./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.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_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/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_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/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_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/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 97e6e3d13746c4e22bbbdf0b6c24dfd54006258f6e92602d0c646bb6642564ab --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:37:58,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:37:58,369 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 06:37:58,375 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:37:58,375 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:37:58,402 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:37:58,402 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:37:58,402 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:37:58,403 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:37:58,403 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:37:58,403 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:37:58,403 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:37:58,404 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:37:58,404 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:37:58,404 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:37:58,404 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:37:58,404 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:37:58,404 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:37:58,404 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:37:58,405 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:37:58,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:37:58,405 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:37:58,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:37:58,405 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:37:58,405 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:37:58,405 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:37:58,405 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:37:58,405 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:37:58,406 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:37:58,406 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:37:58,406 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:37:58,406 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:37:58,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:37:58,406 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:37:58,406 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:37:58,407 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:37:58,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:37:58,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:37:58,407 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:37:58,407 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:37:58,407 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:37:58,407 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:37:58,407 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:37:58,408 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:37:58,408 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:37:58,408 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:37:58,408 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:37:58,408 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:37:58,408 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_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/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 -> 97e6e3d13746c4e22bbbdf0b6c24dfd54006258f6e92602d0c646bb6642564ab [2024-12-02 06:37:58,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:37:58,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:37:58,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:37:58,693 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:37:58,694 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:37:58,695 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i [2024-12-02 06:38:02,131 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/data/90c2d7baf/6fb93120f59844ff935a18bde30a2ecb/FLAGbe1b7a510 [2024-12-02 06:38:02,382 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:38:02,382 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i [2024-12-02 06:38:02,392 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/data/90c2d7baf/6fb93120f59844ff935a18bde30a2ecb/FLAGbe1b7a510 [2024-12-02 06:38:02,409 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/data/90c2d7baf/6fb93120f59844ff935a18bde30a2ecb [2024-12-02 06:38:02,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:38:02,412 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:38:02,414 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:38:02,414 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:38:02,418 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:38:02,419 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:38:02" (1/1) ... [2024-12-02 06:38:02,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38e2a51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:38:02, skipping insertion in model container [2024-12-02 06:38:02,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:38:02" (1/1) ... [2024-12-02 06:38:02,442 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:38:02,615 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_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i[916,929] [2024-12-02 06:38:02,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:38:02,696 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:38:02,709 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_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i[916,929] [2024-12-02 06:38:02,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:38:02,773 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:38:02,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:38:02 WrapperNode [2024-12-02 06:38:02,774 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:38:02,775 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:38:02,775 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:38:02,776 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:38:02,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:38:02" (1/1) ... [2024-12-02 06:38:02,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:38:02" (1/1) ... [2024-12-02 06:38:02,838 INFO L138 Inliner]: procedures = 26, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 435 [2024-12-02 06:38:02,839 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:38:02,839 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:38:02,839 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:38:02,840 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:38:02,851 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:38:02" (1/1) ... [2024-12-02 06:38:02,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:38:02" (1/1) ... [2024-12-02 06:38:02,858 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:38:02" (1/1) ... [2024-12-02 06:38:02,880 INFO L175 MemorySlicer]: Split 107 memory accesses to 6 slices as follows [2, 44, 29, 5, 13, 14]. 41 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 5, 3, 1, 1, 2]. The 15 writes are split as follows [0, 8, 3, 1, 1, 2]. [2024-12-02 06:38:02,880 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:38:02" (1/1) ... [2024-12-02 06:38:02,881 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:38:02" (1/1) ... [2024-12-02 06:38:02,900 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:38:02" (1/1) ... [2024-12-02 06:38:02,902 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:38:02" (1/1) ... [2024-12-02 06:38:02,907 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:38:02" (1/1) ... [2024-12-02 06:38:02,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:38:02" (1/1) ... [2024-12-02 06:38:02,913 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:38:02" (1/1) ... [2024-12-02 06:38:02,918 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:38:02,919 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:38:02,919 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:38:02,919 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:38:02,920 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:38:02" (1/1) ... [2024-12-02 06:38:02,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:38:02,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:38:02,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:38:02,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:38:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:38:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 06:38:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 06:38:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 06:38:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 06:38:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 06:38:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 06:38:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 06:38:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 06:38:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 06:38:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 06:38:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 06:38:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 06:38:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 06:38:02,998 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 06:38:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:38:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 06:38:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 06:38:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 06:38:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 06:38:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 06:38:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:38:02,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:38:03,123 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:38:03,124 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:38:03,647 INFO L? ?]: Removed 96 outVars from TransFormulas that were not future-live. [2024-12-02 06:38:03,647 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:38:03,661 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:38:03,662 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 06:38:03,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:38:03 BoogieIcfgContainer [2024-12-02 06:38:03,662 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:38:03,665 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:38:03,665 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:38:03,671 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:38:03,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:38:02" (1/3) ... [2024-12-02 06:38:03,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5745f8b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:38:03, skipping insertion in model container [2024-12-02 06:38:03,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:38:02" (2/3) ... [2024-12-02 06:38:03,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5745f8b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:38:03, skipping insertion in model container [2024-12-02 06:38:03,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:38:03" (3/3) ... [2024-12-02 06:38:03,675 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-89.i [2024-12-02 06:38:03,695 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:38:03,697 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-89.i that has 2 procedures, 102 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 06:38:03,761 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:38:03,777 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;@3df7fc6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:38:03,777 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:38:03,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 86 states have (on average 1.441860465116279) internal successors, (124), 87 states have internal predecessors, (124), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 06:38:03,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 06:38:03,791 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:03,792 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:03,793 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:03,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:03,797 INFO L85 PathProgramCache]: Analyzing trace with hash 80080085, now seen corresponding path program 1 times [2024-12-02 06:38:03,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:03,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186404454] [2024-12-02 06:38:03,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:03,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:03,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:04,131 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 06:38:04,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:04,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186404454] [2024-12-02 06:38:04,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186404454] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:38:04,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860917466] [2024-12-02 06:38:04,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:04,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:38:04,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:38:04,135 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:38:04,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:38:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:04,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 06:38:04,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:38:04,391 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 06:38:04,391 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:38:04,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860917466] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:04,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:38:04,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 06:38:04,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642829357] [2024-12-02 06:38:04,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:04,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 06:38:04,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:04,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 06:38:04,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:38:04,418 INFO L87 Difference]: Start difference. First operand has 102 states, 86 states have (on average 1.441860465116279) internal successors, (124), 87 states have internal predecessors, (124), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 06:38:04,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:04,449 INFO L93 Difference]: Finished difference Result 197 states and 307 transitions. [2024-12-02 06:38:04,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 06:38:04,452 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2024-12-02 06:38:04,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:04,459 INFO L225 Difference]: With dead ends: 197 [2024-12-02 06:38:04,459 INFO L226 Difference]: Without dead ends: 98 [2024-12-02 06:38:04,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 110 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 06:38:04,466 INFO L435 NwaCegarLoop]: 141 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, 141 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 06:38:04,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:38:04,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-12-02 06:38:04,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-12-02 06:38:04,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 83 states have internal predecessors, (115), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 06:38:04,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 141 transitions. [2024-12-02 06:38:04,509 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 141 transitions. Word has length 109 [2024-12-02 06:38:04,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:04,509 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 141 transitions. [2024-12-02 06:38:04,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 06:38:04,510 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 141 transitions. [2024-12-02 06:38:04,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 06:38:04,512 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:04,513 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:04,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:38:04,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 06:38:04,714 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:04,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:04,715 INFO L85 PathProgramCache]: Analyzing trace with hash 231956475, now seen corresponding path program 1 times [2024-12-02 06:38:04,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:04,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74990960] [2024-12-02 06:38:04,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:04,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:05,061 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:05,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:05,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74990960] [2024-12-02 06:38:05,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74990960] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:05,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:05,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:38:05,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944246635] [2024-12-02 06:38:05,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:05,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:38:05,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:05,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:38:05,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:38:05,064 INFO L87 Difference]: Start difference. First operand 98 states and 141 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:05,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:05,124 INFO L93 Difference]: Finished difference Result 196 states and 283 transitions. [2024-12-02 06:38:05,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:38:05,125 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 109 [2024-12-02 06:38:05,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:05,127 INFO L225 Difference]: With dead ends: 196 [2024-12-02 06:38:05,127 INFO L226 Difference]: Without dead ends: 101 [2024-12-02 06:38:05,128 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 06:38:05,129 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 1 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:05,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 403 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:38:05,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-12-02 06:38:05,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2024-12-02 06:38:05,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 85 states have (on average 1.3764705882352941) internal successors, (117), 85 states have internal predecessors, (117), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 06:38:05,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 143 transitions. [2024-12-02 06:38:05,142 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 143 transitions. Word has length 109 [2024-12-02 06:38:05,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:05,144 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 143 transitions. [2024-12-02 06:38:05,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:05,144 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2024-12-02 06:38:05,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 06:38:05,146 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:05,146 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:05,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:38:05,147 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:05,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:05,148 INFO L85 PathProgramCache]: Analyzing trace with hash 912014845, now seen corresponding path program 1 times [2024-12-02 06:38:05,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:05,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672953090] [2024-12-02 06:38:05,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:05,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:05,362 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:05,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:05,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672953090] [2024-12-02 06:38:05,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672953090] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:05,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:05,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:38:05,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620567222] [2024-12-02 06:38:05,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:05,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:38:05,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:05,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:38:05,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:38:05,365 INFO L87 Difference]: Start difference. First operand 100 states and 143 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:05,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:05,409 INFO L93 Difference]: Finished difference Result 200 states and 287 transitions. [2024-12-02 06:38:05,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:38:05,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 109 [2024-12-02 06:38:05,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:05,411 INFO L225 Difference]: With dead ends: 200 [2024-12-02 06:38:05,411 INFO L226 Difference]: Without dead ends: 103 [2024-12-02 06:38:05,412 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 06:38:05,413 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 1 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:05,414 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 404 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:38:05,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-12-02 06:38:05,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2024-12-02 06:38:05,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 87 states have (on average 1.367816091954023) internal successors, (119), 87 states have internal predecessors, (119), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 06:38:05,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 145 transitions. [2024-12-02 06:38:05,426 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 145 transitions. Word has length 109 [2024-12-02 06:38:05,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:05,427 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 145 transitions. [2024-12-02 06:38:05,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:05,427 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2024-12-02 06:38:05,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 06:38:05,429 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:05,430 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:05,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:38:05,430 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:05,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:05,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1607945089, now seen corresponding path program 1 times [2024-12-02 06:38:05,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:05,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187937686] [2024-12-02 06:38:05,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:05,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:05,628 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:05,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:05,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187937686] [2024-12-02 06:38:05,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187937686] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:05,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:05,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:38:05,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213967818] [2024-12-02 06:38:05,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:05,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:38:05,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:05,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:38:05,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:38:05,630 INFO L87 Difference]: Start difference. First operand 102 states and 145 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:05,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:05,666 INFO L93 Difference]: Finished difference Result 204 states and 291 transitions. [2024-12-02 06:38:05,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:38:05,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 109 [2024-12-02 06:38:05,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:05,669 INFO L225 Difference]: With dead ends: 204 [2024-12-02 06:38:05,669 INFO L226 Difference]: Without dead ends: 105 [2024-12-02 06:38:05,670 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 06:38:05,671 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 1 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:05,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 406 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:38:05,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-12-02 06:38:05,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2024-12-02 06:38:05,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 89 states have internal predecessors, (121), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 06:38:05,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 147 transitions. [2024-12-02 06:38:05,682 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 147 transitions. Word has length 109 [2024-12-02 06:38:05,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:05,682 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 147 transitions. [2024-12-02 06:38:05,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:05,683 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 147 transitions. [2024-12-02 06:38:05,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 06:38:05,685 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:05,685 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:05,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:38:05,685 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:05,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:05,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1606098047, now seen corresponding path program 1 times [2024-12-02 06:38:05,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:05,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987342222] [2024-12-02 06:38:05,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:05,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:08,381 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:08,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:08,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987342222] [2024-12-02 06:38:08,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987342222] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:08,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:08,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 06:38:08,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392990359] [2024-12-02 06:38:08,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:08,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:38:08,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:08,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:38:08,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:38:08,384 INFO L87 Difference]: Start difference. First operand 104 states and 147 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 06:38:09,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:09,084 INFO L93 Difference]: Finished difference Result 278 states and 392 transitions. [2024-12-02 06:38:09,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:38:09,086 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2024-12-02 06:38:09,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:09,088 INFO L225 Difference]: With dead ends: 278 [2024-12-02 06:38:09,088 INFO L226 Difference]: Without dead ends: 177 [2024-12-02 06:38:09,089 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:38:09,090 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 87 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:09,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 926 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:38:09,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-12-02 06:38:09,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 174. [2024-12-02 06:38:09,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 156 states have (on average 1.3782051282051282) internal successors, (215), 157 states have internal predecessors, (215), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 06:38:09,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 245 transitions. [2024-12-02 06:38:09,107 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 245 transitions. Word has length 109 [2024-12-02 06:38:09,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:09,107 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 245 transitions. [2024-12-02 06:38:09,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 06:38:09,107 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 245 transitions. [2024-12-02 06:38:09,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 06:38:09,109 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:09,109 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:09,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:38:09,110 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:09,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:09,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1667800895, now seen corresponding path program 1 times [2024-12-02 06:38:09,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:09,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446060114] [2024-12-02 06:38:09,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:09,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:09,971 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:09,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:09,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446060114] [2024-12-02 06:38:09,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446060114] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:09,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:09,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:38:09,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815820821] [2024-12-02 06:38:09,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:09,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:38:09,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:09,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:38:09,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:38:09,974 INFO L87 Difference]: Start difference. First operand 174 states and 245 transitions. Second operand has 7 states, 5 states have (on average 9.4) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 06:38:10,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:10,311 INFO L93 Difference]: Finished difference Result 357 states and 499 transitions. [2024-12-02 06:38:10,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:38:10,312 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.4) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 3 states have call successors, (13) Word has length 109 [2024-12-02 06:38:10,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:10,314 INFO L225 Difference]: With dead ends: 357 [2024-12-02 06:38:10,314 INFO L226 Difference]: Without dead ends: 186 [2024-12-02 06:38:10,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:38:10,315 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 168 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:10,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 575 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:38:10,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-12-02 06:38:10,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 181. [2024-12-02 06:38:10,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 160 states have (on average 1.3625) internal successors, (218), 161 states have internal predecessors, (218), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 06:38:10,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 252 transitions. [2024-12-02 06:38:10,335 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 252 transitions. Word has length 109 [2024-12-02 06:38:10,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:10,335 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 252 transitions. [2024-12-02 06:38:10,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.4) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 06:38:10,335 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 252 transitions. [2024-12-02 06:38:10,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 06:38:10,337 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:10,337 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:10,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:38:10,337 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:10,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:10,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1927988566, now seen corresponding path program 1 times [2024-12-02 06:38:10,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:10,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944639698] [2024-12-02 06:38:10,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:10,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:11,742 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:11,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:11,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944639698] [2024-12-02 06:38:11,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944639698] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:11,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:11,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:38:11,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343341259] [2024-12-02 06:38:11,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:11,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:38:11,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:11,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:38:11,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:38:11,745 INFO L87 Difference]: Start difference. First operand 181 states and 252 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 06:38:12,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:12,467 INFO L93 Difference]: Finished difference Result 616 states and 861 transitions. [2024-12-02 06:38:12,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:38:12,468 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2024-12-02 06:38:12,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:12,472 INFO L225 Difference]: With dead ends: 616 [2024-12-02 06:38:12,472 INFO L226 Difference]: Without dead ends: 438 [2024-12-02 06:38:12,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:38:12,474 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 269 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:12,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 722 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 06:38:12,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-12-02 06:38:12,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 431. [2024-12-02 06:38:12,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 379 states have (on average 1.3614775725593669) internal successors, (516), 382 states have internal predecessors, (516), 44 states have call successors, (44), 7 states have call predecessors, (44), 7 states have return successors, (44), 41 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 06:38:12,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 604 transitions. [2024-12-02 06:38:12,524 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 604 transitions. Word has length 109 [2024-12-02 06:38:12,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:12,525 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 604 transitions. [2024-12-02 06:38:12,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 06:38:12,525 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 604 transitions. [2024-12-02 06:38:12,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 06:38:12,528 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:12,528 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:12,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 06:38:12,528 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:12,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:12,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1387243329, now seen corresponding path program 1 times [2024-12-02 06:38:12,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:12,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428307120] [2024-12-02 06:38:12,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:12,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:13,323 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:13,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:13,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428307120] [2024-12-02 06:38:13,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428307120] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:13,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:13,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:38:13,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719338931] [2024-12-02 06:38:13,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:13,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:38:13,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:13,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:38:13,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:38:13,325 INFO L87 Difference]: Start difference. First operand 431 states and 604 transitions. Second operand has 7 states, 5 states have (on average 9.4) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 06:38:13,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:13,641 INFO L93 Difference]: Finished difference Result 953 states and 1330 transitions. [2024-12-02 06:38:13,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:38:13,642 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.4) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 3 states have call successors, (13) Word has length 109 [2024-12-02 06:38:13,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:13,646 INFO L225 Difference]: With dead ends: 953 [2024-12-02 06:38:13,646 INFO L226 Difference]: Without dead ends: 525 [2024-12-02 06:38:13,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:38:13,648 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 169 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:13,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 617 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:38:13,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-12-02 06:38:13,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 518. [2024-12-02 06:38:13,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 455 states have (on average 1.3560439560439561) internal successors, (617), 460 states have internal predecessors, (617), 52 states have call successors, (52), 10 states have call predecessors, (52), 10 states have return successors, (52), 47 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 06:38:13,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 721 transitions. [2024-12-02 06:38:13,698 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 721 transitions. Word has length 109 [2024-12-02 06:38:13,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:13,699 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 721 transitions. [2024-12-02 06:38:13,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.4) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 06:38:13,700 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 721 transitions. [2024-12-02 06:38:13,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 06:38:13,702 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:13,702 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:13,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 06:38:13,703 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:13,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:13,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1886655613, now seen corresponding path program 1 times [2024-12-02 06:38:13,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:13,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661751751] [2024-12-02 06:38:13,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:13,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:14,291 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:14,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:14,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661751751] [2024-12-02 06:38:14,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661751751] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:14,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:14,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:38:14,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505676897] [2024-12-02 06:38:14,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:14,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:38:14,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:14,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:38:14,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:38:14,294 INFO L87 Difference]: Start difference. First operand 518 states and 721 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:14,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:14,700 INFO L93 Difference]: Finished difference Result 1106 states and 1539 transitions. [2024-12-02 06:38:14,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:38:14,701 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 109 [2024-12-02 06:38:14,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:14,705 INFO L225 Difference]: With dead ends: 1106 [2024-12-02 06:38:14,706 INFO L226 Difference]: Without dead ends: 604 [2024-12-02 06:38:14,707 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:38:14,708 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 130 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:14,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1002 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:38:14,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-12-02 06:38:14,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 580. [2024-12-02 06:38:14,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 490 states have (on average 1.3285714285714285) internal successors, (651), 495 states have internal predecessors, (651), 76 states have call successors, (76), 13 states have call predecessors, (76), 13 states have return successors, (76), 71 states have call predecessors, (76), 76 states have call successors, (76) [2024-12-02 06:38:14,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 803 transitions. [2024-12-02 06:38:14,774 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 803 transitions. Word has length 109 [2024-12-02 06:38:14,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:14,775 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 803 transitions. [2024-12-02 06:38:14,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:14,775 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 803 transitions. [2024-12-02 06:38:14,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 06:38:14,777 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:14,777 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:14,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:38:14,778 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:14,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:14,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1746368490, now seen corresponding path program 1 times [2024-12-02 06:38:14,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:14,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306601592] [2024-12-02 06:38:14,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:14,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:16,195 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:16,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:16,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306601592] [2024-12-02 06:38:16,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306601592] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:16,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:16,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:38:16,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317023309] [2024-12-02 06:38:16,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:16,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:38:16,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:16,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:38:16,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:38:16,197 INFO L87 Difference]: Start difference. First operand 580 states and 803 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 06:38:16,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:16,837 INFO L93 Difference]: Finished difference Result 1141 states and 1575 transitions. [2024-12-02 06:38:16,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:38:16,838 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2024-12-02 06:38:16,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:16,840 INFO L225 Difference]: With dead ends: 1141 [2024-12-02 06:38:16,840 INFO L226 Difference]: Without dead ends: 589 [2024-12-02 06:38:16,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:38:16,842 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 235 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:16,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 911 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:38:16,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-12-02 06:38:16,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 582. [2024-12-02 06:38:16,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 491 states have (on average 1.3238289205702647) internal successors, (650), 496 states have internal predecessors, (650), 76 states have call successors, (76), 14 states have call predecessors, (76), 14 states have return successors, (76), 71 states have call predecessors, (76), 76 states have call successors, (76) [2024-12-02 06:38:16,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 802 transitions. [2024-12-02 06:38:16,878 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 802 transitions. Word has length 109 [2024-12-02 06:38:16,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:16,878 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 802 transitions. [2024-12-02 06:38:16,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 06:38:16,878 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 802 transitions. [2024-12-02 06:38:16,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 06:38:16,880 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:16,880 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:16,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 06:38:16,881 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:16,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:16,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1424477971, now seen corresponding path program 1 times [2024-12-02 06:38:16,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:16,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666948041] [2024-12-02 06:38:16,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:16,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:17,991 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:17,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:17,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666948041] [2024-12-02 06:38:17,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666948041] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:17,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:17,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 06:38:17,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248695775] [2024-12-02 06:38:17,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:17,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:38:17,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:17,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:38:17,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:38:17,993 INFO L87 Difference]: Start difference. First operand 582 states and 802 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 06:38:18,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:18,455 INFO L93 Difference]: Finished difference Result 1262 states and 1746 transitions. [2024-12-02 06:38:18,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:38:18,455 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2024-12-02 06:38:18,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:18,459 INFO L225 Difference]: With dead ends: 1262 [2024-12-02 06:38:18,459 INFO L226 Difference]: Without dead ends: 708 [2024-12-02 06:38:18,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:38:18,461 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 81 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:18,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 1070 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:38:18,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-12-02 06:38:18,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 620. [2024-12-02 06:38:18,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 529 states have (on average 1.33648393194707) internal successors, (707), 534 states have internal predecessors, (707), 76 states have call successors, (76), 14 states have call predecessors, (76), 14 states have return successors, (76), 71 states have call predecessors, (76), 76 states have call successors, (76) [2024-12-02 06:38:18,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 859 transitions. [2024-12-02 06:38:18,509 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 859 transitions. Word has length 109 [2024-12-02 06:38:18,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:18,510 INFO L471 AbstractCegarLoop]: Abstraction has 620 states and 859 transitions. [2024-12-02 06:38:18,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 06:38:18,510 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 859 transitions. [2024-12-02 06:38:18,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 06:38:18,511 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:18,511 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:18,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 06:38:18,512 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:18,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:18,512 INFO L85 PathProgramCache]: Analyzing trace with hash 403409617, now seen corresponding path program 1 times [2024-12-02 06:38:18,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:18,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104953195] [2024-12-02 06:38:18,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:18,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:19,006 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:19,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:19,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104953195] [2024-12-02 06:38:19,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104953195] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:19,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:19,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:38:19,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211957818] [2024-12-02 06:38:19,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:19,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:38:19,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:19,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:38:19,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:38:19,008 INFO L87 Difference]: Start difference. First operand 620 states and 859 transitions. Second operand has 7 states, 5 states have (on average 9.4) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 06:38:19,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:19,305 INFO L93 Difference]: Finished difference Result 1320 states and 1826 transitions. [2024-12-02 06:38:19,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:38:19,305 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.4) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 3 states have call successors, (13) Word has length 109 [2024-12-02 06:38:19,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:19,310 INFO L225 Difference]: With dead ends: 1320 [2024-12-02 06:38:19,310 INFO L226 Difference]: Without dead ends: 728 [2024-12-02 06:38:19,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:38:19,312 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 168 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:19,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 843 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:38:19,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2024-12-02 06:38:19,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 724. [2024-12-02 06:38:19,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 623 states have (on average 1.333868378812199) internal successors, (831), 630 states have internal predecessors, (831), 84 states have call successors, (84), 16 states have call predecessors, (84), 16 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2024-12-02 06:38:19,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 999 transitions. [2024-12-02 06:38:19,362 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 999 transitions. Word has length 109 [2024-12-02 06:38:19,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:19,363 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 999 transitions. [2024-12-02 06:38:19,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.4) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 06:38:19,363 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 999 transitions. [2024-12-02 06:38:19,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 06:38:19,364 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:19,365 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:19,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 06:38:19,365 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:19,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:19,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1643332689, now seen corresponding path program 1 times [2024-12-02 06:38:19,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:19,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657368711] [2024-12-02 06:38:19,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:19,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:19,823 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:19,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:19,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657368711] [2024-12-02 06:38:19,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657368711] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:19,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:19,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:38:19,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487652959] [2024-12-02 06:38:19,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:19,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:38:19,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:19,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:38:19,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:38:19,824 INFO L87 Difference]: Start difference. First operand 724 states and 999 transitions. Second operand has 7 states, 5 states have (on average 9.4) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 06:38:20,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:20,075 INFO L93 Difference]: Finished difference Result 1434 states and 1972 transitions. [2024-12-02 06:38:20,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 06:38:20,076 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.4) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 3 states have call successors, (13) Word has length 109 [2024-12-02 06:38:20,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:20,080 INFO L225 Difference]: With dead ends: 1434 [2024-12-02 06:38:20,080 INFO L226 Difference]: Without dead ends: 738 [2024-12-02 06:38:20,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:38:20,082 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 169 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:20,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 617 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:38:20,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2024-12-02 06:38:20,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 535. [2024-12-02 06:38:20,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 464 states have (on average 1.3405172413793103) internal successors, (622), 468 states have internal predecessors, (622), 57 states have call successors, (57), 13 states have call predecessors, (57), 13 states have return successors, (57), 53 states have call predecessors, (57), 57 states have call successors, (57) [2024-12-02 06:38:20,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 736 transitions. [2024-12-02 06:38:20,129 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 736 transitions. Word has length 109 [2024-12-02 06:38:20,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:20,129 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 736 transitions. [2024-12-02 06:38:20,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.4) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 06:38:20,129 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 736 transitions. [2024-12-02 06:38:20,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 06:38:20,130 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:20,130 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:20,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 06:38:20,131 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:20,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:20,131 INFO L85 PathProgramCache]: Analyzing trace with hash 622264335, now seen corresponding path program 1 times [2024-12-02 06:38:20,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:20,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179410334] [2024-12-02 06:38:20,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:20,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:20,543 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:20,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:20,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179410334] [2024-12-02 06:38:20,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179410334] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:20,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:20,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:38:20,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772396854] [2024-12-02 06:38:20,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:20,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:38:20,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:20,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:38:20,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:38:20,544 INFO L87 Difference]: Start difference. First operand 535 states and 736 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:20,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:20,865 INFO L93 Difference]: Finished difference Result 1233 states and 1690 transitions. [2024-12-02 06:38:20,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:38:20,866 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 109 [2024-12-02 06:38:20,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:20,870 INFO L225 Difference]: With dead ends: 1233 [2024-12-02 06:38:20,870 INFO L226 Difference]: Without dead ends: 726 [2024-12-02 06:38:20,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:38:20,872 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 130 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:20,872 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1179 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:38:20,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-12-02 06:38:20,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 464. [2024-12-02 06:38:20,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 405 states have (on average 1.3506172839506172) internal successors, (547), 408 states have internal predecessors, (547), 47 states have call successors, (47), 11 states have call predecessors, (47), 11 states have return successors, (47), 44 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 06:38:20,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 641 transitions. [2024-12-02 06:38:20,914 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 641 transitions. Word has length 109 [2024-12-02 06:38:20,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:20,915 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 641 transitions. [2024-12-02 06:38:20,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:20,915 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 641 transitions. [2024-12-02 06:38:20,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 06:38:20,916 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:20,916 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:20,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 06:38:20,916 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:20,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:20,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1648157893, now seen corresponding path program 1 times [2024-12-02 06:38:20,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:20,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866541146] [2024-12-02 06:38:20,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:20,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:21,101 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:21,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:21,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866541146] [2024-12-02 06:38:21,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866541146] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:21,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:21,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:38:21,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834657598] [2024-12-02 06:38:21,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:21,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:38:21,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:21,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:38:21,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:38:21,103 INFO L87 Difference]: Start difference. First operand 464 states and 641 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:21,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:21,263 INFO L93 Difference]: Finished difference Result 1042 states and 1448 transitions. [2024-12-02 06:38:21,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:38:21,264 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 111 [2024-12-02 06:38:21,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:21,267 INFO L225 Difference]: With dead ends: 1042 [2024-12-02 06:38:21,267 INFO L226 Difference]: Without dead ends: 616 [2024-12-02 06:38:21,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:38:21,269 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 110 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:21,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 503 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:38:21,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2024-12-02 06:38:21,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 544. [2024-12-02 06:38:21,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 485 states have (on average 1.3649484536082475) internal successors, (662), 487 states have internal predecessors, (662), 47 states have call successors, (47), 11 states have call predecessors, (47), 11 states have return successors, (47), 45 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 06:38:21,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 756 transitions. [2024-12-02 06:38:21,304 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 756 transitions. Word has length 111 [2024-12-02 06:38:21,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:21,304 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 756 transitions. [2024-12-02 06:38:21,304 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:21,305 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 756 transitions. [2024-12-02 06:38:21,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 06:38:21,305 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:21,306 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:21,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 06:38:21,306 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:21,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:21,306 INFO L85 PathProgramCache]: Analyzing trace with hash 898144979, now seen corresponding path program 1 times [2024-12-02 06:38:21,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:21,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386539864] [2024-12-02 06:38:21,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:21,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:21,423 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-12-02 06:38:21,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:21,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386539864] [2024-12-02 06:38:21,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386539864] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:38:21,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589900068] [2024-12-02 06:38:21,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:21,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:38:21,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:38:21,425 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:38:21,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 06:38:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:21,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 06:38:21,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:38:21,613 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:21,613 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:38:21,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589900068] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:21,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:38:21,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-12-02 06:38:21,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27146499] [2024-12-02 06:38:21,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:21,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:38:21,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:21,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:38:21,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:38:21,615 INFO L87 Difference]: Start difference. First operand 544 states and 756 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:21,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:21,662 INFO L93 Difference]: Finished difference Result 982 states and 1364 transitions. [2024-12-02 06:38:21,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:38:21,663 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 111 [2024-12-02 06:38:21,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:21,665 INFO L225 Difference]: With dead ends: 982 [2024-12-02 06:38:21,665 INFO L226 Difference]: Without dead ends: 556 [2024-12-02 06:38:21,666 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 112 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 06:38:21,667 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:21,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 535 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:38:21,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-12-02 06:38:21,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-12-02 06:38:21,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 497 states have (on average 1.3561368209255533) internal successors, (674), 499 states have internal predecessors, (674), 47 states have call successors, (47), 11 states have call predecessors, (47), 11 states have return successors, (47), 45 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 06:38:21,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 768 transitions. [2024-12-02 06:38:21,704 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 768 transitions. Word has length 111 [2024-12-02 06:38:21,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:21,704 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 768 transitions. [2024-12-02 06:38:21,704 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:21,704 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 768 transitions. [2024-12-02 06:38:21,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 06:38:21,705 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:21,705 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:21,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 06:38:21,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 06:38:21,906 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:21,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:21,906 INFO L85 PathProgramCache]: Analyzing trace with hash 15762643, now seen corresponding path program 1 times [2024-12-02 06:38:21,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:21,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24617485] [2024-12-02 06:38:21,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:21,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:22,299 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:22,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:22,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24617485] [2024-12-02 06:38:22,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24617485] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:22,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:22,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:38:22,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865436570] [2024-12-02 06:38:22,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:22,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:38:22,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:22,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:38:22,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:38:22,300 INFO L87 Difference]: Start difference. First operand 556 states and 768 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:22,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:22,407 INFO L93 Difference]: Finished difference Result 574 states and 788 transitions. [2024-12-02 06:38:22,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:38:22,407 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 113 [2024-12-02 06:38:22,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:22,410 INFO L225 Difference]: With dead ends: 574 [2024-12-02 06:38:22,410 INFO L226 Difference]: Without dead ends: 572 [2024-12-02 06:38:22,410 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:38:22,411 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 97 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:22,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 704 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:38:22,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-12-02 06:38:22,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2024-12-02 06:38:22,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 512 states have (on average 1.345703125) internal successors, (689), 514 states have internal predecessors, (689), 47 states have call successors, (47), 12 states have call predecessors, (47), 12 states have return successors, (47), 45 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 06:38:22,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 783 transitions. [2024-12-02 06:38:22,447 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 783 transitions. Word has length 113 [2024-12-02 06:38:22,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:22,447 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 783 transitions. [2024-12-02 06:38:22,447 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:22,447 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 783 transitions. [2024-12-02 06:38:22,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 06:38:22,448 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:22,448 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:22,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 06:38:22,448 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:22,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:22,449 INFO L85 PathProgramCache]: Analyzing trace with hash 17609685, now seen corresponding path program 1 times [2024-12-02 06:38:22,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:22,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269781876] [2024-12-02 06:38:22,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:22,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:22,805 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:22,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:22,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269781876] [2024-12-02 06:38:22,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269781876] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:22,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:22,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:38:22,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29334644] [2024-12-02 06:38:22,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:22,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:38:22,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:22,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:38:22,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:38:22,807 INFO L87 Difference]: Start difference. First operand 572 states and 783 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:23,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:23,074 INFO L93 Difference]: Finished difference Result 1030 states and 1406 transitions. [2024-12-02 06:38:23,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:38:23,074 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 113 [2024-12-02 06:38:23,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:23,077 INFO L225 Difference]: With dead ends: 1030 [2024-12-02 06:38:23,077 INFO L226 Difference]: Without dead ends: 576 [2024-12-02 06:38:23,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:38:23,078 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 130 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:23,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 760 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:38:23,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-12-02 06:38:23,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 572. [2024-12-02 06:38:23,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 512 states have (on average 1.341796875) internal successors, (687), 514 states have internal predecessors, (687), 47 states have call successors, (47), 12 states have call predecessors, (47), 12 states have return successors, (47), 45 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 06:38:23,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 781 transitions. [2024-12-02 06:38:23,111 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 781 transitions. Word has length 113 [2024-12-02 06:38:23,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:23,112 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 781 transitions. [2024-12-02 06:38:23,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:23,112 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 781 transitions. [2024-12-02 06:38:23,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 06:38:23,113 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:23,113 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:23,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 06:38:23,113 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:23,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:23,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1792617047, now seen corresponding path program 1 times [2024-12-02 06:38:23,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:23,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333932437] [2024-12-02 06:38:23,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:23,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:23,280 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:23,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:23,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333932437] [2024-12-02 06:38:23,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333932437] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:23,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:23,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:38:23,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707707417] [2024-12-02 06:38:23,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:23,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:38:23,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:23,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:38:23,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:38:23,281 INFO L87 Difference]: Start difference. First operand 572 states and 781 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:23,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:23,389 INFO L93 Difference]: Finished difference Result 1034 states and 1404 transitions. [2024-12-02 06:38:23,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:38:23,390 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 113 [2024-12-02 06:38:23,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:23,392 INFO L225 Difference]: With dead ends: 1034 [2024-12-02 06:38:23,393 INFO L226 Difference]: Without dead ends: 580 [2024-12-02 06:38:23,393 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 06:38:23,394 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 92 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:23,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 510 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:38:23,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-12-02 06:38:23,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2024-12-02 06:38:23,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 518 states have (on average 1.33011583011583) internal successors, (689), 520 states have internal predecessors, (689), 47 states have call successors, (47), 14 states have call predecessors, (47), 14 states have return successors, (47), 45 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 06:38:23,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 783 transitions. [2024-12-02 06:38:23,449 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 783 transitions. Word has length 113 [2024-12-02 06:38:23,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:23,449 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 783 transitions. [2024-12-02 06:38:23,449 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:23,449 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 783 transitions. [2024-12-02 06:38:23,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 06:38:23,450 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:23,451 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:23,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 06:38:23,451 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:23,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:23,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1822291879, now seen corresponding path program 1 times [2024-12-02 06:38:23,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:23,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719096931] [2024-12-02 06:38:23,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:23,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:23,614 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-12-02 06:38:23,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:23,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719096931] [2024-12-02 06:38:23,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719096931] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:38:23,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673076127] [2024-12-02 06:38:23,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:23,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:38:23,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:38:23,616 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:38:23,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 06:38:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:23,774 INFO L256 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 06:38:23,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:38:23,800 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:23,800 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:38:23,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673076127] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:23,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:38:23,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-12-02 06:38:23,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889370393] [2024-12-02 06:38:23,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:23,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:38:23,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:23,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:38:23,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:38:23,802 INFO L87 Difference]: Start difference. First operand 580 states and 783 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:23,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:23,839 INFO L93 Difference]: Finished difference Result 1054 states and 1418 transitions. [2024-12-02 06:38:23,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:38:23,840 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 113 [2024-12-02 06:38:23,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:23,841 INFO L225 Difference]: With dead ends: 1054 [2024-12-02 06:38:23,841 INFO L226 Difference]: Without dead ends: 592 [2024-12-02 06:38:23,842 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 06:38:23,842 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 536 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 06:38:23,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 536 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:38:23,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2024-12-02 06:38:23,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 592. [2024-12-02 06:38:23,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 530 states have (on average 1.3226415094339623) internal successors, (701), 532 states have internal predecessors, (701), 47 states have call successors, (47), 14 states have call predecessors, (47), 14 states have return successors, (47), 45 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 06:38:23,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 795 transitions. [2024-12-02 06:38:23,866 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 795 transitions. Word has length 113 [2024-12-02 06:38:23,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:23,866 INFO L471 AbstractCegarLoop]: Abstraction has 592 states and 795 transitions. [2024-12-02 06:38:23,867 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:23,867 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 795 transitions. [2024-12-02 06:38:23,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 06:38:23,867 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:23,867 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:23,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 06:38:24,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:38:24,068 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:24,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:24,068 INFO L85 PathProgramCache]: Analyzing trace with hash 310078142, now seen corresponding path program 1 times [2024-12-02 06:38:24,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:24,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486565429] [2024-12-02 06:38:24,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:24,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:24,180 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-12-02 06:38:24,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:24,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486565429] [2024-12-02 06:38:24,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486565429] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:38:24,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766862296] [2024-12-02 06:38:24,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:24,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:38:24,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:38:24,182 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:38:24,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 06:38:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:24,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 06:38:24,356 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:38:24,388 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:24,388 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:38:24,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766862296] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:24,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:38:24,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-12-02 06:38:24,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544829416] [2024-12-02 06:38:24,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:24,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:38:24,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:24,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:38:24,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:38:24,389 INFO L87 Difference]: Start difference. First operand 592 states and 795 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:24,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:24,441 INFO L93 Difference]: Finished difference Result 1082 states and 1446 transitions. [2024-12-02 06:38:24,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:38:24,442 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 116 [2024-12-02 06:38:24,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:24,444 INFO L225 Difference]: With dead ends: 1082 [2024-12-02 06:38:24,444 INFO L226 Difference]: Without dead ends: 608 [2024-12-02 06:38:24,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:38:24,446 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 0 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:24,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 665 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:38:24,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-12-02 06:38:24,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 596. [2024-12-02 06:38:24,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 534 states have (on average 1.3202247191011236) internal successors, (705), 536 states have internal predecessors, (705), 47 states have call successors, (47), 14 states have call predecessors, (47), 14 states have return successors, (47), 45 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 06:38:24,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 799 transitions. [2024-12-02 06:38:24,490 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 799 transitions. Word has length 116 [2024-12-02 06:38:24,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:24,490 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 799 transitions. [2024-12-02 06:38:24,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:24,490 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 799 transitions. [2024-12-02 06:38:24,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 06:38:24,491 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:24,491 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:24,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 06:38:24,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-12-02 06:38:24,692 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:24,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:24,693 INFO L85 PathProgramCache]: Analyzing trace with hash 211762456, now seen corresponding path program 1 times [2024-12-02 06:38:24,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:24,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420319546] [2024-12-02 06:38:24,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:24,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:24,963 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:24,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:24,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420319546] [2024-12-02 06:38:24,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420319546] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:24,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:24,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:38:24,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250173841] [2024-12-02 06:38:24,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:24,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:38:24,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:24,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:38:24,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:38:24,964 INFO L87 Difference]: Start difference. First operand 596 states and 799 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:25,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:25,137 INFO L93 Difference]: Finished difference Result 1078 states and 1438 transitions. [2024-12-02 06:38:25,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:38:25,137 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 118 [2024-12-02 06:38:25,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:25,140 INFO L225 Difference]: With dead ends: 1078 [2024-12-02 06:38:25,140 INFO L226 Difference]: Without dead ends: 600 [2024-12-02 06:38:25,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 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 06:38:25,142 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 87 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:25,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 445 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:38:25,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-12-02 06:38:25,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 596. [2024-12-02 06:38:25,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 534 states have (on average 1.3164794007490637) internal successors, (703), 536 states have internal predecessors, (703), 47 states have call successors, (47), 14 states have call predecessors, (47), 14 states have return successors, (47), 45 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 06:38:25,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 797 transitions. [2024-12-02 06:38:25,177 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 797 transitions. Word has length 118 [2024-12-02 06:38:25,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:25,178 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 797 transitions. [2024-12-02 06:38:25,178 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, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:25,178 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 797 transitions. [2024-12-02 06:38:25,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 06:38:25,179 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:25,179 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:25,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 06:38:25,179 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:25,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:25,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1656840533, now seen corresponding path program 1 times [2024-12-02 06:38:25,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:25,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225501375] [2024-12-02 06:38:25,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:25,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:25,494 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:25,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:25,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225501375] [2024-12-02 06:38:25,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225501375] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:25,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:25,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:38:25,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569448231] [2024-12-02 06:38:25,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:25,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:38:25,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:25,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:38:25,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:38:25,496 INFO L87 Difference]: Start difference. First operand 596 states and 797 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:25,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:25,680 INFO L93 Difference]: Finished difference Result 1078 states and 1434 transitions. [2024-12-02 06:38:25,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:38:25,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 122 [2024-12-02 06:38:25,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:25,683 INFO L225 Difference]: With dead ends: 1078 [2024-12-02 06:38:25,683 INFO L226 Difference]: Without dead ends: 600 [2024-12-02 06:38:25,683 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:38:25,684 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 179 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:25,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 430 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:38:25,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-12-02 06:38:25,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 596. [2024-12-02 06:38:25,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 534 states have (on average 1.3127340823970037) internal successors, (701), 536 states have internal predecessors, (701), 47 states have call successors, (47), 14 states have call predecessors, (47), 14 states have return successors, (47), 45 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 06:38:25,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 795 transitions. [2024-12-02 06:38:25,718 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 795 transitions. Word has length 122 [2024-12-02 06:38:25,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:25,719 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 795 transitions. [2024-12-02 06:38:25,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:25,719 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 795 transitions. [2024-12-02 06:38:25,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 06:38:25,720 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:25,720 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:25,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 06:38:25,720 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:25,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:25,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1999509487, now seen corresponding path program 1 times [2024-12-02 06:38:25,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:25,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251313883] [2024-12-02 06:38:25,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:25,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:26,049 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:26,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:26,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251313883] [2024-12-02 06:38:26,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251313883] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:26,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:26,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:38:26,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974189991] [2024-12-02 06:38:26,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:26,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:38:26,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:26,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:38:26,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:38:26,051 INFO L87 Difference]: Start difference. First operand 596 states and 795 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:26,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:26,264 INFO L93 Difference]: Finished difference Result 1078 states and 1430 transitions. [2024-12-02 06:38:26,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:38:26,264 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 123 [2024-12-02 06:38:26,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:26,266 INFO L225 Difference]: With dead ends: 1078 [2024-12-02 06:38:26,266 INFO L226 Difference]: Without dead ends: 600 [2024-12-02 06:38:26,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:38:26,267 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 175 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:26,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 429 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:38:26,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-12-02 06:38:26,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 596. [2024-12-02 06:38:26,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 534 states have (on average 1.3089887640449438) internal successors, (699), 536 states have internal predecessors, (699), 47 states have call successors, (47), 14 states have call predecessors, (47), 14 states have return successors, (47), 45 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 06:38:26,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 793 transitions. [2024-12-02 06:38:26,313 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 793 transitions. Word has length 123 [2024-12-02 06:38:26,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:26,313 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 793 transitions. [2024-12-02 06:38:26,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:26,314 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 793 transitions. [2024-12-02 06:38:26,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 06:38:26,315 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:26,315 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:26,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 06:38:26,315 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:26,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:26,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1268947704, now seen corresponding path program 1 times [2024-12-02 06:38:26,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:26,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848490982] [2024-12-02 06:38:26,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:26,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:26,688 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:26,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:26,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848490982] [2024-12-02 06:38:26,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848490982] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:26,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:26,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:38:26,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951408723] [2024-12-02 06:38:26,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:26,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:38:26,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:26,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:38:26,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:38:26,690 INFO L87 Difference]: Start difference. First operand 596 states and 793 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:26,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:26,929 INFO L93 Difference]: Finished difference Result 1078 states and 1426 transitions. [2024-12-02 06:38:26,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:38:26,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 124 [2024-12-02 06:38:26,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:26,932 INFO L225 Difference]: With dead ends: 1078 [2024-12-02 06:38:26,932 INFO L226 Difference]: Without dead ends: 600 [2024-12-02 06:38:26,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:38:26,933 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 83 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:26,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 542 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:38:26,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-12-02 06:38:26,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 596. [2024-12-02 06:38:26,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 534 states have (on average 1.3052434456928839) internal successors, (697), 536 states have internal predecessors, (697), 47 states have call successors, (47), 14 states have call predecessors, (47), 14 states have return successors, (47), 45 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 06:38:26,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 791 transitions. [2024-12-02 06:38:26,978 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 791 transitions. Word has length 124 [2024-12-02 06:38:26,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:26,979 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 791 transitions. [2024-12-02 06:38:26,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:26,979 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 791 transitions. [2024-12-02 06:38:26,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 06:38:26,980 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:26,980 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:26,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 06:38:26,981 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:26,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:26,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1094508302, now seen corresponding path program 1 times [2024-12-02 06:38:26,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:26,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398525089] [2024-12-02 06:38:26,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:26,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:27,818 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:27,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:27,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398525089] [2024-12-02 06:38:27,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398525089] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:27,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:27,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 06:38:27,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565553519] [2024-12-02 06:38:27,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:27,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 06:38:27,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:27,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 06:38:27,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:38:27,821 INFO L87 Difference]: Start difference. First operand 596 states and 791 transitions. Second operand has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:28,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:28,485 INFO L93 Difference]: Finished difference Result 1661 states and 2163 transitions. [2024-12-02 06:38:28,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 06:38:28,485 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 126 [2024-12-02 06:38:28,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:28,489 INFO L225 Difference]: With dead ends: 1661 [2024-12-02 06:38:28,489 INFO L226 Difference]: Without dead ends: 1183 [2024-12-02 06:38:28,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2024-12-02 06:38:28,491 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 143 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:28,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1214 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 06:38:28,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2024-12-02 06:38:28,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1025. [2024-12-02 06:38:28,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 917 states have (on average 1.271537622682661) internal successors, (1166), 921 states have internal predecessors, (1166), 81 states have call successors, (81), 26 states have call predecessors, (81), 26 states have return successors, (81), 77 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 06:38:28,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1328 transitions. [2024-12-02 06:38:28,557 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1328 transitions. Word has length 126 [2024-12-02 06:38:28,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:28,557 INFO L471 AbstractCegarLoop]: Abstraction has 1025 states and 1328 transitions. [2024-12-02 06:38:28,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:28,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1328 transitions. [2024-12-02 06:38:28,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 06:38:28,558 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:28,558 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:28,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 06:38:28,558 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:28,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:28,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1776312839, now seen corresponding path program 1 times [2024-12-02 06:38:28,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:28,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138733354] [2024-12-02 06:38:28,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:28,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:28,832 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:28,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:28,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138733354] [2024-12-02 06:38:28,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138733354] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:28,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:28,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:38:28,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839211470] [2024-12-02 06:38:28,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:28,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:38:28,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:28,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:38:28,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:38:28,834 INFO L87 Difference]: Start difference. First operand 1025 states and 1328 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:28,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:28,954 INFO L93 Difference]: Finished difference Result 1530 states and 1983 transitions. [2024-12-02 06:38:28,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:38:28,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 129 [2024-12-02 06:38:28,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:28,958 INFO L225 Difference]: With dead ends: 1530 [2024-12-02 06:38:28,959 INFO L226 Difference]: Without dead ends: 1031 [2024-12-02 06:38:28,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 06:38:28,960 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 94 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:28,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 359 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:38:28,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2024-12-02 06:38:29,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1025. [2024-12-02 06:38:29,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 917 states have (on average 1.262813522355507) internal successors, (1158), 921 states have internal predecessors, (1158), 81 states have call successors, (81), 26 states have call predecessors, (81), 26 states have return successors, (81), 77 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 06:38:29,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1320 transitions. [2024-12-02 06:38:29,006 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1320 transitions. Word has length 129 [2024-12-02 06:38:29,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:29,006 INFO L471 AbstractCegarLoop]: Abstraction has 1025 states and 1320 transitions. [2024-12-02 06:38:29,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:29,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1320 transitions. [2024-12-02 06:38:29,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 06:38:29,007 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:29,007 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:29,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 06:38:29,008 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:29,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:29,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1874605513, now seen corresponding path program 1 times [2024-12-02 06:38:29,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:29,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813982817] [2024-12-02 06:38:29,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:29,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:29,186 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:29,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:29,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813982817] [2024-12-02 06:38:29,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813982817] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:29,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:29,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:38:29,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538691951] [2024-12-02 06:38:29,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:29,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:38:29,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:29,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:38:29,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:38:29,187 INFO L87 Difference]: Start difference. First operand 1025 states and 1320 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:29,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:29,331 INFO L93 Difference]: Finished difference Result 1542 states and 1991 transitions. [2024-12-02 06:38:29,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:38:29,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 132 [2024-12-02 06:38:29,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:29,336 INFO L225 Difference]: With dead ends: 1542 [2024-12-02 06:38:29,337 INFO L226 Difference]: Without dead ends: 1031 [2024-12-02 06:38:29,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 06:38:29,338 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 95 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:29,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 346 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:38:29,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2024-12-02 06:38:29,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1025. [2024-12-02 06:38:29,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 917 states have (on average 1.2540894220283534) internal successors, (1150), 921 states have internal predecessors, (1150), 81 states have call successors, (81), 26 states have call predecessors, (81), 26 states have return successors, (81), 77 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 06:38:29,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1312 transitions. [2024-12-02 06:38:29,404 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1312 transitions. Word has length 132 [2024-12-02 06:38:29,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:29,404 INFO L471 AbstractCegarLoop]: Abstraction has 1025 states and 1312 transitions. [2024-12-02 06:38:29,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:29,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1312 transitions. [2024-12-02 06:38:29,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 06:38:29,405 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:29,406 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:29,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 06:38:29,406 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:29,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:29,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1990734427, now seen corresponding path program 1 times [2024-12-02 06:38:29,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:29,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281213218] [2024-12-02 06:38:29,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:29,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:29,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:29,700 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:29,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:29,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281213218] [2024-12-02 06:38:29,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281213218] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:29,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:29,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:38:29,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669885763] [2024-12-02 06:38:29,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:29,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:38:29,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:29,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:38:29,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:38:29,702 INFO L87 Difference]: Start difference. First operand 1025 states and 1312 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:29,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:29,921 INFO L93 Difference]: Finished difference Result 1542 states and 1979 transitions. [2024-12-02 06:38:29,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:38:29,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 133 [2024-12-02 06:38:29,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:29,925 INFO L225 Difference]: With dead ends: 1542 [2024-12-02 06:38:29,925 INFO L226 Difference]: Without dead ends: 1031 [2024-12-02 06:38:29,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 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 06:38:29,926 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 93 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:29,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 438 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:38:29,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2024-12-02 06:38:29,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1025. [2024-12-02 06:38:29,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 917 states have (on average 1.2453653217011995) internal successors, (1142), 921 states have internal predecessors, (1142), 81 states have call successors, (81), 26 states have call predecessors, (81), 26 states have return successors, (81), 77 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 06:38:29,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1304 transitions. [2024-12-02 06:38:29,975 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1304 transitions. Word has length 133 [2024-12-02 06:38:29,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:29,975 INFO L471 AbstractCegarLoop]: Abstraction has 1025 states and 1304 transitions. [2024-12-02 06:38:29,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:29,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1304 transitions. [2024-12-02 06:38:29,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 06:38:29,978 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:29,978 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:29,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 06:38:29,978 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:29,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:29,979 INFO L85 PathProgramCache]: Analyzing trace with hash -2009906548, now seen corresponding path program 1 times [2024-12-02 06:38:29,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:29,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601379237] [2024-12-02 06:38:29,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:29,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:30,288 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:30,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:30,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601379237] [2024-12-02 06:38:30,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601379237] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:30,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:30,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:38:30,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702325654] [2024-12-02 06:38:30,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:30,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:38:30,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:30,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:38:30,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:38:30,290 INFO L87 Difference]: Start difference. First operand 1025 states and 1304 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:30,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:30,507 INFO L93 Difference]: Finished difference Result 1530 states and 1947 transitions. [2024-12-02 06:38:30,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:38:30,508 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 134 [2024-12-02 06:38:30,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:30,512 INFO L225 Difference]: With dead ends: 1530 [2024-12-02 06:38:30,512 INFO L226 Difference]: Without dead ends: 1031 [2024-12-02 06:38:30,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:38:30,513 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 90 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:30,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 541 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:38:30,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2024-12-02 06:38:30,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1025. [2024-12-02 06:38:30,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 917 states have (on average 1.2366412213740459) internal successors, (1134), 921 states have internal predecessors, (1134), 81 states have call successors, (81), 26 states have call predecessors, (81), 26 states have return successors, (81), 77 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 06:38:30,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1296 transitions. [2024-12-02 06:38:30,566 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1296 transitions. Word has length 134 [2024-12-02 06:38:30,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:30,566 INFO L471 AbstractCegarLoop]: Abstraction has 1025 states and 1296 transitions. [2024-12-02 06:38:30,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:30,566 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1296 transitions. [2024-12-02 06:38:30,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 06:38:30,567 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:30,567 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:30,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 06:38:30,567 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:30,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:30,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1690932808, now seen corresponding path program 1 times [2024-12-02 06:38:30,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:30,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354048392] [2024-12-02 06:38:30,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:30,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:31,080 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:31,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:31,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354048392] [2024-12-02 06:38:31,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354048392] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:31,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:31,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:38:31,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570127035] [2024-12-02 06:38:31,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:31,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:38:31,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:31,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:38:31,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:38:31,081 INFO L87 Difference]: Start difference. First operand 1025 states and 1296 transitions. Second operand has 7 states, 5 states have (on average 14.8) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 06:38:31,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:31,303 INFO L93 Difference]: Finished difference Result 1517 states and 1920 transitions. [2024-12-02 06:38:31,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:38:31,304 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 14.8) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 3 states have call successors, (13) Word has length 136 [2024-12-02 06:38:31,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:31,307 INFO L225 Difference]: With dead ends: 1517 [2024-12-02 06:38:31,307 INFO L226 Difference]: Without dead ends: 1031 [2024-12-02 06:38:31,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:38:31,308 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 151 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:31,308 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 594 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:38:31,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2024-12-02 06:38:31,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1025. [2024-12-02 06:38:31,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 917 states have (on average 1.2333696837513632) internal successors, (1131), 921 states have internal predecessors, (1131), 81 states have call successors, (81), 26 states have call predecessors, (81), 26 states have return successors, (81), 77 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 06:38:31,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1293 transitions. [2024-12-02 06:38:31,353 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1293 transitions. Word has length 136 [2024-12-02 06:38:31,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:31,353 INFO L471 AbstractCegarLoop]: Abstraction has 1025 states and 1293 transitions. [2024-12-02 06:38:31,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 14.8) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 06:38:31,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1293 transitions. [2024-12-02 06:38:31,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 06:38:31,354 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:31,354 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:31,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 06:38:31,354 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:31,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:31,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1031401286, now seen corresponding path program 1 times [2024-12-02 06:38:31,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:31,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966161629] [2024-12-02 06:38:31,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:31,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:32,371 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 06:38:32,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:32,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966161629] [2024-12-02 06:38:32,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966161629] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:32,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:32,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 06:38:32,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977903625] [2024-12-02 06:38:32,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:32,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 06:38:32,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:32,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 06:38:32,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-12-02 06:38:32,373 INFO L87 Difference]: Start difference. First operand 1025 states and 1293 transitions. Second operand has 16 states, 16 states have (on average 4.625) internal successors, (74), 16 states have internal predecessors, (74), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:33,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:33,289 INFO L93 Difference]: Finished difference Result 2313 states and 2934 transitions. [2024-12-02 06:38:33,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-12-02 06:38:33,289 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.625) internal successors, (74), 16 states have internal predecessors, (74), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 136 [2024-12-02 06:38:33,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:33,294 INFO L225 Difference]: With dead ends: 2313 [2024-12-02 06:38:33,294 INFO L226 Difference]: Without dead ends: 1835 [2024-12-02 06:38:33,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=175, Invalid=1015, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 06:38:33,296 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 532 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:33,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 1438 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 06:38:33,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1835 states. [2024-12-02 06:38:33,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1835 to 804. [2024-12-02 06:38:33,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 719 states have (on average 1.250347705146036) internal successors, (899), 722 states have internal predecessors, (899), 64 states have call successors, (64), 20 states have call predecessors, (64), 20 states have return successors, (64), 61 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 06:38:33,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1027 transitions. [2024-12-02 06:38:33,338 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1027 transitions. Word has length 136 [2024-12-02 06:38:33,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:33,339 INFO L471 AbstractCegarLoop]: Abstraction has 804 states and 1027 transitions. [2024-12-02 06:38:33,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.625) internal successors, (74), 16 states have internal predecessors, (74), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:33,339 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1027 transitions. [2024-12-02 06:38:33,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-12-02 06:38:33,341 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:33,341 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:33,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 06:38:33,341 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:33,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:33,341 INFO L85 PathProgramCache]: Analyzing trace with hash -126764528, now seen corresponding path program 1 times [2024-12-02 06:38:33,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:33,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418635144] [2024-12-02 06:38:33,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:33,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:35,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1351 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1331 trivial. 0 not checked. [2024-12-02 06:38:35,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:35,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418635144] [2024-12-02 06:38:35,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418635144] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:35,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:35,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:38:35,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511674527] [2024-12-02 06:38:35,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:35,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:38:35,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:35,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:38:35,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:38:35,220 INFO L87 Difference]: Start difference. First operand 804 states and 1027 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:35,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:35,529 INFO L93 Difference]: Finished difference Result 1506 states and 1927 transitions. [2024-12-02 06:38:35,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:38:35,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 221 [2024-12-02 06:38:35,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:35,534 INFO L225 Difference]: With dead ends: 1506 [2024-12-02 06:38:35,534 INFO L226 Difference]: Without dead ends: 1044 [2024-12-02 06:38:35,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:38:35,535 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 107 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:35,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 607 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:38:35,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2024-12-02 06:38:35,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 792. [2024-12-02 06:38:35,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 707 states have (on average 1.2404526166902405) internal successors, (877), 710 states have internal predecessors, (877), 64 states have call successors, (64), 20 states have call predecessors, (64), 20 states have return successors, (64), 61 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 06:38:35,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1005 transitions. [2024-12-02 06:38:35,580 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1005 transitions. Word has length 221 [2024-12-02 06:38:35,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:35,580 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 1005 transitions. [2024-12-02 06:38:35,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:35,580 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1005 transitions. [2024-12-02 06:38:35,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-12-02 06:38:35,581 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:35,582 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:35,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 06:38:35,582 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:35,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:35,582 INFO L85 PathProgramCache]: Analyzing trace with hash -747374768, now seen corresponding path program 1 times [2024-12-02 06:38:35,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:35,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141057058] [2024-12-02 06:38:35,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:35,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:39,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1351 backedges. 94 proven. 32 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-12-02 06:38:39,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:39,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141057058] [2024-12-02 06:38:39,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141057058] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:38:39,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076510640] [2024-12-02 06:38:39,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:39,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:38:39,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:38:39,193 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:38:39,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 06:38:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:39,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 06:38:39,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:38:39,564 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 06:38:39,630 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 61 treesize of output 31 [2024-12-02 06:38:39,647 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 06:38:39,991 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 80 treesize of output 44 [2024-12-02 06:38:40,050 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 75 treesize of output 43 [2024-12-02 06:38:40,060 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 25 treesize of output 17 [2024-12-02 06:38:40,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1351 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 1330 trivial. 0 not checked. [2024-12-02 06:38:40,180 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:38:40,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076510640] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:40,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:38:40,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 19 [2024-12-02 06:38:40,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535493746] [2024-12-02 06:38:40,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:40,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:38:40,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:40,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:38:40,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:38:40,183 INFO L87 Difference]: Start difference. First operand 792 states and 1005 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:40,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:40,910 INFO L93 Difference]: Finished difference Result 1490 states and 1892 transitions. [2024-12-02 06:38:40,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:38:40,911 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 221 [2024-12-02 06:38:40,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:40,915 INFO L225 Difference]: With dead ends: 1490 [2024-12-02 06:38:40,915 INFO L226 Difference]: Without dead ends: 1040 [2024-12-02 06:38:40,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2024-12-02 06:38:40,916 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 238 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:40,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 586 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:38:40,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2024-12-02 06:38:40,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 788. [2024-12-02 06:38:40,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 702 states have (on average 1.2307692307692308) internal successors, (864), 705 states have internal predecessors, (864), 64 states have call successors, (64), 21 states have call predecessors, (64), 21 states have return successors, (64), 61 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 06:38:40,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 992 transitions. [2024-12-02 06:38:40,970 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 992 transitions. Word has length 221 [2024-12-02 06:38:40,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:40,971 INFO L471 AbstractCegarLoop]: Abstraction has 788 states and 992 transitions. [2024-12-02 06:38:40,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:40,971 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 992 transitions. [2024-12-02 06:38:40,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-12-02 06:38:40,972 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:40,972 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:40,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 06:38:41,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-12-02 06:38:41,173 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:41,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:41,174 INFO L85 PathProgramCache]: Analyzing trace with hash -2112920029, now seen corresponding path program 1 times [2024-12-02 06:38:41,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:41,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633805714] [2024-12-02 06:38:41,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:41,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:41,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1355 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 1329 trivial. 0 not checked. [2024-12-02 06:38:41,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:41,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633805714] [2024-12-02 06:38:41,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633805714] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:41,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:41,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:38:41,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417389590] [2024-12-02 06:38:41,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:41,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:38:41,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:41,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:38:41,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:38:41,305 INFO L87 Difference]: Start difference. First operand 788 states and 992 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:41,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:41,378 INFO L93 Difference]: Finished difference Result 1702 states and 2172 transitions. [2024-12-02 06:38:41,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:38:41,379 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 223 [2024-12-02 06:38:41,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:41,383 INFO L225 Difference]: With dead ends: 1702 [2024-12-02 06:38:41,383 INFO L226 Difference]: Without dead ends: 1036 [2024-12-02 06:38:41,384 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 06:38:41,385 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 72 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:41,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 412 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:38:41,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2024-12-02 06:38:41,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 805. [2024-12-02 06:38:41,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 719 states have (on average 1.2573018080667593) internal successors, (904), 722 states have internal predecessors, (904), 64 states have call successors, (64), 21 states have call predecessors, (64), 21 states have return successors, (64), 61 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 06:38:41,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1032 transitions. [2024-12-02 06:38:41,444 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1032 transitions. Word has length 223 [2024-12-02 06:38:41,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:41,444 INFO L471 AbstractCegarLoop]: Abstraction has 805 states and 1032 transitions. [2024-12-02 06:38:41,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:41,444 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1032 transitions. [2024-12-02 06:38:41,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-12-02 06:38:41,445 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:41,445 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:41,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 06:38:41,446 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:41,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:41,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1638862907, now seen corresponding path program 1 times [2024-12-02 06:38:41,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:41,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701312260] [2024-12-02 06:38:41,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:41,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:41,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1357 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1329 trivial. 0 not checked. [2024-12-02 06:38:41,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:41,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701312260] [2024-12-02 06:38:41,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701312260] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:41,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:41,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:38:41,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364528899] [2024-12-02 06:38:41,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:41,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:38:41,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:41,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:38:41,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:38:41,588 INFO L87 Difference]: Start difference. First operand 805 states and 1032 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:41,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:41,664 INFO L93 Difference]: Finished difference Result 1523 states and 1972 transitions. [2024-12-02 06:38:41,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:38:41,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 225 [2024-12-02 06:38:41,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:41,669 INFO L225 Difference]: With dead ends: 1523 [2024-12-02 06:38:41,670 INFO L226 Difference]: Without dead ends: 959 [2024-12-02 06:38:41,670 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 06:38:41,671 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 75 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:41,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 531 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:38:41,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2024-12-02 06:38:41,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 805. [2024-12-02 06:38:41,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 719 states have (on average 1.2517385257301807) internal successors, (900), 722 states have internal predecessors, (900), 64 states have call successors, (64), 21 states have call predecessors, (64), 21 states have return successors, (64), 61 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 06:38:41,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1028 transitions. [2024-12-02 06:38:41,736 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1028 transitions. Word has length 225 [2024-12-02 06:38:41,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:41,736 INFO L471 AbstractCegarLoop]: Abstraction has 805 states and 1028 transitions. [2024-12-02 06:38:41,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:41,736 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1028 transitions. [2024-12-02 06:38:41,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-12-02 06:38:41,737 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:41,737 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:41,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 06:38:41,738 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:41,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:41,738 INFO L85 PathProgramCache]: Analyzing trace with hash 106763262, now seen corresponding path program 1 times [2024-12-02 06:38:41,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:41,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684230973] [2024-12-02 06:38:41,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:41,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:43,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1355 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 1329 trivial. 0 not checked. [2024-12-02 06:38:43,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:43,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684230973] [2024-12-02 06:38:43,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684230973] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:43,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:43,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 06:38:43,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989194908] [2024-12-02 06:38:43,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:43,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 06:38:43,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:43,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 06:38:43,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 06:38:43,157 INFO L87 Difference]: Start difference. First operand 805 states and 1028 transitions. Second operand has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 06:38:43,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:43,620 INFO L93 Difference]: Finished difference Result 1765 states and 2279 transitions. [2024-12-02 06:38:43,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 06:38:43,621 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 225 [2024-12-02 06:38:43,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:43,624 INFO L225 Difference]: With dead ends: 1765 [2024-12-02 06:38:43,625 INFO L226 Difference]: Without dead ends: 1201 [2024-12-02 06:38:43,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-12-02 06:38:43,626 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 100 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1830 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:43,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1830 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:38:43,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2024-12-02 06:38:43,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 1197. [2024-12-02 06:38:43,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1197 states, 1083 states have (on average 1.260387811634349) internal successors, (1365), 1090 states have internal predecessors, (1365), 84 states have call successors, (84), 29 states have call predecessors, (84), 29 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2024-12-02 06:38:43,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1533 transitions. [2024-12-02 06:38:43,733 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1533 transitions. Word has length 225 [2024-12-02 06:38:43,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:43,734 INFO L471 AbstractCegarLoop]: Abstraction has 1197 states and 1533 transitions. [2024-12-02 06:38:43,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 06:38:43,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1533 transitions. [2024-12-02 06:38:43,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-12-02 06:38:43,736 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:43,737 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:43,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 06:38:43,737 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:43,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:43,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1173100416, now seen corresponding path program 1 times [2024-12-02 06:38:43,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:43,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908654370] [2024-12-02 06:38:43,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:43,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:44,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1355 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 1329 trivial. 0 not checked. [2024-12-02 06:38:44,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:44,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908654370] [2024-12-02 06:38:44,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908654370] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:44,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:44,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:38:44,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503840058] [2024-12-02 06:38:44,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:44,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:38:44,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:44,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:38:44,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:38:44,378 INFO L87 Difference]: Start difference. First operand 1197 states and 1533 transitions. Second operand has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 06:38:44,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:44,607 INFO L93 Difference]: Finished difference Result 2133 states and 2752 transitions. [2024-12-02 06:38:44,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:38:44,607 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 225 [2024-12-02 06:38:44,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:44,611 INFO L225 Difference]: With dead ends: 2133 [2024-12-02 06:38:44,611 INFO L226 Difference]: Without dead ends: 1177 [2024-12-02 06:38:44,612 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:38:44,613 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 94 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:44,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 926 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:38:44,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2024-12-02 06:38:44,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1173. [2024-12-02 06:38:44,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1059 states have (on average 1.2587346553352219) internal successors, (1333), 1066 states have internal predecessors, (1333), 84 states have call successors, (84), 29 states have call predecessors, (84), 29 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2024-12-02 06:38:44,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1501 transitions. [2024-12-02 06:38:44,702 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1501 transitions. Word has length 225 [2024-12-02 06:38:44,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:44,703 INFO L471 AbstractCegarLoop]: Abstraction has 1173 states and 1501 transitions. [2024-12-02 06:38:44,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 06:38:44,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1501 transitions. [2024-12-02 06:38:44,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-12-02 06:38:44,704 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:44,704 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:44,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 06:38:44,705 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:44,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:44,705 INFO L85 PathProgramCache]: Analyzing trace with hash 129395516, now seen corresponding path program 1 times [2024-12-02 06:38:44,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:44,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217501926] [2024-12-02 06:38:44,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:44,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:45,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1355 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 1329 trivial. 0 not checked. [2024-12-02 06:38:45,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:45,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217501926] [2024-12-02 06:38:45,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217501926] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:45,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:45,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:38:45,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285659812] [2024-12-02 06:38:45,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:45,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:38:45,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:45,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:38:45,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:38:45,303 INFO L87 Difference]: Start difference. First operand 1173 states and 1501 transitions. Second operand has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 06:38:45,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:45,546 INFO L93 Difference]: Finished difference Result 2337 states and 2999 transitions. [2024-12-02 06:38:45,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:38:45,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 225 [2024-12-02 06:38:45,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:45,554 INFO L225 Difference]: With dead ends: 2337 [2024-12-02 06:38:45,554 INFO L226 Difference]: Without dead ends: 1405 [2024-12-02 06:38:45,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:38:45,557 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 97 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:45,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 853 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:38:45,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2024-12-02 06:38:45,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1177. [2024-12-02 06:38:45,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 1062 states have (on average 1.2542372881355932) internal successors, (1332), 1069 states have internal predecessors, (1332), 84 states have call successors, (84), 30 states have call predecessors, (84), 30 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2024-12-02 06:38:45,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1500 transitions. [2024-12-02 06:38:45,639 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1500 transitions. Word has length 225 [2024-12-02 06:38:45,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:45,640 INFO L471 AbstractCegarLoop]: Abstraction has 1177 states and 1500 transitions. [2024-12-02 06:38:45,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 06:38:45,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1500 transitions. [2024-12-02 06:38:45,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-12-02 06:38:45,641 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:45,641 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:45,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 06:38:45,641 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:45,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:45,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1150468162, now seen corresponding path program 1 times [2024-12-02 06:38:45,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:45,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881580268] [2024-12-02 06:38:45,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:45,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:47,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1355 backedges. 104 proven. 12 refuted. 0 times theorem prover too weak. 1239 trivial. 0 not checked. [2024-12-02 06:38:47,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:47,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881580268] [2024-12-02 06:38:47,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881580268] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:38:47,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036585716] [2024-12-02 06:38:47,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:47,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:38:47,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:38:47,829 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:38:47,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 06:38:48,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:48,153 INFO L256 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 06:38:48,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:38:48,228 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 81 treesize of output 47 [2024-12-02 06:38:48,530 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:38:48,530 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 32 [2024-12-02 06:38:48,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1355 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1333 trivial. 0 not checked. [2024-12-02 06:38:48,572 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:38:48,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036585716] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:48,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:38:48,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [15] total 19 [2024-12-02 06:38:48,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590778313] [2024-12-02 06:38:48,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:48,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 06:38:48,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:48,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 06:38:48,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:38:48,574 INFO L87 Difference]: Start difference. First operand 1177 states and 1500 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:49,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:49,089 INFO L93 Difference]: Finished difference Result 2345 states and 3001 transitions. [2024-12-02 06:38:49,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 06:38:49,089 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 225 [2024-12-02 06:38:49,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:49,096 INFO L225 Difference]: With dead ends: 2345 [2024-12-02 06:38:49,096 INFO L226 Difference]: Without dead ends: 1413 [2024-12-02 06:38:49,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2024-12-02 06:38:49,098 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 99 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:49,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 1504 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:38:49,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2024-12-02 06:38:49,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1409. [2024-12-02 06:38:49,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1409 states, 1260 states have (on average 1.246031746031746) internal successors, (1570), 1271 states have internal predecessors, (1570), 108 states have call successors, (108), 40 states have call predecessors, (108), 40 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 06:38:49,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 1786 transitions. [2024-12-02 06:38:49,246 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 1786 transitions. Word has length 225 [2024-12-02 06:38:49,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:49,246 INFO L471 AbstractCegarLoop]: Abstraction has 1409 states and 1786 transitions. [2024-12-02 06:38:49,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:49,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 1786 transitions. [2024-12-02 06:38:49,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-12-02 06:38:49,248 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:49,248 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:49,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 06:38:49,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-12-02 06:38:49,448 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:49,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:49,449 INFO L85 PathProgramCache]: Analyzing trace with hash -291008960, now seen corresponding path program 1 times [2024-12-02 06:38:49,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:49,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472510224] [2024-12-02 06:38:49,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:49,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:50,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1357 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 1331 trivial. 0 not checked. [2024-12-02 06:38:50,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:50,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472510224] [2024-12-02 06:38:50,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472510224] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:38:50,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:38:50,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:38:50,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634815749] [2024-12-02 06:38:50,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:38:50,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:38:50,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:50,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:38:50,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:38:50,183 INFO L87 Difference]: Start difference. First operand 1409 states and 1786 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:50,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:50,464 INFO L93 Difference]: Finished difference Result 2574 states and 3281 transitions. [2024-12-02 06:38:50,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:38:50,465 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 227 [2024-12-02 06:38:50,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:50,469 INFO L225 Difference]: With dead ends: 2574 [2024-12-02 06:38:50,469 INFO L226 Difference]: Without dead ends: 1410 [2024-12-02 06:38:50,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:38:50,471 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 111 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:50,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 598 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:38:50,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-12-02 06:38:50,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1409. [2024-12-02 06:38:50,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1409 states, 1260 states have (on average 1.2365079365079366) internal successors, (1558), 1271 states have internal predecessors, (1558), 108 states have call successors, (108), 40 states have call predecessors, (108), 40 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 06:38:50,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 1774 transitions. [2024-12-02 06:38:50,586 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 1774 transitions. Word has length 227 [2024-12-02 06:38:50,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:50,587 INFO L471 AbstractCegarLoop]: Abstraction has 1409 states and 1774 transitions. [2024-12-02 06:38:50,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 06:38:50,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 1774 transitions. [2024-12-02 06:38:50,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-12-02 06:38:50,589 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:38:50,590 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:50,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 06:38:50,590 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:38:50,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:38:50,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1179856269, now seen corresponding path program 1 times [2024-12-02 06:38:50,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:38:50,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795480221] [2024-12-02 06:38:50,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:50,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:38:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:51,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1357 backedges. 95 proven. 33 refuted. 0 times theorem prover too weak. 1229 trivial. 0 not checked. [2024-12-02 06:38:51,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:38:51,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795480221] [2024-12-02 06:38:51,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795480221] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:38:51,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509448435] [2024-12-02 06:38:51,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:38:51,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:38:51,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:38:51,343 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:38:51,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 06:38:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:38:51,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 06:38:51,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:38:51,737 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 29 treesize of output 13 [2024-12-02 06:38:51,772 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 29 treesize of output 13 [2024-12-02 06:38:51,938 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 29 treesize of output 13 [2024-12-02 06:38:51,984 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 35 treesize of output 23 [2024-12-02 06:38:51,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1357 backedges. 722 proven. 33 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2024-12-02 06:38:51,988 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:38:52,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1357 backedges. 95 proven. 33 refuted. 0 times theorem prover too weak. 1229 trivial. 0 not checked. [2024-12-02 06:38:52,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509448435] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:38:52,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:38:52,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 10 [2024-12-02 06:38:52,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802095664] [2024-12-02 06:38:52,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:38:52,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:38:52,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:38:52,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:38:52,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:38:52,308 INFO L87 Difference]: Start difference. First operand 1409 states and 1774 transitions. Second operand has 10 states, 8 states have (on average 14.125) internal successors, (113), 10 states have internal predecessors, (113), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (37), 2 states have call predecessors, (37), 4 states have call successors, (37) [2024-12-02 06:38:52,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:38:52,708 INFO L93 Difference]: Finished difference Result 2553 states and 3181 transitions. [2024-12-02 06:38:52,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 06:38:52,709 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 14.125) internal successors, (113), 10 states have internal predecessors, (113), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (37), 2 states have call predecessors, (37), 4 states have call successors, (37) Word has length 232 [2024-12-02 06:38:52,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:38:52,710 INFO L225 Difference]: With dead ends: 2553 [2024-12-02 06:38:52,710 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 06:38:52,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 462 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2024-12-02 06:38:52,712 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 97 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:38:52,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 350 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:38:52,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 06:38:52,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 06:38:52,713 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 06:38:52,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 06:38:52,714 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 232 [2024-12-02 06:38:52,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:38:52,714 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 06:38:52,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 14.125) internal successors, (113), 10 states have internal predecessors, (113), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (37), 2 states have call predecessors, (37), 4 states have call successors, (37) [2024-12-02 06:38:52,714 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 06:38:52,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 06:38:52,717 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 06:38:52,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 06:38:52,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:38:52,922 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:38:52,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 06:39:16,658 WARN L286 SmtUtils]: Spent 11.62s on a formula simplification. DAG size of input: 604 DAG size of output: 94 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 06:39:32,350 WARN L286 SmtUtils]: Spent 12.42s on a formula simplification. DAG size of input: 600 DAG size of output: 85 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 06:39:32,354 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 06:39:32,365 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-12-02 06:39:32,366 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-12-02 06:39:32,366 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#BOOL_unsigned_char_Array_0~0!base,GLOBAL]]] [2024-12-02 06:39:32,368 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-12-02 06:39:32,368 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-12-02 06:39:32,369 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#BOOL_unsigned_char_Array_0~0!base,GLOBAL]]] [2024-12-02 06:39:32,369 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#5 [2024-12-02 06:39:32,369 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#5,GLOBAL] [2024-12-02 06:39:32,369 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#5,GLOBAL],[IdentifierExpression[~#unsigned_short_int_Array_0~0!base,GLOBAL]]] [2024-12-02 06:39:32,369 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#2 [2024-12-02 06:39:32,369 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-12-02 06:39:32,369 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#signed_char_Array_0~0!base,GLOBAL]]] [2024-12-02 06:39:32,369 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-12-02 06:39:32,369 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-12-02 06:39:32,369 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#BOOL_unsigned_char_Array_0~0!base,GLOBAL]]] [2024-12-02 06:39:32,370 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#5 [2024-12-02 06:39:32,370 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#5,GLOBAL] [2024-12-02 06:39:32,370 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#5,GLOBAL],[IdentifierExpression[~#unsigned_short_int_Array_0~0!base,GLOBAL]]] [2024-12-02 06:39:32,370 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#2 [2024-12-02 06:39:32,370 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-12-02 06:39:32,370 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#signed_char_Array_0~0!base,GLOBAL]]] [2024-12-02 06:39:32,370 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#2 [2024-12-02 06:39:32,370 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-12-02 06:39:32,371 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#signed_char_Array_0~0!base,GLOBAL]]] [2024-12-02 06:39:32,371 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4 [2024-12-02 06:39:32,371 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL] [2024-12-02 06:39:32,371 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 06:39:32,371 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-12-02 06:39:32,371 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-12-02 06:39:32,371 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#BOOL_unsigned_char_Array_0~0!base,GLOBAL]]] [2024-12-02 06:39:32,371 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#5 [2024-12-02 06:39:32,371 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#5,GLOBAL] [2024-12-02 06:39:32,371 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#5,GLOBAL],[IdentifierExpression[~#unsigned_short_int_Array_0~0!base,GLOBAL]]] [2024-12-02 06:39:32,371 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4 [2024-12-02 06:39:32,371 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL] [2024-12-02 06:39:32,371 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 06:39:32,372 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-12-02 06:39:32,372 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-12-02 06:39:32,372 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#BOOL_unsigned_char_Array_0~0!base,GLOBAL]]] [2024-12-02 06:39:32,372 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#5 [2024-12-02 06:39:32,372 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#5,GLOBAL] [2024-12-02 06:39:32,372 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#5,GLOBAL],[IdentifierExpression[~#unsigned_short_int_Array_0~0!base,GLOBAL]]] [2024-12-02 06:39:32,372 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#2 [2024-12-02 06:39:32,372 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-12-02 06:39:32,372 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#signed_char_Array_0~0!base,GLOBAL]]] [2024-12-02 06:39:32,372 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#2 [2024-12-02 06:39:32,372 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-12-02 06:39:32,372 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#signed_char_Array_0~0!base,GLOBAL]]] [2024-12-02 06:39:32,372 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#2 [2024-12-02 06:39:32,373 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-12-02 06:39:32,373 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#signed_char_Array_0~0!base,GLOBAL]]] [2024-12-02 06:39:32,373 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#2 [2024-12-02 06:39:32,373 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-12-02 06:39:32,373 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#signed_char_Array_0~0!base,GLOBAL]]] [2024-12-02 06:39:32,373 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#2 [2024-12-02 06:39:32,373 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-12-02 06:39:32,373 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#signed_char_Array_0~0!base,GLOBAL]]] [2024-12-02 06:39:32,373 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#3 [2024-12-02 06:39:32,373 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#3,GLOBAL] [2024-12-02 06:39:32,373 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#3,GLOBAL],[IdentifierExpression[~#signed_long_int_Array_0~0!base,GLOBAL]]] [2024-12-02 06:39:32,373 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#2 [2024-12-02 06:39:32,374 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-12-02 06:39:32,374 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#signed_char_Array_0~0!base,GLOBAL]]] [2024-12-02 06:39:32,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:39:32 BoogieIcfgContainer [2024-12-02 06:39:32,374 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 06:39:32,375 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 06:39:32,375 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 06:39:32,375 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 06:39:32,376 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:38:03" (3/4) ... [2024-12-02 06:39:32,378 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 06:39:32,384 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 06:39:32,392 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-12-02 06:39:32,393 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 06:39:32,393 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 06:39:32,394 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 06:39:32,496 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 06:39:32,496 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 06:39:32,496 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 06:39:32,497 INFO L158 Benchmark]: Toolchain (without parser) took 90084.96ms. Allocated memory was 142.6MB in the beginning and 998.2MB in the end (delta: 855.6MB). Free memory was 116.6MB in the beginning and 543.3MB in the end (delta: -426.7MB). Peak memory consumption was 424.4MB. Max. memory is 16.1GB. [2024-12-02 06:39:32,497 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:39:32,498 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.71ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 102.2MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 06:39:32,498 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.43ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 98.4MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:39:32,498 INFO L158 Benchmark]: Boogie Preprocessor took 78.89ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 94.5MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:39:32,498 INFO L158 Benchmark]: RCFGBuilder took 743.41ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 62.4MB in the end (delta: 32.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 06:39:32,498 INFO L158 Benchmark]: TraceAbstraction took 88708.94ms. Allocated memory was 142.6MB in the beginning and 998.2MB in the end (delta: 855.6MB). Free memory was 61.8MB in the beginning and 551.7MB in the end (delta: -489.9MB). Peak memory consumption was 555.3MB. Max. memory is 16.1GB. [2024-12-02 06:39:32,498 INFO L158 Benchmark]: Witness Printer took 121.70ms. Allocated memory is still 998.2MB. Free memory was 551.7MB in the beginning and 543.3MB in the end (delta: 8.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:39:32,499 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.71ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 102.2MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.43ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 98.4MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 78.89ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 94.5MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 743.41ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 62.4MB in the end (delta: 32.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 88708.94ms. Allocated memory was 142.6MB in the beginning and 998.2MB in the end (delta: 855.6MB). Free memory was 61.8MB in the beginning and 551.7MB in the end (delta: -489.9MB). Peak memory consumption was 555.3MB. Max. memory is 16.1GB. * Witness Printer took 121.70ms. Allocated memory is still 998.2MB. Free memory was 551.7MB in the beginning and 543.3MB in the end (delta: 8.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#BOOL_unsigned_char_Array_0~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#BOOL_unsigned_char_Array_0~0!base,GLOBAL]]] - 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_short_int_Array_0~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#2 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#signed_char_Array_0~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#BOOL_unsigned_char_Array_0~0!base,GLOBAL]]] - 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_short_int_Array_0~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#2 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#signed_char_Array_0~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#2 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#signed_char_Array_0~0!base,GLOBAL]]] - 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: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#BOOL_unsigned_char_Array_0~0!base,GLOBAL]]] - 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_short_int_Array_0~0!base,GLOBAL]]] - 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: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~#BOOL_unsigned_char_Array_0~0!base,GLOBAL]]] - 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_short_int_Array_0~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#2 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#signed_char_Array_0~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#2 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#signed_char_Array_0~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#2 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#signed_char_Array_0~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#2 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#signed_char_Array_0~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#2 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#signed_char_Array_0~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#3,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#3,GLOBAL],[IdentifierExpression[~#signed_long_int_Array_0~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#2 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#signed_char_Array_0~0!base,GLOBAL]]] * 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, 102 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 49.2s, OverallIterations: 42, TraceHistogramMax: 26, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 12.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4868 SdHoareTripleChecker+Valid, 7.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4850 mSDsluCounter, 29002 SdHoareTripleChecker+Invalid, 6.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22690 mSDsCounter, 361 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6977 IncrementalHoareTripleChecker+Invalid, 7338 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 361 mSolverCounterUnsat, 6312 mSDtfsCounter, 6977 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1843 GetRequests, 1509 SyntacticMatches, 4 SemanticMatches, 330 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1409occurred in iteration=40, InterpolantAutomatonStates: 311, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 42 MinimizatonAttempts, 3066 StatesRemovedByMinimization, 36 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 28.3s InterpolantComputationTime, 7105 NumberOfCodeBlocks, 7105 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 7287 ConstructedInterpolants, 0 QuantifiedInterpolants, 22620 SizeOfPredicates, 18 NumberOfNonLiveVariables, 3472 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 50 InterpolantComputations, 41 PerfectInterpolantSequences, 29925/30200 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 06:39:32,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e026ff-5c37-4ca8-b2e4-7c1eb9d4d65c/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