,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 06:56:11,848 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 11.80952380952381) internal successors, (248), 20 states have internal predecessors, (248), 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 105 [2024-12-02 06:56:11,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:56:11,899 INFO L225 Difference]: With dead ends: 102602 [2024-12-02 06:56:11,899 INFO L226 Difference]: Without dead ends: 56572 [2024-12-02 06:56:11,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=237, Invalid=693, Unknown=0, NotChecked=0, Total=930 [2024-12-02 06:56:11,922 INFO L435 NwaCegarLoop]: 1529 mSDtfsCounter, 13749 mSDsluCounter, 3310 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13749 SdHoareTripleChecker+Valid, 4839 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:56:11,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13749 Valid, 4839 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:56:11,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56572 states. [2024-12-02 06:56:13,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56572 to 52324. [2024-12-02 06:56:13,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52324 states, 52322 states have (on average 1.2512327510416268) internal successors, (65467), 52323 states have internal predecessors, (65467), 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 06:56:13,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52324 states to 52324 states and 65467 transitions. [2024-12-02 06:56:13,699 INFO L78 Accepts]: Start accepts. Automaton has 52324 states and 65467 transitions. Word has length 105 [2024-12-02 06:56:13,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:56:13,700 INFO L471 AbstractCegarLoop]: Abstraction has 52324 states and 65467 transitions. [2024-12-02 06:56:13,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.80952380952381) internal successors, (248), 20 states have internal predecessors, (248), 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 06:56:13,700 INFO L276 IsEmpty]: Start isEmpty. Operand 52324 states and 65467 transitions. [2024-12-02 06:56:13,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 06:56:13,701 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:56:13,701 INFO L218 NwaCegarLoop]: trace histogram [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 06:56:13,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 06:56:13,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:56:13,901 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:56:13,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:56:13,902 INFO L85 PathProgramCache]: Analyzing trace with hash 449761474, now seen corresponding path program 1 times [2024-12-02 06:56:13,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:56:13,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844424783] [2024-12-02 06:56:13,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:56:13,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:56:13,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:56:14,148 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:56:14,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:56:14,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844424783] [2024-12-02 06:56:14,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844424783] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:56:14,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678382961] [2024-12-02 06:56:14,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:56:14,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:56:14,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:56:14,150 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:56:14,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 06:56:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:56:14,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 06:56:14,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:56:14,872 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:56:14,872 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:56:16,147 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:56:16,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678382961] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:56:16,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:56:16,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 29 [2024-12-02 06:56:16,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131804801] [2024-12-02 06:56:16,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:56:16,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 06:56:16,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:56:16,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 06:56:16,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2024-12-02 06:56:16,149 INFO L87 Difference]: Start difference. First operand 52324 states and 65467 transitions. Second operand has 29 states, 29 states have (on average 9.862068965517242) internal successors, (286), 29 states have internal predecessors, (286), 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 06:56:19,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:56:19,512 INFO L93 Difference]: Finished difference Result 147646 states and 184699 transitions. [2024-12-02 06:56:19,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 06:56:19,513 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.862068965517242) internal successors, (286), 29 states have internal predecessors, (286), 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 106 [2024-12-02 06:56:19,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:56:19,597 INFO L225 Difference]: With dead ends: 147646 [2024-12-02 06:56:19,597 INFO L226 Difference]: Without dead ends: 103759 [2024-12-02 06:56:19,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=437, Invalid=1455, Unknown=0, NotChecked=0, Total=1892 [2024-12-02 06:56:19,625 INFO L435 NwaCegarLoop]: 1541 mSDtfsCounter, 13852 mSDsluCounter, 9640 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13852 SdHoareTripleChecker+Valid, 11181 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:56:19,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13852 Valid, 11181 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:56:19,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103759 states. [2024-12-02 06:56:23,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103759 to 102627. [2024-12-02 06:56:23,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102627 states, 102625 states have (on average 1.236121802679659) internal successors, (126857), 102626 states have internal predecessors, (126857), 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 06:56:23,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102627 states to 102627 states and 126857 transitions. [2024-12-02 06:56:23,512 INFO L78 Accepts]: Start accepts. Automaton has 102627 states and 126857 transitions. Word has length 106 [2024-12-02 06:56:23,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:56:23,512 INFO L471 AbstractCegarLoop]: Abstraction has 102627 states and 126857 transitions. [2024-12-02 06:56:23,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.862068965517242) internal successors, (286), 29 states have internal predecessors, (286), 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 06:56:23,513 INFO L276 IsEmpty]: Start isEmpty. Operand 102627 states and 126857 transitions. [2024-12-02 06:56:23,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 06:56:23,514 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:56:23,514 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 06:56:23,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 06:56:23,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-12-02 06:56:23,715 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:56:23,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:56:23,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1895182117, now seen corresponding path program 1 times [2024-12-02 06:56:23,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:56:23,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254930268] [2024-12-02 06:56:23,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:56:23,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:56:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:56:24,424 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:56:24,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:56:24,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254930268] [2024-12-02 06:56:24,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254930268] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:56:24,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312908017] [2024-12-02 06:56:24,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:56:24,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:56:24,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:56:24,426 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:56:24,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 06:56:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:56:24,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 06:56:24,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:56:25,259 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:56:25,259 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:56:26,411 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:56:26,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312908017] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:56:26,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:56:26,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2024-12-02 06:56:26,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701928738] [2024-12-02 06:56:26,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:56:26,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-12-02 06:56:26,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:56:26,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-12-02 06:56:26,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=945, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 06:56:26,412 INFO L87 Difference]: Start difference. First operand 102627 states and 126857 transitions. Second operand has 33 states, 33 states have (on average 9.242424242424242) internal successors, (305), 33 states have internal predecessors, (305), 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 06:56:32,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:56:32,589 INFO L93 Difference]: Finished difference Result 142264 states and 175370 transitions. [2024-12-02 06:56:32,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-12-02 06:56:32,590 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 9.242424242424242) internal successors, (305), 33 states have internal predecessors, (305), 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 107 [2024-12-02 06:56:32,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:56:32,676 INFO L225 Difference]: With dead ends: 142264 [2024-12-02 06:56:32,676 INFO L226 Difference]: Without dead ends: 101686 [2024-12-02 06:56:32,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1480 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1326, Invalid=4680, Unknown=0, NotChecked=0, Total=6006 [2024-12-02 06:56:32,704 INFO L435 NwaCegarLoop]: 1543 mSDtfsCounter, 8122 mSDsluCounter, 21769 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8122 SdHoareTripleChecker+Valid, 23312 SdHoareTripleChecker+Invalid, 1705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:56:32,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8122 Valid, 23312 Invalid, 1705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1667 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 06:56:32,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101686 states. [2024-12-02 06:56:35,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101686 to 87814. [2024-12-02 06:56:35,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87814 states, 87812 states have (on average 1.2320070149865623) internal successors, (108185), 87813 states have internal predecessors, (108185), 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 06:56:35,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87814 states to 87814 states and 108185 transitions. [2024-12-02 06:56:35,717 INFO L78 Accepts]: Start accepts. Automaton has 87814 states and 108185 transitions. Word has length 107 [2024-12-02 06:56:35,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:56:35,717 INFO L471 AbstractCegarLoop]: Abstraction has 87814 states and 108185 transitions. [2024-12-02 06:56:35,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 9.242424242424242) internal successors, (305), 33 states have internal predecessors, (305), 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 06:56:35,717 INFO L276 IsEmpty]: Start isEmpty. Operand 87814 states and 108185 transitions. [2024-12-02 06:56:35,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 06:56:35,718 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:56:35,718 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 06:56:35,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 06:56:35,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:56:35,919 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:56:35,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:56:35,919 INFO L85 PathProgramCache]: Analyzing trace with hash 580307637, now seen corresponding path program 1 times [2024-12-02 06:56:35,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:56:35,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377071221] [2024-12-02 06:56:35,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:56:35,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:56:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:56:36,205 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:56:36,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:56:36,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377071221] [2024-12-02 06:56:36,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377071221] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:56:36,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529379336] [2024-12-02 06:56:36,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:56:36,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:56:36,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:56:36,207 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:56:36,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 06:56:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:56:36,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 06:56:36,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:56:36,768 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:56:36,768 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:56:37,414 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:56:37,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529379336] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:56:37,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:56:37,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-12-02 06:56:37,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278395211] [2024-12-02 06:56:37,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:56:37,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 06:56:37,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:56:37,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 06:56:37,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2024-12-02 06:56:37,416 INFO L87 Difference]: Start difference. First operand 87814 states and 108185 transitions. Second operand has 22 states, 22 states have (on average 10.954545454545455) internal successors, (241), 21 states have internal predecessors, (241), 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 06:56:42,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:56:42,646 INFO L93 Difference]: Finished difference Result 253106 states and 312582 transitions. [2024-12-02 06:56:42,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 06:56:42,647 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.954545454545455) internal successors, (241), 21 states have internal predecessors, (241), 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 107 [2024-12-02 06:56:42,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:56:42,792 INFO L225 Difference]: With dead ends: 253106 [2024-12-02 06:56:42,792 INFO L226 Difference]: Without dead ends: 174812 [2024-12-02 06:56:42,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2024-12-02 06:56:42,830 INFO L435 NwaCegarLoop]: 1551 mSDtfsCounter, 13941 mSDsluCounter, 3432 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13941 SdHoareTripleChecker+Valid, 4983 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:56:42,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13941 Valid, 4983 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:56:42,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174812 states. [2024-12-02 06:56:49,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174812 to 173152. [2024-12-02 06:56:49,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173152 states, 173150 states have (on average 1.2210164597170083) internal successors, (211419), 173151 states have internal predecessors, (211419), 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 06:56:49,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173152 states to 173152 states and 211419 transitions. [2024-12-02 06:56:49,392 INFO L78 Accepts]: Start accepts. Automaton has 173152 states and 211419 transitions. Word has length 107 [2024-12-02 06:56:49,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:56:49,393 INFO L471 AbstractCegarLoop]: Abstraction has 173152 states and 211419 transitions. [2024-12-02 06:56:49,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.954545454545455) internal successors, (241), 21 states have internal predecessors, (241), 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 06:56:49,393 INFO L276 IsEmpty]: Start isEmpty. Operand 173152 states and 211419 transitions. [2024-12-02 06:56:49,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 06:56:49,394 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:56:49,395 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 06:56:49,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 06:56:49,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:56:49,595 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:56:49,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:56:49,595 INFO L85 PathProgramCache]: Analyzing trace with hash -2054357102, now seen corresponding path program 1 times [2024-12-02 06:56:49,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:56:49,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924468894] [2024-12-02 06:56:49,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:56:49,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:56:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:56:53,719 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:56:53,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:56:53,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924468894] [2024-12-02 06:56:53,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924468894] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:56:53,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463691667] [2024-12-02 06:56:53,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:56:53,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:56:53,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:56:53,721 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:56:53,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 06:56:53,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:56:53,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-12-02 06:56:53,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:57:05,075 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:57:05,075 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:57:18,253 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:57:18,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463691667] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:57:18,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:57:18,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 32, 37] total 103 [2024-12-02 06:57:18,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867912317] [2024-12-02 06:57:18,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:57:18,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2024-12-02 06:57:18,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:57:18,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2024-12-02 06:57:18,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=948, Invalid=9558, Unknown=0, NotChecked=0, Total=10506 [2024-12-02 06:57:18,258 INFO L87 Difference]: Start difference. First operand 173152 states and 211419 transitions. Second operand has 103 states, 103 states have (on average 3.0097087378640777) internal successors, (310), 103 states have internal predecessors, (310), 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 07:04:44,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:04:44,768 INFO L93 Difference]: Finished difference Result 669819 states and 812196 transitions. [2024-12-02 07:04:44,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 523 states. [2024-12-02 07:04:44,769 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 3.0097087378640777) internal successors, (310), 103 states have internal predecessors, (310), 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 108 [2024-12-02 07:04:44,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:04:45,644 INFO L225 Difference]: With dead ends: 669819 [2024-12-02 07:04:45,644 INFO L226 Difference]: Without dead ends: 609728 [2024-12-02 07:04:46,051 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 765 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 615 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156552 ImplicationChecksByTransitivity, 407.4s TimeCoverageRelationStatistics Valid=55195, Invalid=324877, Unknown=0, NotChecked=0, Total=380072 [2024-12-02 07:04:46,052 INFO L435 NwaCegarLoop]: 1708 mSDtfsCounter, 53830 mSDsluCounter, 53295 mSDsCounter, 0 mSdLazyCounter, 20485 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53830 SdHoareTripleChecker+Valid, 55003 SdHoareTripleChecker+Invalid, 20937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 20485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:04:46,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53830 Valid, 55003 Invalid, 20937 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [452 Valid, 20485 Invalid, 0 Unknown, 0 Unchecked, 25.6s Time] [2024-12-02 07:04:46,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609728 states. [2024-12-02 07:04:57,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609728 to 183485. [2024-12-02 07:04:57,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183485 states, 183483 states have (on average 1.2214919093321996) internal successors, (224123), 183484 states have internal predecessors, (224123), 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 07:04:57,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183485 states to 183485 states and 224123 transitions. [2024-12-02 07:04:58,012 INFO L78 Accepts]: Start accepts. Automaton has 183485 states and 224123 transitions. Word has length 108 [2024-12-02 07:04:58,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:04:58,013 INFO L471 AbstractCegarLoop]: Abstraction has 183485 states and 224123 transitions. [2024-12-02 07:04:58,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 3.0097087378640777) internal successors, (310), 103 states have internal predecessors, (310), 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 07:04:58,013 INFO L276 IsEmpty]: Start isEmpty. Operand 183485 states and 224123 transitions. [2024-12-02 07:04:58,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 07:04:58,014 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:04:58,015 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 07:04:58,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-12-02 07:04:58,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-12-02 07:04:58,215 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:04:58,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:58,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1629652605, now seen corresponding path program 1 times [2024-12-02 07:04:58,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:58,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167197221] [2024-12-02 07:04:58,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:58,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:58,836 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:58,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:58,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167197221] [2024-12-02 07:04:58,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167197221] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:04:58,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71140982] [2024-12-02 07:04:58,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:58,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:58,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:58,837 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:04:58,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 07:04:58,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:58,970 INFO L256 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 07:04:58,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:04:59,896 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:59,896 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:05:01,541 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:05:01,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71140982] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:05:01,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:05:01,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 17] total 37 [2024-12-02 07:05:01,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113941199] [2024-12-02 07:05:01,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:05:01,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-12-02 07:05:01,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:05:01,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-12-02 07:05:01,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1163, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 07:05:01,542 INFO L87 Difference]: Start difference. First operand 183485 states and 224123 transitions. Second operand has 37 states, 37 states have (on average 7.702702702702703) internal successors, (285), 37 states have internal predecessors, (285), 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 07:05:22,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:05:22,334 INFO L93 Difference]: Finished difference Result 463421 states and 566942 transitions. [2024-12-02 07:05:22,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-12-02 07:05:22,335 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 7.702702702702703) internal successors, (285), 37 states have internal predecessors, (285), 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 109 [2024-12-02 07:05:22,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:05:22,720 INFO L225 Difference]: With dead ends: 463421 [2024-12-02 07:05:22,720 INFO L226 Difference]: Without dead ends: 403588 [2024-12-02 07:05:22,758 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1104 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=838, Invalid=3452, Unknown=0, NotChecked=0, Total=4290 [2024-12-02 07:05:22,758 INFO L435 NwaCegarLoop]: 1535 mSDtfsCounter, 12845 mSDsluCounter, 17152 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12845 SdHoareTripleChecker+Valid, 18687 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:05:22,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12845 Valid, 18687 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:05:22,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403588 states. [2024-12-02 07:05:31,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403588 to 163821. [2024-12-02 07:05:31,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163821 states, 163819 states have (on average 1.2196570605363237) internal successors, (199803), 163820 states have internal predecessors, (199803), 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 07:05:31,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163821 states to 163821 states and 199803 transitions. [2024-12-02 07:05:31,857 INFO L78 Accepts]: Start accepts. Automaton has 163821 states and 199803 transitions. Word has length 109 [2024-12-02 07:05:31,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:05:31,858 INFO L471 AbstractCegarLoop]: Abstraction has 163821 states and 199803 transitions. [2024-12-02 07:05:31,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 7.702702702702703) internal successors, (285), 37 states have internal predecessors, (285), 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 07:05:31,858 INFO L276 IsEmpty]: Start isEmpty. Operand 163821 states and 199803 transitions. [2024-12-02 07:05:31,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 07:05:31,859 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:05:31,859 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 07:05:31,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 07:05:32,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:05:32,060 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:05:32,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:05:32,060 INFO L85 PathProgramCache]: Analyzing trace with hash 674488917, now seen corresponding path program 1 times [2024-12-02 07:05:32,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:05:32,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84805712] [2024-12-02 07:05:32,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:05:32,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:05:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:05:33,620 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:05:33,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:05:33,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84805712] [2024-12-02 07:05:33,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84805712] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:05:33,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108078159] [2024-12-02 07:05:33,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:05:33,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:05:33,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:05:33,622 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:05:33,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_047694d8-9aeb-467f-b7e6-1544c8ed0b79/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 07:05:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:05:33,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 07:05:33,773 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:05:36,580 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:05:36,580 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:05:39,457 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:05:39,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108078159] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:05:39,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:05:39,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 15, 17] total 53 [2024-12-02 07:05:39,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796816477] [2024-12-02 07:05:39,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:05:39,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-12-02 07:05:39,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:05:39,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-12-02 07:05:39,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=2575, Unknown=0, NotChecked=0, Total=2756 [2024-12-02 07:05:39,459 INFO L87 Difference]: Start difference. First operand 163821 states and 199803 transitions. Second operand has 53 states, 53 states have (on average 5.679245283018868) internal successors, (301), 53 states have internal predecessors, (301), 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)