./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i --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_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/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_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/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_1c4dafa5-de29-486b-8dd1-abd17d9ee656/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 34c00af4b4663198525b0b7086d994deb20901b2017b1e6c2fe4ceb71d985d42 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:04:04,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:04:04,940 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 12:04:04,944 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:04:04,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:04:04,966 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:04:04,967 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:04:04,967 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:04:04,967 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:04:04,967 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:04:04,968 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:04:04,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:04:04,968 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:04:04,968 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:04:04,968 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:04:04,968 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:04:04,968 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:04:04,968 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:04:04,969 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:04:04,969 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:04:04,969 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:04:04,969 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:04:04,969 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:04:04,969 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:04:04,969 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:04:04,969 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:04:04,969 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:04:04,969 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:04:04,969 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:04:04,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:04:04,970 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:04:04,970 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:04:04,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:04:04,970 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:04:04,970 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:04:04,970 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:04:04,970 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:04:04,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:04:04,971 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:04:04,971 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:04:04,971 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:04:04,971 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:04:04,971 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:04:04,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:04:04,971 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:04:04,971 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:04:04,972 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:04:04,972 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:04:04,972 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_1c4dafa5-de29-486b-8dd1-abd17d9ee656/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 -> 34c00af4b4663198525b0b7086d994deb20901b2017b1e6c2fe4ceb71d985d42 [2024-12-02 12:04:05,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:04:05,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:04:05,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:04:05,211 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:04:05,211 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:04:05,212 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i [2024-12-02 12:04:07,852 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/data/b07ae8354/36c33f3916f04490879cba946c5bf020/FLAGf4795dc4a [2024-12-02 12:04:08,067 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:04:08,067 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i [2024-12-02 12:04:08,074 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/data/b07ae8354/36c33f3916f04490879cba946c5bf020/FLAGf4795dc4a [2024-12-02 12:04:08,087 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/data/b07ae8354/36c33f3916f04490879cba946c5bf020 [2024-12-02 12:04:08,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:04:08,090 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:04:08,091 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:04:08,091 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:04:08,094 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:04:08,094 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:04:08" (1/1) ... [2024-12-02 12:04:08,095 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa39db9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:08, skipping insertion in model container [2024-12-02 12:04:08,095 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:04:08" (1/1) ... [2024-12-02 12:04:08,107 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:04:08,208 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_1c4dafa5-de29-486b-8dd1-abd17d9ee656/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i[916,929] [2024-12-02 12:04:08,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:04:08,266 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:04:08,273 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_1c4dafa5-de29-486b-8dd1-abd17d9ee656/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i[916,929] [2024-12-02 12:04:08,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:04:08,321 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:04:08,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:08 WrapperNode [2024-12-02 12:04:08,321 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:04:08,322 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:04:08,322 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:04:08,322 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:04:08,327 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:08" (1/1) ... [2024-12-02 12:04:08,338 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:08" (1/1) ... [2024-12-02 12:04:08,369 INFO L138 Inliner]: procedures = 29, calls = 143, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 480 [2024-12-02 12:04:08,369 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:04:08,369 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:04:08,370 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:04:08,370 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:04:08,376 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:08" (1/1) ... [2024-12-02 12:04:08,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:08" (1/1) ... [2024-12-02 12:04:08,382 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:08" (1/1) ... [2024-12-02 12:04:08,400 INFO L175 MemorySlicer]: Split 115 memory accesses to 6 slices as follows [2, 6, 29, 22, 46, 10]. 40 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 1, 3, 2, 3, 1]. The 13 writes are split as follows [0, 1, 4, 2, 4, 2]. [2024-12-02 12:04:08,401 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:08" (1/1) ... [2024-12-02 12:04:08,401 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:08" (1/1) ... [2024-12-02 12:04:08,419 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:08" (1/1) ... [2024-12-02 12:04:08,420 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:08" (1/1) ... [2024-12-02 12:04:08,425 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:08" (1/1) ... [2024-12-02 12:04:08,427 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:08" (1/1) ... [2024-12-02 12:04:08,429 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:08" (1/1) ... [2024-12-02 12:04:08,434 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:04:08,435 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:04:08,435 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:04:08,435 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:04:08,436 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:08" (1/1) ... [2024-12-02 12:04:08,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:04:08,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:04:08,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:04:08,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:04:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:04:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-12-02 12:04:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-12-02 12:04:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-12-02 12:04:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-12-02 12:04:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-12-02 12:04:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-12-02 12:04:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 12:04:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 12:04:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 12:04:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 12:04:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 12:04:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 12:04:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-12-02 12:04:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-12-02 12:04:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-12-02 12:04:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-12-02 12:04:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-12-02 12:04:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-12-02 12:04:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 12:04:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 12:04:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 12:04:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 12:04:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 12:04:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 12:04:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-12-02 12:04:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-12-02 12:04:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-12-02 12:04:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-12-02 12:04:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-12-02 12:04:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-12-02 12:04:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 12:04:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 12:04:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:04:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 12:04:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 12:04:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 12:04:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 12:04:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 12:04:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:04:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:04:08,600 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:04:08,602 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:04:09,029 INFO L? ?]: Removed 145 outVars from TransFormulas that were not future-live. [2024-12-02 12:04:09,029 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:04:09,038 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:04:09,038 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 12:04:09,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:04:09 BoogieIcfgContainer [2024-12-02 12:04:09,038 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:04:09,041 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:04:09,041 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:04:09,044 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:04:09,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:04:08" (1/3) ... [2024-12-02 12:04:09,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33aa4f6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:04:09, skipping insertion in model container [2024-12-02 12:04:09,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:08" (2/3) ... [2024-12-02 12:04:09,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33aa4f6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:04:09, skipping insertion in model container [2024-12-02 12:04:09,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:04:09" (3/3) ... [2024-12-02 12:04:09,046 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-18.i [2024-12-02 12:04:09,057 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:04:09,059 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-18.i that has 2 procedures, 108 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 12:04:09,122 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:04:09,133 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;@269cb983, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:04:09,133 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:04:09,137 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 93 states have (on average 1.4623655913978495) internal successors, (136), 94 states have internal predecessors, (136), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 12:04:09,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 12:04:09,144 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:09,145 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:09,145 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:09,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:09,150 INFO L85 PathProgramCache]: Analyzing trace with hash 2059805146, now seen corresponding path program 1 times [2024-12-02 12:04:09,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:09,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895515876] [2024-12-02 12:04:09,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:09,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:09,381 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-12-02 12:04:09,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:09,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895515876] [2024-12-02 12:04:09,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895515876] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:04:09,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765276702] [2024-12-02 12:04:09,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:09,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:09,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:04:09,385 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:04:09,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 12:04:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:09,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 12:04:09,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:09,612 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-12-02 12:04:09,612 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:04:09,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765276702] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:09,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:04:09,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 12:04:09,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155989722] [2024-12-02 12:04:09,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:09,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 12:04:09,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:09,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 12:04:09,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:04:09,633 INFO L87 Difference]: Start difference. First operand has 108 states, 93 states have (on average 1.4623655913978495) internal successors, (136), 94 states have internal predecessors, (136), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:04:09,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:09,655 INFO L93 Difference]: Finished difference Result 209 states and 326 transitions. [2024-12-02 12:04:09,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 12:04:09,657 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2024-12-02 12:04:09,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:09,662 INFO L225 Difference]: With dead ends: 209 [2024-12-02 12:04:09,662 INFO L226 Difference]: Without dead ends: 104 [2024-12-02 12:04:09,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:04:09,666 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:09,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:04:09,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-12-02 12:04:09,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-12-02 12:04:09,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 90 states have (on average 1.4333333333333333) internal successors, (129), 90 states have internal predecessors, (129), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 12:04:09,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 153 transitions. [2024-12-02 12:04:09,697 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 153 transitions. Word has length 107 [2024-12-02 12:04:09,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:09,698 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 153 transitions. [2024-12-02 12:04:09,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:04:09,698 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 153 transitions. [2024-12-02 12:04:09,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 12:04:09,701 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:09,701 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:09,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 12:04:09,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 12:04:09,901 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:09,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:09,902 INFO L85 PathProgramCache]: Analyzing trace with hash -528351354, now seen corresponding path program 1 times [2024-12-02 12:04:09,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:09,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930360961] [2024-12-02 12:04:09,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:09,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:10,132 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:10,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:10,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930360961] [2024-12-02 12:04:10,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930360961] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:10,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:10,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:04:10,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704604082] [2024-12-02 12:04:10,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:10,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:04:10,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:10,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:04:10,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:04:10,135 INFO L87 Difference]: Start difference. First operand 104 states and 153 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:04:10,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:10,169 INFO L93 Difference]: Finished difference Result 207 states and 306 transitions. [2024-12-02 12:04:10,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:04:10,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2024-12-02 12:04:10,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:10,171 INFO L225 Difference]: With dead ends: 207 [2024-12-02 12:04:10,171 INFO L226 Difference]: Without dead ends: 106 [2024-12-02 12:04:10,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:04:10,173 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 0 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:10,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 442 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:04:10,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-12-02 12:04:10,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-12-02 12:04:10,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 92 states have (on average 1.423913043478261) internal successors, (131), 92 states have internal predecessors, (131), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 12:04:10,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 155 transitions. [2024-12-02 12:04:10,182 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 155 transitions. Word has length 107 [2024-12-02 12:04:10,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:10,183 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 155 transitions. [2024-12-02 12:04:10,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:04:10,184 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 155 transitions. [2024-12-02 12:04:10,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 12:04:10,185 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:10,185 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:10,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:04:10,186 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:10,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:10,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1889552712, now seen corresponding path program 1 times [2024-12-02 12:04:10,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:10,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510950796] [2024-12-02 12:04:10,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:10,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:10,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:10,671 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:10,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:10,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510950796] [2024-12-02 12:04:10,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510950796] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:10,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:10,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:04:10,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275173530] [2024-12-02 12:04:10,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:10,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:04:10,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:10,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:04:10,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:04:10,673 INFO L87 Difference]: Start difference. First operand 106 states and 155 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:10,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:10,907 INFO L93 Difference]: Finished difference Result 312 states and 459 transitions. [2024-12-02 12:04:10,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:04:10,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 107 [2024-12-02 12:04:10,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:10,909 INFO L225 Difference]: With dead ends: 312 [2024-12-02 12:04:10,910 INFO L226 Difference]: Without dead ends: 209 [2024-12-02 12:04:10,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:04:10,911 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 115 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:10,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 445 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:04:10,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-12-02 12:04:10,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 204. [2024-12-02 12:04:10,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 177 states have (on average 1.423728813559322) internal successors, (252), 177 states have internal predecessors, (252), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 12:04:10,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 300 transitions. [2024-12-02 12:04:10,931 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 300 transitions. Word has length 107 [2024-12-02 12:04:10,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:10,932 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 300 transitions. [2024-12-02 12:04:10,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:10,932 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 300 transitions. [2024-12-02 12:04:10,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 12:04:10,934 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:10,934 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:10,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 12:04:10,935 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:10,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:10,935 INFO L85 PathProgramCache]: Analyzing trace with hash 724231687, now seen corresponding path program 1 times [2024-12-02 12:04:10,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:10,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960790871] [2024-12-02 12:04:10,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:10,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:11,376 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:11,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:11,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960790871] [2024-12-02 12:04:11,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960790871] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:11,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:11,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:04:11,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462249609] [2024-12-02 12:04:11,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:11,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:04:11,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:11,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:04:11,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:04:11,378 INFO L87 Difference]: Start difference. First operand 204 states and 300 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:11,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:11,594 INFO L93 Difference]: Finished difference Result 410 states and 603 transitions. [2024-12-02 12:04:11,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:04:11,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2024-12-02 12:04:11,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:11,597 INFO L225 Difference]: With dead ends: 410 [2024-12-02 12:04:11,597 INFO L226 Difference]: Without dead ends: 209 [2024-12-02 12:04:11,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:04:11,599 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 108 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:11,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 529 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:04:11,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-12-02 12:04:11,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 204. [2024-12-02 12:04:11,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 177 states have (on average 1.4180790960451977) internal successors, (251), 177 states have internal predecessors, (251), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 12:04:11,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 299 transitions. [2024-12-02 12:04:11,618 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 299 transitions. Word has length 108 [2024-12-02 12:04:11,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:11,618 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 299 transitions. [2024-12-02 12:04:11,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:11,619 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 299 transitions. [2024-12-02 12:04:11,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 12:04:11,620 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:11,620 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:11,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 12:04:11,621 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:11,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:11,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1432431047, now seen corresponding path program 1 times [2024-12-02 12:04:11,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:11,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469994322] [2024-12-02 12:04:11,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:11,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:11,991 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:11,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:11,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469994322] [2024-12-02 12:04:11,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469994322] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:11,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:11,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:04:11,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736488386] [2024-12-02 12:04:11,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:11,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:04:11,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:11,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:04:11,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:04:11,993 INFO L87 Difference]: Start difference. First operand 204 states and 299 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:12,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:12,095 INFO L93 Difference]: Finished difference Result 309 states and 454 transitions. [2024-12-02 12:04:12,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:04:12,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2024-12-02 12:04:12,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:12,098 INFO L225 Difference]: With dead ends: 309 [2024-12-02 12:04:12,098 INFO L226 Difference]: Without dead ends: 206 [2024-12-02 12:04:12,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:04:12,099 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 5 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:12,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 524 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:04:12,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-12-02 12:04:12,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 205. [2024-12-02 12:04:12,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 178 states have (on average 1.4157303370786516) internal successors, (252), 178 states have internal predecessors, (252), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 12:04:12,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 300 transitions. [2024-12-02 12:04:12,113 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 300 transitions. Word has length 108 [2024-12-02 12:04:12,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:12,113 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 300 transitions. [2024-12-02 12:04:12,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:12,113 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 300 transitions. [2024-12-02 12:04:12,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 12:04:12,115 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:12,115 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:12,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 12:04:12,115 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:12,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:12,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1274188347, now seen corresponding path program 1 times [2024-12-02 12:04:12,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:12,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330633959] [2024-12-02 12:04:12,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:12,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:13,240 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:13,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:13,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330633959] [2024-12-02 12:04:13,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330633959] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:13,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:13,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 12:04:13,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694550679] [2024-12-02 12:04:13,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:13,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 12:04:13,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:13,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 12:04:13,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:04:13,242 INFO L87 Difference]: Start difference. First operand 205 states and 300 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:04:14,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:14,698 INFO L93 Difference]: Finished difference Result 425 states and 625 transitions. [2024-12-02 12:04:14,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 12:04:14,699 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2024-12-02 12:04:14,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:14,701 INFO L225 Difference]: With dead ends: 425 [2024-12-02 12:04:14,701 INFO L226 Difference]: Without dead ends: 321 [2024-12-02 12:04:14,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2024-12-02 12:04:14,702 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 452 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:14,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 1134 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 12:04:14,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-12-02 12:04:14,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 304. [2024-12-02 12:04:14,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 264 states have (on average 1.4166666666666667) internal successors, (374), 264 states have internal predecessors, (374), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 12:04:14,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 446 transitions. [2024-12-02 12:04:14,730 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 446 transitions. Word has length 108 [2024-12-02 12:04:14,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:14,731 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 446 transitions. [2024-12-02 12:04:14,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:04:14,731 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 446 transitions. [2024-12-02 12:04:14,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 12:04:14,732 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:14,732 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:14,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 12:04:14,733 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:14,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:14,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1532353785, now seen corresponding path program 1 times [2024-12-02 12:04:14,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:14,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427004662] [2024-12-02 12:04:14,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:14,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:15,245 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 12:04:15,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:15,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427004662] [2024-12-02 12:04:15,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427004662] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:04:15,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303960594] [2024-12-02 12:04:15,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:15,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:15,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:04:15,247 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:04:15,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 12:04:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:15,426 INFO L256 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 12:04:15,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:15,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 12:04:15,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2024-12-02 12:04:15,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 12:04:15,833 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 149 proven. 15 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-12-02 12:04:15,833 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:04:16,163 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 12:04:16,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303960594] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:04:16,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:04:16,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 10] total 26 [2024-12-02 12:04:16,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939332735] [2024-12-02 12:04:16,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:04:16,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 12:04:16,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:16,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 12:04:16,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=560, Unknown=0, NotChecked=0, Total=650 [2024-12-02 12:04:16,166 INFO L87 Difference]: Start difference. First operand 304 states and 446 transitions. Second operand has 26 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 25 states have internal predecessors, (88), 6 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 3 states have call predecessors, (24), 6 states have call successors, (24) [2024-12-02 12:04:17,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:17,287 INFO L93 Difference]: Finished difference Result 954 states and 1382 transitions. [2024-12-02 12:04:17,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-12-02 12:04:17,288 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 25 states have internal predecessors, (88), 6 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 3 states have call predecessors, (24), 6 states have call successors, (24) Word has length 108 [2024-12-02 12:04:17,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:17,292 INFO L225 Difference]: With dead ends: 954 [2024-12-02 12:04:17,292 INFO L226 Difference]: Without dead ends: 653 [2024-12-02 12:04:17,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=432, Invalid=2118, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 12:04:17,295 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 1056 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:17,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 1906 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:04:17,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2024-12-02 12:04:17,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 636. [2024-12-02 12:04:17,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 551 states have (on average 1.382940108892922) internal successors, (762), 551 states have internal predecessors, (762), 72 states have call successors, (72), 12 states have call predecessors, (72), 12 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 12:04:17,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 906 transitions. [2024-12-02 12:04:17,347 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 906 transitions. Word has length 108 [2024-12-02 12:04:17,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:17,347 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 906 transitions. [2024-12-02 12:04:17,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 25 states have internal predecessors, (88), 6 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 3 states have call predecessors, (24), 6 states have call successors, (24) [2024-12-02 12:04:17,348 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 906 transitions. [2024-12-02 12:04:17,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 12:04:17,349 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:17,349 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:17,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 12:04:17,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-12-02 12:04:17,550 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:17,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:17,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1608308428, now seen corresponding path program 1 times [2024-12-02 12:04:17,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:17,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841941108] [2024-12-02 12:04:17,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:17,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:19,075 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:19,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:19,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841941108] [2024-12-02 12:04:19,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841941108] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:19,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:19,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 12:04:19,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925087943] [2024-12-02 12:04:19,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:19,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 12:04:19,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:19,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 12:04:19,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:04:19,077 INFO L87 Difference]: Start difference. First operand 636 states and 906 transitions. Second operand has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:04:21,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:21,464 INFO L93 Difference]: Finished difference Result 2160 states and 3083 transitions. [2024-12-02 12:04:21,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 12:04:21,465 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-12-02 12:04:21,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:21,471 INFO L225 Difference]: With dead ends: 2160 [2024-12-02 12:04:21,471 INFO L226 Difference]: Without dead ends: 1949 [2024-12-02 12:04:21,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=203, Invalid=609, Unknown=0, NotChecked=0, Total=812 [2024-12-02 12:04:21,472 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 1552 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1552 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:21,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1552 Valid, 1084 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 12:04:21,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2024-12-02 12:04:21,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1511. [2024-12-02 12:04:21,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1342 states have (on average 1.397913561847988) internal successors, (1876), 1350 states have internal predecessors, (1876), 144 states have call successors, (144), 24 states have call predecessors, (144), 24 states have return successors, (144), 136 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 12:04:21,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 2164 transitions. [2024-12-02 12:04:21,607 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 2164 transitions. Word has length 109 [2024-12-02 12:04:21,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:21,607 INFO L471 AbstractCegarLoop]: Abstraction has 1511 states and 2164 transitions. [2024-12-02 12:04:21,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:04:21,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 2164 transitions. [2024-12-02 12:04:21,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 12:04:21,609 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:21,610 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:21,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 12:04:21,610 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:21,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:21,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1486208967, now seen corresponding path program 1 times [2024-12-02 12:04:21,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:21,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757668320] [2024-12-02 12:04:21,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:21,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:21,878 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:21,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:21,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757668320] [2024-12-02 12:04:21,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757668320] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:21,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:21,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:04:21,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719863912] [2024-12-02 12:04:21,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:21,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:04:21,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:21,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:04:21,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:04:21,880 INFO L87 Difference]: Start difference. First operand 1511 states and 2164 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:22,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:22,252 INFO L93 Difference]: Finished difference Result 2806 states and 4006 transitions. [2024-12-02 12:04:22,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:04:22,252 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-12-02 12:04:22,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:22,260 INFO L225 Difference]: With dead ends: 2806 [2024-12-02 12:04:22,260 INFO L226 Difference]: Without dead ends: 1666 [2024-12-02 12:04:22,262 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:04:22,262 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 139 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:22,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 772 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:04:22,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2024-12-02 12:04:22,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1658. [2024-12-02 12:04:22,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1658 states, 1459 states have (on average 1.3776559287183001) internal successors, (2010), 1467 states have internal predecessors, (2010), 168 states have call successors, (168), 30 states have call predecessors, (168), 30 states have return successors, (168), 160 states have call predecessors, (168), 168 states have call successors, (168) [2024-12-02 12:04:22,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1658 states to 1658 states and 2346 transitions. [2024-12-02 12:04:22,427 INFO L78 Accepts]: Start accepts. Automaton has 1658 states and 2346 transitions. Word has length 110 [2024-12-02 12:04:22,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:22,428 INFO L471 AbstractCegarLoop]: Abstraction has 1658 states and 2346 transitions. [2024-12-02 12:04:22,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:22,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1658 states and 2346 transitions. [2024-12-02 12:04:22,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 12:04:22,430 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:22,430 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:22,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 12:04:22,430 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:22,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:22,430 INFO L85 PathProgramCache]: Analyzing trace with hash -757277625, now seen corresponding path program 1 times [2024-12-02 12:04:22,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:22,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479586242] [2024-12-02 12:04:22,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:22,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:22,602 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:22,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:22,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479586242] [2024-12-02 12:04:22,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479586242] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:22,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:22,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:04:22,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836015779] [2024-12-02 12:04:22,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:22,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:04:22,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:22,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:04:22,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:04:22,604 INFO L87 Difference]: Start difference. First operand 1658 states and 2346 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:22,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:22,937 INFO L93 Difference]: Finished difference Result 3094 states and 4365 transitions. [2024-12-02 12:04:22,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:04:22,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-12-02 12:04:22,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:22,945 INFO L225 Difference]: With dead ends: 3094 [2024-12-02 12:04:22,946 INFO L226 Difference]: Without dead ends: 1807 [2024-12-02 12:04:22,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:04:22,948 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 151 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:22,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 483 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:04:22,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2024-12-02 12:04:23,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1799. [2024-12-02 12:04:23,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1573 states have (on average 1.371900826446281) internal successors, (2158), 1578 states have internal predecessors, (2158), 186 states have call successors, (186), 39 states have call predecessors, (186), 39 states have return successors, (186), 181 states have call predecessors, (186), 186 states have call successors, (186) [2024-12-02 12:04:23,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2530 transitions. [2024-12-02 12:04:23,118 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2530 transitions. Word has length 110 [2024-12-02 12:04:23,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:23,118 INFO L471 AbstractCegarLoop]: Abstraction has 1799 states and 2530 transitions. [2024-12-02 12:04:23,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:23,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2530 transitions. [2024-12-02 12:04:23,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 12:04:23,120 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:23,120 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:23,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 12:04:23,120 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:23,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:23,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1221526159, now seen corresponding path program 1 times [2024-12-02 12:04:23,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:23,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702694633] [2024-12-02 12:04:23,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:23,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:23,547 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:23,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:23,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702694633] [2024-12-02 12:04:23,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702694633] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:23,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:23,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:04:23,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049528385] [2024-12-02 12:04:23,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:23,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:04:23,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:23,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:04:23,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:04:23,548 INFO L87 Difference]: Start difference. First operand 1799 states and 2530 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:23,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:23,987 INFO L93 Difference]: Finished difference Result 3050 states and 4272 transitions. [2024-12-02 12:04:23,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:04:23,988 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-12-02 12:04:23,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:23,993 INFO L225 Difference]: With dead ends: 3050 [2024-12-02 12:04:23,993 INFO L226 Difference]: Without dead ends: 1840 [2024-12-02 12:04:23,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:04:23,995 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 294 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:23,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 1087 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:04:23,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states. [2024-12-02 12:04:24,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 1799. [2024-12-02 12:04:24,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1573 states have (on average 1.3693579148124602) internal successors, (2154), 1578 states have internal predecessors, (2154), 186 states have call successors, (186), 39 states have call predecessors, (186), 39 states have return successors, (186), 181 states have call predecessors, (186), 186 states have call successors, (186) [2024-12-02 12:04:24,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2526 transitions. [2024-12-02 12:04:24,135 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2526 transitions. Word has length 111 [2024-12-02 12:04:24,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:24,135 INFO L471 AbstractCegarLoop]: Abstraction has 1799 states and 2526 transitions. [2024-12-02 12:04:24,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:24,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2526 transitions. [2024-12-02 12:04:24,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 12:04:24,137 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:24,137 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:24,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 12:04:24,137 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:24,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:24,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1122395994, now seen corresponding path program 1 times [2024-12-02 12:04:24,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:24,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355394975] [2024-12-02 12:04:24,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:24,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:24,216 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:24,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:24,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355394975] [2024-12-02 12:04:24,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355394975] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:24,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:24,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:04:24,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587846230] [2024-12-02 12:04:24,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:24,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:04:24,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:24,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:04:24,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:04:24,217 INFO L87 Difference]: Start difference. First operand 1799 states and 2526 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:24,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:24,339 INFO L93 Difference]: Finished difference Result 3579 states and 5020 transitions. [2024-12-02 12:04:24,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:04:24,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-12-02 12:04:24,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:24,346 INFO L225 Difference]: With dead ends: 3579 [2024-12-02 12:04:24,346 INFO L226 Difference]: Without dead ends: 1783 [2024-12-02 12:04:24,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 12:04:24,349 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 105 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:24,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 552 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:04:24,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2024-12-02 12:04:24,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1209. [2024-12-02 12:04:24,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 1055 states have (on average 1.3582938388625592) internal successors, (1433), 1058 states have internal predecessors, (1433), 126 states have call successors, (126), 27 states have call predecessors, (126), 27 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-12-02 12:04:24,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1685 transitions. [2024-12-02 12:04:24,442 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1685 transitions. Word has length 111 [2024-12-02 12:04:24,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:24,442 INFO L471 AbstractCegarLoop]: Abstraction has 1209 states and 1685 transitions. [2024-12-02 12:04:24,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:24,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1685 transitions. [2024-12-02 12:04:24,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 12:04:24,444 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:24,444 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:24,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 12:04:24,444 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:24,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:24,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1897731394, now seen corresponding path program 1 times [2024-12-02 12:04:24,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:24,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601931086] [2024-12-02 12:04:24,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:24,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:24,537 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 12:04:24,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:24,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601931086] [2024-12-02 12:04:24,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601931086] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:04:24,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900961285] [2024-12-02 12:04:24,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:24,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:24,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:04:24,539 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:04:24,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 12:04:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:24,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 12:04:24,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:24,753 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:24,753 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:04:24,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900961285] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:24,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:04:24,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-12-02 12:04:24,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849555830] [2024-12-02 12:04:24,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:24,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:04:24,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:24,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:04:24,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:04:24,755 INFO L87 Difference]: Start difference. First operand 1209 states and 1685 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:24,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:24,845 INFO L93 Difference]: Finished difference Result 2451 states and 3415 transitions. [2024-12-02 12:04:24,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:04:24,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-12-02 12:04:24,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:24,849 INFO L225 Difference]: With dead ends: 2451 [2024-12-02 12:04:24,849 INFO L226 Difference]: Without dead ends: 1245 [2024-12-02 12:04:24,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:04:24,850 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:24,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 573 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:04:24,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2024-12-02 12:04:24,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1245. [2024-12-02 12:04:24,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 1091 states have (on average 1.3464711274060495) internal successors, (1469), 1094 states have internal predecessors, (1469), 126 states have call successors, (126), 27 states have call predecessors, (126), 27 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-12-02 12:04:24,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1721 transitions. [2024-12-02 12:04:24,940 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1721 transitions. Word has length 111 [2024-12-02 12:04:24,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:24,940 INFO L471 AbstractCegarLoop]: Abstraction has 1245 states and 1721 transitions. [2024-12-02 12:04:24,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:24,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1721 transitions. [2024-12-02 12:04:24,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 12:04:24,942 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:24,942 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:24,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 12:04:25,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 12:04:25,143 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:25,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:25,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1291983155, now seen corresponding path program 1 times [2024-12-02 12:04:25,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:25,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110225464] [2024-12-02 12:04:25,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:25,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:26,381 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:26,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:26,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110225464] [2024-12-02 12:04:26,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110225464] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:26,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:26,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 12:04:26,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834790113] [2024-12-02 12:04:26,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:26,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 12:04:26,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:26,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 12:04:26,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-12-02 12:04:26,382 INFO L87 Difference]: Start difference. First operand 1245 states and 1721 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:28,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:28,942 INFO L93 Difference]: Finished difference Result 3196 states and 4420 transitions. [2024-12-02 12:04:28,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 12:04:28,942 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-12-02 12:04:28,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:28,950 INFO L225 Difference]: With dead ends: 3196 [2024-12-02 12:04:28,950 INFO L226 Difference]: Without dead ends: 2141 [2024-12-02 12:04:28,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=136, Invalid=734, Unknown=0, NotChecked=0, Total=870 [2024-12-02 12:04:28,953 INFO L435 NwaCegarLoop]: 297 mSDtfsCounter, 554 mSDsluCounter, 2363 mSDsCounter, 0 mSdLazyCounter, 1753 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 2660 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:28,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 2660 Invalid, 1784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1753 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 12:04:28,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2141 states. [2024-12-02 12:04:29,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2141 to 1242. [2024-12-02 12:04:29,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 1088 states have (on average 1.3465073529411764) internal successors, (1465), 1091 states have internal predecessors, (1465), 126 states have call successors, (126), 27 states have call predecessors, (126), 27 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-12-02 12:04:29,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1717 transitions. [2024-12-02 12:04:29,113 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1717 transitions. Word has length 111 [2024-12-02 12:04:29,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:29,114 INFO L471 AbstractCegarLoop]: Abstraction has 1242 states and 1717 transitions. [2024-12-02 12:04:29,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:29,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1717 transitions. [2024-12-02 12:04:29,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 12:04:29,116 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:29,116 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:29,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 12:04:29,116 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:29,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:29,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1354874193, now seen corresponding path program 1 times [2024-12-02 12:04:29,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:29,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100380651] [2024-12-02 12:04:29,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:29,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:29,430 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:29,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:29,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100380651] [2024-12-02 12:04:29,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100380651] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:29,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:29,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:04:29,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464416892] [2024-12-02 12:04:29,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:29,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:04:29,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:29,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:04:29,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:04:29,432 INFO L87 Difference]: Start difference. First operand 1242 states and 1717 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:29,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:29,721 INFO L93 Difference]: Finished difference Result 2119 states and 2933 transitions. [2024-12-02 12:04:29,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:04:29,721 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-12-02 12:04:29,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:29,724 INFO L225 Difference]: With dead ends: 2119 [2024-12-02 12:04:29,724 INFO L226 Difference]: Without dead ends: 1026 [2024-12-02 12:04:29,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:04:29,726 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 257 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:29,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 684 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:04:29,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2024-12-02 12:04:29,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 703. [2024-12-02 12:04:29,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 615 states have (on average 1.3414634146341464) internal successors, (825), 617 states have internal predecessors, (825), 72 states have call successors, (72), 15 states have call predecessors, (72), 15 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 12:04:29,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 969 transitions. [2024-12-02 12:04:29,831 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 969 transitions. Word has length 111 [2024-12-02 12:04:29,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:29,832 INFO L471 AbstractCegarLoop]: Abstraction has 703 states and 969 transitions. [2024-12-02 12:04:29,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:29,832 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 969 transitions. [2024-12-02 12:04:29,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 12:04:29,833 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:29,833 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:29,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 12:04:29,833 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:29,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:29,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1867335442, now seen corresponding path program 1 times [2024-12-02 12:04:29,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:29,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893400189] [2024-12-02 12:04:29,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:29,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:29,962 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:29,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:29,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893400189] [2024-12-02 12:04:29,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893400189] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:29,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:29,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:04:29,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730010751] [2024-12-02 12:04:29,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:29,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:04:29,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:29,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:04:29,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:04:29,963 INFO L87 Difference]: Start difference. First operand 703 states and 969 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:30,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:30,130 INFO L93 Difference]: Finished difference Result 2019 states and 2792 transitions. [2024-12-02 12:04:30,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:04:30,131 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2024-12-02 12:04:30,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:30,137 INFO L225 Difference]: With dead ends: 2019 [2024-12-02 12:04:30,137 INFO L226 Difference]: Without dead ends: 1319 [2024-12-02 12:04:30,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:04:30,138 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 102 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:30,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 730 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:04:30,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2024-12-02 12:04:30,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1312. [2024-12-02 12:04:30,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1152 states have (on average 1.3411458333333333) internal successors, (1545), 1156 states have internal predecessors, (1545), 132 states have call successors, (132), 27 states have call predecessors, (132), 27 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2024-12-02 12:04:30,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1809 transitions. [2024-12-02 12:04:30,304 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1809 transitions. Word has length 111 [2024-12-02 12:04:30,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:30,305 INFO L471 AbstractCegarLoop]: Abstraction has 1312 states and 1809 transitions. [2024-12-02 12:04:30,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:30,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1809 transitions. [2024-12-02 12:04:30,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 12:04:30,306 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:30,306 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:30,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 12:04:30,306 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:30,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:30,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1565691096, now seen corresponding path program 1 times [2024-12-02 12:04:30,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:30,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967221020] [2024-12-02 12:04:30,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:30,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:30,715 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:30,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:30,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967221020] [2024-12-02 12:04:30,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967221020] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:30,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:30,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:04:30,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984535445] [2024-12-02 12:04:30,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:30,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:04:30,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:30,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:04:30,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:04:30,716 INFO L87 Difference]: Start difference. First operand 1312 states and 1809 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:31,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:31,251 INFO L93 Difference]: Finished difference Result 2625 states and 3618 transitions. [2024-12-02 12:04:31,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:04:31,251 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 112 [2024-12-02 12:04:31,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:31,257 INFO L225 Difference]: With dead ends: 2625 [2024-12-02 12:04:31,257 INFO L226 Difference]: Without dead ends: 1316 [2024-12-02 12:04:31,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:04:31,259 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 201 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:31,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 710 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:04:31,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2024-12-02 12:04:31,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1306. [2024-12-02 12:04:31,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 1146 states have (on average 1.3359511343804538) internal successors, (1531), 1150 states have internal predecessors, (1531), 132 states have call successors, (132), 27 states have call predecessors, (132), 27 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2024-12-02 12:04:31,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 1795 transitions. [2024-12-02 12:04:31,437 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 1795 transitions. Word has length 112 [2024-12-02 12:04:31,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:31,438 INFO L471 AbstractCegarLoop]: Abstraction has 1306 states and 1795 transitions. [2024-12-02 12:04:31,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:31,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 1795 transitions. [2024-12-02 12:04:31,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 12:04:31,439 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:31,439 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:31,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 12:04:31,439 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:31,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:31,440 INFO L85 PathProgramCache]: Analyzing trace with hash 978885082, now seen corresponding path program 1 times [2024-12-02 12:04:31,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:31,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792725866] [2024-12-02 12:04:31,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:31,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:31,833 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:31,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:31,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792725866] [2024-12-02 12:04:31,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792725866] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:31,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:31,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:04:31,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748932734] [2024-12-02 12:04:31,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:31,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:04:31,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:31,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:04:31,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:04:31,835 INFO L87 Difference]: Start difference. First operand 1306 states and 1795 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:32,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:32,447 INFO L93 Difference]: Finished difference Result 3123 states and 4310 transitions. [2024-12-02 12:04:32,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 12:04:32,447 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 112 [2024-12-02 12:04:32,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:32,452 INFO L225 Difference]: With dead ends: 3123 [2024-12-02 12:04:32,452 INFO L226 Difference]: Without dead ends: 2423 [2024-12-02 12:04:32,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:04:32,453 INFO L435 NwaCegarLoop]: 261 mSDtfsCounter, 445 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:32,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 1664 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:04:32,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2423 states. [2024-12-02 12:04:32,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2423 to 1930. [2024-12-02 12:04:32,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1930 states, 1698 states have (on average 1.3433451118963486) internal successors, (2281), 1704 states have internal predecessors, (2281), 192 states have call successors, (192), 39 states have call predecessors, (192), 39 states have return successors, (192), 186 states have call predecessors, (192), 192 states have call successors, (192) [2024-12-02 12:04:32,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1930 states to 1930 states and 2665 transitions. [2024-12-02 12:04:32,639 INFO L78 Accepts]: Start accepts. Automaton has 1930 states and 2665 transitions. Word has length 112 [2024-12-02 12:04:32,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:32,639 INFO L471 AbstractCegarLoop]: Abstraction has 1930 states and 2665 transitions. [2024-12-02 12:04:32,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:32,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1930 states and 2665 transitions. [2024-12-02 12:04:32,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 12:04:32,641 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:32,641 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:32,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 12:04:32,641 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:32,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:32,641 INFO L85 PathProgramCache]: Analyzing trace with hash -2075285022, now seen corresponding path program 1 times [2024-12-02 12:04:32,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:32,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425570398] [2024-12-02 12:04:32,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:32,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:33,116 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:33,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:33,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425570398] [2024-12-02 12:04:33,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425570398] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:33,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:33,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:04:33,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685662440] [2024-12-02 12:04:33,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:33,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:04:33,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:33,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:04:33,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:04:33,118 INFO L87 Difference]: Start difference. First operand 1930 states and 2665 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:33,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:33,813 INFO L93 Difference]: Finished difference Result 3358 states and 4629 transitions. [2024-12-02 12:04:33,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 12:04:33,814 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 112 [2024-12-02 12:04:33,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:33,821 INFO L225 Difference]: With dead ends: 3358 [2024-12-02 12:04:33,821 INFO L226 Difference]: Without dead ends: 2416 [2024-12-02 12:04:33,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:04:33,824 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 312 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:33,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 1260 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:04:33,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2024-12-02 12:04:34,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 1927. [2024-12-02 12:04:34,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1927 states, 1695 states have (on average 1.336283185840708) internal successors, (2265), 1701 states have internal predecessors, (2265), 192 states have call successors, (192), 39 states have call predecessors, (192), 39 states have return successors, (192), 186 states have call predecessors, (192), 192 states have call successors, (192) [2024-12-02 12:04:34,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1927 states to 1927 states and 2649 transitions. [2024-12-02 12:04:34,029 INFO L78 Accepts]: Start accepts. Automaton has 1927 states and 2649 transitions. Word has length 112 [2024-12-02 12:04:34,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:34,029 INFO L471 AbstractCegarLoop]: Abstraction has 1927 states and 2649 transitions. [2024-12-02 12:04:34,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:34,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1927 states and 2649 transitions. [2024-12-02 12:04:34,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 12:04:34,030 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:34,030 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:34,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 12:04:34,031 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:34,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:34,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1240867778, now seen corresponding path program 1 times [2024-12-02 12:04:34,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:34,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219902153] [2024-12-02 12:04:34,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:34,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:34,288 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:34,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:34,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219902153] [2024-12-02 12:04:34,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219902153] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:34,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:34,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:04:34,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763064113] [2024-12-02 12:04:34,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:34,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:04:34,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:34,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:04:34,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:04:34,289 INFO L87 Difference]: Start difference. First operand 1927 states and 2649 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:34,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:34,587 INFO L93 Difference]: Finished difference Result 3259 states and 4485 transitions. [2024-12-02 12:04:34,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:04:34,588 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-12-02 12:04:34,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:34,592 INFO L225 Difference]: With dead ends: 3259 [2024-12-02 12:04:34,592 INFO L226 Difference]: Without dead ends: 1946 [2024-12-02 12:04:34,593 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:04:34,593 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 92 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:34,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 628 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:04:34,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2024-12-02 12:04:34,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1935. [2024-12-02 12:04:34,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1935 states, 1703 states have (on average 1.3347034644744569) internal successors, (2273), 1709 states have internal predecessors, (2273), 192 states have call successors, (192), 39 states have call predecessors, (192), 39 states have return successors, (192), 186 states have call predecessors, (192), 192 states have call successors, (192) [2024-12-02 12:04:34,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2657 transitions. [2024-12-02 12:04:34,733 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2657 transitions. Word has length 113 [2024-12-02 12:04:34,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:34,733 INFO L471 AbstractCegarLoop]: Abstraction has 1935 states and 2657 transitions. [2024-12-02 12:04:34,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:34,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2657 transitions. [2024-12-02 12:04:34,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 12:04:34,735 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:34,735 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:34,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 12:04:34,735 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:34,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:34,736 INFO L85 PathProgramCache]: Analyzing trace with hash -453386666, now seen corresponding path program 1 times [2024-12-02 12:04:34,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:34,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723290892] [2024-12-02 12:04:34,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:34,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:35,185 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:35,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:35,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723290892] [2024-12-02 12:04:35,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723290892] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:35,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:35,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:04:35,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344459123] [2024-12-02 12:04:35,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:35,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:04:35,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:35,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:04:35,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:04:35,187 INFO L87 Difference]: Start difference. First operand 1935 states and 2657 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:04:35,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:35,955 INFO L93 Difference]: Finished difference Result 4122 states and 5666 transitions. [2024-12-02 12:04:35,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 12:04:35,956 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-12-02 12:04:35,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:35,967 INFO L225 Difference]: With dead ends: 4122 [2024-12-02 12:04:35,967 INFO L226 Difference]: Without dead ends: 2801 [2024-12-02 12:04:35,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-12-02 12:04:35,970 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 447 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:35,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 1151 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:04:35,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2024-12-02 12:04:36,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 1740. [2024-12-02 12:04:36,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1740 states, 1529 states have (on average 1.3335513407455855) internal successors, (2039), 1534 states have internal predecessors, (2039), 174 states have call successors, (174), 36 states have call predecessors, (174), 36 states have return successors, (174), 169 states have call predecessors, (174), 174 states have call successors, (174) [2024-12-02 12:04:36,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1740 states to 1740 states and 2387 transitions. [2024-12-02 12:04:36,120 INFO L78 Accepts]: Start accepts. Automaton has 1740 states and 2387 transitions. Word has length 113 [2024-12-02 12:04:36,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:36,121 INFO L471 AbstractCegarLoop]: Abstraction has 1740 states and 2387 transitions. [2024-12-02 12:04:36,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:04:36,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1740 states and 2387 transitions. [2024-12-02 12:04:36,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 12:04:36,122 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:36,122 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:36,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 12:04:36,123 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:36,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:36,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1373369687, now seen corresponding path program 1 times [2024-12-02 12:04:36,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:36,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890823494] [2024-12-02 12:04:36,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:36,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:36,217 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-12-02 12:04:36,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:36,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890823494] [2024-12-02 12:04:36,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890823494] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:04:36,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889751889] [2024-12-02 12:04:36,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:36,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:36,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:04:36,219 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:04:36,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 12:04:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:36,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 12:04:36,408 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:36,423 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:36,423 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:04:36,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889751889] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:36,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:04:36,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-12-02 12:04:36,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868311063] [2024-12-02 12:04:36,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:36,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:04:36,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:36,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:04:36,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:04:36,424 INFO L87 Difference]: Start difference. First operand 1740 states and 2387 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:36,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:36,606 INFO L93 Difference]: Finished difference Result 3528 states and 4839 transitions. [2024-12-02 12:04:36,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:04:36,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-12-02 12:04:36,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:36,613 INFO L225 Difference]: With dead ends: 3528 [2024-12-02 12:04:36,613 INFO L226 Difference]: Without dead ends: 1791 [2024-12-02 12:04:36,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:04:36,617 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:36,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 572 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:04:36,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2024-12-02 12:04:36,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1791. [2024-12-02 12:04:36,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1791 states, 1580 states have (on average 1.3227848101265822) internal successors, (2090), 1585 states have internal predecessors, (2090), 174 states have call successors, (174), 36 states have call predecessors, (174), 36 states have return successors, (174), 169 states have call predecessors, (174), 174 states have call successors, (174) [2024-12-02 12:04:36,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1791 states to 1791 states and 2438 transitions. [2024-12-02 12:04:36,744 INFO L78 Accepts]: Start accepts. Automaton has 1791 states and 2438 transitions. Word has length 113 [2024-12-02 12:04:36,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:36,744 INFO L471 AbstractCegarLoop]: Abstraction has 1791 states and 2438 transitions. [2024-12-02 12:04:36,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:36,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1791 states and 2438 transitions. [2024-12-02 12:04:36,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 12:04:36,746 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:36,746 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:36,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 12:04:36,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-12-02 12:04:36,947 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:36,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:36,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1912099421, now seen corresponding path program 1 times [2024-12-02 12:04:36,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:36,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29165083] [2024-12-02 12:04:36,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:36,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:36,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:37,988 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:37,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:37,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29165083] [2024-12-02 12:04:37,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29165083] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:37,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:37,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 12:04:37,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677597072] [2024-12-02 12:04:37,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:37,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 12:04:37,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:37,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 12:04:37,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:04:37,990 INFO L87 Difference]: Start difference. First operand 1791 states and 2438 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:40,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:40,917 INFO L93 Difference]: Finished difference Result 3298 states and 4482 transitions. [2024-12-02 12:04:40,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 12:04:40,918 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-12-02 12:04:40,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:40,922 INFO L225 Difference]: With dead ends: 3298 [2024-12-02 12:04:40,923 INFO L226 Difference]: Without dead ends: 2340 [2024-12-02 12:04:40,924 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2024-12-02 12:04:40,924 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 588 mSDsluCounter, 1312 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 1538 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:40,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 1538 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 12:04:40,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2340 states. [2024-12-02 12:04:41,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2340 to 1805. [2024-12-02 12:04:41,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1805 states, 1594 states have (on average 1.3212045169385194) internal successors, (2106), 1599 states have internal predecessors, (2106), 174 states have call successors, (174), 36 states have call predecessors, (174), 36 states have return successors, (174), 169 states have call predecessors, (174), 174 states have call successors, (174) [2024-12-02 12:04:41,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 2454 transitions. [2024-12-02 12:04:41,097 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 2454 transitions. Word has length 113 [2024-12-02 12:04:41,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:41,098 INFO L471 AbstractCegarLoop]: Abstraction has 1805 states and 2454 transitions. [2024-12-02 12:04:41,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:41,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 2454 transitions. [2024-12-02 12:04:41,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 12:04:41,099 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:41,099 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:41,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 12:04:41,099 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:41,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:41,099 INFO L85 PathProgramCache]: Analyzing trace with hash 868970119, now seen corresponding path program 1 times [2024-12-02 12:04:41,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:41,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464229388] [2024-12-02 12:04:41,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:41,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:41,289 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:41,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:41,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464229388] [2024-12-02 12:04:41,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464229388] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:41,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:41,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:04:41,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165738295] [2024-12-02 12:04:41,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:41,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:04:41,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:41,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:04:41,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:04:41,290 INFO L87 Difference]: Start difference. First operand 1805 states and 2454 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:41,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:41,637 INFO L93 Difference]: Finished difference Result 3234 states and 4399 transitions. [2024-12-02 12:04:41,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:04:41,637 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-12-02 12:04:41,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:41,641 INFO L225 Difference]: With dead ends: 3234 [2024-12-02 12:04:41,641 INFO L226 Difference]: Without dead ends: 1830 [2024-12-02 12:04:41,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:04:41,643 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 132 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:41,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 563 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:04:41,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2024-12-02 12:04:41,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 1805. [2024-12-02 12:04:41,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1805 states, 1594 states have (on average 1.3186951066499373) internal successors, (2102), 1599 states have internal predecessors, (2102), 174 states have call successors, (174), 36 states have call predecessors, (174), 36 states have return successors, (174), 169 states have call predecessors, (174), 174 states have call successors, (174) [2024-12-02 12:04:41,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 2450 transitions. [2024-12-02 12:04:41,782 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 2450 transitions. Word has length 113 [2024-12-02 12:04:41,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:41,783 INFO L471 AbstractCegarLoop]: Abstraction has 1805 states and 2450 transitions. [2024-12-02 12:04:41,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:41,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 2450 transitions. [2024-12-02 12:04:41,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 12:04:41,784 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:41,784 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:41,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 12:04:41,784 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:41,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:41,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1865350813, now seen corresponding path program 1 times [2024-12-02 12:04:41,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:41,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984692279] [2024-12-02 12:04:41,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:41,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:42,301 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:42,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:42,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984692279] [2024-12-02 12:04:42,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984692279] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:42,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:42,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:04:42,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625319137] [2024-12-02 12:04:42,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:42,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:04:42,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:42,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:04:42,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:04:42,302 INFO L87 Difference]: Start difference. First operand 1805 states and 2450 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:42,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:42,979 INFO L93 Difference]: Finished difference Result 3159 states and 4283 transitions. [2024-12-02 12:04:42,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:04:42,979 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 114 [2024-12-02 12:04:42,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:42,983 INFO L225 Difference]: With dead ends: 3159 [2024-12-02 12:04:42,983 INFO L226 Difference]: Without dead ends: 1981 [2024-12-02 12:04:42,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:04:42,984 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 226 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:42,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 1248 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:04:42,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1981 states. [2024-12-02 12:04:43,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1981 to 1797. [2024-12-02 12:04:43,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1797 states, 1586 states have (on average 1.3165195460277428) internal successors, (2088), 1591 states have internal predecessors, (2088), 174 states have call successors, (174), 36 states have call predecessors, (174), 36 states have return successors, (174), 169 states have call predecessors, (174), 174 states have call successors, (174) [2024-12-02 12:04:43,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 2436 transitions. [2024-12-02 12:04:43,150 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 2436 transitions. Word has length 114 [2024-12-02 12:04:43,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:43,150 INFO L471 AbstractCegarLoop]: Abstraction has 1797 states and 2436 transitions. [2024-12-02 12:04:43,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:43,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 2436 transitions. [2024-12-02 12:04:43,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 12:04:43,151 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:43,152 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:43,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 12:04:43,152 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:43,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:43,152 INFO L85 PathProgramCache]: Analyzing trace with hash 837225436, now seen corresponding path program 1 times [2024-12-02 12:04:43,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:43,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987322253] [2024-12-02 12:04:43,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:43,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:43,242 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:43,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:43,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987322253] [2024-12-02 12:04:43,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987322253] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:43,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:43,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:04:43,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136272909] [2024-12-02 12:04:43,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:43,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:04:43,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:43,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:04:43,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:04:43,243 INFO L87 Difference]: Start difference. First operand 1797 states and 2436 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:43,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:43,402 INFO L93 Difference]: Finished difference Result 3194 states and 4329 transitions. [2024-12-02 12:04:43,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:04:43,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 114 [2024-12-02 12:04:43,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:43,407 INFO L225 Difference]: With dead ends: 3194 [2024-12-02 12:04:43,407 INFO L226 Difference]: Without dead ends: 1790 [2024-12-02 12:04:43,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 12:04:43,408 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 93 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:43,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 519 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:04:43,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2024-12-02 12:04:43,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1788. [2024-12-02 12:04:43,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1788 states, 1577 states have (on average 1.3138871274571973) internal successors, (2072), 1582 states have internal predecessors, (2072), 174 states have call successors, (174), 36 states have call predecessors, (174), 36 states have return successors, (174), 169 states have call predecessors, (174), 174 states have call successors, (174) [2024-12-02 12:04:43,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1788 states to 1788 states and 2420 transitions. [2024-12-02 12:04:43,552 INFO L78 Accepts]: Start accepts. Automaton has 1788 states and 2420 transitions. Word has length 114 [2024-12-02 12:04:43,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:43,552 INFO L471 AbstractCegarLoop]: Abstraction has 1788 states and 2420 transitions. [2024-12-02 12:04:43,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:43,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1788 states and 2420 transitions. [2024-12-02 12:04:43,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 12:04:43,553 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:43,553 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:43,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 12:04:43,553 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:43,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:43,553 INFO L85 PathProgramCache]: Analyzing trace with hash -353264335, now seen corresponding path program 1 times [2024-12-02 12:04:43,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:43,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949667436] [2024-12-02 12:04:43,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:43,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:43,694 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:43,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:43,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949667436] [2024-12-02 12:04:43,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949667436] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:43,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:43,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:04:43,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235118971] [2024-12-02 12:04:43,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:43,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:04:43,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:43,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:04:43,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:04:43,695 INFO L87 Difference]: Start difference. First operand 1788 states and 2420 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:43,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:43,988 INFO L93 Difference]: Finished difference Result 2779 states and 3767 transitions. [2024-12-02 12:04:43,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:04:43,989 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 114 [2024-12-02 12:04:43,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:43,995 INFO L225 Difference]: With dead ends: 2779 [2024-12-02 12:04:43,995 INFO L226 Difference]: Without dead ends: 1807 [2024-12-02 12:04:43,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:04:43,997 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 130 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:43,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 694 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:04:43,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2024-12-02 12:04:44,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1796. [2024-12-02 12:04:44,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1796 states, 1585 states have (on average 1.3123028391167193) internal successors, (2080), 1590 states have internal predecessors, (2080), 174 states have call successors, (174), 36 states have call predecessors, (174), 36 states have return successors, (174), 169 states have call predecessors, (174), 174 states have call successors, (174) [2024-12-02 12:04:44,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1796 states to 1796 states and 2428 transitions. [2024-12-02 12:04:44,216 INFO L78 Accepts]: Start accepts. Automaton has 1796 states and 2428 transitions. Word has length 114 [2024-12-02 12:04:44,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:44,217 INFO L471 AbstractCegarLoop]: Abstraction has 1796 states and 2428 transitions. [2024-12-02 12:04:44,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:44,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1796 states and 2428 transitions. [2024-12-02 12:04:44,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 12:04:44,219 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:44,219 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:44,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 12:04:44,219 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:44,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:44,219 INFO L85 PathProgramCache]: Analyzing trace with hash -576900473, now seen corresponding path program 1 times [2024-12-02 12:04:44,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:44,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061444435] [2024-12-02 12:04:44,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:44,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:44,793 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:44,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:44,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061444435] [2024-12-02 12:04:44,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061444435] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:44,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:44,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:04:44,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300388092] [2024-12-02 12:04:44,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:44,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:04:44,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:44,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:04:44,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:04:44,794 INFO L87 Difference]: Start difference. First operand 1796 states and 2428 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:04:45,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:45,330 INFO L93 Difference]: Finished difference Result 2939 states and 3973 transitions. [2024-12-02 12:04:45,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:04:45,331 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2024-12-02 12:04:45,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:45,334 INFO L225 Difference]: With dead ends: 2939 [2024-12-02 12:04:45,335 INFO L226 Difference]: Without dead ends: 1959 [2024-12-02 12:04:45,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-12-02 12:04:45,336 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 484 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:45,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 731 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:04:45,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1959 states. [2024-12-02 12:04:45,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1959 to 1365. [2024-12-02 12:04:45,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1205 states have (on average 1.307883817427386) internal successors, (1576), 1209 states have internal predecessors, (1576), 132 states have call successors, (132), 27 states have call predecessors, (132), 27 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2024-12-02 12:04:45,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1840 transitions. [2024-12-02 12:04:45,464 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1840 transitions. Word has length 114 [2024-12-02 12:04:45,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:45,464 INFO L471 AbstractCegarLoop]: Abstraction has 1365 states and 1840 transitions. [2024-12-02 12:04:45,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:04:45,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1840 transitions. [2024-12-02 12:04:45,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 12:04:45,464 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:45,464 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:45,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 12:04:45,465 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:45,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:45,465 INFO L85 PathProgramCache]: Analyzing trace with hash 327205040, now seen corresponding path program 1 times [2024-12-02 12:04:45,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:45,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985889820] [2024-12-02 12:04:45,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:45,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:45,543 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:04:45,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:45,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985889820] [2024-12-02 12:04:45,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985889820] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:45,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:45,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:04:45,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796020018] [2024-12-02 12:04:45,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:45,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:04:45,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:45,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:04:45,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:04:45,544 INFO L87 Difference]: Start difference. First operand 1365 states and 1840 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:45,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:45,673 INFO L93 Difference]: Finished difference Result 2266 states and 3059 transitions. [2024-12-02 12:04:45,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:04:45,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-12-02 12:04:45,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:45,677 INFO L225 Difference]: With dead ends: 2266 [2024-12-02 12:04:45,677 INFO L226 Difference]: Without dead ends: 896 [2024-12-02 12:04:45,679 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 12:04:45,679 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:45,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 290 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:04:45,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2024-12-02 12:04:45,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 892. [2024-12-02 12:04:45,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 792 states have (on average 1.3068181818181819) internal successors, (1035), 796 states have internal predecessors, (1035), 84 states have call successors, (84), 15 states have call predecessors, (84), 15 states have return successors, (84), 80 states have call predecessors, (84), 84 states have call successors, (84) [2024-12-02 12:04:45,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1203 transitions. [2024-12-02 12:04:45,772 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1203 transitions. Word has length 115 [2024-12-02 12:04:45,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:45,772 INFO L471 AbstractCegarLoop]: Abstraction has 892 states and 1203 transitions. [2024-12-02 12:04:45,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:04:45,772 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1203 transitions. [2024-12-02 12:04:45,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 12:04:45,772 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:45,772 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:45,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 12:04:45,772 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:45,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:45,773 INFO L85 PathProgramCache]: Analyzing trace with hash -158264295, now seen corresponding path program 1 times [2024-12-02 12:04:45,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:45,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073001871] [2024-12-02 12:04:45,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:45,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:04:45,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [679575132] [2024-12-02 12:04:45,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:45,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:45,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:04:45,820 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:04:45,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 12:04:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 12:04:46,104 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 12:04:46,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 12:04:46,262 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 12:04:46,263 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 12:04:46,263 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 12:04:46,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 12:04:46,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:04:46,468 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] [2024-12-02 12:04:46,526 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 12:04:46,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:04:46 BoogieIcfgContainer [2024-12-02 12:04:46,529 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 12:04:46,530 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 12:04:46,530 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 12:04:46,530 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 12:04:46,530 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:04:09" (3/4) ... [2024-12-02 12:04:46,532 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 12:04:46,533 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 12:04:46,534 INFO L158 Benchmark]: Toolchain (without parser) took 38443.77ms. Allocated memory was 142.6MB in the beginning and 469.8MB in the end (delta: 327.2MB). Free memory was 116.8MB in the beginning and 369.8MB in the end (delta: -253.0MB). Peak memory consumption was 77.8MB. Max. memory is 16.1GB. [2024-12-02 12:04:46,534 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:04:46,534 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.85ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 102.0MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 12:04:46,534 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.89ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 98.1MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:04:46,534 INFO L158 Benchmark]: Boogie Preprocessor took 64.66ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 93.7MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 12:04:46,535 INFO L158 Benchmark]: RCFGBuilder took 603.80ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 58.1MB in the end (delta: 35.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-02 12:04:46,535 INFO L158 Benchmark]: TraceAbstraction took 37488.42ms. Allocated memory was 142.6MB in the beginning and 469.8MB in the end (delta: 327.2MB). Free memory was 57.5MB in the beginning and 369.8MB in the end (delta: -312.3MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2024-12-02 12:04:46,535 INFO L158 Benchmark]: Witness Printer took 3.60ms. Allocated memory is still 469.8MB. Free memory was 369.8MB in the beginning and 369.8MB in the end (delta: 41.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 12:04:46,536 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.85ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 102.0MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.89ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 98.1MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 64.66ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 93.7MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 603.80ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 58.1MB in the end (delta: 35.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 37488.42ms. Allocated memory was 142.6MB in the beginning and 469.8MB in the end (delta: 327.2MB). Free memory was 57.5MB in the beginning and 369.8MB in the end (delta: -312.3MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Witness Printer took 3.60ms. Allocated memory is still 469.8MB. Free memory was 369.8MB in the beginning and 369.8MB in the end (delta: 41.0kB). Peak memory consumption was 8.4MB. 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 75, overapproximation of someBinaryFLOATComparisonOperation at line 73, overapproximation of someBinaryFLOATComparisonOperation at line 73, overapproximation of someBinaryFLOATComparisonOperation at line 75, overapproximation of someBinaryFLOATComparisonOperation at line 94, overapproximation of bitwiseOr at line 59, overapproximation of bitwiseOr at line 94, overapproximation of bitwiseAnd at line 51. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 0 }; [L25-L27] float float_Array_0[3] = { 5.8, 0.5, 99.25 }; [L25-L27] float float_Array_0[3] = { 5.8, 0.5, 99.25 }; [L25-L27] float float_Array_0[3] = { 5.8, 0.5, 99.25 }; [L25-L27] float float_Array_0[3] = { 5.8, 0.5, 99.25 }; [L28-L30] signed short int signed_short_int_Array_0[2] = { 5, 18477 }; [L28-L30] signed short int signed_short_int_Array_0[2] = { 5, 18477 }; [L28-L30] signed short int signed_short_int_Array_0[2] = { 5, 18477 }; [L31-L33] unsigned char unsigned_char_Array_0[3] = { 50, 1, 16 }; [L31-L33] unsigned char unsigned_char_Array_0[3] = { 50, 1, 16 }; [L31-L33] unsigned char unsigned_char_Array_0[3] = { 50, 1, 16 }; [L31-L33] unsigned char unsigned_char_Array_0[3] = { 50, 1, 16 }; [L34-L36] unsigned long int unsigned_long_int_Array_0[1] = { 256 }; [L34-L36] unsigned long int unsigned_long_int_Array_0[1] = { 256 }; [L37] unsigned char last_1_unsigned_char_Array_0_2_ = 16; [L38] unsigned long int last_1_unsigned_long_int_Array_0_0_ = 256; VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=0, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L98] isInitial = 1 [L99] FCALL initially() [L101] CALL updateLastVariables() [L90] EXPR unsigned_char_Array_0[2] [L90] last_1_unsigned_char_Array_0_2_ = unsigned_char_Array_0[2] [L91] EXPR unsigned_long_int_Array_0[0] [L91] last_1_unsigned_long_int_Array_0_0_ = unsigned_long_int_Array_0[0] [L101] RET updateLastVariables() [L102] CALL updateVariables() [L69] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L70] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L70] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L70] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L71] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L71] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L71] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L72] float_Array_0[0] = __VERIFIER_nondet_float() [L73] EXPR float_Array_0[0] [L73] EXPR float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L73] EXPR float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F [L73] EXPR float_Array_0[0] [L73] EXPR float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L73] EXPR (float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L73] EXPR (float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L73] CALL assume_abort_if_not((float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L73] RET assume_abort_if_not((float_Array_0[0] >= -922337.2036854765600e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854765600e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L74] float_Array_0[1] = __VERIFIER_nondet_float() [L75] EXPR float_Array_0[1] [L75] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L75] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F [L75] EXPR float_Array_0[1] [L75] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L75] EXPR (float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L75] EXPR (float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L75] CALL assume_abort_if_not((float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L75] RET assume_abort_if_not((float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L76] signed_short_int_Array_0[0] = __VERIFIER_nondet_short() [L77] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L77] CALL assume_abort_if_not(signed_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L77] RET assume_abort_if_not(signed_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L78] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L78] CALL assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L78] RET assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L79] signed_short_int_Array_0[1] = __VERIFIER_nondet_short() [L80] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L80] CALL assume_abort_if_not(signed_short_int_Array_0[1] >= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L80] RET assume_abort_if_not(signed_short_int_Array_0[1] >= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L81] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L81] CALL assume_abort_if_not(signed_short_int_Array_0[1] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L81] RET assume_abort_if_not(signed_short_int_Array_0[1] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L82] unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L83] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L83] CALL assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L83] RET assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L84] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L84] CALL assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L84] RET assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L85] unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L86] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L86] CALL assume_abort_if_not(unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L86] RET assume_abort_if_not(unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L87] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L87] CALL assume_abort_if_not(unsigned_char_Array_0[1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L87] RET assume_abort_if_not(unsigned_char_Array_0[1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L102] RET updateVariables() [L103] CALL step() [L42] EXPR signed_short_int_Array_0[0] [L42] signed short int stepLocal_3 = signed_short_int_Array_0[0]; [L43] unsigned long int stepLocal_2 = last_1_unsigned_long_int_Array_0_0_; VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, stepLocal_2=256, stepLocal_3=257, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L44] COND FALSE !(last_1_unsigned_long_int_Array_0_0_ > stepLocal_3) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L51] EXPR unsigned_char_Array_0[2] [L51] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L51] EXPR unsigned_char_Array_0[2] & signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, stepLocal_2=256, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L51] EXPR unsigned_char_Array_0[0] [L51] EXPR unsigned_char_Array_0[2] [L51] EXPR unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L51] COND FALSE !((unsigned_char_Array_0[2] & signed_short_int_Array_0[1]) > ((unsigned_char_Array_0[0] * last_1_unsigned_long_int_Array_0_0_) * (unsigned_char_Array_0[2] + unsigned_char_Array_0[2]))) [L56] EXPR signed_short_int_Array_0[1] [L56] unsigned_long_int_Array_0[0] = signed_short_int_Array_0[1] [L58] EXPR unsigned_char_Array_0[2] [L58] unsigned char stepLocal_1 = unsigned_char_Array_0[2]; [L59] EXPR unsigned_char_Array_0[2] [L59] EXPR unsigned_char_Array_0[2] [L59] EXPR unsigned_long_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L59] EXPR ((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]) [L59] EXPR unsigned_long_int_Array_0[0] [L59] EXPR ((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, stepLocal_1=16, stepLocal_2=256, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L59] EXPR unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, stepLocal_1=16, stepLocal_2=256, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L59] unsigned long int stepLocal_0 = unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]))); [L60] EXPR unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L60] COND FALSE !(stepLocal_0 != unsigned_char_Array_0[2]) [L65] float_Array_0[2] = 10.5f VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L103] RET step() [L104] CALL, EXPR property() [L94] EXPR unsigned_char_Array_0[2] [L94] EXPR unsigned_char_Array_0[2] [L94] EXPR unsigned_long_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L94] EXPR ((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]) [L94] EXPR unsigned_long_int_Array_0[0] [L94] EXPR ((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L94] EXPR unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L94] EXPR unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L94] EXPR ((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f)) [L94] EXPR float_Array_0[2] [L94] EXPR ((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f)) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L94] EXPR (((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f))) && ((last_1_unsigned_long_int_Array_0_0_ > signed_short_int_Array_0[0]) ? ((((last_1_unsigned_char_Array_0_2_ - signed_short_int_Array_0[0]) + signed_short_int_Array_0[1]) > last_1_unsigned_long_int_Array_0_0_) ? (unsigned_char_Array_0[2] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[0]) : (unsigned_char_Array_0[1]))))) : (unsigned_char_Array_0[2] == ((unsigned char) unsigned_char_Array_0[0]))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L94] EXPR (((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f))) && ((last_1_unsigned_long_int_Array_0_0_ > signed_short_int_Array_0[0]) ? ((((last_1_unsigned_char_Array_0_2_ - signed_short_int_Array_0[0]) + signed_short_int_Array_0[1]) > last_1_unsigned_long_int_Array_0_0_) ? (unsigned_char_Array_0[2] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[0]) : (unsigned_char_Array_0[1]))))) : (unsigned_char_Array_0[2] == ((unsigned char) unsigned_char_Array_0[0]))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L94] EXPR ((((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f))) && ((last_1_unsigned_long_int_Array_0_0_ > signed_short_int_Array_0[0]) ? ((((last_1_unsigned_char_Array_0_2_ - signed_short_int_Array_0[0]) + signed_short_int_Array_0[1]) > last_1_unsigned_long_int_Array_0_0_) ? (unsigned_char_Array_0[2] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[0]) : (unsigned_char_Array_0[1]))))) : (unsigned_char_Array_0[2] == ((unsigned char) unsigned_char_Array_0[0]))) : 1)) && (((unsigned_char_Array_0[2] & signed_short_int_Array_0[1]) > ((unsigned_char_Array_0[0] * last_1_unsigned_long_int_Array_0_0_) * (unsigned_char_Array_0[2] + unsigned_char_Array_0[2]))) ? ((BOOL_unsigned_char_Array_0[0] && (float_Array_0[0] > float_Array_0[1])) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1])) : 1) : (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L94] EXPR ((((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f))) && ((last_1_unsigned_long_int_Array_0_0_ > signed_short_int_Array_0[0]) ? ((((last_1_unsigned_char_Array_0_2_ - signed_short_int_Array_0[0]) + signed_short_int_Array_0[1]) > last_1_unsigned_long_int_Array_0_0_) ? (unsigned_char_Array_0[2] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[0]) : (unsigned_char_Array_0[1]))))) : (unsigned_char_Array_0[2] == ((unsigned char) unsigned_char_Array_0[0]))) : 1)) && (((unsigned_char_Array_0[2] & signed_short_int_Array_0[1]) > ((unsigned_char_Array_0[0] * last_1_unsigned_long_int_Array_0_0_) * (unsigned_char_Array_0[2] + unsigned_char_Array_0[2]))) ? ((BOOL_unsigned_char_Array_0[0] && (float_Array_0[0] > float_Array_0[1])) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1])) : 1) : (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L94-L95] return ((((unsigned_char_Array_0[2] ^ ((((unsigned_char_Array_0[2]) > (unsigned_long_int_Array_0[0])) ? (unsigned_char_Array_0[2]) : (unsigned_long_int_Array_0[0])))) != unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[2] == (unsigned_char_Array_0[2] - (signed_short_int_Array_0[1] - unsigned_char_Array_0[2]))) ? (float_Array_0[2] == ((float) ((((float_Array_0[0]) < (float_Array_0[1])) ? (float_Array_0[0]) : (float_Array_0[1]))))) : 1) : (float_Array_0[2] == ((float) 10.5f))) && ((last_1_unsigned_long_int_Array_0_0_ > signed_short_int_Array_0[0]) ? ((((last_1_unsigned_char_Array_0_2_ - signed_short_int_Array_0[0]) + signed_short_int_Array_0[1]) > last_1_unsigned_long_int_Array_0_0_) ? (unsigned_char_Array_0[2] == ((unsigned char) ((((unsigned_char_Array_0[0]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[0]) : (unsigned_char_Array_0[1]))))) : (unsigned_char_Array_0[2] == ((unsigned char) unsigned_char_Array_0[0]))) : 1)) && (((unsigned_char_Array_0[2] & signed_short_int_Array_0[1]) > ((unsigned_char_Array_0[0] * last_1_unsigned_long_int_Array_0_0_) * (unsigned_char_Array_0[2] + unsigned_char_Array_0[2]))) ? ((BOOL_unsigned_char_Array_0[0] && (float_Array_0[0] > float_Array_0[1])) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1])) : 1) : (unsigned_long_int_Array_0[0] == ((unsigned long int) signed_short_int_Array_0[1]))) ; [L104] RET, EXPR property() [L104] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_2_=16, last_1_unsigned_long_int_Array_0_0_=256, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 37.4s, OverallIterations: 30, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 18.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8046 SdHoareTripleChecker+Valid, 10.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8040 mSDsluCounter, 25326 SdHoareTripleChecker+Invalid, 9.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20194 mSDsCounter, 892 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9993 IncrementalHoareTripleChecker+Invalid, 10885 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 892 mSolverCounterUnsat, 5132 mSDtfsCounter, 9993 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 942 GetRequests, 640 SyntacticMatches, 1 SemanticMatches, 301 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1033 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1935occurred in iteration=20, InterpolantAutomatonStates: 253, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.4s AutomataMinimizationTime, 29 MinimizatonAttempts, 5762 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 11.9s InterpolantComputationTime, 3889 NumberOfCodeBlocks, 3889 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 3733 ConstructedInterpolants, 0 QuantifiedInterpolants, 16168 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1635 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 34 InterpolantComputations, 28 PerfectInterpolantSequences, 8843/8976 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 12:04:46,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/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_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/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 34c00af4b4663198525b0b7086d994deb20901b2017b1e6c2fe4ceb71d985d42 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:04:48,378 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:04:48,460 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 12:04:48,466 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:04:48,467 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:04:48,488 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:04:48,489 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:04:48,489 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:04:48,489 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:04:48,489 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:04:48,489 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:04:48,490 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:04:48,490 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:04:48,490 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:04:48,490 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:04:48,490 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:04:48,490 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:04:48,490 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:04:48,490 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:04:48,491 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:04:48,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:04:48,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:04:48,491 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:04:48,491 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 12:04:48,491 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 12:04:48,491 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 12:04:48,491 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:04:48,491 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:04:48,491 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:04:48,491 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:04:48,491 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:04:48,492 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:04:48,492 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:04:48,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:04:48,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:04:48,492 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:04:48,492 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:04:48,492 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:04:48,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:04:48,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:04:48,493 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:04:48,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:04:48,493 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:04:48,493 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:04:48,493 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 12:04:48,493 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 12:04:48,493 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:04:48,493 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:04:48,493 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:04:48,494 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:04:48,494 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_1c4dafa5-de29-486b-8dd1-abd17d9ee656/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 -> 34c00af4b4663198525b0b7086d994deb20901b2017b1e6c2fe4ceb71d985d42 [2024-12-02 12:04:48,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:04:48,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:04:48,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:04:48,746 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:04:48,746 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:04:48,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i [2024-12-02 12:04:51,329 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/data/de755bcf8/64ca2bc90a234dbcb20f13d2ec394953/FLAG0aa7a97bf [2024-12-02 12:04:51,558 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:04:51,558 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i [2024-12-02 12:04:51,567 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/data/de755bcf8/64ca2bc90a234dbcb20f13d2ec394953/FLAG0aa7a97bf [2024-12-02 12:04:51,910 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/data/de755bcf8/64ca2bc90a234dbcb20f13d2ec394953 [2024-12-02 12:04:51,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:04:51,913 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:04:51,913 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:04:51,913 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:04:51,916 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:04:51,917 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:04:51" (1/1) ... [2024-12-02 12:04:51,917 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f7b4c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:51, skipping insertion in model container [2024-12-02 12:04:51,918 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:04:51" (1/1) ... [2024-12-02 12:04:51,928 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:04:52,015 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_1c4dafa5-de29-486b-8dd1-abd17d9ee656/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i[916,929] [2024-12-02 12:04:52,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:04:52,068 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:04:52,075 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_1c4dafa5-de29-486b-8dd1-abd17d9ee656/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-18.i[916,929] [2024-12-02 12:04:52,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:04:52,122 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:04:52,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:52 WrapperNode [2024-12-02 12:04:52,122 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:04:52,123 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:04:52,123 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:04:52,123 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:04:52,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:52" (1/1) ... [2024-12-02 12:04:52,141 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:52" (1/1) ... [2024-12-02 12:04:52,166 INFO L138 Inliner]: procedures = 36, calls = 143, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 439 [2024-12-02 12:04:52,167 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:04:52,167 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:04:52,167 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:04:52,167 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:04:52,174 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:52" (1/1) ... [2024-12-02 12:04:52,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:52" (1/1) ... [2024-12-02 12:04:52,180 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:52" (1/1) ... [2024-12-02 12:04:52,198 INFO L175 MemorySlicer]: Split 115 memory accesses to 6 slices as follows [2, 6, 29, 22, 46, 10]. 40 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 1, 3, 2, 3, 1]. The 13 writes are split as follows [0, 1, 4, 2, 4, 2]. [2024-12-02 12:04:52,199 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:52" (1/1) ... [2024-12-02 12:04:52,199 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:52" (1/1) ... [2024-12-02 12:04:52,221 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:52" (1/1) ... [2024-12-02 12:04:52,222 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:52" (1/1) ... [2024-12-02 12:04:52,226 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:52" (1/1) ... [2024-12-02 12:04:52,230 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:52" (1/1) ... [2024-12-02 12:04:52,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:52" (1/1) ... [2024-12-02 12:04:52,237 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:04:52,238 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:04:52,238 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:04:52,239 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:04:52,240 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:52" (1/1) ... [2024-12-02 12:04:52,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:04:52,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:04:52,264 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:04:52,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:04:52,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:04:52,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 12:04:52,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 12:04:52,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-12-02 12:04:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-12-02 12:04:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-12-02 12:04:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-12-02 12:04:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-12-02 12:04:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-12-02 12:04:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-12-02 12:04:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-12-02 12:04:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-12-02 12:04:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2024-12-02 12:04:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 12:04:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 12:04:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-12-02 12:04:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-12-02 12:04:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-12-02 12:04:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-12-02 12:04:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-12-02 12:04:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-12-02 12:04:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-12-02 12:04:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-12-02 12:04:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-12-02 12:04:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-12-02 12:04:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-12-02 12:04:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-12-02 12:04:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-12-02 12:04:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-12-02 12:04:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-12-02 12:04:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-12-02 12:04:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 12:04:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 12:04:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-12-02 12:04:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-12-02 12:04:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-12-02 12:04:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-12-02 12:04:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-12-02 12:04:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-12-02 12:04:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-12-02 12:04:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-12-02 12:04:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-12-02 12:04:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2024-12-02 12:04:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-12-02 12:04:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-12-02 12:04:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-12-02 12:04:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-12-02 12:04:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-12-02 12:04:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-12-02 12:04:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-12-02 12:04:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-12-02 12:04:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-12-02 12:04:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-12-02 12:04:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-12-02 12:04:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-12-02 12:04:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 12:04:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 12:04:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:04:52,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:04:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-02 12:04:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-02 12:04:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-12-02 12:04:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-12-02 12:04:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-12-02 12:04:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-12-02 12:04:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-12-02 12:04:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-12-02 12:04:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-12-02 12:04:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-12-02 12:04:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-12-02 12:04:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2024-12-02 12:04:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-02 12:04:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-02 12:04:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-12-02 12:04:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-12-02 12:04:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-12-02 12:04:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-12-02 12:04:52,447 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:04:52,449 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:04:53,081 INFO L? ?]: Removed 124 outVars from TransFormulas that were not future-live. [2024-12-02 12:04:53,081 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:04:53,091 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:04:53,092 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 12:04:53,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:04:53 BoogieIcfgContainer [2024-12-02 12:04:53,092 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:04:53,094 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:04:53,094 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:04:53,099 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:04:53,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:04:51" (1/3) ... [2024-12-02 12:04:53,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7fef00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:04:53, skipping insertion in model container [2024-12-02 12:04:53,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:04:52" (2/3) ... [2024-12-02 12:04:53,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7fef00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:04:53, skipping insertion in model container [2024-12-02 12:04:53,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:04:53" (3/3) ... [2024-12-02 12:04:53,101 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-18.i [2024-12-02 12:04:53,115 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:04:53,117 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-18.i that has 2 procedures, 92 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 12:04:53,160 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:04:53,169 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;@68231ebb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:04:53,170 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:04:53,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 77 states have (on average 1.4285714285714286) internal successors, (110), 78 states have internal predecessors, (110), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 12:04:53,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 12:04:53,191 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:53,192 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:53,192 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:53,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:53,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1283831834, now seen corresponding path program 1 times [2024-12-02 12:04:53,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:04:53,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805686678] [2024-12-02 12:04:53,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:53,205 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:04:53,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:04:53,207 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:04:53,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-02 12:04:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:53,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 12:04:53,480 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:53,511 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-12-02 12:04:53,511 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:04:53,512 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:04:53,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805686678] [2024-12-02 12:04:53,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1805686678] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:53,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:53,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 12:04:53,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627833227] [2024-12-02 12:04:53,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:53,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 12:04:53,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:04:53,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 12:04:53,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:04:53,537 INFO L87 Difference]: Start difference. First operand has 92 states, 77 states have (on average 1.4285714285714286) internal successors, (110), 78 states have internal predecessors, (110), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:04:53,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:53,559 INFO L93 Difference]: Finished difference Result 177 states and 274 transitions. [2024-12-02 12:04:53,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 12:04:53,560 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 103 [2024-12-02 12:04:53,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:53,566 INFO L225 Difference]: With dead ends: 177 [2024-12-02 12:04:53,566 INFO L226 Difference]: Without dead ends: 88 [2024-12-02 12:04:53,569 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:04:53,572 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:53,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:04:53,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-12-02 12:04:53,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-12-02 12:04:53,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 74 states have internal predecessors, (103), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 12:04:53,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 127 transitions. [2024-12-02 12:04:53,609 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 127 transitions. Word has length 103 [2024-12-02 12:04:53,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:53,609 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 127 transitions. [2024-12-02 12:04:53,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:04:53,610 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 127 transitions. [2024-12-02 12:04:53,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 12:04:53,612 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:53,612 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:53,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 12:04:53,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:04:53,813 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:53,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:53,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1144304698, now seen corresponding path program 1 times [2024-12-02 12:04:53,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:04:53,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [710113965] [2024-12-02 12:04:53,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:53,814 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:04:53,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:04:53,816 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:04:53,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-02 12:04:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:54,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 12:04:54,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:54,127 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-12-02 12:04:54,127 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:04:54,128 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:04:54,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [710113965] [2024-12-02 12:04:54,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [710113965] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:54,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:54,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:04:54,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413923615] [2024-12-02 12:04:54,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:54,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:04:54,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:04:54,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:04:54,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:04:54,131 INFO L87 Difference]: Start difference. First operand 88 states and 127 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:04:54,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:54,183 INFO L93 Difference]: Finished difference Result 175 states and 254 transitions. [2024-12-02 12:04:54,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:04:54,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 103 [2024-12-02 12:04:54,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:54,185 INFO L225 Difference]: With dead ends: 175 [2024-12-02 12:04:54,185 INFO L226 Difference]: Without dead ends: 90 [2024-12-02 12:04:54,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:04:54,186 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:54,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 364 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:04:54,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-12-02 12:04:54,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-12-02 12:04:54,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 76 states have (on average 1.381578947368421) internal successors, (105), 76 states have internal predecessors, (105), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 12:04:54,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2024-12-02 12:04:54,196 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 103 [2024-12-02 12:04:54,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:54,197 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2024-12-02 12:04:54,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:04:54,198 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2024-12-02 12:04:54,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 12:04:54,199 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:54,199 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:54,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 12:04:54,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:04:54,400 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:54,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:54,400 INFO L85 PathProgramCache]: Analyzing trace with hash 814270088, now seen corresponding path program 1 times [2024-12-02 12:04:54,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:04:54,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871501273] [2024-12-02 12:04:54,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:54,401 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:04:54,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:04:54,403 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:04:54,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-12-02 12:04:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:54,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 12:04:54,689 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:54,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2024-12-02 12:04:54,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-02 12:04:54,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 12:04:55,001 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-12-02 12:04:55,001 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:04:55,161 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:04:55,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871501273] [2024-12-02 12:04:55,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871501273] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:04:55,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2025552057] [2024-12-02 12:04:55,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:55,161 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 12:04:55,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 12:04:55,163 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 12:04:55,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-12-02 12:04:55,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:55,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 12:04:55,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:55,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 12:04:56,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-12-02 12:04:56,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2024-12-02 12:04:56,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 12:04:56,230 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-12-02 12:04:56,230 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:04:56,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2025552057] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:04:56,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:04:56,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-12-02 12:04:56,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509621762] [2024-12-02 12:04:56,271 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:04:56,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 12:04:56,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:04:56,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 12:04:56,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-12-02 12:04:56,273 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. Second operand has 13 states, 11 states have (on average 8.0) internal successors, (88), 13 states have internal predecessors, (88), 6 states have call successors, (24), 4 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2024-12-02 12:04:57,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:57,632 INFO L93 Difference]: Finished difference Result 276 states and 391 transitions. [2024-12-02 12:04:57,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 12:04:57,633 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.0) internal successors, (88), 13 states have internal predecessors, (88), 6 states have call successors, (24), 4 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) Word has length 103 [2024-12-02 12:04:57,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:57,635 INFO L225 Difference]: With dead ends: 276 [2024-12-02 12:04:57,635 INFO L226 Difference]: Without dead ends: 189 [2024-12-02 12:04:57,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 236 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=190, Invalid=680, Unknown=0, NotChecked=0, Total=870 [2024-12-02 12:04:57,637 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 248 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:57,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 953 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 12:04:57,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-12-02 12:04:57,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 183. [2024-12-02 12:04:57,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 154 states have (on average 1.37012987012987) internal successors, (211), 154 states have internal predecessors, (211), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 12:04:57,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 259 transitions. [2024-12-02 12:04:57,662 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 259 transitions. Word has length 103 [2024-12-02 12:04:57,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:57,662 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 259 transitions. [2024-12-02 12:04:57,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.0) internal successors, (88), 13 states have internal predecessors, (88), 6 states have call successors, (24), 4 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2024-12-02 12:04:57,663 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 259 transitions. [2024-12-02 12:04:57,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 12:04:57,665 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:57,665 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:57,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-12-02 12:04:57,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-12-02 12:04:58,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 12:04:58,066 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:04:58,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:58,066 INFO L85 PathProgramCache]: Analyzing trace with hash -465593590, now seen corresponding path program 1 times [2024-12-02 12:04:58,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:04:58,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768969358] [2024-12-02 12:04:58,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:58,067 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:04:58,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:04:58,069 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:04:58,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-12-02 12:04:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:58,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 12:04:58,267 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:58,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2024-12-02 12:04:58,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-02 12:04:58,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 12:04:58,529 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-12-02 12:04:58,529 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:04:58,669 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:04:58,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768969358] [2024-12-02 12:04:58,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768969358] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:04:58,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1709151481] [2024-12-02 12:04:58,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:58,670 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 12:04:58,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 12:04:58,671 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 12:04:58,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-12-02 12:04:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:59,138 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 12:04:59,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:04:59,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-12-02 12:04:59,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-12-02 12:04:59,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2024-12-02 12:04:59,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 12:04:59,818 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 149 proven. 15 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-12-02 12:04:59,818 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:04:59,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1709151481] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:04:59,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:04:59,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 15 [2024-12-02 12:04:59,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450144243] [2024-12-02 12:04:59,865 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:04:59,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 12:04:59,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:04:59,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 12:04:59,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-12-02 12:04:59,866 INFO L87 Difference]: Start difference. First operand 183 states and 259 transitions. Second operand has 15 states, 13 states have (on average 6.769230769230769) internal successors, (88), 14 states have internal predecessors, (88), 6 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2024-12-02 12:05:01,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:01,450 INFO L93 Difference]: Finished difference Result 280 states and 392 transitions. [2024-12-02 12:05:01,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 12:05:01,451 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.769230769230769) internal successors, (88), 14 states have internal predecessors, (88), 6 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) Word has length 103 [2024-12-02 12:05:01,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:01,453 INFO L225 Difference]: With dead ends: 280 [2024-12-02 12:05:01,453 INFO L226 Difference]: Without dead ends: 189 [2024-12-02 12:05:01,454 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 232 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=229, Invalid=893, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 12:05:01,455 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 521 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:01,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 969 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 12:05:01,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-12-02 12:05:01,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 183. [2024-12-02 12:05:01,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 154 states have (on average 1.3636363636363635) internal successors, (210), 154 states have internal predecessors, (210), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 12:05:01,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 258 transitions. [2024-12-02 12:05:01,475 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 258 transitions. Word has length 103 [2024-12-02 12:05:01,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:01,476 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 258 transitions. [2024-12-02 12:05:01,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.769230769230769) internal successors, (88), 14 states have internal predecessors, (88), 6 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2024-12-02 12:05:01,476 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 258 transitions. [2024-12-02 12:05:01,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 12:05:01,478 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:01,478 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:01,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-12-02 12:05:01,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-12-02 12:05:01,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:01,879 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:01,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:01,879 INFO L85 PathProgramCache]: Analyzing trace with hash 58106553, now seen corresponding path program 1 times [2024-12-02 12:05:01,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:01,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1275708844] [2024-12-02 12:05:01,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:01,880 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:01,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:01,881 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:01,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-12-02 12:05:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:02,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 12:05:02,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:02,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2024-12-02 12:05:02,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2024-12-02 12:05:02,213 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:05:02,213 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:05:02,213 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:02,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1275708844] [2024-12-02 12:05:02,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1275708844] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:02,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:05:02,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:05:02,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636129472] [2024-12-02 12:05:02,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:02,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:05:02,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:02,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:05:02,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:05:02,214 INFO L87 Difference]: Start difference. First operand 183 states and 258 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:02,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:02,955 INFO L93 Difference]: Finished difference Result 373 states and 526 transitions. [2024-12-02 12:05:02,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:05:02,956 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2024-12-02 12:05:02,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:02,957 INFO L225 Difference]: With dead ends: 373 [2024-12-02 12:05:02,957 INFO L226 Difference]: Without dead ends: 193 [2024-12-02 12:05:02,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-12-02 12:05:02,958 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 126 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:02,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 542 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:05:02,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-12-02 12:05:02,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 189. [2024-12-02 12:05:02,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 160 states have (on average 1.35) internal successors, (216), 160 states have internal predecessors, (216), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 12:05:02,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 264 transitions. [2024-12-02 12:05:02,982 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 264 transitions. Word has length 104 [2024-12-02 12:05:02,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:02,982 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 264 transitions. [2024-12-02 12:05:02,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:02,982 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 264 transitions. [2024-12-02 12:05:02,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 12:05:02,984 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:02,984 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:02,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-12-02 12:05:03,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:03,184 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:03,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:03,185 INFO L85 PathProgramCache]: Analyzing trace with hash -642958025, now seen corresponding path program 1 times [2024-12-02 12:05:03,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:03,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [38433494] [2024-12-02 12:05:03,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:03,185 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:03,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:03,187 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:03,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-12-02 12:05:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:03,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 12:05:03,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:03,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2024-12-02 12:05:03,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-02 12:05:03,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 12:05:03,589 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-12-02 12:05:03,589 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:03,702 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:03,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [38433494] [2024-12-02 12:05:03,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [38433494] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:05:03,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [808941864] [2024-12-02 12:05:03,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:03,703 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 12:05:03,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 12:05:03,704 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 12:05:03,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-12-02 12:05:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:04,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 12:05:04,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:04,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-12-02 12:05:04,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-12-02 12:05:04,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2024-12-02 12:05:04,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 12:05:04,773 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 149 proven. 15 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-12-02 12:05:04,774 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:04,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [808941864] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:05:04,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:05:04,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14 [2024-12-02 12:05:04,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223178330] [2024-12-02 12:05:04,813 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:05:04,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 12:05:04,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:04,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 12:05:04,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-12-02 12:05:04,814 INFO L87 Difference]: Start difference. First operand 189 states and 264 transitions. Second operand has 14 states, 12 states have (on average 7.416666666666667) internal successors, (89), 13 states have internal predecessors, (89), 6 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2024-12-02 12:05:06,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:06,087 INFO L93 Difference]: Finished difference Result 286 states and 395 transitions. [2024-12-02 12:05:06,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 12:05:06,088 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.416666666666667) internal successors, (89), 13 states have internal predecessors, (89), 6 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) Word has length 104 [2024-12-02 12:05:06,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:06,089 INFO L225 Difference]: With dead ends: 286 [2024-12-02 12:05:06,090 INFO L226 Difference]: Without dead ends: 193 [2024-12-02 12:05:06,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 239 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2024-12-02 12:05:06,091 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 209 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:06,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 980 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 12:05:06,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-12-02 12:05:06,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 187. [2024-12-02 12:05:06,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 158 states have (on average 1.3417721518987342) internal successors, (212), 158 states have internal predecessors, (212), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 12:05:06,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 260 transitions. [2024-12-02 12:05:06,114 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 260 transitions. Word has length 104 [2024-12-02 12:05:06,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:06,114 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 260 transitions. [2024-12-02 12:05:06,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.416666666666667) internal successors, (89), 13 states have internal predecessors, (89), 6 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2024-12-02 12:05:06,115 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 260 transitions. [2024-12-02 12:05:06,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 12:05:06,116 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:06,116 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:06,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-12-02 12:05:06,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-12-02 12:05:06,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 12:05:06,516 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:06,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:06,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1803994592, now seen corresponding path program 1 times [2024-12-02 12:05:06,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:06,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104967647] [2024-12-02 12:05:06,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:06,517 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:06,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:06,519 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:06,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-12-02 12:05:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:06,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 12:05:06,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:06,877 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:05:06,877 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:05:06,877 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:06,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104967647] [2024-12-02 12:05:06,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2104967647] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:06,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:05:06,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:05:06,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895237685] [2024-12-02 12:05:06,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:06,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:05:06,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:06,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:05:06,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:05:06,878 INFO L87 Difference]: Start difference. First operand 187 states and 260 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:07,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:07,013 INFO L93 Difference]: Finished difference Result 371 states and 515 transitions. [2024-12-02 12:05:07,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:05:07,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 105 [2024-12-02 12:05:07,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:07,015 INFO L225 Difference]: With dead ends: 371 [2024-12-02 12:05:07,015 INFO L226 Difference]: Without dead ends: 187 [2024-12-02 12:05:07,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 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 12:05:07,016 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 67 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:07,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 375 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:05:07,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-12-02 12:05:07,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 185. [2024-12-02 12:05:07,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 156 states have (on average 1.3333333333333333) internal successors, (208), 156 states have internal predecessors, (208), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 12:05:07,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 256 transitions. [2024-12-02 12:05:07,039 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 256 transitions. Word has length 105 [2024-12-02 12:05:07,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:07,040 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 256 transitions. [2024-12-02 12:05:07,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:07,040 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 256 transitions. [2024-12-02 12:05:07,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 12:05:07,041 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:07,041 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:07,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-12-02 12:05:07,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:07,242 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:07,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:07,242 INFO L85 PathProgramCache]: Analyzing trace with hash 231895965, now seen corresponding path program 1 times [2024-12-02 12:05:07,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:07,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023834465] [2024-12-02 12:05:07,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:07,243 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:07,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:07,244 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:07,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-12-02 12:05:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:07,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 12:05:07,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:07,686 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:05:07,686 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:05:07,687 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:07,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2023834465] [2024-12-02 12:05:07,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2023834465] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:07,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:05:07,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:05:07,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544681411] [2024-12-02 12:05:07,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:07,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:05:07,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:07,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:05:07,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:05:07,688 INFO L87 Difference]: Start difference. First operand 185 states and 256 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:07,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:07,904 INFO L93 Difference]: Finished difference Result 367 states and 507 transitions. [2024-12-02 12:05:07,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:05:07,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2024-12-02 12:05:07,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:07,906 INFO L225 Difference]: With dead ends: 367 [2024-12-02 12:05:07,906 INFO L226 Difference]: Without dead ends: 185 [2024-12-02 12:05:07,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 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 12:05:07,907 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 60 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:07,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 429 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:05:07,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-12-02 12:05:07,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 94. [2024-12-02 12:05:07,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 79 states have (on average 1.3164556962025316) internal successors, (104), 79 states have internal predecessors, (104), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 12:05:07,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 128 transitions. [2024-12-02 12:05:07,920 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 128 transitions. Word has length 106 [2024-12-02 12:05:07,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:07,921 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 128 transitions. [2024-12-02 12:05:07,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:07,921 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 128 transitions. [2024-12-02 12:05:07,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 12:05:07,922 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:07,922 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:07,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-12-02 12:05:08,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:08,123 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:08,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:08,123 INFO L85 PathProgramCache]: Analyzing trace with hash 2031708747, now seen corresponding path program 1 times [2024-12-02 12:05:08,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:08,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091114391] [2024-12-02 12:05:08,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:08,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:08,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:08,125 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:08,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-12-02 12:05:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:08,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 12:05:08,307 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:08,323 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:05:08,324 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:05:08,324 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:08,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091114391] [2024-12-02 12:05:08,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091114391] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:08,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:05:08,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:05:08,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669282570] [2024-12-02 12:05:08,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:08,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:05:08,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:08,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:05:08,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:05:08,325 INFO L87 Difference]: Start difference. First operand 94 states and 128 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:08,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:08,358 INFO L93 Difference]: Finished difference Result 188 states and 257 transitions. [2024-12-02 12:05:08,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:05:08,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2024-12-02 12:05:08,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:08,359 INFO L225 Difference]: With dead ends: 188 [2024-12-02 12:05:08,359 INFO L226 Difference]: Without dead ends: 97 [2024-12-02 12:05:08,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:05:08,360 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:08,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 466 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:05:08,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-12-02 12:05:08,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-12-02 12:05:08,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 82 states have (on average 1.3048780487804879) internal successors, (107), 82 states have internal predecessors, (107), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 12:05:08,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 131 transitions. [2024-12-02 12:05:08,369 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 131 transitions. Word has length 106 [2024-12-02 12:05:08,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:08,370 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 131 transitions. [2024-12-02 12:05:08,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:08,370 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 131 transitions. [2024-12-02 12:05:08,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 12:05:08,370 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:08,370 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:08,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-12-02 12:05:08,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:08,571 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:08,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:08,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1432824362, now seen corresponding path program 1 times [2024-12-02 12:05:08,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:08,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006414613] [2024-12-02 12:05:08,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:08,572 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:08,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:08,573 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:08,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-12-02 12:05:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:08,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 12:05:08,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:08,791 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:05:08,791 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:05:08,791 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:08,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006414613] [2024-12-02 12:05:08,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006414613] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:08,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:05:08,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:05:08,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723592119] [2024-12-02 12:05:08,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:08,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:05:08,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:08,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:05:08,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:05:08,793 INFO L87 Difference]: Start difference. First operand 97 states and 131 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:08,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:08,826 INFO L93 Difference]: Finished difference Result 194 states and 263 transitions. [2024-12-02 12:05:08,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:05:08,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2024-12-02 12:05:08,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:08,827 INFO L225 Difference]: With dead ends: 194 [2024-12-02 12:05:08,827 INFO L226 Difference]: Without dead ends: 100 [2024-12-02 12:05:08,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:05:08,828 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:08,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 464 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:05:08,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-12-02 12:05:08,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-12-02 12:05:08,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 85 states have (on average 1.2941176470588236) internal successors, (110), 85 states have internal predecessors, (110), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 12:05:08,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 134 transitions. [2024-12-02 12:05:08,838 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 134 transitions. Word has length 108 [2024-12-02 12:05:08,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:08,838 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 134 transitions. [2024-12-02 12:05:08,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:08,838 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 134 transitions. [2024-12-02 12:05:08,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 12:05:08,839 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:08,839 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:08,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-12-02 12:05:09,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:09,040 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:09,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:09,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1971554096, now seen corresponding path program 1 times [2024-12-02 12:05:09,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:09,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413255046] [2024-12-02 12:05:09,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:09,041 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:09,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:09,042 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:09,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-12-02 12:05:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:09,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 12:05:09,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:09,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 31 [2024-12-02 12:05:09,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-12-02 12:05:09,431 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:05:09,431 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:05:09,431 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:09,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413255046] [2024-12-02 12:05:09,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413255046] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:09,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:05:09,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:05:09,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700515492] [2024-12-02 12:05:09,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:09,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:05:09,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:09,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:05:09,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:05:09,433 INFO L87 Difference]: Start difference. First operand 100 states and 134 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:09,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:09,916 INFO L93 Difference]: Finished difference Result 257 states and 344 transitions. [2024-12-02 12:05:09,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:05:09,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2024-12-02 12:05:09,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:09,917 INFO L225 Difference]: With dead ends: 257 [2024-12-02 12:05:09,918 INFO L226 Difference]: Without dead ends: 160 [2024-12-02 12:05:09,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:05:09,918 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 70 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:09,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 362 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:05:09,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-12-02 12:05:09,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 157. [2024-12-02 12:05:09,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 135 states have (on average 1.288888888888889) internal successors, (174), 136 states have internal predecessors, (174), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 12:05:09,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 210 transitions. [2024-12-02 12:05:09,936 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 210 transitions. Word has length 108 [2024-12-02 12:05:09,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:09,936 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 210 transitions. [2024-12-02 12:05:09,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:09,936 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 210 transitions. [2024-12-02 12:05:09,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 12:05:09,937 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:09,937 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:09,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2024-12-02 12:05:10,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:10,137 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:10,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:10,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1042120196, now seen corresponding path program 1 times [2024-12-02 12:05:10,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:10,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1945920907] [2024-12-02 12:05:10,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:10,138 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:10,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:10,140 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:10,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-12-02 12:05:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:10,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 12:05:10,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:10,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-12-02 12:05:11,336 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:05:11,336 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:05:11,336 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:11,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1945920907] [2024-12-02 12:05:11,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1945920907] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:11,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:05:11,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:05:11,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067670243] [2024-12-02 12:05:11,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:11,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:05:11,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:11,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:05:11,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:05:11,338 INFO L87 Difference]: Start difference. First operand 157 states and 210 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:13,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:05:16,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:05:19,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:05:22,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.74s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:05:24,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:05:27,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:05:29,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:05:29,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:29,949 INFO L93 Difference]: Finished difference Result 711 states and 941 transitions. [2024-12-02 12:05:29,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:05:29,952 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-12-02 12:05:29,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:29,955 INFO L225 Difference]: With dead ends: 711 [2024-12-02 12:05:29,956 INFO L226 Difference]: Without dead ends: 557 [2024-12-02 12:05:29,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:05:29,957 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 303 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 34 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:29,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 747 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 275 Invalid, 4 Unknown, 0 Unchecked, 18.5s Time] [2024-12-02 12:05:29,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-12-02 12:05:29,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 449. [2024-12-02 12:05:29,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 396 states have (on average 1.2828282828282829) internal successors, (508), 400 states have internal predecessors, (508), 44 states have call successors, (44), 8 states have call predecessors, (44), 8 states have return successors, (44), 40 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 12:05:29,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 596 transitions. [2024-12-02 12:05:29,998 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 596 transitions. Word has length 110 [2024-12-02 12:05:29,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:29,998 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 596 transitions. [2024-12-02 12:05:29,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:29,998 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 596 transitions. [2024-12-02 12:05:29,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 12:05:29,999 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:29,999 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:30,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-12-02 12:05:30,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:30,200 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:30,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:30,200 INFO L85 PathProgramCache]: Analyzing trace with hash -782383678, now seen corresponding path program 1 times [2024-12-02 12:05:30,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:30,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973777010] [2024-12-02 12:05:30,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:30,201 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:30,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:30,202 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:30,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-12-02 12:05:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:30,426 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 12:05:30,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:30,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-12-02 12:05:30,535 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:05:30,535 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:05:30,535 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:30,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973777010] [2024-12-02 12:05:30,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1973777010] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:30,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:05:30,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:05:30,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668377228] [2024-12-02 12:05:30,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:30,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:05:30,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:30,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:05:30,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:05:30,536 INFO L87 Difference]: Start difference. First operand 449 states and 596 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:30,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:30,901 INFO L93 Difference]: Finished difference Result 588 states and 778 transitions. [2024-12-02 12:05:30,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:05:30,902 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 110 [2024-12-02 12:05:30,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:30,904 INFO L225 Difference]: With dead ends: 588 [2024-12-02 12:05:30,905 INFO L226 Difference]: Without dead ends: 586 [2024-12-02 12:05:30,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:05:30,905 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 72 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:30,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 811 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:05:30,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2024-12-02 12:05:30,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 486. [2024-12-02 12:05:30,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 433 states have (on average 1.28175519630485) internal successors, (555), 437 states have internal predecessors, (555), 44 states have call successors, (44), 8 states have call predecessors, (44), 8 states have return successors, (44), 40 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 12:05:30,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 643 transitions. [2024-12-02 12:05:30,961 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 643 transitions. Word has length 110 [2024-12-02 12:05:30,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:30,962 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 643 transitions. [2024-12-02 12:05:30,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:30,962 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 643 transitions. [2024-12-02 12:05:30,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 12:05:30,963 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:30,963 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:30,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-12-02 12:05:31,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:31,163 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:31,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:31,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1695174517, now seen corresponding path program 1 times [2024-12-02 12:05:31,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:31,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773391861] [2024-12-02 12:05:31,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:31,164 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:31,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:31,166 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:31,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-12-02 12:05:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:31,399 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 12:05:31,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:31,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-12-02 12:05:31,536 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-12-02 12:05:31,536 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:31,661 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:31,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [773391861] [2024-12-02 12:05:31,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [773391861] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:05:31,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1650687644] [2024-12-02 12:05:31,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:31,662 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 12:05:31,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 12:05:31,663 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 12:05:31,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-12-02 12:05:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:32,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 12:05:32,508 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:32,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 12:05:32,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-12-02 12:05:32,867 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-12-02 12:05:32,867 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:32,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1650687644] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:05:32,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:05:32,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-12-02 12:05:32,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665446937] [2024-12-02 12:05:32,934 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:05:32,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 12:05:32,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:32,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 12:05:32,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-12-02 12:05:32,935 INFO L87 Difference]: Start difference. First operand 486 states and 643 transitions. Second operand has 12 states, 10 states have (on average 9.9) internal successors, (99), 12 states have internal predecessors, (99), 6 states have call successors, (24), 4 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2024-12-02 12:05:33,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:33,398 INFO L93 Difference]: Finished difference Result 780 states and 1020 transitions. [2024-12-02 12:05:33,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:05:33,399 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 9.9) internal successors, (99), 12 states have internal predecessors, (99), 6 states have call successors, (24), 4 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) Word has length 110 [2024-12-02 12:05:33,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:33,400 INFO L225 Difference]: With dead ends: 780 [2024-12-02 12:05:33,400 INFO L226 Difference]: Without dead ends: 297 [2024-12-02 12:05:33,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 264 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-12-02 12:05:33,401 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 207 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:33,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 516 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:05:33,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-12-02 12:05:33,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 287. [2024-12-02 12:05:33,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 251 states have (on average 1.2310756972111554) internal successors, (309), 252 states have internal predecessors, (309), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 12:05:33,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 365 transitions. [2024-12-02 12:05:33,430 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 365 transitions. Word has length 110 [2024-12-02 12:05:33,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:33,431 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 365 transitions. [2024-12-02 12:05:33,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 9.9) internal successors, (99), 12 states have internal predecessors, (99), 6 states have call successors, (24), 4 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2024-12-02 12:05:33,431 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 365 transitions. [2024-12-02 12:05:33,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 12:05:33,432 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:33,432 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:33,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-12-02 12:05:33,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-12-02 12:05:33,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 12:05:33,832 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:33,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:33,833 INFO L85 PathProgramCache]: Analyzing trace with hash -82928429, now seen corresponding path program 1 times [2024-12-02 12:05:33,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:33,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152760405] [2024-12-02 12:05:33,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:33,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:33,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:33,835 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:33,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-12-02 12:05:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:34,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 12:05:34,046 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:34,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 12:05:34,632 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:05:34,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 19 [2024-12-02 12:05:34,672 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-12-02 12:05:34,672 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:35,177 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:05:35,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 25 [2024-12-02 12:05:35,458 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:35,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152760405] [2024-12-02 12:05:35,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152760405] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:05:35,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1605357884] [2024-12-02 12:05:35,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:35,458 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 12:05:35,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 12:05:35,460 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 12:05:35,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-12-02 12:05:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:36,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 12:05:36,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:36,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 12:05:36,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-12-02 12:05:37,559 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:05:37,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 23 [2024-12-02 12:05:37,638 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 149 proven. 15 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-12-02 12:05:37,638 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:38,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2024-12-02 12:05:38,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1605357884] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:05:38,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:05:38,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 19 [2024-12-02 12:05:38,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65630009] [2024-12-02 12:05:38,499 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:05:38,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 12:05:38,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:38,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 12:05:38,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=717, Unknown=0, NotChecked=0, Total=870 [2024-12-02 12:05:38,500 INFO L87 Difference]: Start difference. First operand 287 states and 365 transitions. Second operand has 20 states, 18 states have (on average 6.222222222222222) internal successors, (112), 18 states have internal predecessors, (112), 6 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2024-12-02 12:05:41,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:41,419 INFO L93 Difference]: Finished difference Result 805 states and 1014 transitions. [2024-12-02 12:05:41,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 12:05:41,420 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 6.222222222222222) internal successors, (112), 18 states have internal predecessors, (112), 6 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) Word has length 111 [2024-12-02 12:05:41,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:41,422 INFO L225 Difference]: With dead ends: 805 [2024-12-02 12:05:41,422 INFO L226 Difference]: Without dead ends: 521 [2024-12-02 12:05:41,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 323 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=452, Invalid=1618, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 12:05:41,423 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 471 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:41,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 1292 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 12:05:41,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-12-02 12:05:41,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 410. [2024-12-02 12:05:41,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 358 states have (on average 1.217877094972067) internal successors, (436), 359 states have internal predecessors, (436), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 12:05:41,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 516 transitions. [2024-12-02 12:05:41,477 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 516 transitions. Word has length 111 [2024-12-02 12:05:41,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:41,477 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 516 transitions. [2024-12-02 12:05:41,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 6.222222222222222) internal successors, (112), 18 states have internal predecessors, (112), 6 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2024-12-02 12:05:41,477 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 516 transitions. [2024-12-02 12:05:41,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 12:05:41,478 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:41,478 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:41,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-12-02 12:05:41,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2024-12-02 12:05:41,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 12:05:41,879 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:41,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:41,879 INFO L85 PathProgramCache]: Analyzing trace with hash 972953512, now seen corresponding path program 1 times [2024-12-02 12:05:41,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:41,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1902617319] [2024-12-02 12:05:41,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:41,880 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:41,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:41,881 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:41,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-12-02 12:05:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:42,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 12:05:42,114 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:42,552 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:05:42,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 42 [2024-12-02 12:05:42,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2024-12-02 12:05:42,658 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:05:42,658 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:05:42,658 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:42,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1902617319] [2024-12-02 12:05:42,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1902617319] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:42,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:05:42,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:05:42,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291742934] [2024-12-02 12:05:42,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:42,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:05:42,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:42,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:05:42,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:05:42,660 INFO L87 Difference]: Start difference. First operand 410 states and 516 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:44,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:44,206 INFO L93 Difference]: Finished difference Result 958 states and 1194 transitions. [2024-12-02 12:05:44,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:05:44,207 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 112 [2024-12-02 12:05:44,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:44,209 INFO L225 Difference]: With dead ends: 958 [2024-12-02 12:05:44,209 INFO L226 Difference]: Without dead ends: 551 [2024-12-02 12:05:44,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:05:44,210 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 192 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:44,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 695 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 12:05:44,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-12-02 12:05:44,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 464. [2024-12-02 12:05:44,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 412 states have (on average 1.1941747572815533) internal successors, (492), 413 states have internal predecessors, (492), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 12:05:44,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 572 transitions. [2024-12-02 12:05:44,267 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 572 transitions. Word has length 112 [2024-12-02 12:05:44,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:44,267 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 572 transitions. [2024-12-02 12:05:44,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:44,268 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 572 transitions. [2024-12-02 12:05:44,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 12:05:44,268 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:44,269 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:44,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-12-02 12:05:44,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:44,469 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:44,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:44,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1153153451, now seen corresponding path program 1 times [2024-12-02 12:05:44,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:44,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296098885] [2024-12-02 12:05:44,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:44,470 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:44,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:44,471 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:44,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-12-02 12:05:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:44,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 12:05:44,697 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:44,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-12-02 12:05:44,806 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:05:44,806 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:05:44,806 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:44,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296098885] [2024-12-02 12:05:44,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296098885] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:44,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:05:44,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:05:44,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185275044] [2024-12-02 12:05:44,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:44,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:05:44,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:44,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:05:44,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:05:44,807 INFO L87 Difference]: Start difference. First operand 464 states and 572 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:45,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:45,118 INFO L93 Difference]: Finished difference Result 529 states and 654 transitions. [2024-12-02 12:05:45,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 12:05:45,121 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2024-12-02 12:05:45,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:45,122 INFO L225 Difference]: With dead ends: 529 [2024-12-02 12:05:45,123 INFO L226 Difference]: Without dead ends: 527 [2024-12-02 12:05:45,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:05:45,123 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 60 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:45,123 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 896 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:05:45,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-12-02 12:05:45,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 482. [2024-12-02 12:05:45,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 430 states have (on average 1.1906976744186046) internal successors, (512), 431 states have internal predecessors, (512), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 12:05:45,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 592 transitions. [2024-12-02 12:05:45,187 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 592 transitions. Word has length 113 [2024-12-02 12:05:45,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:45,188 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 592 transitions. [2024-12-02 12:05:45,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:45,188 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 592 transitions. [2024-12-02 12:05:45,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 12:05:45,189 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:45,189 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:45,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-12-02 12:05:45,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:45,389 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:45,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:45,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1118415355, now seen corresponding path program 1 times [2024-12-02 12:05:45,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:45,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849518293] [2024-12-02 12:05:45,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:45,390 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:45,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:45,391 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:45,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-12-02 12:05:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:45,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 12:05:45,640 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:46,628 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-12-02 12:05:46,628 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:46,834 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:05:46,834 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:46,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849518293] [2024-12-02 12:05:46,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1849518293] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 12:05:46,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:05:46,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-12-02 12:05:46,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103781118] [2024-12-02 12:05:46,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:46,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:05:46,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:46,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:05:46,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:05:46,835 INFO L87 Difference]: Start difference. First operand 482 states and 592 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:47,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:47,136 INFO L93 Difference]: Finished difference Result 1153 states and 1406 transitions. [2024-12-02 12:05:47,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:05:47,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-12-02 12:05:47,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:47,140 INFO L225 Difference]: With dead ends: 1153 [2024-12-02 12:05:47,140 INFO L226 Difference]: Without dead ends: 674 [2024-12-02 12:05:47,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:05:47,142 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 30 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:47,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 502 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:05:47,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2024-12-02 12:05:47,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 667. [2024-12-02 12:05:47,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 603 states have (on average 1.1708126036484245) internal successors, (706), 608 states have internal predecessors, (706), 48 states have call successors, (48), 15 states have call predecessors, (48), 15 states have return successors, (48), 43 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 12:05:47,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 802 transitions. [2024-12-02 12:05:47,201 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 802 transitions. Word has length 115 [2024-12-02 12:05:47,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:47,202 INFO L471 AbstractCegarLoop]: Abstraction has 667 states and 802 transitions. [2024-12-02 12:05:47,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:47,202 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 802 transitions. [2024-12-02 12:05:47,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 12:05:47,203 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:47,203 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:47,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-12-02 12:05:47,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:47,403 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:47,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:47,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1627888445, now seen corresponding path program 1 times [2024-12-02 12:05:47,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:47,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1789823796] [2024-12-02 12:05:47,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:47,404 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:47,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:47,405 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:47,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-12-02 12:05:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:47,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 12:05:47,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:47,866 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 53 proven. 30 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-12-02 12:05:47,867 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:47,968 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:05:47,968 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:47,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1789823796] [2024-12-02 12:05:47,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1789823796] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 12:05:47,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:05:47,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-12-02 12:05:47,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247049821] [2024-12-02 12:05:47,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:47,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:05:47,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:47,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:05:47,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:05:47,969 INFO L87 Difference]: Start difference. First operand 667 states and 802 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:48,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:48,200 INFO L93 Difference]: Finished difference Result 1412 states and 1687 transitions. [2024-12-02 12:05:48,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:05:48,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-12-02 12:05:48,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:48,203 INFO L225 Difference]: With dead ends: 1412 [2024-12-02 12:05:48,203 INFO L226 Difference]: Without dead ends: 748 [2024-12-02 12:05:48,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:05:48,205 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 24 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:48,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 489 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:05:48,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2024-12-02 12:05:48,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 729. [2024-12-02 12:05:48,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 665 states have (on average 1.1548872180451129) internal successors, (768), 670 states have internal predecessors, (768), 48 states have call successors, (48), 15 states have call predecessors, (48), 15 states have return successors, (48), 43 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 12:05:48,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 864 transitions. [2024-12-02 12:05:48,283 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 864 transitions. Word has length 115 [2024-12-02 12:05:48,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:48,284 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 864 transitions. [2024-12-02 12:05:48,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:48,284 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 864 transitions. [2024-12-02 12:05:48,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 12:05:48,285 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:48,285 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:48,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-12-02 12:05:48,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:48,485 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:48,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:48,486 INFO L85 PathProgramCache]: Analyzing trace with hash 171324819, now seen corresponding path program 1 times [2024-12-02 12:05:48,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:48,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301800461] [2024-12-02 12:05:48,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:48,486 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:48,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:48,487 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:48,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-12-02 12:05:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:48,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 12:05:48,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:48,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 12:05:48,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 12:05:48,828 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:05:48,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2024-12-02 12:05:48,976 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:05:48,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 21 [2024-12-02 12:05:49,052 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-12-02 12:05:49,052 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:05:49,052 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:49,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301800461] [2024-12-02 12:05:49,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1301800461] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:49,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:05:49,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 12:05:49,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808092358] [2024-12-02 12:05:49,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:49,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 12:05:49,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:49,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 12:05:49,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:05:49,053 INFO L87 Difference]: Start difference. First operand 729 states and 864 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:05:50,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:50,056 INFO L93 Difference]: Finished difference Result 1735 states and 2066 transitions. [2024-12-02 12:05:50,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 12:05:50,057 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-12-02 12:05:50,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:50,059 INFO L225 Difference]: With dead ends: 1735 [2024-12-02 12:05:50,059 INFO L226 Difference]: Without dead ends: 1214 [2024-12-02 12:05:50,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2024-12-02 12:05:50,060 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 188 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:50,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 1205 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 12:05:50,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2024-12-02 12:05:50,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1186. [2024-12-02 12:05:50,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 1094 states have (on average 1.1608775137111518) internal successors, (1270), 1103 states have internal predecessors, (1270), 68 states have call successors, (68), 23 states have call predecessors, (68), 23 states have return successors, (68), 59 states have call predecessors, (68), 68 states have call successors, (68) [2024-12-02 12:05:50,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 1406 transitions. [2024-12-02 12:05:50,184 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 1406 transitions. Word has length 115 [2024-12-02 12:05:50,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:50,184 INFO L471 AbstractCegarLoop]: Abstraction has 1186 states and 1406 transitions. [2024-12-02 12:05:50,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:05:50,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 1406 transitions. [2024-12-02 12:05:50,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 12:05:50,186 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:50,186 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:50,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-12-02 12:05:50,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:50,387 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:50,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:50,387 INFO L85 PathProgramCache]: Analyzing trace with hash -221702191, now seen corresponding path program 1 times [2024-12-02 12:05:50,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:50,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1609472160] [2024-12-02 12:05:50,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:50,388 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:50,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:50,389 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:50,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-12-02 12:05:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:50,653 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 12:05:50,655 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:50,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 12:05:50,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 12:05:50,690 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:05:50,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2024-12-02 12:05:50,824 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:05:50,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 21 [2024-12-02 12:05:50,845 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 12:05:50,845 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:05:50,845 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:50,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1609472160] [2024-12-02 12:05:50,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1609472160] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:50,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:05:50,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:05:50,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198423586] [2024-12-02 12:05:50,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:50,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:05:50,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:50,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:05:50,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:05:50,847 INFO L87 Difference]: Start difference. First operand 1186 states and 1406 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:51,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:51,201 INFO L93 Difference]: Finished difference Result 2415 states and 2880 transitions. [2024-12-02 12:05:51,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:05:51,202 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-12-02 12:05:51,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:51,205 INFO L225 Difference]: With dead ends: 2415 [2024-12-02 12:05:51,205 INFO L226 Difference]: Without dead ends: 1518 [2024-12-02 12:05:51,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:05:51,206 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 128 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:51,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 596 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:05:51,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2024-12-02 12:05:51,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1324. [2024-12-02 12:05:51,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1232 states have (on average 1.1623376623376624) internal successors, (1432), 1241 states have internal predecessors, (1432), 68 states have call successors, (68), 23 states have call predecessors, (68), 23 states have return successors, (68), 59 states have call predecessors, (68), 68 states have call successors, (68) [2024-12-02 12:05:51,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1568 transitions. [2024-12-02 12:05:51,311 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1568 transitions. Word has length 115 [2024-12-02 12:05:51,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:51,312 INFO L471 AbstractCegarLoop]: Abstraction has 1324 states and 1568 transitions. [2024-12-02 12:05:51,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:51,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1568 transitions. [2024-12-02 12:05:51,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 12:05:51,313 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:51,313 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:51,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-12-02 12:05:51,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:51,513 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:51,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:51,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1557528213, now seen corresponding path program 1 times [2024-12-02 12:05:51,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:51,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [959066924] [2024-12-02 12:05:51,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:51,514 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:51,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:51,515 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:51,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-12-02 12:05:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:51,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 12:05:51,796 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:51,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 12:05:51,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 12:05:51,905 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:05:51,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 40 [2024-12-02 12:05:52,105 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:05:52,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 26 [2024-12-02 12:05:52,137 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-12-02 12:05:52,137 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:05:52,137 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:52,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [959066924] [2024-12-02 12:05:52,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [959066924] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:52,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:05:52,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:05:52,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752948286] [2024-12-02 12:05:52,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:52,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:05:52,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:52,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:05:52,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:05:52,138 INFO L87 Difference]: Start difference. First operand 1324 states and 1568 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:05:52,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:52,733 INFO L93 Difference]: Finished difference Result 2618 states and 3117 transitions. [2024-12-02 12:05:52,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:05:52,734 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-12-02 12:05:52,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:52,738 INFO L225 Difference]: With dead ends: 2618 [2024-12-02 12:05:52,738 INFO L226 Difference]: Without dead ends: 1583 [2024-12-02 12:05:52,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:05:52,740 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 169 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:52,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 469 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:05:52,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2024-12-02 12:05:52,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1358. [2024-12-02 12:05:52,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1358 states, 1261 states have (on average 1.1593973037272007) internal successors, (1462), 1269 states have internal predecessors, (1462), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 62 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 12:05:52,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1602 transitions. [2024-12-02 12:05:52,826 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1602 transitions. Word has length 115 [2024-12-02 12:05:52,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:52,827 INFO L471 AbstractCegarLoop]: Abstraction has 1358 states and 1602 transitions. [2024-12-02 12:05:52,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:05:52,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1602 transitions. [2024-12-02 12:05:52,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 12:05:52,828 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:52,828 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:52,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2024-12-02 12:05:53,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:53,028 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:53,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:53,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1164501203, now seen corresponding path program 1 times [2024-12-02 12:05:53,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:53,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [737557645] [2024-12-02 12:05:53,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:53,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:53,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:53,031 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:53,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-12-02 12:05:53,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:53,343 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 12:05:53,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:53,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 12:05:53,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 27 [2024-12-02 12:05:53,605 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:05:53,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 22 [2024-12-02 12:05:53,684 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-12-02 12:05:53,684 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:05:53,684 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:53,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [737557645] [2024-12-02 12:05:53,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [737557645] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:53,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:05:53,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 12:05:53,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351771040] [2024-12-02 12:05:53,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:53,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 12:05:53,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:53,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 12:05:53,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:05:53,685 INFO L87 Difference]: Start difference. First operand 1358 states and 1602 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:05:54,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:54,737 INFO L93 Difference]: Finished difference Result 2678 states and 3169 transitions. [2024-12-02 12:05:54,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 12:05:54,738 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-12-02 12:05:54,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:54,741 INFO L225 Difference]: With dead ends: 2678 [2024-12-02 12:05:54,741 INFO L226 Difference]: Without dead ends: 1654 [2024-12-02 12:05:54,741 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2024-12-02 12:05:54,742 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 181 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:54,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1271 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 12:05:54,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2024-12-02 12:05:54,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1602. [2024-12-02 12:05:54,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1602 states, 1471 states have (on average 1.1583956492182188) internal successors, (1704), 1483 states have internal predecessors, (1704), 94 states have call successors, (94), 36 states have call predecessors, (94), 36 states have return successors, (94), 82 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 12:05:54,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1602 states to 1602 states and 1892 transitions. [2024-12-02 12:05:54,911 INFO L78 Accepts]: Start accepts. Automaton has 1602 states and 1892 transitions. Word has length 115 [2024-12-02 12:05:54,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:54,911 INFO L471 AbstractCegarLoop]: Abstraction has 1602 states and 1892 transitions. [2024-12-02 12:05:54,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 12:05:54,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1602 states and 1892 transitions. [2024-12-02 12:05:54,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-12-02 12:05:54,915 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:54,915 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 12:05:54,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-12-02 12:05:55,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:55,115 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:55,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:55,116 INFO L85 PathProgramCache]: Analyzing trace with hash -2079429878, now seen corresponding path program 1 times [2024-12-02 12:05:55,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:55,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586153920] [2024-12-02 12:05:55,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:55,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:55,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:55,118 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:55,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-12-02 12:05:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:55,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 12:05:55,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:55,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-12-02 12:05:55,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-12-02 12:05:55,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 12:05:56,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-12-02 12:05:56,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 469 proven. 321 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-12-02 12:05:56,362 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:05:56,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1137 trivial. 0 not checked. [2024-12-02 12:05:56,540 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:56,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [586153920] [2024-12-02 12:05:56,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [586153920] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 12:05:56,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:05:56,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-12-02 12:05:56,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216931288] [2024-12-02 12:05:56,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:56,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:05:56,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:56,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:05:56,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:05:56,542 INFO L87 Difference]: Start difference. First operand 1602 states and 1892 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:57,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:57,084 INFO L93 Difference]: Finished difference Result 2225 states and 2640 transitions. [2024-12-02 12:05:57,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:05:57,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 217 [2024-12-02 12:05:57,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:57,088 INFO L225 Difference]: With dead ends: 2225 [2024-12-02 12:05:57,088 INFO L226 Difference]: Without dead ends: 1576 [2024-12-02 12:05:57,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-12-02 12:05:57,089 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 24 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:57,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 371 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:05:57,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2024-12-02 12:05:57,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1560. [2024-12-02 12:05:57,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1429 states have (on average 1.1518544436669) internal successors, (1646), 1441 states have internal predecessors, (1646), 94 states have call successors, (94), 36 states have call predecessors, (94), 36 states have return successors, (94), 82 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 12:05:57,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 1834 transitions. [2024-12-02 12:05:57,227 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 1834 transitions. Word has length 217 [2024-12-02 12:05:57,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:57,227 INFO L471 AbstractCegarLoop]: Abstraction has 1560 states and 1834 transitions. [2024-12-02 12:05:57,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:05:57,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 1834 transitions. [2024-12-02 12:05:57,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-12-02 12:05:57,231 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:57,231 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 12:05:57,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-12-02 12:05:57,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:57,431 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:05:57,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:57,432 INFO L85 PathProgramCache]: Analyzing trace with hash -949494994, now seen corresponding path program 1 times [2024-12-02 12:05:57,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:05:57,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [211879811] [2024-12-02 12:05:57,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:57,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:05:57,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:05:57,434 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:05:57,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-12-02 12:05:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:57,815 INFO L256 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 12:05:57,819 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:05:57,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-12-02 12:05:58,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-12-02 12:05:58,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 12:06:04,228 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:06:04,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 42 [2024-12-02 12:06:04,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2024-12-02 12:06:04,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1162 backedges. 467 proven. 325 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-12-02 12:06:04,959 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:06:12,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1162 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1139 trivial. 0 not checked. [2024-12-02 12:06:12,084 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:06:12,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [211879811] [2024-12-02 12:06:12,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [211879811] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 12:06:12,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:06:12,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-12-02 12:06:12,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037596834] [2024-12-02 12:06:12,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:12,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:06:12,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:06:12,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:06:12,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:06:12,086 INFO L87 Difference]: Start difference. First operand 1560 states and 1834 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:06:17,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:17,757 INFO L93 Difference]: Finished difference Result 2294 states and 2707 transitions. [2024-12-02 12:06:17,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:06:17,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 219 [2024-12-02 12:06:17,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:17,765 INFO L225 Difference]: With dead ends: 2294 [2024-12-02 12:06:17,765 INFO L226 Difference]: Without dead ends: 1673 [2024-12-02 12:06:17,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-12-02 12:06:17,766 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 48 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:17,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 321 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-12-02 12:06:17,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2024-12-02 12:06:17,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1374. [2024-12-02 12:06:17,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1374 states, 1243 states have (on average 1.1512469831053902) internal successors, (1431), 1255 states have internal predecessors, (1431), 94 states have call successors, (94), 36 states have call predecessors, (94), 36 states have return successors, (94), 82 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 12:06:17,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1374 states to 1374 states and 1619 transitions. [2024-12-02 12:06:17,879 INFO L78 Accepts]: Start accepts. Automaton has 1374 states and 1619 transitions. Word has length 219 [2024-12-02 12:06:17,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:17,879 INFO L471 AbstractCegarLoop]: Abstraction has 1374 states and 1619 transitions. [2024-12-02 12:06:17,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:06:17,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1374 states and 1619 transitions. [2024-12-02 12:06:17,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-12-02 12:06:17,882 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:17,882 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 12:06:17,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2024-12-02 12:06:18,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:06:18,083 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:18,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:18,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1906873498, now seen corresponding path program 1 times [2024-12-02 12:06:18,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:06:18,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390763620] [2024-12-02 12:06:18,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:18,084 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:06:18,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:06:18,085 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:06:18,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2024-12-02 12:06:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:18,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 12:06:18,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:18,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-12-02 12:06:18,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-12-02 12:06:18,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 12:06:20,344 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:06:20,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 32 [2024-12-02 12:06:20,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 731 proven. 217 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-12-02 12:06:20,580 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:06:21,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1137 trivial. 0 not checked. [2024-12-02 12:06:21,516 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:06:21,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390763620] [2024-12-02 12:06:21,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390763620] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 12:06:21,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:06:21,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 21 [2024-12-02 12:06:21,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657675575] [2024-12-02 12:06:21,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:21,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:06:21,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:06:21,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:06:21,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-12-02 12:06:21,517 INFO L87 Difference]: Start difference. First operand 1374 states and 1619 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:06:22,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:22,777 INFO L93 Difference]: Finished difference Result 2434 states and 2863 transitions. [2024-12-02 12:06:22,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:06:22,778 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 220 [2024-12-02 12:06:22,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:22,781 INFO L225 Difference]: With dead ends: 2434 [2024-12-02 12:06:22,781 INFO L226 Difference]: Without dead ends: 1394 [2024-12-02 12:06:22,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2024-12-02 12:06:22,782 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 24 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:22,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 563 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 12:06:22,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2024-12-02 12:06:22,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1326. [2024-12-02 12:06:22,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 1195 states have (on average 1.1389121338912134) internal successors, (1361), 1207 states have internal predecessors, (1361), 94 states have call successors, (94), 36 states have call predecessors, (94), 36 states have return successors, (94), 82 states have call predecessors, (94), 94 states have call successors, (94) [2024-12-02 12:06:22,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1549 transitions. [2024-12-02 12:06:22,892 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1549 transitions. Word has length 220 [2024-12-02 12:06:22,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:22,893 INFO L471 AbstractCegarLoop]: Abstraction has 1326 states and 1549 transitions. [2024-12-02 12:06:22,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:06:22,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1549 transitions. [2024-12-02 12:06:22,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-12-02 12:06:22,896 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:22,896 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 12:06:22,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2024-12-02 12:06:23,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:06:23,096 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:23,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:23,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1491331700, now seen corresponding path program 1 times [2024-12-02 12:06:23,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:06:23,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777365437] [2024-12-02 12:06:23,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:23,097 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:06:23,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:06:23,098 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 12:06:23,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-12-02 12:06:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:23,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 12:06:23,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:23,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-12-02 12:06:24,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-12-02 12:06:24,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 12:06:25,560 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:06:25,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 31 [2024-12-02 12:06:25,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 731 proven. 217 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-12-02 12:06:25,812 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:06:26,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1137 trivial. 0 not checked. [2024-12-02 12:06:26,819 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:06:26,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777365437] [2024-12-02 12:06:26,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777365437] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 12:06:26,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:06:26,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 21 [2024-12-02 12:06:26,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272696074] [2024-12-02 12:06:26,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:06:26,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:06:26,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:06:26,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:06:26,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-12-02 12:06:26,821 INFO L87 Difference]: Start difference. First operand 1326 states and 1549 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:06:28,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:28,025 INFO L93 Difference]: Finished difference Result 2348 states and 2740 transitions. [2024-12-02 12:06:28,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:06:28,026 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 220 [2024-12-02 12:06:28,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:28,027 INFO L225 Difference]: With dead ends: 2348 [2024-12-02 12:06:28,027 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 12:06:28,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2024-12-02 12:06:28,028 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 34 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:28,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 530 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 12:06:28,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 12:06:28,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 12:06:28,029 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 12:06:28,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 12:06:28,029 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 220 [2024-12-02 12:06:28,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:28,029 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 12:06:28,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 12:06:28,030 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 12:06:28,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 12:06:28,032 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 12:06:28,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2024-12-02 12:06:28,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 12:06:28,235 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] [2024-12-02 12:06:28,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 12:07:43,942 WARN L286 SmtUtils]: Spent 1.26m on a formula simplification. DAG size of input: 292 DAG size of output: 306 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 12:08:15,821 WARN L286 SmtUtils]: Spent 13.04s on a formula simplification. DAG size of input: 597 DAG size of output: 45 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:08:30,830 WARN L286 SmtUtils]: Spent 11.14s on a formula simplification. DAG size of input: 639 DAG size of output: 42 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:08:37,370 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 12:08:37,378 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-12-02 12:08:37,379 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-12-02 12:08:37,379 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#5 [2024-12-02 12:08:37,379 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#5,GLOBAL] [2024-12-02 12:08:37,379 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#5,GLOBAL],[IdentifierExpression[~#unsigned_long_int_Array_0~0!base,GLOBAL]]] [2024-12-02 12:08:37,380 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-12-02 12:08:37,380 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-12-02 12:08:37,380 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-12-02 12:08:37,380 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-12-02 12:08:37,380 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#signed_short_int_Array_0~0!offset [2024-12-02 12:08:37,380 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-12-02 12:08:37,380 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-12-02 12:08:37,380 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#5 [2024-12-02 12:08:37,380 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#5,GLOBAL] [2024-12-02 12:08:37,380 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#5,GLOBAL],[IdentifierExpression[~#unsigned_long_int_Array_0~0!base,GLOBAL]]] [2024-12-02 12:08:37,380 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-12-02 12:08:37,380 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-12-02 12:08:37,380 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-12-02 12:08:37,380 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-12-02 12:08:37,380 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#signed_short_int_Array_0~0!offset [2024-12-02 12:08:37,380 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-12-02 12:08:37,380 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4 [2024-12-02 12:08:37,381 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL] [2024-12-02 12:08:37,381 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[~#unsigned_char_Array_0~0!base,GLOBAL]]] [2024-12-02 12:08:37,381 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-12-02 12:08:37,381 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-12-02 12:08:37,381 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#5 [2024-12-02 12:08:37,381 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#5,GLOBAL] [2024-12-02 12:08:37,381 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#5,GLOBAL],[IdentifierExpression[~#unsigned_long_int_Array_0~0!base,GLOBAL]]] [2024-12-02 12:08:37,381 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-12-02 12:08:37,381 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-12-02 12:08:37,381 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-12-02 12:08:37,381 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-12-02 12:08:37,381 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#signed_short_int_Array_0~0!offset [2024-12-02 12:08:37,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:08:37 BoogieIcfgContainer [2024-12-02 12:08:37,381 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 12:08:37,382 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 12:08:37,382 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 12:08:37,382 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 12:08:37,382 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:04:53" (3/4) ... [2024-12-02 12:08:37,384 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 12:08:37,387 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 12:08:37,393 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-12-02 12:08:37,394 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-02 12:08:37,394 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 12:08:37,395 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 12:08:37,470 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 12:08:37,470 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 12:08:37,470 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 12:08:37,471 INFO L158 Benchmark]: Toolchain (without parser) took 225558.34ms. Allocated memory was 92.3MB in the beginning and 469.8MB in the end (delta: 377.5MB). Free memory was 69.4MB in the beginning and 414.6MB in the end (delta: -345.2MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2024-12-02 12:08:37,471 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:08:37,471 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.42ms. Allocated memory is still 92.3MB. Free memory was 69.2MB in the beginning and 54.0MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 12:08:37,471 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.30ms. Allocated memory is still 92.3MB. Free memory was 53.9MB in the beginning and 50.8MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:08:37,471 INFO L158 Benchmark]: Boogie Preprocessor took 70.62ms. Allocated memory is still 92.3MB. Free memory was 50.8MB in the beginning and 46.0MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 12:08:37,472 INFO L158 Benchmark]: RCFGBuilder took 853.94ms. Allocated memory is still 92.3MB. Free memory was 46.0MB in the beginning and 40.1MB in the end (delta: 6.0MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2024-12-02 12:08:37,472 INFO L158 Benchmark]: TraceAbstraction took 224286.98ms. Allocated memory was 92.3MB in the beginning and 469.8MB in the end (delta: 377.5MB). Free memory was 39.4MB in the beginning and 422.9MB in the end (delta: -383.5MB). Peak memory consumption was 256.3MB. Max. memory is 16.1GB. [2024-12-02 12:08:37,472 INFO L158 Benchmark]: Witness Printer took 88.67ms. Allocated memory is still 469.8MB. Free memory was 422.9MB in the beginning and 414.6MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 12:08:37,473 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 209.42ms. Allocated memory is still 92.3MB. Free memory was 69.2MB in the beginning and 54.0MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.30ms. Allocated memory is still 92.3MB. Free memory was 53.9MB in the beginning and 50.8MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 70.62ms. Allocated memory is still 92.3MB. Free memory was 50.8MB in the beginning and 46.0MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 853.94ms. Allocated memory is still 92.3MB. Free memory was 46.0MB in the beginning and 40.1MB in the end (delta: 6.0MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * TraceAbstraction took 224286.98ms. Allocated memory was 92.3MB in the beginning and 469.8MB in the end (delta: 377.5MB). Free memory was 39.4MB in the beginning and 422.9MB in the end (delta: -383.5MB). Peak memory consumption was 256.3MB. Max. memory is 16.1GB. * Witness Printer took 88.67ms. Allocated memory is still 469.8MB. Free memory was 422.9MB in the beginning and 414.6MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#5,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#5,GLOBAL],[IdentifierExpression[~#unsigned_long_int_Array_0~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#signed_short_int_Array_0~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#5,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#5,GLOBAL],[IdentifierExpression[~#unsigned_long_int_Array_0~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#signed_short_int_Array_0~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[~#unsigned_char_Array_0~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#5,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#5,GLOBAL],[IdentifierExpression[~#unsigned_long_int_Array_0~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#signed_short_int_Array_0~0!offset * 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: 19]: 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 2 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 95.1s, OverallIterations: 27, TraceHistogramMax: 24, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 42.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 3484 SdHoareTripleChecker+Valid, 35.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3456 mSDsluCounter, 17305 SdHoareTripleChecker+Invalid, 33.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13617 mSDsCounter, 390 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6259 IncrementalHoareTripleChecker+Invalid, 6653 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 390 mSolverCounterUnsat, 3688 mSDtfsCounter, 6259 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5436 GetRequests, 5073 SyntacticMatches, 6 SemanticMatches, 357 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1439 ImplicationChecksByTransitivity, 19.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1602occurred in iteration=23, InterpolantAutomatonStates: 252, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 27 MinimizatonAttempts, 1487 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 6.2s SatisfiabilityAnalysisTime, 34.6s InterpolantComputationTime, 3916 NumberOfCodeBlocks, 3916 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 4984 ConstructedInterpolants, 722 QuantifiedInterpolants, 41030 SizeOfPredicates, 198 NumberOfNonLiveVariables, 8651 ConjunctsInSsa, 373 ConjunctsInUnsatCore, 38 InterpolantComputations, 22 PerfectInterpolantSequences, 15836/17204 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 RESULT: Ultimate proved your program to be correct! [2024-12-02 12:08:37,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4dafa5-de29-486b-8dd1-abd17d9ee656/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