./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem16_label02.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_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/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_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem16_label02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/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_1f167b99-2771-4a26-a661-f869ef814d5c/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 540d5c4f35934e1abeb0886e7556fb35e244ff515a3f2091d43a3a4e43fb5fb5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:27:09,271 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:27:09,323 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 15:27:09,327 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:27:09,327 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:27:09,349 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:27:09,350 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:27:09,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:27:09,350 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:27:09,350 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:27:09,351 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:27:09,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:27:09,351 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:27:09,351 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:27:09,351 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:27:09,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:27:09,352 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:27:09,352 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:27:09,352 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:27:09,352 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:27:09,352 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:27:09,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:27:09,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:27:09,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:27:09,352 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:27:09,352 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:27:09,352 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:27:09,352 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:27:09,353 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:27:09,353 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:27:09,353 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:27:09,353 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:27:09,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:27:09,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:27:09,353 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:27:09,353 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:27:09,353 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:27:09,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:27:09,353 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:27:09,354 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:27:09,354 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:27:09,354 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:27:09,354 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:27:09,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:27:09,354 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:27:09,354 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:27:09,354 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:27:09,354 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:27:09,354 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_1f167b99-2771-4a26-a661-f869ef814d5c/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 -> 540d5c4f35934e1abeb0886e7556fb35e244ff515a3f2091d43a3a4e43fb5fb5 [2024-12-02 15:27:09,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:27:09,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:27:09,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:27:09,563 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:27:09,563 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:27:09,564 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/eca-rers2012/Problem16_label02.c [2024-12-02 15:27:12,183 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/data/f87125dd6/a7a1059612004b49810894217b65442d/FLAG6828d6597 [2024-12-02 15:27:12,509 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:27:12,509 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/sv-benchmarks/c/eca-rers2012/Problem16_label02.c [2024-12-02 15:27:12,521 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/data/f87125dd6/a7a1059612004b49810894217b65442d/FLAG6828d6597 [2024-12-02 15:27:12,770 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/data/f87125dd6/a7a1059612004b49810894217b65442d [2024-12-02 15:27:12,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:27:12,773 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:27:12,774 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:27:12,774 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:27:12,777 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:27:12,777 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:27:12" (1/1) ... [2024-12-02 15:27:12,778 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@324652b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:27:12, skipping insertion in model container [2024-12-02 15:27:12,778 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:27:12" (1/1) ... [2024-12-02 15:27:12,821 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:27:13,016 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_1f167b99-2771-4a26-a661-f869ef814d5c/sv-benchmarks/c/eca-rers2012/Problem16_label02.c[6387,6400] [2024-12-02 15:27:13,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:27:13,334 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:27:13,356 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_1f167b99-2771-4a26-a661-f869ef814d5c/sv-benchmarks/c/eca-rers2012/Problem16_label02.c[6387,6400] [2024-12-02 15:27:13,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:27:13,541 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:27:13,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:27:13 WrapperNode [2024-12-02 15:27:13,542 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:27:13,542 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:27:13,542 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:27:13,542 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:27:13,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:27:13" (1/1) ... [2024-12-02 15:27:13,565 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:27:13" (1/1) ... [2024-12-02 15:27:13,661 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1769 [2024-12-02 15:27:13,661 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:27:13,662 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:27:13,662 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:27:13,662 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:27:13,671 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:27:13" (1/1) ... [2024-12-02 15:27:13,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:27:13" (1/1) ... [2024-12-02 15:27:13,687 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:27:13" (1/1) ... [2024-12-02 15:27:13,766 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 15:27:13,766 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:27:13" (1/1) ... [2024-12-02 15:27:13,766 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:27:13" (1/1) ... [2024-12-02 15:27:13,804 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:27:13" (1/1) ... [2024-12-02 15:27:13,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:27:13" (1/1) ... [2024-12-02 15:27:13,818 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:27:13" (1/1) ... [2024-12-02 15:27:13,829 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:27:13" (1/1) ... [2024-12-02 15:27:13,834 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:27:13" (1/1) ... [2024-12-02 15:27:13,847 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:27:13,848 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:27:13,848 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:27:13,848 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:27:13,849 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:27:13" (1/1) ... [2024-12-02 15:27:13,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:27:13,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:27:13,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:27:13,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:27:13,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:27:13,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 15:27:13,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:27:13,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:27:13,963 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:27:13,965 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:27:16,069 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-12-02 15:27:16,069 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:27:16,086 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:27:16,086 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 15:27:16,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:27:16 BoogieIcfgContainer [2024-12-02 15:27:16,087 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:27:16,089 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:27:16,089 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:27:16,093 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:27:16,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:27:12" (1/3) ... [2024-12-02 15:27:16,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344baac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:27:16, skipping insertion in model container [2024-12-02 15:27:16,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:27:13" (2/3) ... [2024-12-02 15:27:16,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344baac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:27:16, skipping insertion in model container [2024-12-02 15:27:16,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:27:16" (3/3) ... [2024-12-02 15:27:16,096 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem16_label02.c [2024-12-02 15:27:16,111 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:27:16,113 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem16_label02.c that has 1 procedures, 396 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 15:27:16,173 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:27:16,184 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;@39195fb1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:27:16,184 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 15:27:16,189 INFO L276 IsEmpty]: Start isEmpty. Operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 0 states have call successors, (0), 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 15:27:16,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-12-02 15:27:16,196 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:27:16,197 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] [2024-12-02 15:27:16,198 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:27:16,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:27:16,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1818267785, now seen corresponding path program 1 times [2024-12-02 15:27:16,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:27:16,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366422442] [2024-12-02 15:27:16,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:27:16,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:27:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:27:16,546 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 15:27:16,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:27:16,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366422442] [2024-12-02 15:27:16,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366422442] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:27:16,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:27:16,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:27:16,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050835895] [2024-12-02 15:27:16,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:27:16,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:27:16,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:27:16,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:27:16,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:27:16,574 INFO L87 Difference]: Start difference. First operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 0 states have call successors, (0), 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 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 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 15:27:18,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:27:18,314 INFO L93 Difference]: Finished difference Result 1137 states and 2118 transitions. [2024-12-02 15:27:18,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:27:18,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-12-02 15:27:18,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:27:18,323 INFO L225 Difference]: With dead ends: 1137 [2024-12-02 15:27:18,323 INFO L226 Difference]: Without dead ends: 662 [2024-12-02 15:27:18,326 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 15:27:18,327 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 323 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 15:27:18,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 114 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 15:27:18,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-12-02 15:27:18,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2024-12-02 15:27:18,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.7004538577912254) internal successors, (1124), 661 states have internal predecessors, (1124), 0 states have call successors, (0), 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 15:27:18,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1124 transitions. [2024-12-02 15:27:18,369 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1124 transitions. Word has length 61 [2024-12-02 15:27:18,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:27:18,369 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 1124 transitions. [2024-12-02 15:27:18,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 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 15:27:18,369 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1124 transitions. [2024-12-02 15:27:18,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 15:27:18,371 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:27:18,371 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 15:27:18,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 15:27:18,372 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:27:18,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:27:18,372 INFO L85 PathProgramCache]: Analyzing trace with hash 804089513, now seen corresponding path program 1 times [2024-12-02 15:27:18,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:27:18,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280077398] [2024-12-02 15:27:18,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:27:18,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:27:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:27:18,562 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:27:18,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:27:18,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280077398] [2024-12-02 15:27:18,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280077398] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:27:18,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:27:18,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:27:18,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501388334] [2024-12-02 15:27:18,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:27:18,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:27:18,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:27:18,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:27:18,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:27:18,565 INFO L87 Difference]: Start difference. First operand 662 states and 1124 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 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 15:27:19,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:27:19,897 INFO L93 Difference]: Finished difference Result 1980 states and 3367 transitions. [2024-12-02 15:27:19,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:27:19,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-12-02 15:27:19,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:27:19,901 INFO L225 Difference]: With dead ends: 1980 [2024-12-02 15:27:19,901 INFO L226 Difference]: Without dead ends: 1320 [2024-12-02 15:27:19,903 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 15:27:19,904 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 343 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:27:19,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 77 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 15:27:19,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2024-12-02 15:27:19,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2024-12-02 15:27:19,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 1.620166793025019) internal successors, (2137), 1319 states have internal predecessors, (2137), 0 states have call successors, (0), 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 15:27:19,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 2137 transitions. [2024-12-02 15:27:19,950 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 2137 transitions. Word has length 127 [2024-12-02 15:27:19,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:27:19,950 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 2137 transitions. [2024-12-02 15:27:19,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 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 15:27:19,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 2137 transitions. [2024-12-02 15:27:19,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 15:27:19,954 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:27:19,954 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 15:27:19,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 15:27:19,955 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:27:19,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:27:19,955 INFO L85 PathProgramCache]: Analyzing trace with hash 601628073, now seen corresponding path program 1 times [2024-12-02 15:27:19,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:27:19,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132685326] [2024-12-02 15:27:19,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:27:19,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:27:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:27:20,125 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:27:20,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:27:20,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132685326] [2024-12-02 15:27:20,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132685326] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:27:20,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:27:20,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:27:20,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018435421] [2024-12-02 15:27:20,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:27:20,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:27:20,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:27:20,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:27:20,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:27:20,128 INFO L87 Difference]: Start difference. First operand 1320 states and 2137 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:27:21,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:27:21,450 INFO L93 Difference]: Finished difference Result 3296 states and 5285 transitions. [2024-12-02 15:27:21,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:27:21,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2024-12-02 15:27:21,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:27:21,459 INFO L225 Difference]: With dead ends: 3296 [2024-12-02 15:27:21,459 INFO L226 Difference]: Without dead ends: 1978 [2024-12-02 15:27:21,460 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 15:27:21,461 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 381 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:27:21,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 155 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 15:27:21,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2024-12-02 15:27:21,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1978. [2024-12-02 15:27:21,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1978 states, 1977 states have (on average 1.3323216995447649) internal successors, (2634), 1977 states have internal predecessors, (2634), 0 states have call successors, (0), 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 15:27:21,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2634 transitions. [2024-12-02 15:27:21,510 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2634 transitions. Word has length 128 [2024-12-02 15:27:21,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:27:21,511 INFO L471 AbstractCegarLoop]: Abstraction has 1978 states and 2634 transitions. [2024-12-02 15:27:21,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:27:21,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2634 transitions. [2024-12-02 15:27:21,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-12-02 15:27:21,514 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:27:21,515 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:27:21,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 15:27:21,515 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:27:21,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:27:21,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1357591119, now seen corresponding path program 1 times [2024-12-02 15:27:21,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:27:21,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596784084] [2024-12-02 15:27:21,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:27:21,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:27:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:27:21,812 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:27:21,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:27:21,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596784084] [2024-12-02 15:27:21,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596784084] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:27:21,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:27:21,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:27:21,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189217340] [2024-12-02 15:27:21,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:27:21,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:27:21,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:27:21,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:27:21,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:27:21,814 INFO L87 Difference]: Start difference. First operand 1978 states and 2634 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 2 states have internal predecessors, (220), 0 states have call successors, (0), 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 15:27:23,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:27:23,127 INFO L93 Difference]: Finished difference Result 5928 states and 7897 transitions. [2024-12-02 15:27:23,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:27:23,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 2 states have internal predecessors, (220), 0 states have call successors, (0), 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 220 [2024-12-02 15:27:23,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:27:23,141 INFO L225 Difference]: With dead ends: 5928 [2024-12-02 15:27:23,141 INFO L226 Difference]: Without dead ends: 3952 [2024-12-02 15:27:23,144 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 15:27:23,145 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 183 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:27:23,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 257 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 15:27:23,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2024-12-02 15:27:23,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3952. [2024-12-02 15:27:23,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3952 states, 3951 states have (on average 1.2171602126044039) internal successors, (4809), 3951 states have internal predecessors, (4809), 0 states have call successors, (0), 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 15:27:23,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3952 states to 3952 states and 4809 transitions. [2024-12-02 15:27:23,250 INFO L78 Accepts]: Start accepts. Automaton has 3952 states and 4809 transitions. Word has length 220 [2024-12-02 15:27:23,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:27:23,251 INFO L471 AbstractCegarLoop]: Abstraction has 3952 states and 4809 transitions. [2024-12-02 15:27:23,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 2 states have internal predecessors, (220), 0 states have call successors, (0), 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 15:27:23,251 INFO L276 IsEmpty]: Start isEmpty. Operand 3952 states and 4809 transitions. [2024-12-02 15:27:23,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-12-02 15:27:23,257 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:27:23,257 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:27:23,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 15:27:23,257 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:27:23,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:27:23,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1544183199, now seen corresponding path program 1 times [2024-12-02 15:27:23,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:27:23,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89274923] [2024-12-02 15:27:23,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:27:23,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:27:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:27:23,715 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:27:23,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:27:23,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89274923] [2024-12-02 15:27:23,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89274923] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:27:23,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244882390] [2024-12-02 15:27:23,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:27:23,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:27:23,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:27:23,718 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:27:23,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 15:27:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:27:23,859 INFO L256 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 15:27:23,867 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:27:24,304 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-12-02 15:27:24,305 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:27:24,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244882390] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:27:24,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:27:24,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-12-02 15:27:24,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650575333] [2024-12-02 15:27:24,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:27:24,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:27:24,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:27:24,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:27:24,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:27:24,307 INFO L87 Difference]: Start difference. First operand 3952 states and 4809 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 2 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 15:27:25,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:27:25,296 INFO L93 Difference]: Finished difference Result 5270 states and 6254 transitions. [2024-12-02 15:27:25,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:27:25,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 2 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 304 [2024-12-02 15:27:25,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:27:25,304 INFO L225 Difference]: With dead ends: 5270 [2024-12-02 15:27:25,305 INFO L226 Difference]: Without dead ends: 5268 [2024-12-02 15:27:25,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:27:25,306 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 109 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:27:25,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 158 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 15:27:25,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5268 states. [2024-12-02 15:27:25,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5268 to 4610. [2024-12-02 15:27:25,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4610 states, 4609 states have (on average 1.2013451941852897) internal successors, (5537), 4609 states have internal predecessors, (5537), 0 states have call successors, (0), 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 15:27:25,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4610 states to 4610 states and 5537 transitions. [2024-12-02 15:27:25,394 INFO L78 Accepts]: Start accepts. Automaton has 4610 states and 5537 transitions. Word has length 304 [2024-12-02 15:27:25,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:27:25,395 INFO L471 AbstractCegarLoop]: Abstraction has 4610 states and 5537 transitions. [2024-12-02 15:27:25,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 2 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 15:27:25,395 INFO L276 IsEmpty]: Start isEmpty. Operand 4610 states and 5537 transitions. [2024-12-02 15:27:25,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-12-02 15:27:25,402 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:27:25,403 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:27:25,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 15:27:25,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:27:25,604 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:27:25,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:27:25,604 INFO L85 PathProgramCache]: Analyzing trace with hash -2079847568, now seen corresponding path program 1 times [2024-12-02 15:27:25,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:27:25,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811129510] [2024-12-02 15:27:25,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:27:25,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:27:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:27:26,362 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-12-02 15:27:26,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:27:26,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811129510] [2024-12-02 15:27:26,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811129510] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:27:26,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:27:26,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:27:26,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811868157] [2024-12-02 15:27:26,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:27:26,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:27:26,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:27:26,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:27:26,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:27:26,365 INFO L87 Difference]: Start difference. First operand 4610 states and 5537 transitions. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 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 15:27:27,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:27:27,605 INFO L93 Difference]: Finished difference Result 9547 states and 11413 transitions. [2024-12-02 15:27:27,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:27:27,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 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 413 [2024-12-02 15:27:27,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:27:27,617 INFO L225 Difference]: With dead ends: 9547 [2024-12-02 15:27:27,617 INFO L226 Difference]: Without dead ends: 4939 [2024-12-02 15:27:27,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:27:27,622 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 127 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:27:27,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 322 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 15:27:27,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4939 states. [2024-12-02 15:27:27,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4939 to 4939. [2024-12-02 15:27:27,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4939 states, 4938 states have (on average 1.1891454029971649) internal successors, (5872), 4938 states have internal predecessors, (5872), 0 states have call successors, (0), 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 15:27:27,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4939 states to 4939 states and 5872 transitions. [2024-12-02 15:27:27,715 INFO L78 Accepts]: Start accepts. Automaton has 4939 states and 5872 transitions. Word has length 413 [2024-12-02 15:27:27,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:27:27,715 INFO L471 AbstractCegarLoop]: Abstraction has 4939 states and 5872 transitions. [2024-12-02 15:27:27,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 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 15:27:27,716 INFO L276 IsEmpty]: Start isEmpty. Operand 4939 states and 5872 transitions. [2024-12-02 15:27:27,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2024-12-02 15:27:27,726 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:27:27,727 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:27:27,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 15:27:27,727 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:27:27,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:27:27,728 INFO L85 PathProgramCache]: Analyzing trace with hash -832462339, now seen corresponding path program 1 times [2024-12-02 15:27:27,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:27:27,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399424113] [2024-12-02 15:27:27,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:27:27,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:27:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:27:28,523 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-12-02 15:27:28,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:27:28,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399424113] [2024-12-02 15:27:28,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399424113] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:27:28,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957511670] [2024-12-02 15:27:28,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:27:28,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:27:28,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:27:28,525 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:27:28,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 15:27:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:27:28,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:27:28,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:27:29,256 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-12-02 15:27:29,256 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:27:33,480 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-12-02 15:27:33,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957511670] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:27:33,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:27:33,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-12-02 15:27:33,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764270914] [2024-12-02 15:27:33,481 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:27:33,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 15:27:33,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:27:33,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 15:27:33,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:27:33,483 INFO L87 Difference]: Start difference. First operand 4939 states and 5872 transitions. Second operand has 8 states, 8 states have (on average 111.5) internal successors, (892), 7 states have internal predecessors, (892), 0 states have call successors, (0), 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 15:27:38,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:27:38,629 INFO L93 Difference]: Finished difference Result 16785 states and 20176 transitions. [2024-12-02 15:27:38,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:27:38,630 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 111.5) internal successors, (892), 7 states have internal predecessors, (892), 0 states have call successors, (0), 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 475 [2024-12-02 15:27:38,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:27:38,652 INFO L225 Difference]: With dead ends: 16785 [2024-12-02 15:27:38,652 INFO L226 Difference]: Without dead ends: 12177 [2024-12-02 15:27:38,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 954 GetRequests, 945 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:27:38,655 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 1270 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 4183 mSolverCounterSat, 1582 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 5765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1582 IncrementalHoareTripleChecker+Valid, 4183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:27:38,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 42 Invalid, 5765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1582 Valid, 4183 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-12-02 15:27:38,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12177 states. [2024-12-02 15:27:38,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12177 to 10861. [2024-12-02 15:27:38,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10861 states, 10860 states have (on average 1.1918968692449357) internal successors, (12944), 10860 states have internal predecessors, (12944), 0 states have call successors, (0), 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 15:27:38,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10861 states to 10861 states and 12944 transitions. [2024-12-02 15:27:38,790 INFO L78 Accepts]: Start accepts. Automaton has 10861 states and 12944 transitions. Word has length 475 [2024-12-02 15:27:38,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:27:38,791 INFO L471 AbstractCegarLoop]: Abstraction has 10861 states and 12944 transitions. [2024-12-02 15:27:38,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 111.5) internal successors, (892), 7 states have internal predecessors, (892), 0 states have call successors, (0), 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 15:27:38,791 INFO L276 IsEmpty]: Start isEmpty. Operand 10861 states and 12944 transitions. [2024-12-02 15:27:38,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2024-12-02 15:27:38,800 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:27:38,800 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:27:38,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 15:27:39,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:27:39,001 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:27:39,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:27:39,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1917555893, now seen corresponding path program 1 times [2024-12-02 15:27:39,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:27:39,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735141468] [2024-12-02 15:27:39,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:27:39,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:27:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:27:39,229 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-12-02 15:27:39,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:27:39,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735141468] [2024-12-02 15:27:39,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735141468] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:27:39,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:27:39,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:27:39,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305698307] [2024-12-02 15:27:39,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:27:39,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:27:39,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:27:39,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:27:39,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:27:39,231 INFO L87 Difference]: Start difference. First operand 10861 states and 12944 transitions. Second operand has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 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 15:27:40,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:27:40,419 INFO L93 Difference]: Finished difference Result 25010 states and 30301 transitions. [2024-12-02 15:27:40,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:27:40,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 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 562 [2024-12-02 15:27:40,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:27:40,441 INFO L225 Difference]: With dead ends: 25010 [2024-12-02 15:27:40,441 INFO L226 Difference]: Without dead ends: 14809 [2024-12-02 15:27:40,447 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 15:27:40,448 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 183 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:27:40,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 245 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 15:27:40,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14809 states. [2024-12-02 15:27:40,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14809 to 14809. [2024-12-02 15:27:40,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14809 states, 14808 states have (on average 1.1782144786601836) internal successors, (17447), 14808 states have internal predecessors, (17447), 0 states have call successors, (0), 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 15:27:40,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14809 states to 14809 states and 17447 transitions. [2024-12-02 15:27:40,586 INFO L78 Accepts]: Start accepts. Automaton has 14809 states and 17447 transitions. Word has length 562 [2024-12-02 15:27:40,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:27:40,587 INFO L471 AbstractCegarLoop]: Abstraction has 14809 states and 17447 transitions. [2024-12-02 15:27:40,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 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 15:27:40,587 INFO L276 IsEmpty]: Start isEmpty. Operand 14809 states and 17447 transitions. [2024-12-02 15:27:40,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2024-12-02 15:27:40,592 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:27:40,593 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:27:40,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 15:27:40,593 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:27:40,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:27:40,593 INFO L85 PathProgramCache]: Analyzing trace with hash 788273314, now seen corresponding path program 1 times [2024-12-02 15:27:40,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:27:40,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843346105] [2024-12-02 15:27:40,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:27:40,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:27:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:27:41,076 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 472 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-12-02 15:27:41,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:27:41,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843346105] [2024-12-02 15:27:41,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843346105] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:27:41,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:27:41,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:27:41,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443688060] [2024-12-02 15:27:41,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:27:41,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:27:41,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:27:41,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:27:41,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:27:41,078 INFO L87 Difference]: Start difference. First operand 14809 states and 17447 transitions. Second operand has 7 states, 7 states have (on average 56.57142857142857) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 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 15:27:42,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:27:42,490 INFO L93 Difference]: Finished difference Result 28363 states and 33579 transitions. [2024-12-02 15:27:42,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:27:42,491 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 56.57142857142857) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 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 566 [2024-12-02 15:27:42,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:27:42,514 INFO L225 Difference]: With dead ends: 28363 [2024-12-02 15:27:42,514 INFO L226 Difference]: Without dead ends: 13906 [2024-12-02 15:27:42,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:27:42,526 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 292 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 2177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:27:42,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 287 Invalid, 2177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1986 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 15:27:42,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13906 states. [2024-12-02 15:27:42,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13906 to 12566. [2024-12-02 15:27:42,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12566 states, 12565 states have (on average 1.0826104257859133) internal successors, (13603), 12565 states have internal predecessors, (13603), 0 states have call successors, (0), 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 15:27:42,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12566 states to 12566 states and 13603 transitions. [2024-12-02 15:27:42,677 INFO L78 Accepts]: Start accepts. Automaton has 12566 states and 13603 transitions. Word has length 566 [2024-12-02 15:27:42,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:27:42,678 INFO L471 AbstractCegarLoop]: Abstraction has 12566 states and 13603 transitions. [2024-12-02 15:27:42,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 56.57142857142857) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 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 15:27:42,678 INFO L276 IsEmpty]: Start isEmpty. Operand 12566 states and 13603 transitions. [2024-12-02 15:27:42,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 667 [2024-12-02 15:27:42,682 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:27:42,683 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:27:42,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 15:27:42,683 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:27:42,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:27:42,683 INFO L85 PathProgramCache]: Analyzing trace with hash -2040208118, now seen corresponding path program 1 times [2024-12-02 15:27:42,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:27:42,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554860279] [2024-12-02 15:27:42,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:27:42,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:27:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:27:42,974 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 739 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-12-02 15:27:42,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:27:42,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554860279] [2024-12-02 15:27:42,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554860279] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:27:42,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:27:42,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:27:42,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974874088] [2024-12-02 15:27:42,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:27:42,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:27:42,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:27:42,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:27:42,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:27:42,977 INFO L87 Difference]: Start difference. First operand 12566 states and 13603 transitions. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 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 15:27:43,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:27:43,978 INFO L93 Difference]: Finished difference Result 27762 states and 30174 transitions. [2024-12-02 15:27:43,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:27:43,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 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 666 [2024-12-02 15:27:43,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:27:43,993 INFO L225 Difference]: With dead ends: 27762 [2024-12-02 15:27:43,993 INFO L226 Difference]: Without dead ends: 15856 [2024-12-02 15:27:44,000 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 15:27:44,001 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 194 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 15:27:44,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 41 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 15:27:44,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15856 states. [2024-12-02 15:27:44,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15856 to 15198. [2024-12-02 15:27:44,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15198 states, 15197 states have (on average 1.08475356978351) internal successors, (16485), 15197 states have internal predecessors, (16485), 0 states have call successors, (0), 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 15:27:44,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15198 states to 15198 states and 16485 transitions. [2024-12-02 15:27:44,132 INFO L78 Accepts]: Start accepts. Automaton has 15198 states and 16485 transitions. Word has length 666 [2024-12-02 15:27:44,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:27:44,133 INFO L471 AbstractCegarLoop]: Abstraction has 15198 states and 16485 transitions. [2024-12-02 15:27:44,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 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 15:27:44,133 INFO L276 IsEmpty]: Start isEmpty. Operand 15198 states and 16485 transitions. [2024-12-02 15:27:44,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 721 [2024-12-02 15:27:44,139 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:27:44,139 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 15:27:44,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 15:27:44,139 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:27:44,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:27:44,140 INFO L85 PathProgramCache]: Analyzing trace with hash -2128512303, now seen corresponding path program 1 times [2024-12-02 15:27:44,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:27:44,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477451844] [2024-12-02 15:27:44,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:27:44,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:27:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:27:44,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1028 backedges. 803 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-12-02 15:27:44,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:27:44,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477451844] [2024-12-02 15:27:44,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477451844] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:27:44,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:27:44,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:27:44,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256543847] [2024-12-02 15:27:44,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:27:44,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:27:44,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:27:44,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:27:44,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:27:44,715 INFO L87 Difference]: Start difference. First operand 15198 states and 16485 transitions. Second operand has 4 states, 4 states have (on average 139.0) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 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 15:27:45,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:27:45,629 INFO L93 Difference]: Finished difference Result 29736 states and 32301 transitions. [2024-12-02 15:27:45,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:27:45,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 139.0) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 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 720 [2024-12-02 15:27:45,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:27:45,639 INFO L225 Difference]: With dead ends: 29736 [2024-12-02 15:27:45,639 INFO L226 Difference]: Without dead ends: 15198 [2024-12-02 15:27:45,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:27:45,648 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 173 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 15:27:45,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 132 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 15:27:45,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15198 states. [2024-12-02 15:27:45,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15198 to 15198. [2024-12-02 15:27:45,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15198 states, 15197 states have (on average 1.0845561624004738) internal successors, (16482), 15197 states have internal predecessors, (16482), 0 states have call successors, (0), 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 15:27:45,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15198 states to 15198 states and 16482 transitions. [2024-12-02 15:27:45,798 INFO L78 Accepts]: Start accepts. Automaton has 15198 states and 16482 transitions. Word has length 720 [2024-12-02 15:27:45,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:27:45,799 INFO L471 AbstractCegarLoop]: Abstraction has 15198 states and 16482 transitions. [2024-12-02 15:27:45,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 139.0) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 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 15:27:45,800 INFO L276 IsEmpty]: Start isEmpty. Operand 15198 states and 16482 transitions. [2024-12-02 15:27:45,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2024-12-02 15:27:45,808 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:27:45,808 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 15:27:45,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 15:27:45,808 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:27:45,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:27:45,809 INFO L85 PathProgramCache]: Analyzing trace with hash 479289470, now seen corresponding path program 1 times [2024-12-02 15:27:45,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:27:45,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866909690] [2024-12-02 15:27:45,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:27:45,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:27:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:27:46,666 INFO L134 CoverageAnalysis]: Checked inductivity of 949 backedges. 544 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2024-12-02 15:27:46,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:27:46,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866909690] [2024-12-02 15:27:46,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866909690] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:27:46,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:27:46,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:27:46,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708997199] [2024-12-02 15:27:46,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:27:46,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:27:46,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:27:46,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:27:46,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:27:46,668 INFO L87 Difference]: Start difference. First operand 15198 states and 16482 transitions. Second operand has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 0 states have call successors, (0), 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 15:27:47,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:27:47,640 INFO L93 Difference]: Finished difference Result 15588 states and 16879 transitions. [2024-12-02 15:27:47,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:27:47,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 0 states have call successors, (0), 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 722 [2024-12-02 15:27:47,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:27:47,649 INFO L225 Difference]: With dead ends: 15588 [2024-12-02 15:27:47,649 INFO L226 Difference]: Without dead ends: 15527 [2024-12-02 15:27:47,651 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:27:47,652 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 505 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 15:27:47,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 17 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 15:27:47,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15527 states. [2024-12-02 15:27:47,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15527 to 15198. [2024-12-02 15:27:47,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15198 states, 15197 states have (on average 1.0839639402513654) internal successors, (16473), 15197 states have internal predecessors, (16473), 0 states have call successors, (0), 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 15:27:47,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15198 states to 15198 states and 16473 transitions. [2024-12-02 15:27:47,769 INFO L78 Accepts]: Start accepts. Automaton has 15198 states and 16473 transitions. Word has length 722 [2024-12-02 15:27:47,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:27:47,769 INFO L471 AbstractCegarLoop]: Abstraction has 15198 states and 16473 transitions. [2024-12-02 15:27:47,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 0 states have call successors, (0), 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 15:27:47,769 INFO L276 IsEmpty]: Start isEmpty. Operand 15198 states and 16473 transitions. [2024-12-02 15:27:47,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2024-12-02 15:27:47,776 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:27:47,777 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:27:47,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 15:27:47,777 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:27:47,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:27:47,777 INFO L85 PathProgramCache]: Analyzing trace with hash -752870972, now seen corresponding path program 1 times [2024-12-02 15:27:47,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:27:47,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462693435] [2024-12-02 15:27:47,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:27:47,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:27:47,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:27:48,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1063 backedges. 593 proven. 228 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-12-02 15:27:48,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:27:48,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462693435] [2024-12-02 15:27:48,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462693435] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:27:48,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646664509] [2024-12-02 15:27:48,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:27:48,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:27:48,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:27:48,460 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:27:48,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 15:27:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:27:48,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 15:27:48,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:27:50,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1063 backedges. 637 proven. 201 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-12-02 15:27:50,903 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:27:54,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1063 backedges. 637 proven. 201 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-12-02 15:27:54,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646664509] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:27:54,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:27:54,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 9 [2024-12-02 15:27:54,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685901198] [2024-12-02 15:27:54,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:27:54,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:27:54,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:27:54,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:27:54,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:27:54,638 INFO L87 Difference]: Start difference. First operand 15198 states and 16473 transitions. Second operand has 10 states, 10 states have (on average 160.5) internal successors, (1605), 9 states have internal predecessors, (1605), 0 states have call successors, (0), 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 15:27:58,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:27:58,895 INFO L93 Difference]: Finished difference Result 31052 states and 33662 transitions. [2024-12-02 15:27:58,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 15:27:58,896 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 160.5) internal successors, (1605), 9 states have internal predecessors, (1605), 0 states have call successors, (0), 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 810 [2024-12-02 15:27:58,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:27:58,905 INFO L225 Difference]: With dead ends: 31052 [2024-12-02 15:27:58,905 INFO L226 Difference]: Without dead ends: 16514 [2024-12-02 15:27:58,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1629 GetRequests, 1615 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-12-02 15:27:58,910 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 1627 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 7535 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 7804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 7535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:27:58,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1627 Valid, 95 Invalid, 7804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 7535 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-12-02 15:27:58,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16514 states. [2024-12-02 15:27:59,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16514 to 14869. [2024-12-02 15:27:59,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14869 states, 14868 states have (on average 1.0722356739305892) internal successors, (15942), 14868 states have internal predecessors, (15942), 0 states have call successors, (0), 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 15:27:59,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14869 states to 14869 states and 15942 transitions. [2024-12-02 15:27:59,034 INFO L78 Accepts]: Start accepts. Automaton has 14869 states and 15942 transitions. Word has length 810 [2024-12-02 15:27:59,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:27:59,034 INFO L471 AbstractCegarLoop]: Abstraction has 14869 states and 15942 transitions. [2024-12-02 15:27:59,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 160.5) internal successors, (1605), 9 states have internal predecessors, (1605), 0 states have call successors, (0), 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 15:27:59,034 INFO L276 IsEmpty]: Start isEmpty. Operand 14869 states and 15942 transitions. [2024-12-02 15:27:59,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 870 [2024-12-02 15:27:59,041 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:27:59,041 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 15:27:59,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 15:27:59,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 15:27:59,242 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:27:59,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:27:59,242 INFO L85 PathProgramCache]: Analyzing trace with hash -38982213, now seen corresponding path program 1 times [2024-12-02 15:27:59,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:27:59,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136360339] [2024-12-02 15:27:59,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:27:59,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:27:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:27:59,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 941 proven. 100 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-12-02 15:27:59,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:27:59,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136360339] [2024-12-02 15:27:59,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136360339] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:27:59,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293166500] [2024-12-02 15:27:59,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:27:59,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:27:59,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:27:59,947 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:27:59,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 15:28:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:28:00,212 INFO L256 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 15:28:00,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:28:02,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 249 proven. 851 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-12-02 15:28:02,195 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:28:04,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 308 proven. 792 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-12-02 15:28:04,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293166500] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:28:04,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:28:04,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 12 [2024-12-02 15:28:04,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561464456] [2024-12-02 15:28:04,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:28:04,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 15:28:04,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:28:04,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 15:28:04,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:28:04,361 INFO L87 Difference]: Start difference. First operand 14869 states and 15942 transitions. Second operand has 13 states, 13 states have (on average 118.0) internal successors, (1534), 12 states have internal predecessors, (1534), 0 states have call successors, (0), 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 15:28:11,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:28:11,823 INFO L93 Difference]: Finished difference Result 38814 states and 41504 transitions. [2024-12-02 15:28:11,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 15:28:11,824 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 118.0) internal successors, (1534), 12 states have internal predecessors, (1534), 0 states have call successors, (0), 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 869 [2024-12-02 15:28:11,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:28:11,838 INFO L225 Difference]: With dead ends: 38814 [2024-12-02 15:28:11,838 INFO L226 Difference]: Without dead ends: 24486 [2024-12-02 15:28:11,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1752 GetRequests, 1729 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=195, Invalid=405, Unknown=0, NotChecked=0, Total=600 [2024-12-02 15:28:11,845 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 3880 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 12347 mSolverCounterSat, 713 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3880 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 13060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 713 IncrementalHoareTripleChecker+Valid, 12347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:28:11,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3880 Valid, 139 Invalid, 13060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [713 Valid, 12347 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-12-02 15:28:11,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24486 states. [2024-12-02 15:28:12,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24486 to 19475. [2024-12-02 15:28:12,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19475 states, 19474 states have (on average 1.0648557050426208) internal successors, (20737), 19474 states have internal predecessors, (20737), 0 states have call successors, (0), 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 15:28:12,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19475 states to 19475 states and 20737 transitions. [2024-12-02 15:28:12,036 INFO L78 Accepts]: Start accepts. Automaton has 19475 states and 20737 transitions. Word has length 869 [2024-12-02 15:28:12,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:28:12,036 INFO L471 AbstractCegarLoop]: Abstraction has 19475 states and 20737 transitions. [2024-12-02 15:28:12,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 118.0) internal successors, (1534), 12 states have internal predecessors, (1534), 0 states have call successors, (0), 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 15:28:12,036 INFO L276 IsEmpty]: Start isEmpty. Operand 19475 states and 20737 transitions. [2024-12-02 15:28:12,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 992 [2024-12-02 15:28:12,046 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:28:12,046 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:28:12,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 15:28:12,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 15:28:12,247 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:28:12,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:28:12,247 INFO L85 PathProgramCache]: Analyzing trace with hash -845445616, now seen corresponding path program 1 times [2024-12-02 15:28:12,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:28:12,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939500132] [2024-12-02 15:28:12,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:28:12,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:28:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:28:12,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2148 backedges. 1327 proven. 0 refuted. 0 times theorem prover too weak. 821 trivial. 0 not checked. [2024-12-02 15:28:12,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:28:12,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939500132] [2024-12-02 15:28:12,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939500132] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:28:12,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:28:12,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:28:12,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132798339] [2024-12-02 15:28:12,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:28:12,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:28:12,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:28:12,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:28:12,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:28:12,679 INFO L87 Difference]: Start difference. First operand 19475 states and 20737 transitions. Second operand has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 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 15:28:13,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:28:13,517 INFO L93 Difference]: Finished difference Result 42238 states and 45078 transitions. [2024-12-02 15:28:13,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:28:13,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 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 991 [2024-12-02 15:28:13,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:28:13,532 INFO L225 Difference]: With dead ends: 42238 [2024-12-02 15:28:13,532 INFO L226 Difference]: Without dead ends: 23094 [2024-12-02 15:28:13,543 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 15:28:13,544 INFO L435 NwaCegarLoop]: 441 mSDtfsCounter, 220 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 15:28:13,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 447 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 15:28:13,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23094 states. [2024-12-02 15:28:13,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23094 to 21778. [2024-12-02 15:28:13,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21778 states, 21777 states have (on average 1.0590990494558479) internal successors, (23064), 21777 states have internal predecessors, (23064), 0 states have call successors, (0), 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 15:28:13,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21778 states to 21778 states and 23064 transitions. [2024-12-02 15:28:13,841 INFO L78 Accepts]: Start accepts. Automaton has 21778 states and 23064 transitions. Word has length 991 [2024-12-02 15:28:13,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:28:13,841 INFO L471 AbstractCegarLoop]: Abstraction has 21778 states and 23064 transitions. [2024-12-02 15:28:13,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 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 15:28:13,842 INFO L276 IsEmpty]: Start isEmpty. Operand 21778 states and 23064 transitions. [2024-12-02 15:28:13,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1009 [2024-12-02 15:28:13,852 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:28:13,852 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:28:13,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 15:28:13,852 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:28:13,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:28:13,853 INFO L85 PathProgramCache]: Analyzing trace with hash -2010910591, now seen corresponding path program 1 times [2024-12-02 15:28:13,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:28:13,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784711431] [2024-12-02 15:28:13,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:28:13,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:28:13,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:28:14,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2237 backedges. 975 proven. 0 refuted. 0 times theorem prover too weak. 1262 trivial. 0 not checked. [2024-12-02 15:28:14,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:28:14,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784711431] [2024-12-02 15:28:14,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784711431] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:28:14,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:28:14,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:28:14,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540119441] [2024-12-02 15:28:14,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:28:14,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:28:14,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:28:14,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:28:14,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:28:14,354 INFO L87 Difference]: Start difference. First operand 21778 states and 23064 transitions. Second operand has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 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 15:28:15,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:28:15,122 INFO L93 Difference]: Finished difference Result 49476 states and 52470 transitions. [2024-12-02 15:28:15,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:28:15,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 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 1008 [2024-12-02 15:28:15,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:28:15,145 INFO L225 Difference]: With dead ends: 49476 [2024-12-02 15:28:15,145 INFO L226 Difference]: Without dead ends: 26384 [2024-12-02 15:28:15,156 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 15:28:15,156 INFO L435 NwaCegarLoop]: 427 mSDtfsCounter, 210 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 15:28:15,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 432 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 15:28:15,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26384 states. [2024-12-02 15:28:15,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26384 to 25397. [2024-12-02 15:28:15,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25397 states, 25396 states have (on average 1.044888958891164) internal successors, (26536), 25396 states have internal predecessors, (26536), 0 states have call successors, (0), 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 15:28:15,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25397 states to 25397 states and 26536 transitions. [2024-12-02 15:28:15,381 INFO L78 Accepts]: Start accepts. Automaton has 25397 states and 26536 transitions. Word has length 1008 [2024-12-02 15:28:15,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:28:15,381 INFO L471 AbstractCegarLoop]: Abstraction has 25397 states and 26536 transitions. [2024-12-02 15:28:15,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 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 15:28:15,382 INFO L276 IsEmpty]: Start isEmpty. Operand 25397 states and 26536 transitions. [2024-12-02 15:28:15,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1092 [2024-12-02 15:28:15,393 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:28:15,393 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:28:15,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 15:28:15,394 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:28:15,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:28:15,394 INFO L85 PathProgramCache]: Analyzing trace with hash 541362834, now seen corresponding path program 1 times [2024-12-02 15:28:15,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:28:15,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34993216] [2024-12-02 15:28:15,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:28:15,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:28:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:28:16,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2401 backedges. 353 proven. 0 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2024-12-02 15:28:16,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:28:16,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34993216] [2024-12-02 15:28:16,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34993216] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:28:16,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:28:16,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:28:16,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482573717] [2024-12-02 15:28:16,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:28:16,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:28:16,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:28:16,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:28:16,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:28:16,267 INFO L87 Difference]: Start difference. First operand 25397 states and 26536 transitions. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 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 15:28:16,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:28:16,981 INFO L93 Difference]: Finished difference Result 50463 states and 52739 transitions. [2024-12-02 15:28:16,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:28:16,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 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 1091 [2024-12-02 15:28:16,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:28:16,999 INFO L225 Difference]: With dead ends: 50463 [2024-12-02 15:28:16,999 INFO L226 Difference]: Without dead ends: 25068 [2024-12-02 15:28:17,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 15:28:17,009 INFO L435 NwaCegarLoop]: 365 mSDtfsCounter, 279 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 15:28:17,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 371 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 15:28:17,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25068 states. [2024-12-02 15:28:17,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25068 to 23423. [2024-12-02 15:28:17,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23423 states, 23422 states have (on average 1.035351379045342) internal successors, (24250), 23422 states have internal predecessors, (24250), 0 states have call successors, (0), 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 15:28:17,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23423 states to 23423 states and 24250 transitions. [2024-12-02 15:28:17,213 INFO L78 Accepts]: Start accepts. Automaton has 23423 states and 24250 transitions. Word has length 1091 [2024-12-02 15:28:17,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:28:17,213 INFO L471 AbstractCegarLoop]: Abstraction has 23423 states and 24250 transitions. [2024-12-02 15:28:17,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 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 15:28:17,214 INFO L276 IsEmpty]: Start isEmpty. Operand 23423 states and 24250 transitions. [2024-12-02 15:28:17,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1146 [2024-12-02 15:28:17,226 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:28:17,227 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:28:17,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 15:28:17,227 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:28:17,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:28:17,228 INFO L85 PathProgramCache]: Analyzing trace with hash 218918824, now seen corresponding path program 1 times [2024-12-02 15:28:17,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:28:17,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071674459] [2024-12-02 15:28:17,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:28:17,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:28:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:28:18,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2194 backedges. 1105 proven. 0 refuted. 0 times theorem prover too weak. 1089 trivial. 0 not checked. [2024-12-02 15:28:18,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:28:18,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071674459] [2024-12-02 15:28:18,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071674459] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:28:18,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:28:18,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:28:18,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105338373] [2024-12-02 15:28:18,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:28:18,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:28:18,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:28:18,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:28:18,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:28:18,018 INFO L87 Difference]: Start difference. First operand 23423 states and 24250 transitions. Second operand has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 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 15:28:18,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:28:18,780 INFO L93 Difference]: Finished difference Result 46515 states and 48167 transitions. [2024-12-02 15:28:18,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:28:18,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 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 1145 [2024-12-02 15:28:18,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:28:18,794 INFO L225 Difference]: With dead ends: 46515 [2024-12-02 15:28:18,795 INFO L226 Difference]: Without dead ends: 23423 [2024-12-02 15:28:18,805 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 15:28:18,805 INFO L435 NwaCegarLoop]: 425 mSDtfsCounter, 61 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 15:28:18,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 431 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 15:28:18,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23423 states. [2024-12-02 15:28:18,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23423 to 22107. [2024-12-02 15:28:18,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22107 states, 22106 states have (on average 1.0294942549534063) internal successors, (22758), 22106 states have internal predecessors, (22758), 0 states have call successors, (0), 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 15:28:18,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22107 states to 22107 states and 22758 transitions. [2024-12-02 15:28:18,988 INFO L78 Accepts]: Start accepts. Automaton has 22107 states and 22758 transitions. Word has length 1145 [2024-12-02 15:28:18,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:28:18,989 INFO L471 AbstractCegarLoop]: Abstraction has 22107 states and 22758 transitions. [2024-12-02 15:28:18,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 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 15:28:18,989 INFO L276 IsEmpty]: Start isEmpty. Operand 22107 states and 22758 transitions. [2024-12-02 15:28:19,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1206 [2024-12-02 15:28:19,001 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:28:19,001 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:28:19,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 15:28:19,002 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:28:19,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:28:19,003 INFO L85 PathProgramCache]: Analyzing trace with hash 431588237, now seen corresponding path program 1 times [2024-12-02 15:28:19,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:28:19,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391481656] [2024-12-02 15:28:19,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:28:19,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:28:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:28:19,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2165 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 1871 trivial. 0 not checked. [2024-12-02 15:28:19,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:28:19,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391481656] [2024-12-02 15:28:19,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391481656] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:28:19,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:28:19,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:28:19,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549649391] [2024-12-02 15:28:19,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:28:19,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:28:19,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:28:19,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:28:19,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:28:19,564 INFO L87 Difference]: Start difference. First operand 22107 states and 22758 transitions. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 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 15:28:20,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:28:20,235 INFO L93 Difference]: Finished difference Result 43883 states and 45183 transitions. [2024-12-02 15:28:20,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:28:20,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 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 1205 [2024-12-02 15:28:20,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:28:20,249 INFO L225 Difference]: With dead ends: 43883 [2024-12-02 15:28:20,249 INFO L226 Difference]: Without dead ends: 22107 [2024-12-02 15:28:20,259 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 15:28:20,259 INFO L435 NwaCegarLoop]: 373 mSDtfsCounter, 306 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 15:28:20,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 379 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 15:28:20,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22107 states. [2024-12-02 15:28:20,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22107 to 21778. [2024-12-02 15:28:20,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21778 states, 21777 states have (on average 1.0264040042246407) internal successors, (22352), 21777 states have internal predecessors, (22352), 0 states have call successors, (0), 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 15:28:20,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21778 states to 21778 states and 22352 transitions. [2024-12-02 15:28:20,481 INFO L78 Accepts]: Start accepts. Automaton has 21778 states and 22352 transitions. Word has length 1205 [2024-12-02 15:28:20,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:28:20,482 INFO L471 AbstractCegarLoop]: Abstraction has 21778 states and 22352 transitions. [2024-12-02 15:28:20,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 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 15:28:20,482 INFO L276 IsEmpty]: Start isEmpty. Operand 21778 states and 22352 transitions. [2024-12-02 15:28:20,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1470 [2024-12-02 15:28:20,499 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:28:20,500 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 15:28:20,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 15:28:20,500 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:28:20,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:28:20,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1428267150, now seen corresponding path program 1 times [2024-12-02 15:28:20,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:28:20,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436089801] [2024-12-02 15:28:20,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:28:20,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:28:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:28:21,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3567 backedges. 412 proven. 0 refuted. 0 times theorem prover too weak. 3155 trivial. 0 not checked. [2024-12-02 15:28:21,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:28:21,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436089801] [2024-12-02 15:28:21,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436089801] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:28:21,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:28:21,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:28:21,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912844976] [2024-12-02 15:28:21,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:28:21,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:28:21,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:28:21,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:28:21,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:28:21,304 INFO L87 Difference]: Start difference. First operand 21778 states and 22352 transitions. Second operand has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 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 15:28:22,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:28:22,568 INFO L93 Difference]: Finished difference Result 45881 states and 47077 transitions. [2024-12-02 15:28:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:28:22,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 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 1469 [2024-12-02 15:28:22,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:28:22,583 INFO L225 Difference]: With dead ends: 45881 [2024-12-02 15:28:22,583 INFO L226 Difference]: Without dead ends: 23423 [2024-12-02 15:28:22,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:28:22,593 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 605 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 1551 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:28:22,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 56 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1551 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 15:28:22,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23423 states. [2024-12-02 15:28:22,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23423 to 21120. [2024-12-02 15:28:22,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21120 states, 21119 states have (on average 1.0257587953975094) internal successors, (21663), 21119 states have internal predecessors, (21663), 0 states have call successors, (0), 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 15:28:22,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21120 states to 21120 states and 21663 transitions. [2024-12-02 15:28:22,769 INFO L78 Accepts]: Start accepts. Automaton has 21120 states and 21663 transitions. Word has length 1469 [2024-12-02 15:28:22,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:28:22,770 INFO L471 AbstractCegarLoop]: Abstraction has 21120 states and 21663 transitions. [2024-12-02 15:28:22,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 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 15:28:22,770 INFO L276 IsEmpty]: Start isEmpty. Operand 21120 states and 21663 transitions. [2024-12-02 15:28:22,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1530 [2024-12-02 15:28:22,789 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:28:22,790 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 15:28:22,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 15:28:22,790 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:28:22,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:28:22,790 INFO L85 PathProgramCache]: Analyzing trace with hash 158822930, now seen corresponding path program 1 times [2024-12-02 15:28:22,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:28:22,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935015316] [2024-12-02 15:28:22,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:28:22,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:28:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:28:23,696 INFO L134 CoverageAnalysis]: Checked inductivity of 5206 backedges. 2562 proven. 0 refuted. 0 times theorem prover too weak. 2644 trivial. 0 not checked. [2024-12-02 15:28:23,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:28:23,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935015316] [2024-12-02 15:28:23,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935015316] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:28:23,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:28:23,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:28:23,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216928865] [2024-12-02 15:28:23,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:28:23,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:28:23,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:28:23,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:28:23,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:28:23,698 INFO L87 Difference]: Start difference. First operand 21120 states and 21663 transitions. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 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 15:28:24,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:28:24,522 INFO L93 Difference]: Finished difference Result 44541 states and 45722 transitions. [2024-12-02 15:28:24,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:28:24,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 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 1529 [2024-12-02 15:28:24,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:28:24,536 INFO L225 Difference]: With dead ends: 44541 [2024-12-02 15:28:24,536 INFO L226 Difference]: Without dead ends: 21778 [2024-12-02 15:28:24,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:28:24,546 INFO L435 NwaCegarLoop]: 412 mSDtfsCounter, 205 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 15:28:24,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 418 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 15:28:24,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21778 states. [2024-12-02 15:28:24,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21778 to 20462. [2024-12-02 15:28:24,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20462 states, 20461 states have (on average 1.0217975661013636) internal successors, (20907), 20461 states have internal predecessors, (20907), 0 states have call successors, (0), 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 15:28:24,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20462 states to 20462 states and 20907 transitions. [2024-12-02 15:28:24,716 INFO L78 Accepts]: Start accepts. Automaton has 20462 states and 20907 transitions. Word has length 1529 [2024-12-02 15:28:24,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:28:24,716 INFO L471 AbstractCegarLoop]: Abstraction has 20462 states and 20907 transitions. [2024-12-02 15:28:24,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 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 15:28:24,717 INFO L276 IsEmpty]: Start isEmpty. Operand 20462 states and 20907 transitions. [2024-12-02 15:28:24,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1557 [2024-12-02 15:28:24,735 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:28:24,735 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 15:28:24,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 15:28:24,735 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:28:24,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:28:24,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1952310525, now seen corresponding path program 1 times [2024-12-02 15:28:24,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:28:24,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091224350] [2024-12-02 15:28:24,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:28:24,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:28:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:28:26,006 INFO L134 CoverageAnalysis]: Checked inductivity of 4281 backedges. 2813 proven. 35 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2024-12-02 15:28:26,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:28:26,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091224350] [2024-12-02 15:28:26,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091224350] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:28:26,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689826768] [2024-12-02 15:28:26,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:28:26,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:28:26,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:28:26,008 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:28:26,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 15:28:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:28:26,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 1797 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 15:28:26,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:28:28,377 INFO L134 CoverageAnalysis]: Checked inductivity of 4281 backedges. 2813 proven. 35 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2024-12-02 15:28:28,377 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:28:31,864 INFO L134 CoverageAnalysis]: Checked inductivity of 4281 backedges. 2526 proven. 322 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2024-12-02 15:28:31,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689826768] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:28:31,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:28:31,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2024-12-02 15:28:31,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407933355] [2024-12-02 15:28:31,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:28:31,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:28:31,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:28:31,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:28:31,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:28:31,869 INFO L87 Difference]: Start difference. First operand 20462 states and 20907 transitions. Second operand has 6 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 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 15:28:33,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:28:33,740 INFO L93 Difference]: Finished difference Result 40922 states and 41817 transitions. [2024-12-02 15:28:33,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:28:33,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 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 1556 [2024-12-02 15:28:33,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:28:33,752 INFO L225 Difference]: With dead ends: 40922 [2024-12-02 15:28:33,752 INFO L226 Difference]: Without dead ends: 20791 [2024-12-02 15:28:33,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3119 GetRequests, 3113 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:28:33,761 INFO L435 NwaCegarLoop]: 416 mSDtfsCounter, 419 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 3042 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 3065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 3042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 15:28:33,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 560 Invalid, 3065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 3042 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 15:28:33,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20791 states. [2024-12-02 15:28:33,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20791 to 20791. [2024-12-02 15:28:33,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20791 states, 20790 states have (on average 1.0213564213564215) internal successors, (21234), 20790 states have internal predecessors, (21234), 0 states have call successors, (0), 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 15:28:33,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20791 states to 20791 states and 21234 transitions. [2024-12-02 15:28:33,928 INFO L78 Accepts]: Start accepts. Automaton has 20791 states and 21234 transitions. Word has length 1556 [2024-12-02 15:28:33,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:28:33,929 INFO L471 AbstractCegarLoop]: Abstraction has 20791 states and 21234 transitions. [2024-12-02 15:28:33,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 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 15:28:33,930 INFO L276 IsEmpty]: Start isEmpty. Operand 20791 states and 21234 transitions. [2024-12-02 15:28:33,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1588 [2024-12-02 15:28:33,948 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:28:33,948 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:28:33,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 15:28:34,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-12-02 15:28:34,149 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:28:34,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:28:34,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1620524572, now seen corresponding path program 1 times [2024-12-02 15:28:34,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:28:34,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86024105] [2024-12-02 15:28:34,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:28:34,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:28:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:28:36,468 INFO L134 CoverageAnalysis]: Checked inductivity of 4312 backedges. 2591 proven. 288 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2024-12-02 15:28:36,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:28:36,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86024105] [2024-12-02 15:28:36,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86024105] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:28:36,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993034825] [2024-12-02 15:28:36,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:28:36,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:28:36,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:28:36,470 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:28:36,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 15:28:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:28:36,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 1828 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 15:28:36,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:28:38,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4312 backedges. 2677 proven. 464 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2024-12-02 15:28:38,507 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:28:40,110 INFO L134 CoverageAnalysis]: Checked inductivity of 4312 backedges. 2677 proven. 464 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2024-12-02 15:28:40,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993034825] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:28:40,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:28:40,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2024-12-02 15:28:40,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455229675] [2024-12-02 15:28:40,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:28:40,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 15:28:40,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:28:40,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 15:28:40,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:28:40,113 INFO L87 Difference]: Start difference. First operand 20791 states and 21234 transitions. Second operand has 13 states, 13 states have (on average 148.53846153846155) internal successors, (1931), 13 states have internal predecessors, (1931), 0 states have call successors, (0), 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 15:28:49,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:28:49,018 INFO L93 Difference]: Finished difference Result 44006 states and 44919 transitions. [2024-12-02 15:28:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 15:28:49,018 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 148.53846153846155) internal successors, (1931), 13 states have internal predecessors, (1931), 0 states have call successors, (0), 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 1587 [2024-12-02 15:28:49,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:28:49,032 INFO L225 Difference]: With dead ends: 44006 [2024-12-02 15:28:49,032 INFO L226 Difference]: Without dead ends: 23487 [2024-12-02 15:28:49,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3202 GetRequests, 3176 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2024-12-02 15:28:49,040 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 2427 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 22128 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2427 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 22338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 22128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:28:49,040 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2427 Valid, 323 Invalid, 22338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 22128 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2024-12-02 15:28:49,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23487 states. [2024-12-02 15:28:49,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23487 to 21449. [2024-12-02 15:28:49,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21449 states, 21448 states have (on average 1.0194889966430436) internal successors, (21866), 21448 states have internal predecessors, (21866), 0 states have call successors, (0), 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 15:28:49,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21449 states to 21449 states and 21866 transitions. [2024-12-02 15:28:49,220 INFO L78 Accepts]: Start accepts. Automaton has 21449 states and 21866 transitions. Word has length 1587 [2024-12-02 15:28:49,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:28:49,221 INFO L471 AbstractCegarLoop]: Abstraction has 21449 states and 21866 transitions. [2024-12-02 15:28:49,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 148.53846153846155) internal successors, (1931), 13 states have internal predecessors, (1931), 0 states have call successors, (0), 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 15:28:49,221 INFO L276 IsEmpty]: Start isEmpty. Operand 21449 states and 21866 transitions. [2024-12-02 15:28:49,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2217 [2024-12-02 15:28:49,251 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:28:49,251 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:28:49,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 15:28:49,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:28:49,452 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:28:49,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:28:49,452 INFO L85 PathProgramCache]: Analyzing trace with hash 797601150, now seen corresponding path program 1 times [2024-12-02 15:28:49,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:28:49,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420483584] [2024-12-02 15:28:49,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:28:49,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:28:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:28:53,127 INFO L134 CoverageAnalysis]: Checked inductivity of 9200 backedges. 5863 proven. 889 refuted. 0 times theorem prover too weak. 2448 trivial. 0 not checked. [2024-12-02 15:28:53,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:28:53,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420483584] [2024-12-02 15:28:53,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420483584] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:28:53,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119480228] [2024-12-02 15:28:53,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:28:53,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:28:53,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:28:53,129 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:28:53,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 15:28:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:28:53,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 2520 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 15:28:53,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:28:53,804 INFO L134 CoverageAnalysis]: Checked inductivity of 9200 backedges. 1980 proven. 0 refuted. 0 times theorem prover too weak. 7220 trivial. 0 not checked. [2024-12-02 15:28:53,805 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:28:53,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119480228] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:28:53,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:28:53,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-12-02 15:28:53,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050153686] [2024-12-02 15:28:53,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:28:53,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:28:53,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:28:53,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:28:53,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:28:53,806 INFO L87 Difference]: Start difference. First operand 21449 states and 21866 transitions. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 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 15:28:54,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:28:54,573 INFO L93 Difference]: Finished difference Result 42238 states and 43064 transitions. [2024-12-02 15:28:54,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:28:54,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 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 2216 [2024-12-02 15:28:54,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:28:54,586 INFO L225 Difference]: With dead ends: 42238 [2024-12-02 15:28:54,586 INFO L226 Difference]: Without dead ends: 21120 [2024-12-02 15:28:54,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2224 GetRequests, 2218 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:28:54,593 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 219 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 15:28:54,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 56 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 15:28:54,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21120 states. [2024-12-02 15:28:54,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21120 to 20791. [2024-12-02 15:28:54,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20791 states, 20790 states have (on average 1.0157287157287158) internal successors, (21117), 20790 states have internal predecessors, (21117), 0 states have call successors, (0), 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 15:28:54,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20791 states to 20791 states and 21117 transitions. [2024-12-02 15:28:54,760 INFO L78 Accepts]: Start accepts. Automaton has 20791 states and 21117 transitions. Word has length 2216 [2024-12-02 15:28:54,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:28:54,761 INFO L471 AbstractCegarLoop]: Abstraction has 20791 states and 21117 transitions. [2024-12-02 15:28:54,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 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 15:28:54,761 INFO L276 IsEmpty]: Start isEmpty. Operand 20791 states and 21117 transitions. [2024-12-02 15:28:54,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2294 [2024-12-02 15:28:54,790 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:28:54,790 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:28:54,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 15:28:54,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:28:54,991 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:28:54,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:28:54,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1943730005, now seen corresponding path program 1 times [2024-12-02 15:28:54,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:28:54,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285513302] [2024-12-02 15:28:54,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:28:54,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:28:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:28:57,221 INFO L134 CoverageAnalysis]: Checked inductivity of 9514 backedges. 6081 proven. 0 refuted. 0 times theorem prover too weak. 3433 trivial. 0 not checked. [2024-12-02 15:28:57,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:28:57,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285513302] [2024-12-02 15:28:57,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285513302] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:28:57,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:28:57,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:28:57,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074091130] [2024-12-02 15:28:57,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:28:57,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:28:57,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:28:57,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:28:57,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:28:57,223 INFO L87 Difference]: Start difference. First operand 20791 states and 21117 transitions. Second operand has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 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 15:28:58,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:28:58,210 INFO L93 Difference]: Finished difference Result 41262 states and 41912 transitions. [2024-12-02 15:28:58,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:28:58,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 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 2293 [2024-12-02 15:28:58,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:28:58,221 INFO L225 Difference]: With dead ends: 41262 [2024-12-02 15:28:58,221 INFO L226 Difference]: Without dead ends: 20802 [2024-12-02 15:28:58,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:28:58,228 INFO L435 NwaCegarLoop]: 424 mSDtfsCounter, 217 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 15:28:58,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 438 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 15:28:58,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20802 states. [2024-12-02 15:28:58,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20802 to 20791. [2024-12-02 15:28:58,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20791 states, 20790 states have (on average 1.0153920153920153) internal successors, (21110), 20790 states have internal predecessors, (21110), 0 states have call successors, (0), 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 15:28:58,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20791 states to 20791 states and 21110 transitions. [2024-12-02 15:28:58,393 INFO L78 Accepts]: Start accepts. Automaton has 20791 states and 21110 transitions. Word has length 2293 [2024-12-02 15:28:58,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:28:58,394 INFO L471 AbstractCegarLoop]: Abstraction has 20791 states and 21110 transitions. [2024-12-02 15:28:58,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 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 15:28:58,394 INFO L276 IsEmpty]: Start isEmpty. Operand 20791 states and 21110 transitions. [2024-12-02 15:28:58,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2299 [2024-12-02 15:28:58,425 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:28:58,426 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:28:58,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 15:28:58,426 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:28:58,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:28:58,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1480776839, now seen corresponding path program 1 times [2024-12-02 15:28:58,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:28:58,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150664460] [2024-12-02 15:28:58,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:28:58,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:28:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:29:00,283 INFO L134 CoverageAnalysis]: Checked inductivity of 10334 backedges. 6203 proven. 0 refuted. 0 times theorem prover too weak. 4131 trivial. 0 not checked. [2024-12-02 15:29:00,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:29:00,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150664460] [2024-12-02 15:29:00,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150664460] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:29:00,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:29:00,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:29:00,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133918906] [2024-12-02 15:29:00,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:29:00,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:29:00,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:29:00,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:29:00,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:29:00,286 INFO L87 Difference]: Start difference. First operand 20791 states and 21110 transitions. Second operand has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 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 15:29:01,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:29:01,005 INFO L93 Difference]: Finished difference Result 41580 states and 42221 transitions. [2024-12-02 15:29:01,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:29:01,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 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 2298 [2024-12-02 15:29:01,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:29:01,024 INFO L225 Difference]: With dead ends: 41580 [2024-12-02 15:29:01,024 INFO L226 Difference]: Without dead ends: 21120 [2024-12-02 15:29:01,033 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 15:29:01,033 INFO L435 NwaCegarLoop]: 428 mSDtfsCounter, 224 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 15:29:01,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 434 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 15:29:01,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21120 states. [2024-12-02 15:29:01,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21120 to 20462. [2024-12-02 15:29:01,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20462 states, 20461 states have (on average 1.0155906358438005) internal successors, (20780), 20461 states have internal predecessors, (20780), 0 states have call successors, (0), 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 15:29:01,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20462 states to 20462 states and 20780 transitions. [2024-12-02 15:29:01,202 INFO L78 Accepts]: Start accepts. Automaton has 20462 states and 20780 transitions. Word has length 2298 [2024-12-02 15:29:01,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:29:01,203 INFO L471 AbstractCegarLoop]: Abstraction has 20462 states and 20780 transitions. [2024-12-02 15:29:01,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 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 15:29:01,203 INFO L276 IsEmpty]: Start isEmpty. Operand 20462 states and 20780 transitions. [2024-12-02 15:29:01,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2342 [2024-12-02 15:29:01,235 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:29:01,236 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:29:01,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 15:29:01,236 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:29:01,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:29:01,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1297484440, now seen corresponding path program 1 times [2024-12-02 15:29:01,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:29:01,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480597227] [2024-12-02 15:29:01,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:29:01,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:29:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:29:02,369 INFO L134 CoverageAnalysis]: Checked inductivity of 10364 backedges. 5625 proven. 0 refuted. 0 times theorem prover too weak. 4739 trivial. 0 not checked. [2024-12-02 15:29:02,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:29:02,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480597227] [2024-12-02 15:29:02,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480597227] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:29:02,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:29:02,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:29:02,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280430243] [2024-12-02 15:29:02,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:29:02,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:29:02,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:29:02,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:29:02,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:29:02,372 INFO L87 Difference]: Start difference. First operand 20462 states and 20780 transitions. Second operand has 3 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 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 15:29:03,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:29:03,111 INFO L93 Difference]: Finished difference Result 40592 states and 41215 transitions. [2024-12-02 15:29:03,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:29:03,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 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 2341 [2024-12-02 15:29:03,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:29:03,130 INFO L225 Difference]: With dead ends: 40592 [2024-12-02 15:29:03,130 INFO L226 Difference]: Without dead ends: 20461 [2024-12-02 15:29:03,141 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 15:29:03,142 INFO L435 NwaCegarLoop]: 385 mSDtfsCounter, 205 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 15:29:03,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 391 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 15:29:03,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20461 states. [2024-12-02 15:29:03,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20461 to 20132. [2024-12-02 15:29:03,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20132 states, 20131 states have (on average 1.0142566191446027) internal successors, (20418), 20131 states have internal predecessors, (20418), 0 states have call successors, (0), 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 15:29:03,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20132 states to 20132 states and 20418 transitions. [2024-12-02 15:29:03,363 INFO L78 Accepts]: Start accepts. Automaton has 20132 states and 20418 transitions. Word has length 2341 [2024-12-02 15:29:03,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:29:03,364 INFO L471 AbstractCegarLoop]: Abstraction has 20132 states and 20418 transitions. [2024-12-02 15:29:03,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 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 15:29:03,364 INFO L276 IsEmpty]: Start isEmpty. Operand 20132 states and 20418 transitions. [2024-12-02 15:29:03,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2357 [2024-12-02 15:29:03,394 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:29:03,395 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 15:29:03,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 15:29:03,395 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:29:03,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:29:03,396 INFO L85 PathProgramCache]: Analyzing trace with hash 485113818, now seen corresponding path program 1 times [2024-12-02 15:29:03,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:29:03,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381531414] [2024-12-02 15:29:03,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:29:03,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:29:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:29:05,830 INFO L134 CoverageAnalysis]: Checked inductivity of 10002 backedges. 6422 proven. 0 refuted. 0 times theorem prover too weak. 3580 trivial. 0 not checked. [2024-12-02 15:29:05,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:29:05,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381531414] [2024-12-02 15:29:05,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381531414] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:29:05,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:29:05,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:29:05,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88304757] [2024-12-02 15:29:05,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:29:05,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:29:05,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:29:05,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:29:05,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:29:05,833 INFO L87 Difference]: Start difference. First operand 20132 states and 20418 transitions. Second operand has 6 states, 6 states have (on average 140.66666666666666) internal successors, (844), 6 states have internal predecessors, (844), 0 states have call successors, (0), 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 15:29:07,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:29:07,164 INFO L93 Difference]: Finished difference Result 39934 states and 40504 transitions. [2024-12-02 15:29:07,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:29:07,165 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 140.66666666666666) internal successors, (844), 6 states have internal predecessors, (844), 0 states have call successors, (0), 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 2356 [2024-12-02 15:29:07,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:29:07,179 INFO L225 Difference]: With dead ends: 39934 [2024-12-02 15:29:07,179 INFO L226 Difference]: Without dead ends: 20133 [2024-12-02 15:29:07,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:29:07,188 INFO L435 NwaCegarLoop]: 425 mSDtfsCounter, 417 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 2318 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:29:07,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 565 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2318 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 15:29:07,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20133 states. [2024-12-02 15:29:07,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20133 to 20132. [2024-12-02 15:29:07,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20132 states, 20131 states have (on average 1.0141572698822712) internal successors, (20416), 20131 states have internal predecessors, (20416), 0 states have call successors, (0), 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 15:29:07,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20132 states to 20132 states and 20416 transitions. [2024-12-02 15:29:07,349 INFO L78 Accepts]: Start accepts. Automaton has 20132 states and 20416 transitions. Word has length 2356 [2024-12-02 15:29:07,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:29:07,350 INFO L471 AbstractCegarLoop]: Abstraction has 20132 states and 20416 transitions. [2024-12-02 15:29:07,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 140.66666666666666) internal successors, (844), 6 states have internal predecessors, (844), 0 states have call successors, (0), 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 15:29:07,350 INFO L276 IsEmpty]: Start isEmpty. Operand 20132 states and 20416 transitions. [2024-12-02 15:29:07,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2394 [2024-12-02 15:29:07,383 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:29:07,384 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:29:07,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 15:29:07,384 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:29:07,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:29:07,385 INFO L85 PathProgramCache]: Analyzing trace with hash -954482011, now seen corresponding path program 1 times [2024-12-02 15:29:07,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:29:07,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263253573] [2024-12-02 15:29:07,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:29:07,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:29:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:29:10,611 INFO L134 CoverageAnalysis]: Checked inductivity of 11447 backedges. 8326 proven. 486 refuted. 0 times theorem prover too weak. 2635 trivial. 0 not checked. [2024-12-02 15:29:10,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:29:10,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263253573] [2024-12-02 15:29:10,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263253573] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:29:10,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819347154] [2024-12-02 15:29:10,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:29:10,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:29:10,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:29:10,613 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:29:10,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 15:29:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:29:11,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 2742 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:29:11,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:29:11,595 INFO L134 CoverageAnalysis]: Checked inductivity of 11447 backedges. 6917 proven. 0 refuted. 0 times theorem prover too weak. 4530 trivial. 0 not checked. [2024-12-02 15:29:11,595 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:29:11,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819347154] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:29:11,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:29:11,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-12-02 15:29:11,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897207263] [2024-12-02 15:29:11,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:29:11,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:29:11,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:29:11,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:29:11,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:29:11,597 INFO L87 Difference]: Start difference. First operand 20132 states and 20416 transitions. Second operand has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 0 states have call successors, (0), 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 15:29:12,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:29:12,314 INFO L93 Difference]: Finished difference Result 40262 states and 40830 transitions. [2024-12-02 15:29:12,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:29:12,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 0 states have call successors, (0), 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 2393 [2024-12-02 15:29:12,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:29:12,328 INFO L225 Difference]: With dead ends: 40262 [2024-12-02 15:29:12,328 INFO L226 Difference]: Without dead ends: 20461 [2024-12-02 15:29:12,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2400 GetRequests, 2394 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:29:12,337 INFO L435 NwaCegarLoop]: 419 mSDtfsCounter, 123 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 15:29:12,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 424 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 15:29:12,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20461 states. [2024-12-02 15:29:12,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20461 to 20132. [2024-12-02 15:29:12,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20132 states, 20131 states have (on average 1.0139585713576076) internal successors, (20412), 20131 states have internal predecessors, (20412), 0 states have call successors, (0), 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 15:29:12,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20132 states to 20132 states and 20412 transitions. [2024-12-02 15:29:12,498 INFO L78 Accepts]: Start accepts. Automaton has 20132 states and 20412 transitions. Word has length 2393 [2024-12-02 15:29:12,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:29:12,499 INFO L471 AbstractCegarLoop]: Abstraction has 20132 states and 20412 transitions. [2024-12-02 15:29:12,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 0 states have call successors, (0), 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 15:29:12,499 INFO L276 IsEmpty]: Start isEmpty. Operand 20132 states and 20412 transitions. [2024-12-02 15:29:12,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2470 [2024-12-02 15:29:12,532 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:29:12,533 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-12-02 15:29:12,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 15:29:12,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-02 15:29:12,733 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:29:12,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:29:12,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1019327256, now seen corresponding path program 1 times [2024-12-02 15:29:12,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:29:12,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625011445] [2024-12-02 15:29:12,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:29:12,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:29:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:29:13,745 INFO L134 CoverageAnalysis]: Checked inductivity of 13074 backedges. 4367 proven. 0 refuted. 0 times theorem prover too weak. 8707 trivial. 0 not checked. [2024-12-02 15:29:13,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:29:13,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625011445] [2024-12-02 15:29:13,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625011445] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:29:13,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:29:13,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:29:13,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073007210] [2024-12-02 15:29:13,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:29:13,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:29:13,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:29:13,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:29:13,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:29:13,748 INFO L87 Difference]: Start difference. First operand 20132 states and 20412 transitions. Second operand has 3 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 0 states have call successors, (0), 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 15:29:14,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:29:14,453 INFO L93 Difference]: Finished difference Result 41578 states and 42162 transitions. [2024-12-02 15:29:14,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:29:14,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 0 states have call successors, (0), 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 2469 [2024-12-02 15:29:14,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:29:14,466 INFO L225 Difference]: With dead ends: 41578 [2024-12-02 15:29:14,467 INFO L226 Difference]: Without dead ends: 21777 [2024-12-02 15:29:14,476 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 15:29:14,477 INFO L435 NwaCegarLoop]: 413 mSDtfsCounter, 198 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 15:29:14,477 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 419 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 15:29:14,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21777 states. [2024-12-02 15:29:14,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21777 to 19803. [2024-12-02 15:29:14,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19803 states, 19802 states have (on average 1.014089485910514) internal successors, (20081), 19802 states have internal predecessors, (20081), 0 states have call successors, (0), 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 15:29:14,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19803 states to 19803 states and 20081 transitions. [2024-12-02 15:29:14,644 INFO L78 Accepts]: Start accepts. Automaton has 19803 states and 20081 transitions. Word has length 2469 [2024-12-02 15:29:14,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:29:14,645 INFO L471 AbstractCegarLoop]: Abstraction has 19803 states and 20081 transitions. [2024-12-02 15:29:14,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 0 states have call successors, (0), 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 15:29:14,645 INFO L276 IsEmpty]: Start isEmpty. Operand 19803 states and 20081 transitions. [2024-12-02 15:29:14,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2610 [2024-12-02 15:29:14,681 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:29:14,681 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2024-12-02 15:29:14,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 15:29:14,681 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:29:14,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:29:14,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1341586274, now seen corresponding path program 1 times [2024-12-02 15:29:14,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:29:14,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524348297] [2024-12-02 15:29:14,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:29:14,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:29:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:29:17,378 INFO L134 CoverageAnalysis]: Checked inductivity of 13418 backedges. 4318 proven. 134 refuted. 0 times theorem prover too weak. 8966 trivial. 0 not checked. [2024-12-02 15:29:17,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:29:17,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524348297] [2024-12-02 15:29:17,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524348297] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:29:17,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726576196] [2024-12-02 15:29:17,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:29:17,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:29:17,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:29:17,380 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:29:17,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 15:29:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:29:17,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 2951 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:29:18,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:29:18,354 INFO L134 CoverageAnalysis]: Checked inductivity of 13418 backedges. 3030 proven. 0 refuted. 0 times theorem prover too weak. 10388 trivial. 0 not checked. [2024-12-02 15:29:18,354 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:29:18,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726576196] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:29:18,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:29:18,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2024-12-02 15:29:18,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030577693] [2024-12-02 15:29:18,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:29:18,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:29:18,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:29:18,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:29:18,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:29:18,356 INFO L87 Difference]: Start difference. First operand 19803 states and 20081 transitions. Second operand has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 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 15:29:19,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:29:19,601 INFO L93 Difference]: Finished difference Result 43282 states and 43895 transitions. [2024-12-02 15:29:19,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:29:19,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 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 2609 [2024-12-02 15:29:19,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:29:19,618 INFO L225 Difference]: With dead ends: 43282 [2024-12-02 15:29:19,618 INFO L226 Difference]: Without dead ends: 23751 [2024-12-02 15:29:19,627 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2613 GetRequests, 2609 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:29:19,627 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 363 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1512 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:29:19,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 24 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1512 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 15:29:19,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23751 states. [2024-12-02 15:29:19,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23751 to 19803. [2024-12-02 15:29:19,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19803 states, 19802 states have (on average 1.013988486011514) internal successors, (20079), 19802 states have internal predecessors, (20079), 0 states have call successors, (0), 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 15:29:19,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19803 states to 19803 states and 20079 transitions. [2024-12-02 15:29:19,801 INFO L78 Accepts]: Start accepts. Automaton has 19803 states and 20079 transitions. Word has length 2609 [2024-12-02 15:29:19,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:29:19,803 INFO L471 AbstractCegarLoop]: Abstraction has 19803 states and 20079 transitions. [2024-12-02 15:29:19,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 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 15:29:19,803 INFO L276 IsEmpty]: Start isEmpty. Operand 19803 states and 20079 transitions. [2024-12-02 15:29:19,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2805 [2024-12-02 15:29:19,846 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:29:19,847 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:29:19,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 15:29:20,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:29:20,047 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:29:20,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:29:20,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1482410570, now seen corresponding path program 1 times [2024-12-02 15:29:20,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:29:20,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104596691] [2024-12-02 15:29:20,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:29:20,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:29:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:29:26,756 INFO L134 CoverageAnalysis]: Checked inductivity of 15082 backedges. 6252 proven. 5961 refuted. 0 times theorem prover too weak. 2869 trivial. 0 not checked. [2024-12-02 15:29:26,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:29:26,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104596691] [2024-12-02 15:29:26,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104596691] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:29:26,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824978253] [2024-12-02 15:29:26,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:29:26,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:29:26,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:29:26,758 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:29:26,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 15:29:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:29:27,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 3171 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 15:29:27,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:29:29,607 INFO L134 CoverageAnalysis]: Checked inductivity of 15082 backedges. 10567 proven. 60 refuted. 0 times theorem prover too weak. 4455 trivial. 0 not checked. [2024-12-02 15:29:29,607 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:29:32,086 INFO L134 CoverageAnalysis]: Checked inductivity of 15082 backedges. 10567 proven. 60 refuted. 0 times theorem prover too weak. 4455 trivial. 0 not checked. [2024-12-02 15:29:32,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824978253] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:29:32,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:29:32,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 12 [2024-12-02 15:29:32,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454608258] [2024-12-02 15:29:32,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:29:32,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 15:29:32,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:29:32,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 15:29:32,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:29:32,090 INFO L87 Difference]: Start difference. First operand 19803 states and 20079 transitions. Second operand has 12 states, 12 states have (on average 169.5) internal successors, (2034), 12 states have internal predecessors, (2034), 0 states have call successors, (0), 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 15:29:37,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:29:37,281 INFO L93 Difference]: Finished difference Result 40591 states and 41151 transitions. [2024-12-02 15:29:37,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 15:29:37,282 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 169.5) internal successors, (2034), 12 states have internal predecessors, (2034), 0 states have call successors, (0), 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 2804 [2024-12-02 15:29:37,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:29:37,297 INFO L225 Difference]: With dead ends: 40591 [2024-12-02 15:29:37,297 INFO L226 Difference]: Without dead ends: 21119 [2024-12-02 15:29:37,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5624 GetRequests, 5609 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-12-02 15:29:37,305 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 1422 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 12246 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 12274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 12246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-12-02 15:29:37,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 162 Invalid, 12274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 12246 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-12-02 15:29:37,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21119 states. [2024-12-02 15:29:37,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21119 to 19803. [2024-12-02 15:29:37,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19803 states, 19802 states have (on average 1.0137864862135137) internal successors, (20075), 19802 states have internal predecessors, (20075), 0 states have call successors, (0), 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 15:29:37,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19803 states to 19803 states and 20075 transitions. [2024-12-02 15:29:37,478 INFO L78 Accepts]: Start accepts. Automaton has 19803 states and 20075 transitions. Word has length 2804 [2024-12-02 15:29:37,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:29:37,479 INFO L471 AbstractCegarLoop]: Abstraction has 19803 states and 20075 transitions. [2024-12-02 15:29:37,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 169.5) internal successors, (2034), 12 states have internal predecessors, (2034), 0 states have call successors, (0), 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 15:29:37,480 INFO L276 IsEmpty]: Start isEmpty. Operand 19803 states and 20075 transitions. [2024-12-02 15:29:37,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2826 [2024-12-02 15:29:37,525 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:29:37,525 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 15:29:37,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 15:29:37,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:29:37,726 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:29:37,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:29:37,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1996546871, now seen corresponding path program 1 times [2024-12-02 15:29:37,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:29:37,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129540607] [2024-12-02 15:29:37,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:29:37,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:29:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:29:42,013 INFO L134 CoverageAnalysis]: Checked inductivity of 16707 backedges. 9750 proven. 2272 refuted. 0 times theorem prover too weak. 4685 trivial. 0 not checked. [2024-12-02 15:29:42,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:29:42,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129540607] [2024-12-02 15:29:42,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129540607] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:29:42,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8824330] [2024-12-02 15:29:42,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:29:42,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:29:42,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:29:42,015 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:29:42,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 15:29:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:29:42,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 3209 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:29:42,683 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:29:42,885 INFO L134 CoverageAnalysis]: Checked inductivity of 16707 backedges. 6088 proven. 0 refuted. 0 times theorem prover too weak. 10619 trivial. 0 not checked. [2024-12-02 15:29:42,885 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:29:42,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8824330] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:29:42,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:29:42,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-12-02 15:29:42,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722299552] [2024-12-02 15:29:42,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:29:42,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:29:42,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:29:42,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:29:42,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:29:42,888 INFO L87 Difference]: Start difference. First operand 19803 states and 20075 transitions. Second operand has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 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 15:29:43,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:29:43,607 INFO L93 Difference]: Finished difference Result 38227 states and 38745 transitions. [2024-12-02 15:29:43,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:29:43,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 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 2825 [2024-12-02 15:29:43,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:29:43,610 INFO L225 Difference]: With dead ends: 38227 [2024-12-02 15:29:43,610 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 15:29:43,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2831 GetRequests, 2825 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:29:43,619 INFO L435 NwaCegarLoop]: 407 mSDtfsCounter, 119 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 15:29:43,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 412 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 15:29:43,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 15:29:43,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 15:29:43,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 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 15:29:43,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 15:29:43,621 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2825 [2024-12-02 15:29:43,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:29:43,621 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 15:29:43,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 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 15:29:43,621 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 15:29:43,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 15:29:43,624 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 15:29:43,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 15:29:43,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-12-02 15:29:43,827 INFO L422 BasicCegarLoop]: Path program 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] [2024-12-02 15:29:43,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 15:29:50,408 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 15:29:50,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:29:50 BoogieIcfgContainer [2024-12-02 15:29:50,452 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 15:29:50,453 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 15:29:50,453 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 15:29:50,453 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 15:29:50,454 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:27:16" (3/4) ... [2024-12-02 15:29:50,456 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 15:29:50,484 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-12-02 15:29:50,486 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 15:29:50,488 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 15:29:50,490 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 15:29:50,693 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 15:29:50,694 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 15:29:50,694 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 15:29:50,695 INFO L158 Benchmark]: Toolchain (without parser) took 157921.73ms. Allocated memory was 117.4MB in the beginning and 2.5GB in the end (delta: 2.4GB). Free memory was 89.0MB in the beginning and 762.2MB in the end (delta: -673.2MB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2024-12-02 15:29:50,695 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:29:50,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 768.26ms. Allocated memory is still 117.4MB. Free memory was 88.8MB in the beginning and 79.6MB in the end (delta: 9.1MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. [2024-12-02 15:29:50,695 INFO L158 Benchmark]: Boogie Procedure Inliner took 119.26ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 56.2MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 15:29:50,695 INFO L158 Benchmark]: Boogie Preprocessor took 185.14ms. Allocated memory is still 117.4MB. Free memory was 56.2MB in the beginning and 62.2MB in the end (delta: -6.0MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. [2024-12-02 15:29:50,695 INFO L158 Benchmark]: RCFGBuilder took 2239.32ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 62.2MB in the beginning and 92.2MB in the end (delta: -29.9MB). Peak memory consumption was 127.0MB. Max. memory is 16.1GB. [2024-12-02 15:29:50,696 INFO L158 Benchmark]: TraceAbstraction took 154363.37ms. Allocated memory was 234.9MB in the beginning and 2.5GB in the end (delta: 2.2GB). Free memory was 92.2MB in the beginning and 787.3MB in the end (delta: -695.2MB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2024-12-02 15:29:50,696 INFO L158 Benchmark]: Witness Printer took 241.03ms. Allocated memory is still 2.5GB. Free memory was 787.3MB in the beginning and 762.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 15:29:50,709 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 768.26ms. Allocated memory is still 117.4MB. Free memory was 88.8MB in the beginning and 79.6MB in the end (delta: 9.1MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 119.26ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 56.2MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 185.14ms. Allocated memory is still 117.4MB. Free memory was 56.2MB in the beginning and 62.2MB in the end (delta: -6.0MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. * RCFGBuilder took 2239.32ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 62.2MB in the beginning and 92.2MB in the end (delta: -29.9MB). Peak memory consumption was 127.0MB. Max. memory is 16.1GB. * TraceAbstraction took 154363.37ms. Allocated memory was 234.9MB in the beginning and 2.5GB in the end (delta: 2.2GB). Free memory was 92.2MB in the beginning and 787.3MB in the end (delta: -695.2MB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. * Witness Printer took 241.03ms. Allocated memory is still 2.5GB. Free memory was 787.3MB in the beginning and 762.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 200]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 396 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 147.7s, OverallIterations: 33, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.6s, AutomataDifference: 60.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17829 SdHoareTripleChecker+Valid, 55.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17829 mSDsluCounter, 8823 SdHoareTripleChecker+Invalid, 47.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1092 mSDsCounter, 6017 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 89395 IncrementalHoareTripleChecker+Invalid, 95412 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6017 mSolverCounterUnsat, 7731 mSDtfsCounter, 89395 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26738 GetRequests, 26580 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25397occurred in iteration=16, InterpolantAutomatonStates: 180, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.9s AutomataMinimizationTime, 33 MinimizatonAttempts, 31102 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.3s SsaConstructionTime, 4.6s SatisfiabilityAnalysisTime, 70.1s InterpolantComputationTime, 61276 NumberOfCodeBlocks, 61276 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 69327 ConstructedInterpolants, 0 QuantifiedInterpolants, 217138 SizeOfPredicates, 24 NumberOfNonLiveVariables, 21125 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 50 InterpolantComputations, 27 PerfectInterpolantSequences, 244192/258444 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1783]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((a12 == 9) && (a16 == 9)) && (a15 == 4)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a18 <= 134)) || (((((0 <= ((long long) 87 + a18)) && (a16 == 8)) && (a15 == 4)) && (7 == a12)) && (a18 <= 134))) || ((((((a16 == 9) && (a15 == 4)) && (a12 == 8)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a18 <= 134))) || ((((((a16 == 8) && (a15 == 4)) && (a12 == 8)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (((long long) a18 + 192034) <= 0))) || (((((0 <= ((long long) 87 + a18)) && (a16 == 8)) && (a15 == 4)) && (a12 == 8)) && (a18 <= 134))) || (((((((0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985)) && (10 <= a16)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a12 <= 6)) && (a16 <= 11)) && (a15 == 3)) && (a18 <= 134))) || (((((((a15 == 4) && (5 != a12)) && (10 <= a16)) && (a18 <= 594508)) && (135 <= a18)) && (a12 <= 6)) && (a16 <= 11))) || (((((((a15 == 4) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && (10 <= a16)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a12 <= 6)) && (a16 <= 11)) && (a18 <= 134))) || (((((0 <= ((long long) 87 + a18)) && (a12 == 9)) && (a16 == 8)) && (a15 == 4)) && (a18 <= 134))) || (((((a18 <= 597816) && (a16 == 9)) && (a15 == 4)) && (7 == a12)) && (594219 <= a18))) || ((((((a12 == 9) && (a16 == 11)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && (((long long) a18 + 156) <= 0)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a15 == 3))) || ((((((a12 == 9) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && (((long long) a18 + 156) <= 0)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a16 == 12)) && (a15 == 3))) || ((((((a16 == 9) && (a12 == 8)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a15 == 3)) && (a18 <= 600002))) || ((((((a16 == 11) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a15 == 3)) && (7 == a12)) && (a18 <= 134))) || ((((((a16 == 8) && (a15 == 4)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (5 == a12)) && (a18 <= 134))) || (((((0 <= ((long long) 87 + a18)) && (a12 == 9)) && (a16 == 11)) && (a15 == 3)) && (a18 <= 134))) || (((((a16 == 10) && (598710 <= a18)) && (a15 == 4)) && (5 == a12)) && (a18 <= 600002))) || (((((a18 <= 69306) && (a12 == 9)) && (a16 == 8)) && (a15 == 4)) && (69094 <= a18))) || ((((((a12 == 9) && (a16 == 8)) && (a15 == 4)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (((long long) 87 + a18) <= 0))) || (((((a12 == 9) && (a16 == 12)) && (135 <= a18)) && (a15 == 3)) && (a18 <= 600002))) || (((((0 <= ((long long) 87 + a18)) && (a16 == 9)) && (a12 <= 7)) && (a15 == 3)) && (a18 <= 600002))) || ((((((a12 == 8) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a16 == 12)) && (a15 == 3)) && (a18 <= 134))) || (((((a18 <= 594508) && (a16 == 12)) && (a12 <= 6)) && (a15 == 3)) && (594219 <= a18))) || ((((((a16 == 9) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (((long long) 87 + a18) <= 0)) && (a12 <= 7)) && (a15 == 3))) || ((((((a16 == 9) && (a15 == 4)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a12 <= 6)) && (a18 <= 134))) || (((((a16 == 12) && (5 == a12)) && (0 < ((long long) a18 + 156))) && (a15 == 3)) && (a18 <= 134))) || ((10 <= a16) && ((((((((0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985)) && (5 != a12)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a12 <= 6)) && (a16 <= 11)) && (a15 == 3)) && (a18 <= 600002)) || ((((((0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (((long long) 87 + a18) <= 0)) && (a12 <= 7)) && (a16 <= 11)) && (a15 == 3))))) || ((((((a16 == 8) && (a15 == 4)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (((long long) 300160 + a18) <= 0)) && (a12 <= 6))) || (((((a16 == 8) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && (((long long) a18 + 292384) <= 0)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a15 == 3))) || (((((a16 == 8) && (a15 == 4)) && (a18 <= 594508)) && (135 <= a18)) && (a12 <= 6))) || ((a16 == 9) && (((((0 <= ((long long) 87 + a18)) && (a12 == 9)) && (a15 == 3)) && (a18 <= 600002)) || (((((a12 == 9) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && (((long long) a18 + 292384) <= 0)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a15 == 3))))) || (((((0 <= ((long long) 87 + a18)) && (a16 == 8)) && (a15 == 4)) && (a12 <= 6)) && (a18 <= 134))) || (((((0 <= ((long long) 87 + a18)) && (a16 == 9)) && (a15 == 4)) && (7 == a12)) && (a18 <= 134))) || ((((((a16 == 8) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (5 == a12)) && (a15 == 3)) && (a18 <= 134))) || (((((a16 == 12) && (135 <= a18)) && (5 == a12)) && (a15 == 3)) && (a18 <= 600002))) || ((((((a16 == 9) && (a15 == 4)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && (((long long) a18 + 292384) <= 0)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (7 == a12))) || (((((0 <= ((long long) 87 + a18)) && (a16 == 12)) && (a12 <= 6)) && (a15 == 3)) && (a18 <= 134))) || (((((0 <= ((long long) 87 + a18)) && (a12 == 9)) && (a16 == 12)) && (a15 == 3)) && (a18 <= 134))) || (((((0 <= ((long long) 87 + a18)) && (a18 <= 597816)) && (a12 == 8)) && (a16 == 12)) && (a15 == 3))) || ((((((a16 == 8) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (((long long) 87 + a18) <= 0)) && (a12 <= 7)) && (a15 == 3))) || (((((((a12 == 8) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && (10 <= a16)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a16 <= 11)) && (a15 == 3)) && (a18 <= 600002))) || ((((((0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (a16 == 12)) && (a15 == 3)) && (7 == a12)) && (a18 <= 134))) || (((((0 <= ((long long) 87 + a18)) && (a16 == 8)) && (5 != a12)) && (a15 == 3)) && (a18 <= 600002))) || ((((((a16 == 8) && (a15 == 4)) && (0 <= ((((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) >= 0) ? ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) : (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) + 10) / 9) - 1)) + 401985))) && (((long long) a18 + 156) <= 0)) && ((0 < (((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) >= 0) ? (((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) : ((((long long) ((a18 >= 0) ? (a18 / 5) : ((a18 / 5) - 1)) * 10) / 9) - 1)) + 401986)) || (((a18 >= 0) ? (a18 % 5) : ((a18 % 5) + 5)) != 0))) && (7 == a12))) RESULT: Ultimate proved your program to be correct! [2024-12-02 15:29:50,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f167b99-2771-4a26-a661-f869ef814d5c/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE