./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-buckets-1.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_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/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_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-buckets-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/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_200f7d83-6006-40be-accf-5d73fa1e1341/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 c6b726a83620fff2a21a6dbfdec50e244c1786dd86dd76b1719515a59b3627ac --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 09:00:15,159 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 09:00:15,213 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 09:00:15,217 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 09:00:15,217 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 09:00:15,236 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 09:00:15,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 09:00:15,236 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 09:00:15,237 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 09:00:15,237 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 09:00:15,237 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 09:00:15,237 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 09:00:15,237 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 09:00:15,237 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 09:00:15,237 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 09:00:15,238 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 09:00:15,238 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 09:00:15,238 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 09:00:15,238 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 09:00:15,238 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 09:00:15,238 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 09:00:15,238 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 09:00:15,238 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 09:00:15,238 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 09:00:15,238 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 09:00:15,238 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 09:00:15,239 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 09:00:15,239 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 09:00:15,239 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 09:00:15,239 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 09:00:15,239 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 09:00:15,239 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 09:00:15,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:00:15,239 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 09:00:15,239 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 09:00:15,239 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 09:00:15,240 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 09:00:15,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:00:15,240 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 09:00:15,240 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 09:00:15,240 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 09:00:15,240 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 09:00:15,240 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 09:00:15,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 09:00:15,240 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 09:00:15,240 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 09:00:15,241 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 09:00:15,241 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 09:00:15,241 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_200f7d83-6006-40be-accf-5d73fa1e1341/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 -> c6b726a83620fff2a21a6dbfdec50e244c1786dd86dd76b1719515a59b3627ac [2024-12-02 09:00:15,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 09:00:15,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 09:00:15,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 09:00:15,452 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 09:00:15,453 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 09:00:15,454 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/forester-heap/sll-buckets-1.i [2024-12-02 09:00:18,065 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/data/84209f2f8/58c37c6e82584057b65d4469b89cd3d1/FLAG6051f0745 [2024-12-02 09:00:18,287 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 09:00:18,287 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i [2024-12-02 09:00:18,296 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/data/84209f2f8/58c37c6e82584057b65d4469b89cd3d1/FLAG6051f0745 [2024-12-02 09:00:18,628 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/data/84209f2f8/58c37c6e82584057b65d4469b89cd3d1 [2024-12-02 09:00:18,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 09:00:18,631 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 09:00:18,632 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 09:00:18,632 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 09:00:18,634 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 09:00:18,635 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:00:18" (1/1) ... [2024-12-02 09:00:18,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27da482b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:18, skipping insertion in model container [2024-12-02 09:00:18,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:00:18" (1/1) ... [2024-12-02 09:00:18,660 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 09:00:18,855 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_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i[22663,22676] [2024-12-02 09:00:18,858 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_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i[22734,22747] [2024-12-02 09:00:18,860 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_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i[22862,22875] [2024-12-02 09:00:18,864 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_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i[23275,23288] [2024-12-02 09:00:18,864 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_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i[23364,23377] [2024-12-02 09:00:18,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 09:00:18,874 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 09:00:18,908 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_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i[22663,22676] [2024-12-02 09:00:18,909 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_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i[22734,22747] [2024-12-02 09:00:18,910 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_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i[22862,22875] [2024-12-02 09:00:18,913 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_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i[23275,23288] [2024-12-02 09:00:18,914 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_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i[23364,23377] [2024-12-02 09:00:18,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 09:00:18,934 INFO L204 MainTranslator]: Completed translation [2024-12-02 09:00:18,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:18 WrapperNode [2024-12-02 09:00:18,935 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 09:00:18,935 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 09:00:18,935 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 09:00:18,936 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 09:00:18,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:18" (1/1) ... [2024-12-02 09:00:18,950 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:18" (1/1) ... [2024-12-02 09:00:18,967 INFO L138 Inliner]: procedures = 119, calls = 42, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 145 [2024-12-02 09:00:18,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 09:00:18,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 09:00:18,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 09:00:18,968 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 09:00:18,974 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:18" (1/1) ... [2024-12-02 09:00:18,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:18" (1/1) ... [2024-12-02 09:00:18,977 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:18" (1/1) ... [2024-12-02 09:00:18,991 INFO L175 MemorySlicer]: Split 32 memory accesses to 2 slices as follows [2, 30]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 16 writes are split as follows [0, 16]. [2024-12-02 09:00:18,991 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:18" (1/1) ... [2024-12-02 09:00:18,991 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:18" (1/1) ... [2024-12-02 09:00:18,999 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:18" (1/1) ... [2024-12-02 09:00:18,999 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:18" (1/1) ... [2024-12-02 09:00:19,003 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:18" (1/1) ... [2024-12-02 09:00:19,004 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:18" (1/1) ... [2024-12-02 09:00:19,005 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:18" (1/1) ... [2024-12-02 09:00:19,008 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 09:00:19,008 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 09:00:19,008 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 09:00:19,008 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 09:00:19,009 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:18" (1/1) ... [2024-12-02 09:00:19,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:00:19,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:00:19,030 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 09:00:19,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 09:00:19,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 09:00:19,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 09:00:19,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 09:00:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 09:00:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 09:00:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 09:00:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 09:00:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 09:00:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 09:00:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 09:00:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 09:00:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 09:00:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 09:00:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 09:00:19,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 09:00:19,132 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 09:00:19,133 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 09:00:19,344 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-12-02 09:00:19,344 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 09:00:19,353 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 09:00:19,354 INFO L312 CfgBuilder]: Removed 10 assume(true) statements. [2024-12-02 09:00:19,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:00:19 BoogieIcfgContainer [2024-12-02 09:00:19,354 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 09:00:19,356 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 09:00:19,356 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 09:00:19,360 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 09:00:19,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:00:18" (1/3) ... [2024-12-02 09:00:19,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df095ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:00:19, skipping insertion in model container [2024-12-02 09:00:19,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:00:18" (2/3) ... [2024-12-02 09:00:19,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df095ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:00:19, skipping insertion in model container [2024-12-02 09:00:19,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:00:19" (3/3) ... [2024-12-02 09:00:19,362 INFO L128 eAbstractionObserver]: Analyzing ICFG sll-buckets-1.i [2024-12-02 09:00:19,377 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 09:00:19,378 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sll-buckets-1.i that has 1 procedures, 49 locations, 1 initial locations, 10 loop locations, and 5 error locations. [2024-12-02 09:00:19,424 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 09:00:19,432 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;@6ccc04d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 09:00:19,433 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-12-02 09:00:19,436 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 43 states have (on average 1.7674418604651163) internal successors, (76), 48 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:19,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-02 09:00:19,439 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:19,439 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:00:19,440 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:00:19,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:19,444 INFO L85 PathProgramCache]: Analyzing trace with hash 294364465, now seen corresponding path program 1 times [2024-12-02 09:00:19,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:19,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565251943] [2024-12-02 09:00:19,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:19,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:19,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:19,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:19,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565251943] [2024-12-02 09:00:19,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565251943] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:19,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:19,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:00:19,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931952889] [2024-12-02 09:00:19,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:19,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:00:19,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:19,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:00:19,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:00:19,772 INFO L87 Difference]: Start difference. First operand has 49 states, 43 states have (on average 1.7674418604651163) internal successors, (76), 48 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:19,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:19,855 INFO L93 Difference]: Finished difference Result 116 states and 186 transitions. [2024-12-02 09:00:19,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:00:19,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-12-02 09:00:19,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:19,864 INFO L225 Difference]: With dead ends: 116 [2024-12-02 09:00:19,864 INFO L226 Difference]: Without dead ends: 65 [2024-12-02 09:00:19,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:00:19,868 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 63 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:19,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 90 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:00:19,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-12-02 09:00:19,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 46. [2024-12-02 09:00:19,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 45 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:19,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2024-12-02 09:00:19,897 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 9 [2024-12-02 09:00:19,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:19,897 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2024-12-02 09:00:19,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:19,898 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2024-12-02 09:00:19,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-02 09:00:19,898 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:19,898 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:00:19,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 09:00:19,899 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:00:19,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:19,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1242712599, now seen corresponding path program 1 times [2024-12-02 09:00:19,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:19,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696334003] [2024-12-02 09:00:19,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:19,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:20,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:20,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:20,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696334003] [2024-12-02 09:00:20,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696334003] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:20,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:20,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:00:20,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799899866] [2024-12-02 09:00:20,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:20,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:00:20,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:20,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:00:20,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:00:20,004 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:20,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:20,043 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2024-12-02 09:00:20,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:00:20,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-12-02 09:00:20,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:20,045 INFO L225 Difference]: With dead ends: 48 [2024-12-02 09:00:20,045 INFO L226 Difference]: Without dead ends: 46 [2024-12-02 09:00:20,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:00:20,046 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 5 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:20,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 80 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:00:20,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-12-02 09:00:20,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2024-12-02 09:00:20,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 43 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:20,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2024-12-02 09:00:20,052 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 10 [2024-12-02 09:00:20,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:20,052 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2024-12-02 09:00:20,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:20,053 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2024-12-02 09:00:20,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-02 09:00:20,053 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:20,053 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:00:20,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 09:00:20,054 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:00:20,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:20,054 INFO L85 PathProgramCache]: Analyzing trace with hash -583461257, now seen corresponding path program 1 times [2024-12-02 09:00:20,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:20,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278144999] [2024-12-02 09:00:20,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:20,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:20,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:20,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:20,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278144999] [2024-12-02 09:00:20,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278144999] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:20,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:20,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:00:20,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737606728] [2024-12-02 09:00:20,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:20,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:00:20,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:20,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:00:20,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:00:20,159 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:20,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:20,195 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2024-12-02 09:00:20,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:00:20,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-12-02 09:00:20,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:20,197 INFO L225 Difference]: With dead ends: 44 [2024-12-02 09:00:20,197 INFO L226 Difference]: Without dead ends: 42 [2024-12-02 09:00:20,197 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:00:20,198 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 19 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:20,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 54 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:00:20,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-12-02 09:00:20,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-12-02 09:00:20,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.25) internal successors, (50), 41 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:20,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2024-12-02 09:00:20,204 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 11 [2024-12-02 09:00:20,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:20,205 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2024-12-02 09:00:20,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:20,205 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2024-12-02 09:00:20,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-02 09:00:20,205 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:20,205 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:00:20,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 09:00:20,206 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:00:20,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:20,206 INFO L85 PathProgramCache]: Analyzing trace with hash 243137401, now seen corresponding path program 1 times [2024-12-02 09:00:20,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:20,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67389249] [2024-12-02 09:00:20,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:20,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:20,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:20,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:20,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67389249] [2024-12-02 09:00:20,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67389249] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:20,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:20,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 09:00:20,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263420672] [2024-12-02 09:00:20,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:20,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:00:20,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:20,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:00:20,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:00:20,611 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:20,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:20,775 INFO L93 Difference]: Finished difference Result 67 states and 80 transitions. [2024-12-02 09:00:20,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:00:20,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-12-02 09:00:20,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:20,776 INFO L225 Difference]: With dead ends: 67 [2024-12-02 09:00:20,777 INFO L226 Difference]: Without dead ends: 54 [2024-12-02 09:00:20,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:00:20,778 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 8 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:20,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 107 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:00:20,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-12-02 09:00:20,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 48. [2024-12-02 09:00:20,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 46 states have (on average 1.2391304347826086) internal successors, (57), 47 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:20,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2024-12-02 09:00:20,786 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 12 [2024-12-02 09:00:20,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:20,787 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2024-12-02 09:00:20,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:20,787 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2024-12-02 09:00:20,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-02 09:00:20,787 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:20,787 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:00:20,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 09:00:20,788 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:00:20,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:20,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1880189873, now seen corresponding path program 1 times [2024-12-02 09:00:20,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:20,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203436759] [2024-12-02 09:00:20,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:20,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:21,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:21,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:21,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203436759] [2024-12-02 09:00:21,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203436759] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:00:21,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993314610] [2024-12-02 09:00:21,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:21,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:00:21,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:00:21,076 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:00:21,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 09:00:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:21,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 09:00:21,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:00:21,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:21,319 INFO L349 Elim1Store]: treesize reduction 31, result has 13.9 percent of original size [2024-12-02 09:00:21,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2024-12-02 09:00:21,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2024-12-02 09:00:21,355 INFO L349 Elim1Store]: treesize reduction 44, result has 10.2 percent of original size [2024-12-02 09:00:21,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 41 [2024-12-02 09:00:21,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:21,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 36 [2024-12-02 09:00:21,592 INFO L349 Elim1Store]: treesize reduction 12, result has 58.6 percent of original size [2024-12-02 09:00:21,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 29 [2024-12-02 09:00:21,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 29 [2024-12-02 09:00:21,835 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:00:21,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 09:00:21,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:21,844 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:00:21,897 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_384 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_384) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|) 0))) is different from false [2024-12-02 09:00:21,913 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_384 (Array Int Int)) (|v_ULTIMATE.start_main_~item~0#1.base_27| Int)) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~item~0#1.base_27|) 0)) (not (= (select (select (store |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_main_~item~0#1.base_27| v_ArrVal_384) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|) 0)))) is different from false [2024-12-02 09:00:21,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:21,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993314610] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:00:21,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:00:21,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13 [2024-12-02 09:00:21,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261906857] [2024-12-02 09:00:21,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:00:21,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 09:00:21,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:21,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 09:00:21,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=83, Unknown=2, NotChecked=38, Total=156 [2024-12-02 09:00:21,966 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:22,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:22,841 INFO L93 Difference]: Finished difference Result 152 states and 183 transitions. [2024-12-02 09:00:22,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 09:00:22,841 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-12-02 09:00:22,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:22,843 INFO L225 Difference]: With dead ends: 152 [2024-12-02 09:00:22,843 INFO L226 Difference]: Without dead ends: 150 [2024-12-02 09:00:22,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=109, Invalid=239, Unknown=2, NotChecked=70, Total=420 [2024-12-02 09:00:22,844 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 247 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 297 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:22,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 307 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 237 Invalid, 0 Unknown, 297 Unchecked, 0.5s Time] [2024-12-02 09:00:22,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-12-02 09:00:22,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 75. [2024-12-02 09:00:22,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 74 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:22,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 92 transitions. [2024-12-02 09:00:22,863 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 92 transitions. Word has length 18 [2024-12-02 09:00:22,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:22,863 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 92 transitions. [2024-12-02 09:00:22,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:22,864 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 92 transitions. [2024-12-02 09:00:22,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-02 09:00:22,864 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:22,864 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:00:22,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 09:00:23,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:00:23,065 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:00:23,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:23,066 INFO L85 PathProgramCache]: Analyzing trace with hash 2005956332, now seen corresponding path program 1 times [2024-12-02 09:00:23,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:23,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479875763] [2024-12-02 09:00:23,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:23,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:23,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:23,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:23,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479875763] [2024-12-02 09:00:23,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479875763] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:00:23,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003048062] [2024-12-02 09:00:23,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:23,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:00:23,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:00:23,949 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:00:23,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 09:00:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:24,093 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-02 09:00:24,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:00:24,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2024-12-02 09:00:24,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2024-12-02 09:00:24,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:24,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:24,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2024-12-02 09:00:24,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2024-12-02 09:00:24,202 INFO L349 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2024-12-02 09:00:24,203 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 65 [2024-12-02 09:00:24,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 09:00:24,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:24,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:24,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-12-02 09:00:24,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 09:00:24,490 INFO L349 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2024-12-02 09:00:24,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 60 [2024-12-02 09:00:24,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:24,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 53 [2024-12-02 09:00:24,755 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:24,755 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:00:24,957 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:24,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003048062] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:00:24,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:00:24,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 14 [2024-12-02 09:00:24,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892014983] [2024-12-02 09:00:24,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:00:24,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 09:00:24,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:24,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 09:00:24,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-12-02 09:00:24,958 INFO L87 Difference]: Start difference. First operand 75 states and 92 transitions. Second operand has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:25,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:25,687 INFO L93 Difference]: Finished difference Result 99 states and 118 transitions. [2024-12-02 09:00:25,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 09:00:25,688 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-12-02 09:00:25,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:25,689 INFO L225 Difference]: With dead ends: 99 [2024-12-02 09:00:25,689 INFO L226 Difference]: Without dead ends: 86 [2024-12-02 09:00:25,689 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-12-02 09:00:25,690 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 29 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:25,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 209 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 09:00:25,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-12-02 09:00:25,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 81. [2024-12-02 09:00:25,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 79 states have (on average 1.240506329113924) internal successors, (98), 80 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:25,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 98 transitions. [2024-12-02 09:00:25,704 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 98 transitions. Word has length 18 [2024-12-02 09:00:25,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:25,704 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 98 transitions. [2024-12-02 09:00:25,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:25,705 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 98 transitions. [2024-12-02 09:00:25,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-02 09:00:25,705 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:25,705 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:00:25,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 09:00:25,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-12-02 09:00:25,906 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:00:25,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:25,906 INFO L85 PathProgramCache]: Analyzing trace with hash 2002948098, now seen corresponding path program 2 times [2024-12-02 09:00:25,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:25,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602246365] [2024-12-02 09:00:25,907 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 09:00:25,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:25,952 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 09:00:25,952 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:00:26,471 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:26,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:26,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602246365] [2024-12-02 09:00:26,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602246365] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:00:26,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012573277] [2024-12-02 09:00:26,472 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 09:00:26,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:00:26,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:00:26,474 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:00:26,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 09:00:27,030 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 09:00:27,030 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:00:27,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-12-02 09:00:27,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:00:27,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2024-12-02 09:00:27,092 INFO L349 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2024-12-02 09:00:27,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 112 treesize of output 98 [2024-12-02 09:00:27,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 52 [2024-12-02 09:00:27,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:27,125 INFO L349 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2024-12-02 09:00:27,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 28 [2024-12-02 09:00:27,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 09:00:27,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:27,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:27,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:27,165 INFO L349 Elim1Store]: treesize reduction 31, result has 13.9 percent of original size [2024-12-02 09:00:27,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 46 [2024-12-02 09:00:27,333 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-12-02 09:00:27,333 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 1 case distinctions, treesize of input 23 treesize of output 20 [2024-12-02 09:00:27,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:27,358 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-12-02 09:00:27,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 60 [2024-12-02 09:00:27,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:27,389 INFO L349 Elim1Store]: treesize reduction 12, result has 67.6 percent of original size [2024-12-02 09:00:27,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 37 [2024-12-02 09:00:27,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-12-02 09:00:27,486 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-12-02 09:00:27,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 58 [2024-12-02 09:00:27,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-12-02 09:00:27,790 INFO L349 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2024-12-02 09:00:27,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 29 [2024-12-02 09:00:27,798 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:27,798 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:00:27,887 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_678 (Array Int Int)) (v_ArrVal_677 (Array Int Int))) (not (= (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_678))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_677) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)) 0))) is different from false [2024-12-02 09:00:27,968 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:27,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012573277] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:00:27,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:00:27,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-12-02 09:00:27,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457946068] [2024-12-02 09:00:27,968 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:00:27,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 09:00:27,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:27,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 09:00:27,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=221, Unknown=2, NotChecked=30, Total=306 [2024-12-02 09:00:27,970 INFO L87 Difference]: Start difference. First operand 81 states and 98 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:28,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:28,956 INFO L93 Difference]: Finished difference Result 179 states and 218 transitions. [2024-12-02 09:00:28,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 09:00:28,957 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-12-02 09:00:28,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:28,958 INFO L225 Difference]: With dead ends: 179 [2024-12-02 09:00:28,958 INFO L226 Difference]: Without dead ends: 177 [2024-12-02 09:00:28,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=214, Invalid=658, Unknown=2, NotChecked=56, Total=930 [2024-12-02 09:00:28,960 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 633 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 164 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:28,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 241 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 239 Invalid, 0 Unknown, 164 Unchecked, 0.4s Time] [2024-12-02 09:00:28,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-12-02 09:00:28,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 106. [2024-12-02 09:00:28,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 104 states have (on average 1.2596153846153846) internal successors, (131), 105 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:28,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 131 transitions. [2024-12-02 09:00:28,982 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 131 transitions. Word has length 21 [2024-12-02 09:00:28,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:28,982 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 131 transitions. [2024-12-02 09:00:28,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:28,982 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 131 transitions. [2024-12-02 09:00:28,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-02 09:00:28,983 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:28,983 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:00:28,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 09:00:29,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-12-02 09:00:29,183 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:00:29,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:29,184 INFO L85 PathProgramCache]: Analyzing trace with hash -218907119, now seen corresponding path program 3 times [2024-12-02 09:00:29,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:29,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619016337] [2024-12-02 09:00:29,184 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 09:00:29,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:29,221 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-12-02 09:00:29,221 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:00:29,452 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 09:00:29,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:29,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619016337] [2024-12-02 09:00:29,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619016337] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:29,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:29,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 09:00:29,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133756483] [2024-12-02 09:00:29,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:29,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 09:00:29,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:29,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 09:00:29,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:00:29,454 INFO L87 Difference]: Start difference. First operand 106 states and 131 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:29,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:29,737 INFO L93 Difference]: Finished difference Result 201 states and 248 transitions. [2024-12-02 09:00:29,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 09:00:29,738 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-12-02 09:00:29,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:29,739 INFO L225 Difference]: With dead ends: 201 [2024-12-02 09:00:29,739 INFO L226 Difference]: Without dead ends: 138 [2024-12-02 09:00:29,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-12-02 09:00:29,740 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 91 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:29,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 170 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 09:00:29,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-12-02 09:00:29,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 113. [2024-12-02 09:00:29,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 111 states have (on average 1.2432432432432432) internal successors, (138), 112 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:29,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 138 transitions. [2024-12-02 09:00:29,760 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 138 transitions. Word has length 24 [2024-12-02 09:00:29,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:29,761 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 138 transitions. [2024-12-02 09:00:29,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:29,761 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 138 transitions. [2024-12-02 09:00:29,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-02 09:00:29,761 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:29,761 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:00:29,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 09:00:29,762 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:00:29,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:29,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1392029665, now seen corresponding path program 2 times [2024-12-02 09:00:29,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:29,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623361298] [2024-12-02 09:00:29,762 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 09:00:29,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:29,795 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 09:00:29,795 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:00:30,500 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:30,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:30,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623361298] [2024-12-02 09:00:30,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623361298] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:00:30,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970322673] [2024-12-02 09:00:30,500 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 09:00:30,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:00:30,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:00:30,502 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:00:30,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 09:00:30,828 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 09:00:30,828 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:00:30,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-12-02 09:00:30,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:00:30,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2024-12-02 09:00:30,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 40 [2024-12-02 09:00:30,893 INFO L349 Elim1Store]: treesize reduction 62, result has 21.5 percent of original size [2024-12-02 09:00:30,894 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 84 [2024-12-02 09:00:30,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 09:00:30,917 INFO L349 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2024-12-02 09:00:30,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 59 treesize of output 43 [2024-12-02 09:00:30,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 09:00:30,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:30,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 50 [2024-12-02 09:00:30,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 31 [2024-12-02 09:00:30,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 09:00:31,177 INFO L349 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2024-12-02 09:00:31,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 114 treesize of output 80 [2024-12-02 09:00:31,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:31,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 71 [2024-12-02 09:00:31,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:31,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 78 [2024-12-02 09:00:31,461 INFO L349 Elim1Store]: treesize reduction 87, result has 14.7 percent of original size [2024-12-02 09:00:31,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 121 treesize of output 83 [2024-12-02 09:00:31,867 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:31,867 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:00:32,219 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:32,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970322673] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:00:32,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:00:32,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 21 [2024-12-02 09:00:32,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307711401] [2024-12-02 09:00:32,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:00:32,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 09:00:32,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:32,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 09:00:32,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2024-12-02 09:00:32,221 INFO L87 Difference]: Start difference. First operand 113 states and 138 transitions. Second operand has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:33,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:33,351 INFO L93 Difference]: Finished difference Result 150 states and 178 transitions. [2024-12-02 09:00:33,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 09:00:33,352 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-12-02 09:00:33,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:33,352 INFO L225 Difference]: With dead ends: 150 [2024-12-02 09:00:33,352 INFO L226 Difference]: Without dead ends: 137 [2024-12-02 09:00:33,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=130, Invalid=572, Unknown=0, NotChecked=0, Total=702 [2024-12-02 09:00:33,353 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 58 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:33,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 341 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 09:00:33,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-12-02 09:00:33,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 119. [2024-12-02 09:00:33,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 117 states have (on average 1.2307692307692308) internal successors, (144), 118 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:33,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 144 transitions. [2024-12-02 09:00:33,374 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 144 transitions. Word has length 24 [2024-12-02 09:00:33,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:33,375 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 144 transitions. [2024-12-02 09:00:33,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:33,375 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 144 transitions. [2024-12-02 09:00:33,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 09:00:33,376 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:33,376 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:00:33,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 09:00:33,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:00:33,576 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:00:33,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:33,577 INFO L85 PathProgramCache]: Analyzing trace with hash -505911950, now seen corresponding path program 1 times [2024-12-02 09:00:33,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:33,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900562447] [2024-12-02 09:00:33,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:33,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:34,107 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 09:00:34,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:34,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900562447] [2024-12-02 09:00:34,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900562447] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:00:34,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353253304] [2024-12-02 09:00:34,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:34,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:00:34,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:00:34,110 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:00:34,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 09:00:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:34,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-12-02 09:00:34,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:00:34,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:34,346 INFO L349 Elim1Store]: treesize reduction 31, result has 13.9 percent of original size [2024-12-02 09:00:34,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2024-12-02 09:00:34,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2024-12-02 09:00:34,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2024-12-02 09:00:34,386 INFO L349 Elim1Store]: treesize reduction 44, result has 10.2 percent of original size [2024-12-02 09:00:34,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 133 treesize of output 100 [2024-12-02 09:00:34,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2024-12-02 09:00:34,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 11 [2024-12-02 09:00:34,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 11 [2024-12-02 09:00:34,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:34,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 39 [2024-12-02 09:00:34,610 INFO L349 Elim1Store]: treesize reduction 12, result has 58.6 percent of original size [2024-12-02 09:00:34,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 29 [2024-12-02 09:00:34,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-12-02 09:00:34,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-12-02 09:00:34,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-12-02 09:00:34,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 09:00:34,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 32 [2024-12-02 09:00:35,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2024-12-02 09:00:35,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-12-02 09:00:35,101 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 09:00:35,102 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:00:39,123 WARN L851 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~bcki~0#1.offset| Int) (|ULTIMATE.start_main_~bcki~0#1.base| Int)) (not (= (select (select |c_#memory_int#1| |c_ULTIMATE.start_main_~item~0#1.base|) (+ |c_ULTIMATE.start_main_~item~0#1.offset| 4)) (select (select |c_#memory_int#1| |ULTIMATE.start_main_~bcki~0#1.base|) (+ 8 |ULTIMATE.start_main_~bcki~0#1.offset|))))) is different from false [2024-12-02 09:00:39,408 WARN L851 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~item~0#1.offset| Int)) (let ((.cse0 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~item~0#1.base| (store (select |c_#memory_int#1| |c_ULTIMATE.start_main_~item~0#1.base|) (+ 4 |ULTIMATE.start_main_~item~0#1.offset|) 1)))) (or (forall ((v_ArrVal_1059 (Array Int Int)) (v_ArrVal_1058 (Array Int Int))) (= (select (select .cse0 (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_1058) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_1059) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|) 8)) 1)) (forall ((|v_ULTIMATE.start_main_~bcki~0#1.base_63| Int) (|v_ULTIMATE.start_main_~bcki~0#1.offset_58| Int)) (not (= (select (select .cse0 |v_ULTIMATE.start_main_~bcki~0#1.base_63|) (+ |v_ULTIMATE.start_main_~bcki~0#1.offset_58| 8)) 1)))))) is different from false [2024-12-02 09:00:39,432 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:00:39,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 48 [2024-12-02 09:00:39,565 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 9 not checked. [2024-12-02 09:00:39,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353253304] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:00:39,566 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:00:39,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 10] total 22 [2024-12-02 09:00:39,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6361838] [2024-12-02 09:00:39,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:00:39,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 09:00:39,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:39,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 09:00:39,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=328, Unknown=2, NotChecked=74, Total=462 [2024-12-02 09:00:39,567 INFO L87 Difference]: Start difference. First operand 119 states and 144 transitions. Second operand has 22 states, 22 states have (on average 2.727272727272727) internal successors, (60), 22 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:41,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:41,334 INFO L93 Difference]: Finished difference Result 302 states and 370 transitions. [2024-12-02 09:00:41,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 09:00:41,334 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.727272727272727) internal successors, (60), 22 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-12-02 09:00:41,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:41,336 INFO L225 Difference]: With dead ends: 302 [2024-12-02 09:00:41,336 INFO L226 Difference]: Without dead ends: 261 [2024-12-02 09:00:41,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=188, Invalid=688, Unknown=2, NotChecked=114, Total=992 [2024-12-02 09:00:41,337 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 171 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 262 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:41,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 518 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 566 Invalid, 0 Unknown, 262 Unchecked, 1.1s Time] [2024-12-02 09:00:41,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-12-02 09:00:41,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 177. [2024-12-02 09:00:41,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 175 states have (on average 1.2457142857142858) internal successors, (218), 176 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:41,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 218 transitions. [2024-12-02 09:00:41,367 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 218 transitions. Word has length 25 [2024-12-02 09:00:41,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:41,367 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 218 transitions. [2024-12-02 09:00:41,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.727272727272727) internal successors, (60), 22 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:41,367 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 218 transitions. [2024-12-02 09:00:41,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 09:00:41,368 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:41,368 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:00:41,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 09:00:41,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 09:00:41,569 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:00:41,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:41,569 INFO L85 PathProgramCache]: Analyzing trace with hash 2100111604, now seen corresponding path program 1 times [2024-12-02 09:00:41,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:41,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895259943] [2024-12-02 09:00:41,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:41,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:42,200 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:42,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:42,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895259943] [2024-12-02 09:00:42,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895259943] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:00:42,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468686247] [2024-12-02 09:00:42,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:42,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:00:42,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:00:42,202 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:00:42,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 09:00:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:42,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-12-02 09:00:42,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:00:42,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2024-12-02 09:00:42,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2024-12-02 09:00:42,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2024-12-02 09:00:42,495 INFO L349 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2024-12-02 09:00:42,495 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 180 treesize of output 156 [2024-12-02 09:00:42,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:42,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:42,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:42,522 INFO L349 Elim1Store]: treesize reduction 31, result has 13.9 percent of original size [2024-12-02 09:00:42,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 46 [2024-12-02 09:00:42,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 25 [2024-12-02 09:00:42,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 09:00:42,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:42,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 11 [2024-12-02 09:00:42,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:42,703 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-12-02 09:00:42,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 102 treesize of output 71 [2024-12-02 09:00:42,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:42,725 INFO L349 Elim1Store]: treesize reduction 12, result has 67.6 percent of original size [2024-12-02 09:00:42,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 37 [2024-12-02 09:00:42,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2024-12-02 09:00:42,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:42,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 39 [2024-12-02 09:00:42,849 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-12-02 09:00:42,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 69 [2024-12-02 09:00:42,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2024-12-02 09:00:42,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:00:42,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 39 [2024-12-02 09:00:43,436 INFO L349 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2024-12-02 09:00:43,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 114 treesize of output 53 [2024-12-02 09:00:43,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2024-12-02 09:00:43,531 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:43,531 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:00:43,694 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1216 (Array Int Int)) (v_ArrVal_1215 (Array Int Int)) (|ULTIMATE.start_main_~item~0#1.offset| Int)) (= (let ((.cse3 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_1216)) (.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_1215))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|))) (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_main_~item~0#1.base| (store (select |c_#memory_int#1| |c_ULTIMATE.start_main_~item~0#1.base|) (+ 4 |ULTIMATE.start_main_~item~0#1.offset|) 2)) (select (select .cse0 .cse1) .cse2)) (+ (select (select .cse3 .cse1) .cse2) 8)))) 2)) is different from false [2024-12-02 09:00:43,709 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:00:43,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 63 [2024-12-02 09:00:43,830 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:43,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468686247] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:00:43,830 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:00:43,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2024-12-02 09:00:43,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6388999] [2024-12-02 09:00:43,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:00:43,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 09:00:43,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:43,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 09:00:43,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=409, Unknown=1, NotChecked=40, Total=506 [2024-12-02 09:00:43,831 INFO L87 Difference]: Start difference. First operand 177 states and 218 transitions. Second operand has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:46,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:46,172 INFO L93 Difference]: Finished difference Result 347 states and 427 transitions. [2024-12-02 09:00:46,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 09:00:46,172 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-12-02 09:00:46,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:46,174 INFO L225 Difference]: With dead ends: 347 [2024-12-02 09:00:46,174 INFO L226 Difference]: Without dead ends: 307 [2024-12-02 09:00:46,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=226, Invalid=967, Unknown=1, NotChecked=66, Total=1260 [2024-12-02 09:00:46,175 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 262 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 151 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:46,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 629 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 794 Invalid, 0 Unknown, 151 Unchecked, 1.3s Time] [2024-12-02 09:00:46,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-12-02 09:00:46,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 234. [2024-12-02 09:00:46,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 232 states have (on average 1.2456896551724137) internal successors, (289), 233 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:46,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 289 transitions. [2024-12-02 09:00:46,209 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 289 transitions. Word has length 25 [2024-12-02 09:00:46,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:46,209 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 289 transitions. [2024-12-02 09:00:46,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:00:46,209 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 289 transitions. [2024-12-02 09:00:46,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-02 09:00:46,210 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:46,210 INFO L218 NwaCegarLoop]: trace histogram [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 09:00:46,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 09:00:46,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 09:00:46,411 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:00:46,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:46,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1003860032, now seen corresponding path program 1 times [2024-12-02 09:00:46,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:46,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145498657] [2024-12-02 09:00:46,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:46,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:46,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:46,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:46,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145498657] [2024-12-02 09:00:46,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145498657] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:00:46,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593776626] [2024-12-02 09:00:46,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:46,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:00:46,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:00:46,988 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:00:46,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 09:00:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:47,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-12-02 09:00:47,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:00:47,176 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2024-12-02 09:00:47,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 12 treesize of output 16 [2024-12-02 09:00:47,198 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-02 09:00:47,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2024-12-02 09:00:47,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 09:00:47,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 09:00:47,449 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 11 treesize of output 7 [2024-12-02 09:00:47,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 09:00:47,552 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 7 treesize of output 3 [2024-12-02 09:00:47,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-12-02 09:00:47,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2024-12-02 09:00:47,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:00:47,648 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:00:47,709 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1380 (Array Int Int))) (let ((.cse0 (+ |c_ULTIMATE.start_main_~bcki~0#1.offset| 4))) (or (not (= v_ArrVal_1380 (store (select |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base|) .cse0 (select v_ArrVal_1380 .cse0)))) (= (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base| v_ArrVal_1380) (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bcki~0#1.base|) .cse0)) (+ (select (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~bcki~0#1.base|) .cse0) 4)) (select v_ArrVal_1380 (+ |c_ULTIMATE.start_main_~bcki~0#1.offset| 8)))))) is different from false [2024-12-02 09:00:47,728 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1380 (Array Int Int))) (let ((.cse0 (+ |c_ULTIMATE.start_main_~bucket~0#1.offset| 4))) (or (= (select v_ArrVal_1380 (+ |c_ULTIMATE.start_main_~bucket~0#1.offset| 8)) (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_1380) (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse0)) (+ (select (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse0) 4))) (not (= (store (select |c_#memory_int#1| |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse0 (select v_ArrVal_1380 .cse0)) v_ArrVal_1380))))) is different from false [2024-12-02 09:00:47,751 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 108 treesize of output 102 [2024-12-02 09:00:47,759 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 170 treesize of output 158 [2024-12-02 09:00:47,904 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~bucket~0#1.offset| 4)) (.cse3 (+ |c_ULTIMATE.start_main_~item~0#1.offset| 4)) (.cse2 (+ |c_ULTIMATE.start_main_~bucket~0#1.offset| 8)) (.cse4 (select |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base|)) (.cse5 (+ |c_ULTIMATE.start_main_~bcki~0#1.offset| 4))) (let ((.cse12 (forall ((v_arrayElimCell_120 Int) (v_ArrVal_1378 Int) (v_arrayElimCell_119 Int) (v_ArrVal_1380 (Array Int Int))) (let ((.cse18 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base| (store .cse4 .cse5 v_ArrVal_1378)))) (let ((.cse19 (select v_ArrVal_1380 .cse2)) (.cse20 (store .cse18 |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_1380))) (or (not (= v_ArrVal_1380 (store (select .cse18 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse1 (select v_ArrVal_1380 .cse1)))) (= .cse19 (select (select .cse20 v_arrayElimCell_119) (+ v_arrayElimCell_120 4))) (= .cse19 (select (select .cse20 |c_ULTIMATE.start_main_~item~0#1.base|) .cse3))))))) (.cse6 (= |c_ULTIMATE.start_main_~bcki~0#1.offset| |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (.cse13 (and (forall ((v_ArrVal_1378 Int) (v_ArrVal_1380 (Array Int Int))) (let ((.cse14 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base| (store .cse4 .cse5 v_ArrVal_1378)))) (or (not (= v_ArrVal_1380 (store (select .cse14 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse1 (select v_ArrVal_1380 .cse1)))) (forall ((v_arrayElimCell_120 Int) (v_arrayElimCell_119 Int)) (let ((.cse15 (select v_ArrVal_1380 .cse2)) (.cse16 (select (store .cse14 |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_1380) v_arrayElimCell_119))) (or (= .cse15 (select .cse16 .cse3)) (= .cse15 (select .cse16 (+ v_arrayElimCell_120 4))))))))) (forall ((v_ArrVal_1378 Int) (v_ArrVal_1380 (Array Int Int))) (let ((.cse17 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base| (store .cse4 .cse5 v_ArrVal_1378)))) (or (not (= v_ArrVal_1380 (store (select .cse17 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse1 (select v_ArrVal_1380 .cse1)))) (forall ((v_arrayElimCell_120 Int) (v_arrayElimCell_119 Int)) (= (select v_ArrVal_1380 .cse2) (select (select (store .cse17 |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_1380) v_arrayElimCell_119) (+ v_arrayElimCell_120 4))))))))) (.cse7 (= |c_ULTIMATE.start_main_~bcki~0#1.base| |c_ULTIMATE.start_main_~bucket~0#1.base|))) (and (or (forall ((v_ArrVal_1378 Int) (v_ArrVal_1380 (Array Int Int))) (let ((.cse0 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base| (store .cse4 .cse5 v_ArrVal_1378)))) (or (not (= v_ArrVal_1380 (store (select .cse0 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse1 (select v_ArrVal_1380 .cse1)))) (= (select v_ArrVal_1380 .cse2) (select (select (store .cse0 |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_1380) |c_ULTIMATE.start_main_~item~0#1.base|) .cse3))))) (not .cse6) (not .cse7)) (forall ((v_ArrVal_1378 Int) (v_ArrVal_1380 (Array Int Int))) (let ((.cse8 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base| (store .cse4 .cse5 v_ArrVal_1378)))) (let ((.cse9 (select v_ArrVal_1380 .cse2)) (.cse11 (store .cse8 |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_1380))) (or (not (= v_ArrVal_1380 (store (select .cse8 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse1 (select v_ArrVal_1380 .cse1)))) (forall ((v_arrayElimCell_120 Int) (v_arrayElimCell_119 Int)) (let ((.cse10 (select .cse11 v_arrayElimCell_119))) (or (= .cse9 (select .cse10 .cse3)) (= .cse9 (select .cse10 (+ v_arrayElimCell_120 4)))))) (= .cse9 (select (select .cse11 |c_ULTIMATE.start_main_~item~0#1.base|) .cse3)))))) (or .cse7 .cse12) (or .cse13 .cse6) (or .cse12 .cse6) (or .cse13 .cse7)))) is different from false [2024-12-02 09:00:49,640 INFO L349 Elim1Store]: treesize reduction 31, result has 40.4 percent of original size [2024-12-02 09:00:49,640 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 190 treesize of output 144 [2024-12-02 09:00:49,663 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2024-12-02 09:00:49,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 208 treesize of output 204 [2024-12-02 09:00:49,903 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:00:49,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 233 treesize of output 294 [2024-12-02 09:01:23,540 WARN L286 SmtUtils]: Spent 13.49s on a formula simplification. DAG size of input: 651 DAG size of output: 649 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-12-02 09:01:23,540 INFO L349 Elim1Store]: treesize reduction 6, result has 99.5 percent of original size [2024-12-02 09:01:23,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 1202 treesize of output 1938 [2024-12-02 09:02:05,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2024-12-02 09:02:05,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593776626] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:02:05,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:02:05,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 31 [2024-12-02 09:02:05,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785759151] [2024-12-02 09:02:05,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:02:05,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-02 09:02:05,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:05,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-02 09:02:05,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=645, Unknown=3, NotChecked=162, Total=930 [2024-12-02 09:02:05,818 INFO L87 Difference]: Start difference. First operand 234 states and 289 transitions. Second operand has 31 states, 31 states have (on average 2.3225806451612905) internal successors, (72), 31 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:09,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:09,093 INFO L93 Difference]: Finished difference Result 390 states and 480 transitions. [2024-12-02 09:02:09,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 09:02:09,093 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.3225806451612905) internal successors, (72), 31 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-12-02 09:02:09,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:09,094 INFO L225 Difference]: With dead ends: 390 [2024-12-02 09:02:09,094 INFO L226 Difference]: Without dead ends: 346 [2024-12-02 09:02:09,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 46 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=362, Invalid=1627, Unknown=3, NotChecked=264, Total=2256 [2024-12-02 09:02:09,095 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 223 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 381 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:09,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 485 Invalid, 1156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 767 Invalid, 0 Unknown, 381 Unchecked, 2.0s Time] [2024-12-02 09:02:09,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-12-02 09:02:09,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 285. [2024-12-02 09:02:09,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 283 states have (on average 1.2367491166077738) internal successors, (350), 284 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:09,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 350 transitions. [2024-12-02 09:02:09,149 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 350 transitions. Word has length 27 [2024-12-02 09:02:09,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:09,149 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 350 transitions. [2024-12-02 09:02:09,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.3225806451612905) internal successors, (72), 31 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:09,149 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 350 transitions. [2024-12-02 09:02:09,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 09:02:09,149 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:09,149 INFO L218 NwaCegarLoop]: trace histogram [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 09:02:09,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-02 09:02:09,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 09:02:09,350 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:02:09,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:09,350 INFO L85 PathProgramCache]: Analyzing trace with hash 360574330, now seen corresponding path program 1 times [2024-12-02 09:02:09,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:09,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238479137] [2024-12-02 09:02:09,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:09,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:09,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:09,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:09,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238479137] [2024-12-02 09:02:09,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238479137] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:02:09,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:02:09,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 09:02:09,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621727586] [2024-12-02 09:02:09,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:02:09,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:02:09,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:09,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:02:09,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:02:09,837 INFO L87 Difference]: Start difference. First operand 285 states and 350 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:10,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:10,226 INFO L93 Difference]: Finished difference Result 363 states and 444 transitions. [2024-12-02 09:02:10,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 09:02:10,227 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-12-02 09:02:10,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:10,229 INFO L225 Difference]: With dead ends: 363 [2024-12-02 09:02:10,229 INFO L226 Difference]: Without dead ends: 289 [2024-12-02 09:02:10,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:02:10,230 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 42 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:10,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 118 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 09:02:10,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-12-02 09:02:10,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 285. [2024-12-02 09:02:10,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 283 states have (on average 1.226148409893993) internal successors, (347), 284 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:10,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 347 transitions. [2024-12-02 09:02:10,278 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 347 transitions. Word has length 30 [2024-12-02 09:02:10,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:10,278 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 347 transitions. [2024-12-02 09:02:10,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:10,278 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 347 transitions. [2024-12-02 09:02:10,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 09:02:10,279 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:10,279 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:02:10,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 09:02:10,279 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:02:10,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:10,280 INFO L85 PathProgramCache]: Analyzing trace with hash 605370130, now seen corresponding path program 3 times [2024-12-02 09:02:10,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:10,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486242744] [2024-12-02 09:02:10,280 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 09:02:10,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:10,308 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-12-02 09:02:10,308 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:02:10,914 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:10,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:10,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486242744] [2024-12-02 09:02:10,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486242744] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:02:10,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555428234] [2024-12-02 09:02:10,915 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 09:02:10,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:10,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:10,917 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:02:10,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 09:02:13,026 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-12-02 09:02:13,027 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:02:13,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-12-02 09:02:13,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:13,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2024-12-02 09:02:13,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2024-12-02 09:02:13,079 INFO L349 Elim1Store]: treesize reduction 62, result has 21.5 percent of original size [2024-12-02 09:02:13,079 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 84 [2024-12-02 09:02:13,090 INFO L349 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2024-12-02 09:02:13,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 59 treesize of output 43 [2024-12-02 09:02:13,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:13,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 45 [2024-12-02 09:02:13,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 09:02:13,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 09:02:13,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 09:02:13,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 1 [2024-12-02 09:02:13,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:13,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2024-12-02 09:02:13,313 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-12-02 09:02:13,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 88 treesize of output 63 [2024-12-02 09:02:13,590 INFO L349 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size [2024-12-02 09:02:13,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 95 treesize of output 73 [2024-12-02 09:02:13,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:13,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2024-12-02 09:02:13,948 INFO L349 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2024-12-02 09:02:13,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 121 treesize of output 90 [2024-12-02 09:02:13,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:13,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2024-12-02 09:02:14,208 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:14,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:02:14,613 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:14,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555428234] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:02:14,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:02:14,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 9] total 24 [2024-12-02 09:02:14,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590943319] [2024-12-02 09:02:14,614 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:02:14,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 09:02:14,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:14,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 09:02:14,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=467, Unknown=0, NotChecked=0, Total=552 [2024-12-02 09:02:14,615 INFO L87 Difference]: Start difference. First operand 285 states and 347 transitions. Second operand has 24 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 24 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:15,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:15,884 INFO L93 Difference]: Finished difference Result 302 states and 365 transitions. [2024-12-02 09:02:15,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 09:02:15,885 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 24 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-12-02 09:02:15,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:15,886 INFO L225 Difference]: With dead ends: 302 [2024-12-02 09:02:15,886 INFO L226 Difference]: Without dead ends: 269 [2024-12-02 09:02:15,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=85, Invalid=467, Unknown=0, NotChecked=0, Total=552 [2024-12-02 09:02:15,887 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 3 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:15,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 373 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 09:02:15,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-12-02 09:02:15,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2024-12-02 09:02:15,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 267 states have (on average 1.2359550561797752) internal successors, (330), 268 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:15,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 330 transitions. [2024-12-02 09:02:15,930 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 330 transitions. Word has length 30 [2024-12-02 09:02:15,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:15,930 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 330 transitions. [2024-12-02 09:02:15,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 24 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:15,931 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 330 transitions. [2024-12-02 09:02:15,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-02 09:02:15,931 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:15,931 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 09:02:15,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 09:02:16,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 09:02:16,132 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:02:16,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:16,132 INFO L85 PathProgramCache]: Analyzing trace with hash -292441680, now seen corresponding path program 1 times [2024-12-02 09:02:16,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:16,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690308402] [2024-12-02 09:02:16,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:16,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:16,592 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:16,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:16,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690308402] [2024-12-02 09:02:16,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690308402] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:02:16,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720759037] [2024-12-02 09:02:16,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:16,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:16,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:16,595 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:02:16,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 09:02:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:16,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-12-02 09:02:16,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:16,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:16,868 INFO L349 Elim1Store]: treesize reduction 31, result has 13.9 percent of original size [2024-12-02 09:02:16,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2024-12-02 09:02:16,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2024-12-02 09:02:16,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2024-12-02 09:02:16,891 INFO L349 Elim1Store]: treesize reduction 44, result has 10.2 percent of original size [2024-12-02 09:02:16,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 52 [2024-12-02 09:02:16,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2024-12-02 09:02:17,021 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-12-02 09:02:17,021 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 1 case distinctions, treesize of input 23 treesize of output 20 [2024-12-02 09:02:17,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:17,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 30 [2024-12-02 09:02:17,054 INFO L349 Elim1Store]: treesize reduction 12, result has 58.6 percent of original size [2024-12-02 09:02:17,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 29 [2024-12-02 09:02:17,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2024-12-02 09:02:17,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-12-02 09:02:17,362 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-12-02 09:02:17,362 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 43 [2024-12-02 09:02:17,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 16 [2024-12-02 09:02:17,433 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:17,434 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:02:17,671 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~bucket~0#1.offset| 4))) (and (forall ((v_ArrVal_1812 (Array Int Int)) (v_ArrVal_1811 (Array Int Int))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_1811))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|) v_ArrVal_1812)) |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_1813 (Array Int Int)) (v_ArrVal_1811 (Array Int Int)) (v_ArrVal_1810 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_1810) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_1811) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|) v_ArrVal_1813) |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse1) 0)))) is different from false [2024-12-02 09:02:17,777 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:17,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720759037] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:02:17,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:02:17,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 21 [2024-12-02 09:02:17,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490520912] [2024-12-02 09:02:17,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:02:17,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 09:02:17,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:17,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 09:02:17,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=285, Unknown=19, NotChecked=36, Total=420 [2024-12-02 09:02:17,779 INFO L87 Difference]: Start difference. First operand 269 states and 330 transitions. Second operand has 21 states, 21 states have (on average 3.761904761904762) internal successors, (79), 21 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:18,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:18,600 INFO L93 Difference]: Finished difference Result 367 states and 449 transitions. [2024-12-02 09:02:18,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 09:02:18,601 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.761904761904762) internal successors, (79), 21 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-12-02 09:02:18,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:18,602 INFO L225 Difference]: With dead ends: 367 [2024-12-02 09:02:18,602 INFO L226 Difference]: Without dead ends: 354 [2024-12-02 09:02:18,602 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=133, Invalid=452, Unknown=19, NotChecked=46, Total=650 [2024-12-02 09:02:18,603 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 182 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 85 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:18,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 236 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 245 Invalid, 0 Unknown, 85 Unchecked, 0.6s Time] [2024-12-02 09:02:18,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-12-02 09:02:18,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 318. [2024-12-02 09:02:18,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 316 states have (on average 1.2436708860759493) internal successors, (393), 317 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:18,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 393 transitions. [2024-12-02 09:02:18,658 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 393 transitions. Word has length 31 [2024-12-02 09:02:18,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:18,658 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 393 transitions. [2024-12-02 09:02:18,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.761904761904762) internal successors, (79), 21 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:18,658 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 393 transitions. [2024-12-02 09:02:18,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-02 09:02:18,659 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:18,659 INFO L218 NwaCegarLoop]: trace histogram [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 09:02:18,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 09:02:18,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 09:02:18,859 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:02:18,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:18,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1706261968, now seen corresponding path program 1 times [2024-12-02 09:02:18,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:18,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736339614] [2024-12-02 09:02:18,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:18,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:18,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:19,423 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:19,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:19,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736339614] [2024-12-02 09:02:19,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736339614] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:02:19,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747182271] [2024-12-02 09:02:19,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:19,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:19,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:19,426 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:02:19,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 09:02:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:19,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 09:02:19,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:19,662 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 11 treesize of output 7 [2024-12-02 09:02:19,666 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 11 treesize of output 7 [2024-12-02 09:02:19,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 09:02:19,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 09:02:19,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-12-02 09:02:19,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-12-02 09:02:19,951 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:19,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 25 [2024-12-02 09:02:19,957 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:19,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 31 [2024-12-02 09:02:20,028 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:20,028 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:02:20,400 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:20,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747182271] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:02:20,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:02:20,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 7] total 21 [2024-12-02 09:02:20,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289088176] [2024-12-02 09:02:20,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:02:20,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 09:02:20,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:20,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 09:02:20,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-12-02 09:02:20,402 INFO L87 Difference]: Start difference. First operand 318 states and 393 transitions. Second operand has 21 states, 21 states have (on average 4.0) internal successors, (84), 21 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:21,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:21,917 INFO L93 Difference]: Finished difference Result 405 states and 494 transitions. [2024-12-02 09:02:21,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 09:02:21,917 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.0) internal successors, (84), 21 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2024-12-02 09:02:21,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:21,919 INFO L225 Difference]: With dead ends: 405 [2024-12-02 09:02:21,919 INFO L226 Difference]: Without dead ends: 392 [2024-12-02 09:02:21,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=195, Invalid=927, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 09:02:21,920 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 236 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:21,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 398 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 09:02:21,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-12-02 09:02:22,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 320. [2024-12-02 09:02:22,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 318 states have (on average 1.2421383647798743) internal successors, (395), 319 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:22,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 395 transitions. [2024-12-02 09:02:22,018 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 395 transitions. Word has length 33 [2024-12-02 09:02:22,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:22,018 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 395 transitions. [2024-12-02 09:02:22,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.0) internal successors, (84), 21 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:22,018 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 395 transitions. [2024-12-02 09:02:22,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-02 09:02:22,019 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:22,019 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 09:02:22,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 09:02:22,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:22,219 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:02:22,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:22,220 INFO L85 PathProgramCache]: Analyzing trace with hash 139016819, now seen corresponding path program 1 times [2024-12-02 09:02:22,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:22,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676299257] [2024-12-02 09:02:22,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:22,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:23,181 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:23,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:23,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676299257] [2024-12-02 09:02:23,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676299257] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:02:23,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380477240] [2024-12-02 09:02:23,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:23,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:23,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:23,183 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:02:23,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 09:02:23,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:23,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 09:02:23,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:23,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 09:02:23,509 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 16 treesize of output 8 [2024-12-02 09:02:23,520 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:23,520 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:02:23,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380477240] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:02:23,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:02:23,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19 [2024-12-02 09:02:23,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520329203] [2024-12-02 09:02:23,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:02:23,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 09:02:23,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:23,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 09:02:23,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2024-12-02 09:02:23,521 INFO L87 Difference]: Start difference. First operand 320 states and 395 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:23,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:23,762 INFO L93 Difference]: Finished difference Result 337 states and 415 transitions. [2024-12-02 09:02:23,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 09:02:23,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2024-12-02 09:02:23,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:23,764 INFO L225 Difference]: With dead ends: 337 [2024-12-02 09:02:23,764 INFO L226 Difference]: Without dead ends: 324 [2024-12-02 09:02:23,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2024-12-02 09:02:23,764 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 26 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:23,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 129 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 09:02:23,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-12-02 09:02:23,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 320. [2024-12-02 09:02:23,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 318 states have (on average 1.2389937106918238) internal successors, (394), 319 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:23,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 394 transitions. [2024-12-02 09:02:23,816 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 394 transitions. Word has length 33 [2024-12-02 09:02:23,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:23,817 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 394 transitions. [2024-12-02 09:02:23,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:23,817 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 394 transitions. [2024-12-02 09:02:23,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-12-02 09:02:23,817 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:23,817 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 09:02:23,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 09:02:24,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:24,018 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:02:24,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:24,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1712769526, now seen corresponding path program 1 times [2024-12-02 09:02:24,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:24,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672290359] [2024-12-02 09:02:24,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:24,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:24,454 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:24,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:24,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672290359] [2024-12-02 09:02:24,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672290359] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:02:24,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26431389] [2024-12-02 09:02:24,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:24,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:24,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:24,456 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:02:24,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 09:02:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:24,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-12-02 09:02:24,648 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:24,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2024-12-02 09:02:24,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2024-12-02 09:02:24,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2024-12-02 09:02:24,688 INFO L349 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2024-12-02 09:02:24,688 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 112 treesize of output 96 [2024-12-02 09:02:24,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:24,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:24,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:24,706 INFO L349 Elim1Store]: treesize reduction 31, result has 13.9 percent of original size [2024-12-02 09:02:24,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 46 [2024-12-02 09:02:24,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:24,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 11 [2024-12-02 09:02:24,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 09:02:24,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:24,838 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-12-02 09:02:24,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 88 treesize of output 63 [2024-12-02 09:02:24,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:24,868 INFO L349 Elim1Store]: treesize reduction 32, result has 45.8 percent of original size [2024-12-02 09:02:24,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2024-12-02 09:02:24,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:24,901 INFO L349 Elim1Store]: treesize reduction 12, result has 67.6 percent of original size [2024-12-02 09:02:24,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 37 [2024-12-02 09:02:24,988 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-12-02 09:02:24,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 61 [2024-12-02 09:02:24,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:25,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2024-12-02 09:02:25,345 INFO L349 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2024-12-02 09:02:25,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 29 [2024-12-02 09:02:25,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-12-02 09:02:25,371 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:25,371 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:02:25,510 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2322 (Array Int Int)) (v_ArrVal_2321 (Array Int Int))) (= (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_2321))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|))) (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_2322) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|) 4)) 0)) (forall ((v_ArrVal_2322 (Array Int Int)) (v_ArrVal_2321 (Array Int Int))) (= (let ((.cse1 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_2322))) (select (select .cse1 (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_2321) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (+ (select (select .cse1 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|) 4))) 0))) is different from false [2024-12-02 09:02:25,625 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:25,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26431389] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:02:25,625 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:02:25,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 19 [2024-12-02 09:02:25,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021747417] [2024-12-02 09:02:25,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:02:25,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 09:02:25,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:25,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 09:02:25,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=255, Unknown=1, NotChecked=32, Total=342 [2024-12-02 09:02:25,626 INFO L87 Difference]: Start difference. First operand 320 states and 394 transitions. Second operand has 19 states, 19 states have (on average 3.8421052631578947) internal successors, (73), 19 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:26,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:26,968 INFO L93 Difference]: Finished difference Result 458 states and 555 transitions. [2024-12-02 09:02:26,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 09:02:26,969 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.8421052631578947) internal successors, (73), 19 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-12-02 09:02:26,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:26,970 INFO L225 Difference]: With dead ends: 458 [2024-12-02 09:02:26,970 INFO L226 Difference]: Without dead ends: 381 [2024-12-02 09:02:26,970 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=161, Invalid=544, Unknown=1, NotChecked=50, Total=756 [2024-12-02 09:02:26,971 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 205 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 126 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:26,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 378 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 417 Invalid, 0 Unknown, 126 Unchecked, 0.8s Time] [2024-12-02 09:02:26,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-12-02 09:02:27,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 327. [2024-12-02 09:02:27,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 325 states have (on average 1.2276923076923076) internal successors, (399), 326 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:27,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 399 transitions. [2024-12-02 09:02:27,030 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 399 transitions. Word has length 34 [2024-12-02 09:02:27,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:27,030 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 399 transitions. [2024-12-02 09:02:27,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.8421052631578947) internal successors, (73), 19 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:27,030 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 399 transitions. [2024-12-02 09:02:27,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-12-02 09:02:27,030 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:27,030 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:02:27,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 09:02:27,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:27,231 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:02:27,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:27,231 INFO L85 PathProgramCache]: Analyzing trace with hash -455659939, now seen corresponding path program 1 times [2024-12-02 09:02:27,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:27,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927071085] [2024-12-02 09:02:27,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:27,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:27,856 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:27,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:27,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927071085] [2024-12-02 09:02:27,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927071085] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:02:27,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22256826] [2024-12-02 09:02:27,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:27,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:27,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:27,858 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:02:27,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 09:02:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:28,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 86 conjuncts are in the unsatisfiable core [2024-12-02 09:02:28,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:28,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2024-12-02 09:02:28,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-12-02 09:02:28,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2024-12-02 09:02:28,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:28,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:28,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:28,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2024-12-02 09:02:28,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 11 [2024-12-02 09:02:28,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2024-12-02 09:02:28,205 INFO L349 Elim1Store]: treesize reduction 44, result has 10.2 percent of original size [2024-12-02 09:02:28,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 48 [2024-12-02 09:02:28,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-12-02 09:02:28,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 23 [2024-12-02 09:02:28,248 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-12-02 09:02:28,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:28,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 48 [2024-12-02 09:02:28,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:28,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:28,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:28,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2024-12-02 09:02:28,459 INFO L349 Elim1Store]: treesize reduction 12, result has 58.6 percent of original size [2024-12-02 09:02:28,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 29 [2024-12-02 09:02:28,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-12-02 09:02:28,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-12-02 09:02:28,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 47 [2024-12-02 09:02:28,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 69 [2024-12-02 09:02:29,716 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:29,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 18 [2024-12-02 09:02:30,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 47 [2024-12-02 09:02:30,100 INFO L349 Elim1Store]: treesize reduction 44, result has 45.0 percent of original size [2024-12-02 09:02:30,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 71 [2024-12-02 09:02:30,819 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:30,819 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:02:30,867 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~bucket~0#1.offset| 4))) (and (forall ((v_ArrVal_2507 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bcki~0#1.base| v_ArrVal_2507) |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse0) 0)) (forall ((v_ArrVal_2508 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~bcki~0#1.base| v_ArrVal_2508) |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse0) 0)))) is different from false [2024-12-02 09:02:31,392 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~item~0#1.offset| 4))) (let ((.cse0 (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base|)) (.cse2 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~item~0#1.base| (store (select |c_#memory_int#1| |c_ULTIMATE.start_main_~item~0#1.base|) .cse1 2))) (.cse4 (+ |c_ULTIMATE.start_main_~bucket~0#1.offset| 4))) (and (forall ((v_ArrVal_2503 (Array Int Int))) (or (not (= (store .cse0 .cse1 (select v_ArrVal_2503 .cse1)) v_ArrVal_2503)) (forall ((v_ArrVal_2506 (Array Int Int)) (v_subst_4 Int)) (let ((.cse3 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_2503))) (or (not (= (select (select .cse2 v_subst_4) (+ 8 (select (select .cse3 (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_2506) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (select (select .cse3 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)))) 2)) (forall ((v_ArrVal_2508 (Array Int Int))) (= (select (select (store .cse3 v_subst_4 v_ArrVal_2508) |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse4) 0))))))) (forall ((v_ArrVal_2503 (Array Int Int))) (or (not (= (store .cse0 .cse1 (select v_ArrVal_2503 .cse1)) v_ArrVal_2503)) (forall ((v_ArrVal_2506 (Array Int Int)) (v_subst_3 Int)) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_2506))) (or (not (= (select (select .cse2 v_subst_3) (+ 8 (let ((.cse5 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_2503))) (select (select .cse5 (select (select .cse6 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (select (select .cse5 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|))))) 2)) (forall ((v_ArrVal_2507 (Array Int Int))) (= (select (select (store .cse6 v_subst_3 v_ArrVal_2507) |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse4) 0)))))))))) is different from false [2024-12-02 09:02:31,438 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:31,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 135 treesize of output 136 [2024-12-02 09:02:31,762 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:31,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22256826] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:02:31,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:02:31,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 13] total 30 [2024-12-02 09:02:31,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327833397] [2024-12-02 09:02:31,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:02:31,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-12-02 09:02:31,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:31,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-12-02 09:02:31,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=635, Unknown=2, NotChecked=106, Total=870 [2024-12-02 09:02:31,763 INFO L87 Difference]: Start difference. First operand 327 states and 399 transitions. Second operand has 30 states, 30 states have (on average 2.933333333333333) internal successors, (88), 30 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:37,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:37,740 INFO L93 Difference]: Finished difference Result 607 states and 738 transitions. [2024-12-02 09:02:37,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-12-02 09:02:37,741 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.933333333333333) internal successors, (88), 30 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-12-02 09:02:37,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:37,742 INFO L225 Difference]: With dead ends: 607 [2024-12-02 09:02:37,742 INFO L226 Difference]: Without dead ends: 441 [2024-12-02 09:02:37,743 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 50 SyntacticMatches, 6 SemanticMatches, 50 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=590, Invalid=1866, Unknown=2, NotChecked=194, Total=2652 [2024-12-02 09:02:37,743 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 562 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 357 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:37,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 413 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 649 Invalid, 0 Unknown, 357 Unchecked, 2.1s Time] [2024-12-02 09:02:37,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-12-02 09:02:37,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 266. [2024-12-02 09:02:37,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 264 states have (on average 1.2007575757575757) internal successors, (317), 265 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:37,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 317 transitions. [2024-12-02 09:02:37,817 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 317 transitions. Word has length 34 [2024-12-02 09:02:37,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:37,817 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 317 transitions. [2024-12-02 09:02:37,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.933333333333333) internal successors, (88), 30 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:37,817 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 317 transitions. [2024-12-02 09:02:37,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-12-02 09:02:37,818 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:37,818 INFO L218 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:02:37,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 09:02:38,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:38,018 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:02:38,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:38,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1048879960, now seen corresponding path program 1 times [2024-12-02 09:02:38,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:38,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773268635] [2024-12-02 09:02:38,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:38,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:38,588 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:38,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:38,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773268635] [2024-12-02 09:02:38,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773268635] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:02:38,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688431369] [2024-12-02 09:02:38,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:38,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:38,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:38,590 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:02:38,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 09:02:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:38,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-12-02 09:02:38,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:38,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:38,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:38,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:38,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-12-02 09:02:38,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2024-12-02 09:02:38,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 22 [2024-12-02 09:02:38,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2024-12-02 09:02:38,862 INFO L349 Elim1Store]: treesize reduction 44, result has 10.2 percent of original size [2024-12-02 09:02:38,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 35 [2024-12-02 09:02:38,878 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 27 treesize of output 16 [2024-12-02 09:02:38,883 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-12-02 09:02:38,992 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-12-02 09:02:38,992 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 1 case distinctions, treesize of input 16 treesize of output 15 [2024-12-02 09:02:39,040 INFO L349 Elim1Store]: treesize reduction 72, result has 33.3 percent of original size [2024-12-02 09:02:39,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 48 [2024-12-02 09:02:39,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 36 [2024-12-02 09:02:39,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 36 [2024-12-02 09:02:39,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-12-02 09:02:39,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 20 [2024-12-02 09:02:39,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-12-02 09:02:39,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 09:02:39,721 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2024-12-02 09:02:39,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2024-12-02 09:02:39,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-12-02 09:02:39,894 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:39,894 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:02:40,185 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2700 (Array Int Int)) (|v_ULTIMATE.start_main_~item~0#1.base_91| Int) (v_ArrVal_2701 Int)) (or (= (select (select (let ((.cse0 (store |c_#memory_int#1| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bcki~0#1.base|) |c_ULTIMATE.start_main_~bcki~0#1.offset|) v_ArrVal_2700))) (store .cse0 |v_ULTIMATE.start_main_~item~0#1.base_91| (store (store (select .cse0 |v_ULTIMATE.start_main_~item~0#1.base_91|) 0 v_ArrVal_2701) 4 0))) |c_ULTIMATE.start_main_~bucket~0#1.base|) (+ |c_ULTIMATE.start_main_~bucket~0#1.offset| 8)) 0) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~item~0#1.base_91|) 0)))) is different from false [2024-12-02 09:02:44,308 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2700 (Array Int Int)) (v_ArrVal_2699 (Array Int Int)) (v_ArrVal_2698 (Array Int Int)) (|v_ULTIMATE.start_main_~item~0#1.base_91| Int) (v_ArrVal_2701 Int)) (or (= (select (select (let ((.cse0 (store (store |c_#memory_int#1| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_2699) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_2698) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|) v_ArrVal_2700))) (store .cse0 |v_ULTIMATE.start_main_~item~0#1.base_91| (store (store (select .cse0 |v_ULTIMATE.start_main_~item~0#1.base_91|) 0 v_ArrVal_2701) 4 0))) |c_ULTIMATE.start_main_~bucket~0#1.base|) (+ |c_ULTIMATE.start_main_~bucket~0#1.offset| 8)) 0) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~item~0#1.base_91|) 0)))) is different from false [2024-12-02 09:02:44,330 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2700 (Array Int Int)) (v_ArrVal_2699 (Array Int Int)) (v_ArrVal_2698 (Array Int Int)) (v_ArrVal_2695 Int) (|v_ULTIMATE.start_main_~item~0#1.base_91| Int) (|v_ULTIMATE.start_main_~item~0#1.base_92| Int) (v_ArrVal_2701 Int)) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~item~0#1.base_92|) 0)) (not (= (select (store |c_#valid| |v_ULTIMATE.start_main_~item~0#1.base_92| v_ArrVal_2695) |v_ULTIMATE.start_main_~item~0#1.base_91|) 0)) (= (select (select (let ((.cse0 (store (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_92| v_ArrVal_2699) (select (select (store |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_main_~item~0#1.base_92| v_ArrVal_2698) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|) v_ArrVal_2700))) (store .cse0 |v_ULTIMATE.start_main_~item~0#1.base_91| (store (store (select .cse0 |v_ULTIMATE.start_main_~item~0#1.base_91|) 0 v_ArrVal_2701) 4 0))) |c_ULTIMATE.start_main_~bucket~0#1.base|) (+ |c_ULTIMATE.start_main_~bucket~0#1.offset| 8)) 0))) is different from false [2024-12-02 09:02:44,365 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 12 not checked. [2024-12-02 09:02:44,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688431369] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:02:44,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:02:44,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 31 [2024-12-02 09:02:44,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755536001] [2024-12-02 09:02:44,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:02:44,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-02 09:02:44,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:44,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-02 09:02:44,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=665, Unknown=11, NotChecked=162, Total=930 [2024-12-02 09:02:44,367 INFO L87 Difference]: Start difference. First operand 266 states and 317 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:51,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:51,131 INFO L93 Difference]: Finished difference Result 663 states and 809 transitions. [2024-12-02 09:02:51,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-12-02 09:02:51,132 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-12-02 09:02:51,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:51,133 INFO L225 Difference]: With dead ends: 663 [2024-12-02 09:02:51,133 INFO L226 Difference]: Without dead ends: 547 [2024-12-02 09:02:51,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 55 SyntacticMatches, 5 SemanticMatches, 75 ConstructedPredicates, 3 IntricatePredicates, 2 DeprecatedPredicates, 1453 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=1228, Invalid=4175, Unknown=11, NotChecked=438, Total=5852 [2024-12-02 09:02:51,135 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 1363 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 135 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 983 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:51,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 526 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 727 Invalid, 1 Unknown, 983 Unchecked, 2.3s Time] [2024-12-02 09:02:51,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-12-02 09:02:51,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 365. [2024-12-02 09:02:51,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 363 states have (on average 1.2121212121212122) internal successors, (440), 364 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:51,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 440 transitions. [2024-12-02 09:02:51,263 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 440 transitions. Word has length 37 [2024-12-02 09:02:51,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:51,263 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 440 transitions. [2024-12-02 09:02:51,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:51,263 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 440 transitions. [2024-12-02 09:02:51,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-12-02 09:02:51,264 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:51,264 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 09:02:51,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 09:02:51,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:51,464 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:02:51,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:51,465 INFO L85 PathProgramCache]: Analyzing trace with hash -923113501, now seen corresponding path program 1 times [2024-12-02 09:02:51,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:51,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857393512] [2024-12-02 09:02:51,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:51,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:52,836 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:52,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:52,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857393512] [2024-12-02 09:02:52,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857393512] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:02:52,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455101074] [2024-12-02 09:02:52,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:52,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:52,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:52,838 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:02:52,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 09:02:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:53,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-12-02 09:02:53,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:53,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2024-12-02 09:02:53,128 INFO L349 Elim1Store]: treesize reduction 62, result has 7.5 percent of original size [2024-12-02 09:02:53,128 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 126 treesize of output 99 [2024-12-02 09:02:53,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:53,154 INFO L349 Elim1Store]: treesize reduction 39, result has 11.4 percent of original size [2024-12-02 09:02:53,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 38 [2024-12-02 09:02:53,161 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2024-12-02 09:02:53,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2024-12-02 09:02:53,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2024-12-02 09:02:53,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2024-12-02 09:02:53,308 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-12-02 09:02:53,308 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 1 case distinctions, treesize of input 16 treesize of output 15 [2024-12-02 09:02:53,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:02:53,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 09:02:53,344 INFO L349 Elim1Store]: treesize reduction 12, result has 58.6 percent of original size [2024-12-02 09:02:53,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 29 [2024-12-02 09:02:53,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-12-02 09:02:53,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-12-02 09:02:53,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2024-12-02 09:02:53,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-12-02 09:02:54,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 82 [2024-12-02 09:02:54,214 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-12-02 09:02:54,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 32 [2024-12-02 09:02:54,229 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-12-02 09:02:54,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 43 [2024-12-02 09:02:54,442 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-12-02 09:02:54,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 54 [2024-12-02 09:02:54,459 INFO L349 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2024-12-02 09:02:54,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 35 [2024-12-02 09:02:54,483 INFO L349 Elim1Store]: treesize reduction 32, result has 36.0 percent of original size [2024-12-02 09:02:54,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 46 [2024-12-02 09:02:54,839 INFO L349 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2024-12-02 09:02:54,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 95 treesize of output 49 [2024-12-02 09:02:54,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2024-12-02 09:02:54,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-12-02 09:02:55,000 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:55,001 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:02:55,085 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2909 (Array Int Int))) (let ((.cse0 (+ |c_ULTIMATE.start_main_~bcki~0#1.offset| 4))) (or (= (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base| v_ArrVal_2909) (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bcki~0#1.base|) .cse0)) (+ (select (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~bcki~0#1.base|) .cse0) 4)) (select v_ArrVal_2909 (+ |c_ULTIMATE.start_main_~bcki~0#1.offset| 8))) (not (= (store (select |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base|) .cse0 (select v_ArrVal_2909 .cse0)) v_ArrVal_2909))))) is different from false [2024-12-02 09:02:55,102 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2909 (Array Int Int))) (let ((.cse2 (select (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~bcki~0#1.base|) |c_ULTIMATE.start_main_~bcki~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bcki~0#1.base|) |c_ULTIMATE.start_main_~bcki~0#1.offset|)) (.cse1 (+ .cse2 4))) (or (not (= v_ArrVal_2909 (store (select |c_#memory_int#1| .cse0) .cse1 (select v_ArrVal_2909 .cse1)))) (= (select (select (store |c_#memory_int#1| .cse0 v_ArrVal_2909) (select (select |c_#memory_$Pointer$#1.base| .cse0) .cse1)) (+ (select (select |c_#memory_$Pointer$#1.offset| .cse0) .cse1) 4)) (select v_ArrVal_2909 (+ 8 .cse2))))))) is different from false [2024-12-02 09:02:55,142 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2909 (Array Int Int)) (v_ArrVal_2907 (Array Int Int))) (let ((.cse5 (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~bcki~0#1.base|))) (let ((.cse6 (select .cse5 |c_ULTIMATE.start_main_~bcki~0#1.offset|)) (.cse2 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bcki~0#1.base|))) (let ((.cse0 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base| v_ArrVal_2907)) (.cse1 (select .cse2 |c_ULTIMATE.start_main_~bcki~0#1.offset|)) (.cse4 (+ .cse6 4))) (or (= (let ((.cse3 (+ |c_ULTIMATE.start_main_~bcki~0#1.offset| 4))) (select (select (store .cse0 .cse1 v_ArrVal_2909) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bcki~0#1.base| (store .cse2 .cse3 0)) .cse1) .cse4)) (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~bcki~0#1.base| (store .cse5 .cse3 0)) .cse1) .cse4) 4))) (select v_ArrVal_2909 (+ 8 .cse6))) (not (= (store (select .cse0 .cse1) .cse4 (select v_ArrVal_2909 .cse4)) v_ArrVal_2909))))))) is different from false [2024-12-02 09:02:55,176 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2909 (Array Int Int)) (v_ArrVal_2907 (Array Int Int))) (let ((.cse6 (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~bucket~0#1.base|))) (let ((.cse3 (select .cse6 |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (.cse4 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bucket~0#1.base|))) (let ((.cse0 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_2907)) (.cse1 (select .cse4 |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (.cse2 (+ .cse3 4))) (or (not (= (store (select .cse0 .cse1) .cse2 (select v_ArrVal_2909 .cse2)) v_ArrVal_2909)) (= (select v_ArrVal_2909 (+ .cse3 8)) (let ((.cse5 (+ |c_ULTIMATE.start_main_~bucket~0#1.offset| 4))) (select (select (store .cse0 .cse1 v_ArrVal_2909) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bucket~0#1.base| (store .cse4 .cse5 0)) .cse1) .cse2)) (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~bucket~0#1.base| (store .cse6 .cse5 0)) .cse1) .cse2) 4))))))))) is different from false [2024-12-02 09:02:55,243 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2905 Int) (v_ArrVal_2909 (Array Int Int)) (v_ArrVal_2907 (Array Int Int))) (let ((.cse9 (+ |c_ULTIMATE.start_main_~bcki~0#1.offset| 4))) (let ((.cse6 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~bcki~0#1.base| (store (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~bcki~0#1.base|) .cse9 |c_ULTIMATE.start_main_~item~0#1.offset|)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bcki~0#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bcki~0#1.base|) .cse9 |c_ULTIMATE.start_main_~item~0#1.base|))) (.cse7 (select .cse6 |c_ULTIMATE.start_main_~bucket~0#1.base|))) (let ((.cse8 (select .cse7 |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (.cse4 (select .cse3 |c_ULTIMATE.start_main_~bucket~0#1.base|))) (let ((.cse0 (store (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base| (store (select |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base|) .cse9 v_ArrVal_2905)) |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_2907)) (.cse1 (select .cse4 |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (.cse2 (+ .cse8 4))) (or (not (= v_ArrVal_2909 (store (select .cse0 .cse1) .cse2 (select v_ArrVal_2909 .cse2)))) (= (let ((.cse5 (+ |c_ULTIMATE.start_main_~bucket~0#1.offset| 4))) (select (select (store .cse0 .cse1 v_ArrVal_2909) (select (select (store .cse3 |c_ULTIMATE.start_main_~bucket~0#1.base| (store .cse4 .cse5 0)) .cse1) .cse2)) (+ (select (select (store .cse6 |c_ULTIMATE.start_main_~bucket~0#1.base| (store .cse7 .cse5 0)) .cse1) .cse2) 4))) (select v_ArrVal_2909 (+ .cse8 8)))))))))) is different from false [2024-12-02 09:02:56,929 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:56,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 703 treesize of output 694 [2024-12-02 09:02:57,635 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2024-12-02 09:02:57,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455101074] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:02:57,635 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:02:57,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 43 [2024-12-02 09:02:57,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029103999] [2024-12-02 09:02:57,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:02:57,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-12-02 09:02:57,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:57,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-12-02 09:02:57,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1250, Unknown=5, NotChecked=380, Total=1806 [2024-12-02 09:02:57,636 INFO L87 Difference]: Start difference. First operand 365 states and 440 transitions. Second operand has 43 states, 43 states have (on average 2.4651162790697674) internal successors, (106), 43 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:03:05,854 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse6 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bucket~0#1.base|))) (let ((.cse0 (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~bucket~0#1.base|)) (.cse1 (select .cse6 0))) (and (= (select .cse0 4) 0) (= (select .cse0 0) 0) (exists ((|v_ULTIMATE.start_main_~bcki~0#1.base_135| Int)) (and (= (select |c_#valid| |v_ULTIMATE.start_main_~bcki~0#1.base_135|) 1) (not (= |v_ULTIMATE.start_main_~bcki~0#1.base_135| .cse1)) (not (= |v_ULTIMATE.start_main_~bcki~0#1.base_135| |c_ULTIMATE.start_main_~bucket~0#1.base|)))) (forall ((v_ArrVal_2909 (Array Int Int)) (v_ArrVal_2907 (Array Int Int))) (let ((.cse5 (select .cse0 |c_ULTIMATE.start_main_~bucket~0#1.offset|))) (let ((.cse2 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_2907)) (.cse3 (select .cse6 |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (.cse4 (+ .cse5 4))) (or (not (= (store (select .cse2 .cse3) .cse4 (select v_ArrVal_2909 .cse4)) v_ArrVal_2909)) (= (select v_ArrVal_2909 (+ .cse5 8)) (let ((.cse7 (+ |c_ULTIMATE.start_main_~bucket~0#1.offset| 4))) (select (select (store .cse2 .cse3 v_ArrVal_2909) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bucket~0#1.base| (store .cse6 .cse7 0)) .cse3) .cse4)) (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~bucket~0#1.base| (store .cse0 .cse7 0)) .cse3) .cse4) 4)))))))) (= (select (select |c_#memory_int#1| |c_ULTIMATE.start_main_~bucket~0#1.base|) 8) 0) (= (select |c_#valid| |c_ULTIMATE.start_main_~bucket~0#1.base|) 1) (= |c_ULTIMATE.start_main_~bucket~0#1.offset| 0) (not (= .cse1 |c_ULTIMATE.start_main_~bucket~0#1.base|)) (= (select |c_#valid| .cse1) 1)))) is different from false [2024-12-02 09:03:08,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:08,149 INFO L93 Difference]: Finished difference Result 864 states and 1052 transitions. [2024-12-02 09:03:08,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-12-02 09:03:08,150 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.4651162790697674) internal successors, (106), 43 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-12-02 09:03:08,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:08,151 INFO L225 Difference]: With dead ends: 864 [2024-12-02 09:03:08,151 INFO L226 Difference]: Without dead ends: 750 [2024-12-02 09:03:08,152 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 48 SyntacticMatches, 7 SemanticMatches, 73 ConstructedPredicates, 6 IntricatePredicates, 2 DeprecatedPredicates, 1415 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=697, Invalid=4007, Unknown=12, NotChecked=834, Total=5550 [2024-12-02 09:03:08,153 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 370 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 44 mSolverCounterUnsat, 41 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 2854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 41 IncrementalHoareTripleChecker+Unknown, 1273 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:08,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 944 Invalid, 2854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1496 Invalid, 41 Unknown, 1273 Unchecked, 4.9s Time] [2024-12-02 09:03:08,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-12-02 09:03:08,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 586. [2024-12-02 09:03:08,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 584 states have (on average 1.2123287671232876) internal successors, (708), 585 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:03:08,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 708 transitions. [2024-12-02 09:03:08,354 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 708 transitions. Word has length 37 [2024-12-02 09:03:08,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:08,355 INFO L471 AbstractCegarLoop]: Abstraction has 586 states and 708 transitions. [2024-12-02 09:03:08,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.4651162790697674) internal successors, (106), 43 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:03:08,355 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 708 transitions. [2024-12-02 09:03:08,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-12-02 09:03:08,355 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:08,355 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:08,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-12-02 09:03:08,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:03:08,556 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:03:08,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:08,556 INFO L85 PathProgramCache]: Analyzing trace with hash 2050022973, now seen corresponding path program 1 times [2024-12-02 09:03:08,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:08,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868478846] [2024-12-02 09:03:08,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:08,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:09,100 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:03:09,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:09,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868478846] [2024-12-02 09:03:09,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868478846] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:03:09,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279216463] [2024-12-02 09:03:09,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:09,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:03:09,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:03:09,103 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:03:09,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-12-02 09:03:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:09,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-12-02 09:03:09,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:03:09,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2024-12-02 09:03:09,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 40 [2024-12-02 09:03:09,428 INFO L349 Elim1Store]: treesize reduction 62, result has 21.5 percent of original size [2024-12-02 09:03:09,429 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 94 treesize of output 93 [2024-12-02 09:03:09,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 09:03:09,468 INFO L349 Elim1Store]: treesize reduction 124, result has 10.8 percent of original size [2024-12-02 09:03:09,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 83 treesize of output 70 [2024-12-02 09:03:09,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 1 [2024-12-02 09:03:09,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:03:09,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 45 [2024-12-02 09:03:09,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 23 [2024-12-02 09:03:09,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 09:03:09,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:03:09,674 INFO L349 Elim1Store]: treesize reduction 56, result has 16.4 percent of original size [2024-12-02 09:03:09,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 111 treesize of output 86 [2024-12-02 09:03:09,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:03:09,717 INFO L349 Elim1Store]: treesize reduction 60, result has 46.4 percent of original size [2024-12-02 09:03:09,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 72 [2024-12-02 09:03:09,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:03:09,768 INFO L349 Elim1Store]: treesize reduction 12, result has 67.6 percent of original size [2024-12-02 09:03:09,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 37 [2024-12-02 09:03:09,896 INFO L349 Elim1Store]: treesize reduction 56, result has 16.4 percent of original size [2024-12-02 09:03:09,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 109 treesize of output 84 [2024-12-02 09:03:09,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:03:09,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 48 [2024-12-02 09:03:10,726 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-02 09:03:10,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 51 [2024-12-02 09:03:10,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 09:03:10,766 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:03:10,766 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:03:10,923 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_3086 (Array Int Int)) (v_ArrVal_3087 (Array Int Int))) (= (let ((.cse3 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_3086)) (.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_3087))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|))) (select (select .cse0 (select (select .cse0 .cse1) .cse2)) (+ (select (select .cse3 .cse1) .cse2) 4)))) 0)) (forall ((v_ArrVal_3086 (Array Int Int)) (v_ArrVal_3087 (Array Int Int))) (= (let ((.cse4 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_3086)) (.cse5 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_3087))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (.cse7 (select (select .cse4 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|))) (select (select .cse4 (select (select .cse5 .cse6) .cse7)) (+ (select (select .cse4 .cse6) .cse7) 4)))) 0))) is different from false [2024-12-02 09:03:11,047 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:03:11,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279216463] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:03:11,048 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:03:11,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 20 [2024-12-02 09:03:11,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776564042] [2024-12-02 09:03:11,048 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:03:11,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 09:03:11,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:11,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 09:03:11,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=289, Unknown=1, NotChecked=34, Total=380 [2024-12-02 09:03:11,049 INFO L87 Difference]: Start difference. First operand 586 states and 708 transitions. Second operand has 20 states, 20 states have (on average 3.85) internal successors, (77), 20 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:03:12,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:12,739 INFO L93 Difference]: Finished difference Result 866 states and 1043 transitions. [2024-12-02 09:03:12,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 09:03:12,740 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.85) internal successors, (77), 20 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-12-02 09:03:12,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:12,742 INFO L225 Difference]: With dead ends: 866 [2024-12-02 09:03:12,743 INFO L226 Difference]: Without dead ends: 785 [2024-12-02 09:03:12,743 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=176, Invalid=639, Unknown=1, NotChecked=54, Total=870 [2024-12-02 09:03:12,745 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 392 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 143 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:12,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 303 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 347 Invalid, 0 Unknown, 143 Unchecked, 0.8s Time] [2024-12-02 09:03:12,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2024-12-02 09:03:12,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 675. [2024-12-02 09:03:12,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 673 states have (on average 1.2169390787518573) internal successors, (819), 674 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:03:12,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 819 transitions. [2024-12-02 09:03:12,994 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 819 transitions. Word has length 37 [2024-12-02 09:03:12,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:12,994 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 819 transitions. [2024-12-02 09:03:12,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.85) internal successors, (77), 20 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:03:12,994 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 819 transitions. [2024-12-02 09:03:12,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-12-02 09:03:12,994 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:12,994 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 09:03:13,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-12-02 09:03:13,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-12-02 09:03:13,195 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:03:13,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:13,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1218798589, now seen corresponding path program 1 times [2024-12-02 09:03:13,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:13,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189732447] [2024-12-02 09:03:13,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:13,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:14,262 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:03:14,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:14,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189732447] [2024-12-02 09:03:14,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189732447] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:03:14,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991493826] [2024-12-02 09:03:14,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:14,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:03:14,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:03:14,265 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:03:14,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-12-02 09:03:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:14,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 79 conjuncts are in the unsatisfiable core [2024-12-02 09:03:14,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:03:14,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2024-12-02 09:03:14,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 40 [2024-12-02 09:03:14,586 INFO L349 Elim1Store]: treesize reduction 62, result has 21.5 percent of original size [2024-12-02 09:03:14,587 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 94 treesize of output 93 [2024-12-02 09:03:14,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 09:03:14,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 31 [2024-12-02 09:03:14,633 INFO L349 Elim1Store]: treesize reduction 124, result has 10.8 percent of original size [2024-12-02 09:03:14,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 83 treesize of output 70 [2024-12-02 09:03:14,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:03:14,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 50 [2024-12-02 09:03:14,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 23 [2024-12-02 09:03:14,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 31 [2024-12-02 09:03:14,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:03:14,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:03:14,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:03:14,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:03:14,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 92 [2024-12-02 09:03:14,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:03:14,919 INFO L349 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2024-12-02 09:03:14,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 155 treesize of output 104 [2024-12-02 09:03:14,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:03:14,957 INFO L349 Elim1Store]: treesize reduction 12, result has 67.6 percent of original size [2024-12-02 09:03:14,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 37 [2024-12-02 09:03:15,105 INFO L349 Elim1Store]: treesize reduction 88, result has 14.6 percent of original size [2024-12-02 09:03:15,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 164 treesize of output 105 [2024-12-02 09:03:15,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:03:15,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 95 [2024-12-02 09:03:16,095 INFO L349 Elim1Store]: treesize reduction 96, result has 13.5 percent of original size [2024-12-02 09:03:16,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 176 treesize of output 117 [2024-12-02 09:03:16,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:03:16,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 99 [2024-12-02 09:03:16,564 INFO L349 Elim1Store]: treesize reduction 100, result has 16.0 percent of original size [2024-12-02 09:03:16,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 186 treesize of output 129 [2024-12-02 09:03:16,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:03:16,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 95 [2024-12-02 09:03:17,855 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:03:17,855 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:03:25,556 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:03:25,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991493826] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:03:25,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:03:25,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 14] total 35 [2024-12-02 09:03:25,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270191788] [2024-12-02 09:03:25,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:03:25,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-12-02 09:03:25,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:25,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-12-02 09:03:25,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1012, Unknown=1, NotChecked=0, Total=1190 [2024-12-02 09:03:25,558 INFO L87 Difference]: Start difference. First operand 675 states and 819 transitions. Second operand has 35 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 35 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:03:33,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:33,904 INFO L93 Difference]: Finished difference Result 749 states and 901 transitions. [2024-12-02 09:03:33,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-12-02 09:03:33,904 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 35 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2024-12-02 09:03:33,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:33,906 INFO L225 Difference]: With dead ends: 749 [2024-12-02 09:03:33,906 INFO L226 Difference]: Without dead ends: 736 [2024-12-02 09:03:33,907 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=559, Invalid=2632, Unknown=1, NotChecked=0, Total=3192 [2024-12-02 09:03:33,907 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 519 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:33,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 513 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-12-02 09:03:33,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2024-12-02 09:03:34,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 700. [2024-12-02 09:03:34,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 698 states have (on average 1.2091690544412608) internal successors, (844), 699 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:03:34,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 844 transitions. [2024-12-02 09:03:34,217 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 844 transitions. Word has length 39 [2024-12-02 09:03:34,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:34,217 INFO L471 AbstractCegarLoop]: Abstraction has 700 states and 844 transitions. [2024-12-02 09:03:34,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 35 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:03:34,217 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 844 transitions. [2024-12-02 09:03:34,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-02 09:03:34,218 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:34,218 INFO L218 NwaCegarLoop]: trace histogram [5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:34,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-12-02 09:03:34,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:03:34,419 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:03:34,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:34,419 INFO L85 PathProgramCache]: Analyzing trace with hash -552801269, now seen corresponding path program 2 times [2024-12-02 09:03:34,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:34,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658142483] [2024-12-02 09:03:34,420 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 09:03:34,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:34,469 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 09:03:34,469 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:03:35,740 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 09:03:35,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:35,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658142483] [2024-12-02 09:03:35,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658142483] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:03:35,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943534681] [2024-12-02 09:03:35,740 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 09:03:35,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:03:35,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:03:35,742 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:03:35,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-12-02 09:03:36,250 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 09:03:36,250 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:03:36,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 79 conjuncts are in the unsatisfiable core [2024-12-02 09:03:36,259 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:03:36,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2024-12-02 09:03:36,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2024-12-02 09:03:36,329 INFO L349 Elim1Store]: treesize reduction 62, result has 7.5 percent of original size [2024-12-02 09:03:36,329 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 159 treesize of output 126 [2024-12-02 09:03:36,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 42 [2024-12-02 09:03:36,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2024-12-02 09:03:36,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:03:36,386 INFO L349 Elim1Store]: treesize reduction 39, result has 11.4 percent of original size [2024-12-02 09:03:36,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 38 [2024-12-02 09:03:36,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2024-12-02 09:03:36,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-12-02 09:03:36,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:03:36,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 34 [2024-12-02 09:03:36,653 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-12-02 09:03:36,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 23 [2024-12-02 09:03:36,753 INFO L349 Elim1Store]: treesize reduction 72, result has 33.3 percent of original size [2024-12-02 09:03:36,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 48 [2024-12-02 09:03:36,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-12-02 09:03:36,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-12-02 09:03:36,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 40 [2024-12-02 09:03:36,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-12-02 09:03:37,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:03:37,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 38 [2024-12-02 09:03:37,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-12-02 09:03:37,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:03:37,849 INFO L349 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2024-12-02 09:03:37,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 09:03:50,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:03:50,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 117 [2024-12-02 09:03:50,373 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-12-02 09:03:50,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 23 [2024-12-02 09:03:50,505 INFO L349 Elim1Store]: treesize reduction 8, result has 90.6 percent of original size [2024-12-02 09:03:50,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 129 treesize of output 191 [2024-12-02 09:03:50,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 114 [2024-12-02 09:03:51,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 09:03:51,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 72 [2024-12-02 09:03:51,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 66 [2024-12-02 09:03:51,920 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:03:51,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 92 treesize of output 66 [2024-12-02 09:03:51,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 29 [2024-12-02 09:03:52,156 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 09:03:52,156 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:03:52,333 WARN L851 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~item~0#1.offset| Int) (v_ArrVal_3490 (Array Int Int)) (v_ArrVal_3491 (Array Int Int))) (= (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_main_~item~0#1.base| (store (select |c_#memory_int#1| |c_ULTIMATE.start_main_~item~0#1.base|) (+ 4 |ULTIMATE.start_main_~item~0#1.offset|) 1)) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_3491) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_3490) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|) 8)) 1)) is different from false [2024-12-02 09:03:52,353 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:03:52,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2024-12-02 09:03:52,850 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~item~0#1.base_117| Int) (|v_ULTIMATE.start_main_~bcki~0#1.offset_154| Int) (v_ArrVal_3485 (Array Int Int)) (|v_ULTIMATE.start_main_~item~0#1.offset_116| Int) (v_arrayElimArr_40 (Array Int Int)) (|ULTIMATE.start_main_~item~0#1.offset| Int) (v_ArrVal_3490 (Array Int Int)) (v_ArrVal_3491 (Array Int Int))) (or (= (let ((.cse0 (+ 4 |v_ULTIMATE.start_main_~bcki~0#1.offset_154|))) (select (select (store (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_3485) |v_ULTIMATE.start_main_~item~0#1.base_117| v_arrayElimArr_40) (select (select (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bucket~0#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse0 |c_ULTIMATE.start_main_~item~0#1.base|)) |v_ULTIMATE.start_main_~item~0#1.base_117| v_ArrVal_3491) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (+ 8 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~bucket~0#1.base| (store (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse0 |ULTIMATE.start_main_~item~0#1.offset|)) |v_ULTIMATE.start_main_~item~0#1.base_117| v_ArrVal_3490) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)))) 1) (< |v_ULTIMATE.start_main_~bcki~0#1.offset_154| |c_ULTIMATE.start_main_~bucket~0#1.offset|) (not (= (select v_arrayElimArr_40 (+ |v_ULTIMATE.start_main_~item~0#1.offset_116| 4)) 1)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~item~0#1.base_117|) 0)))) is different from false [2024-12-02 09:03:52,887 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~item~0#1.base_117| Int) (v_ArrVal_3481 (Array Int Int)) (|v_ULTIMATE.start_main_~bcki~0#1.offset_154| Int) (v_ArrVal_3482 (Array Int Int)) (v_ArrVal_3483 (Array Int Int)) (v_ArrVal_3485 (Array Int Int)) (|v_ULTIMATE.start_main_~item~0#1.offset_116| Int) (v_arrayElimArr_40 (Array Int Int)) (|ULTIMATE.start_main_~item~0#1.offset| Int) (v_ArrVal_3490 (Array Int Int)) (v_ArrVal_3491 (Array Int Int))) (or (= (let ((.cse1 (+ 4 |v_ULTIMATE.start_main_~bcki~0#1.offset_154|))) (select (select (store (store (store |c_#memory_int#1| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_3481) |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_3485) |v_ULTIMATE.start_main_~item~0#1.base_117| v_arrayElimArr_40) (select (select (store (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_3483))) (store .cse0 |c_ULTIMATE.start_main_~bucket~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse1 |c_ULTIMATE.start_main_~item~0#1.base|))) |v_ULTIMATE.start_main_~item~0#1.base_117| v_ArrVal_3491) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (+ (select (select (store (let ((.cse2 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_3482))) (store .cse2 |c_ULTIMATE.start_main_~bucket~0#1.base| (store (select .cse2 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse1 |ULTIMATE.start_main_~item~0#1.offset|))) |v_ULTIMATE.start_main_~item~0#1.base_117| v_ArrVal_3490) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|) 8))) 1) (< |v_ULTIMATE.start_main_~bcki~0#1.offset_154| |c_ULTIMATE.start_main_~bucket~0#1.offset|) (not (= (select v_arrayElimArr_40 (+ |v_ULTIMATE.start_main_~item~0#1.offset_116| 4)) 1)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~item~0#1.base_117|) 0)))) is different from false [2024-12-02 09:03:53,095 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~item~0#1.offset_116| Int) (v_ArrVal_3477 Int) (v_arrayElimArr_40 (Array Int Int)) (v_ArrVal_3490 (Array Int Int)) (v_ArrVal_3491 (Array Int Int)) (|v_ULTIMATE.start_main_~item~0#1.base_117| Int) (v_ArrVal_3481 (Array Int Int)) (|v_ULTIMATE.start_main_~bcki~0#1.offset_154| Int) (v_ArrVal_3482 (Array Int Int)) (v_ArrVal_3483 (Array Int Int)) (v_ArrVal_3485 (Array Int Int)) (|v_ULTIMATE.start_main_~item~0#1.base_118| Int) (|ULTIMATE.start_main_~item~0#1.offset| Int)) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~item~0#1.base_118|) 0)) (= (let ((.cse1 (+ 4 |v_ULTIMATE.start_main_~bcki~0#1.offset_154|))) (select (select (store (store (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_118| v_ArrVal_3481) |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_3485) |v_ULTIMATE.start_main_~item~0#1.base_117| v_arrayElimArr_40) (select (select (store (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_main_~item~0#1.base_118| v_ArrVal_3483))) (store .cse0 |c_ULTIMATE.start_main_~bucket~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse1 |v_ULTIMATE.start_main_~item~0#1.base_118|))) |v_ULTIMATE.start_main_~item~0#1.base_117| v_ArrVal_3491) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (+ (select (select (store (let ((.cse2 (store |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_main_~item~0#1.base_118| v_ArrVal_3482))) (store .cse2 |c_ULTIMATE.start_main_~bucket~0#1.base| (store (select .cse2 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse1 |ULTIMATE.start_main_~item~0#1.offset|))) |v_ULTIMATE.start_main_~item~0#1.base_117| v_ArrVal_3490) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|) 8))) 1) (not (= (select (store |c_#valid| |v_ULTIMATE.start_main_~item~0#1.base_118| v_ArrVal_3477) |v_ULTIMATE.start_main_~item~0#1.base_117|) 0)) (< |v_ULTIMATE.start_main_~bcki~0#1.offset_154| |c_ULTIMATE.start_main_~bucket~0#1.offset|) (not (= (select v_arrayElimArr_40 (+ |v_ULTIMATE.start_main_~item~0#1.offset_116| 4)) 1)))) is different from false [2024-12-02 09:03:53,198 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 5 not checked. [2024-12-02 09:03:53,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943534681] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:03:53,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:03:53,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 30 [2024-12-02 09:03:53,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702211376] [2024-12-02 09:03:53,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:03:53,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-12-02 09:03:53,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:53,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-12-02 09:03:53,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=568, Unknown=8, NotChecked=204, Total=870 [2024-12-02 09:03:53,199 INFO L87 Difference]: Start difference. First operand 700 states and 844 transitions. Second operand has 30 states, 30 states have (on average 3.2666666666666666) internal successors, (98), 30 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:03:57,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:57,881 INFO L93 Difference]: Finished difference Result 1134 states and 1377 transitions. [2024-12-02 09:03:57,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 09:03:57,882 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.2666666666666666) internal successors, (98), 30 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2024-12-02 09:03:57,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:57,885 INFO L225 Difference]: With dead ends: 1134 [2024-12-02 09:03:57,885 INFO L226 Difference]: Without dead ends: 1042 [2024-12-02 09:03:57,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 64 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=214, Invalid=850, Unknown=8, NotChecked=260, Total=1332 [2024-12-02 09:03:57,887 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 276 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 347 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:57,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 473 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 569 Invalid, 0 Unknown, 347 Unchecked, 2.4s Time] [2024-12-02 09:03:57,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2024-12-02 09:03:58,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 936. [2024-12-02 09:03:58,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 934 states have (on average 1.2119914346895075) internal successors, (1132), 935 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:03:58,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1132 transitions. [2024-12-02 09:03:58,254 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1132 transitions. Word has length 40 [2024-12-02 09:03:58,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:58,254 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1132 transitions. [2024-12-02 09:03:58,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.2666666666666666) internal successors, (98), 30 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:03:58,255 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1132 transitions. [2024-12-02 09:03:58,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-02 09:03:58,255 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:58,256 INFO L218 NwaCegarLoop]: trace histogram [5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:58,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-12-02 09:03:58,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:03:58,456 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:03:58,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:58,456 INFO L85 PathProgramCache]: Analyzing trace with hash 2053222285, now seen corresponding path program 1 times [2024-12-02 09:03:58,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:58,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770965903] [2024-12-02 09:03:58,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:58,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:00,206 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:04:00,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:00,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770965903] [2024-12-02 09:04:00,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770965903] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:04:00,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103664686] [2024-12-02 09:04:00,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:00,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:04:00,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:04:00,209 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:04:00,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-12-02 09:04:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:00,490 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 91 conjuncts are in the unsatisfiable core [2024-12-02 09:04:00,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:04:00,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2024-12-02 09:04:00,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2024-12-02 09:04:00,572 INFO L349 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2024-12-02 09:04:00,572 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 78 [2024-12-02 09:04:00,648 INFO L349 Elim1Store]: treesize reduction 102, result has 32.5 percent of original size [2024-12-02 09:04:00,648 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 2 case distinctions, treesize of input 52 treesize of output 59 [2024-12-02 09:04:00,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 36 [2024-12-02 09:04:00,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 19 [2024-12-02 09:04:00,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2024-12-02 09:04:00,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 09:04:00,765 INFO L349 Elim1Store]: treesize reduction 124, result has 10.8 percent of original size [2024-12-02 09:04:00,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 83 treesize of output 70 [2024-12-02 09:04:01,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:04:01,023 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-12-02 09:04:01,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 75 [2024-12-02 09:04:01,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:04:01,111 INFO L349 Elim1Store]: treesize reduction 90, result has 36.6 percent of original size [2024-12-02 09:04:01,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 69 [2024-12-02 09:04:01,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2024-12-02 09:04:01,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:04:01,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 49 [2024-12-02 09:04:01,364 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-12-02 09:04:01,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 126 treesize of output 87 [2024-12-02 09:04:01,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2024-12-02 09:04:01,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:04:01,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 49 [2024-12-02 09:04:02,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:04:02,642 INFO L349 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2024-12-02 09:04:02,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 149 treesize of output 86 [2024-12-02 09:04:02,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:04:02,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:04:02,703 INFO L349 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2024-12-02 09:04:02,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 67 [2024-12-02 09:04:02,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2024-12-02 09:04:03,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:04:03,257 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-12-02 09:04:03,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 217 treesize of output 154 [2024-12-02 09:04:03,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:04:03,461 INFO L349 Elim1Store]: treesize reduction 12, result has 93.4 percent of original size [2024-12-02 09:04:03,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 144 treesize of output 280 [2024-12-02 09:04:03,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:04:03,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 139 [2024-12-02 09:04:03,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2024-12-02 09:04:04,725 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-12-02 09:04:04,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 430 treesize of output 309 [2024-12-02 09:04:04,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:04:04,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 378 treesize of output 366 [2024-12-02 09:04:04,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2024-12-02 09:04:14,941 WARN L286 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 630 DAG size of output: 420 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-12-02 09:04:14,942 INFO L349 Elim1Store]: treesize reduction 1280, result has 43.1 percent of original size [2024-12-02 09:04:14,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 26 select indices, 26 select index equivalence classes, 1 disjoint index pairs (out of 325 index pairs), introduced 31 new quantified variables, introduced 325 case distinctions, treesize of input 945 treesize of output 1396 [2024-12-02 09:04:15,166 INFO L224 Elim1Store]: Index analysis took 145 ms [2024-12-02 09:04:17,404 INFO L349 Elim1Store]: treesize reduction 40, result has 93.4 percent of original size [2024-12-02 09:04:17,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 1 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 146 case distinctions, treesize of input 415 treesize of output 911 [2024-12-02 09:07:54,540 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-12-02 09:07:54,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2024-12-02 09:07:54,541 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-12-02 09:07:54,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-12-02 09:07:54,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-12-02 09:07:54,742 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:147) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:111) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.assertTerm(WrapperScript.java:158) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:584) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.<init>(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 60 more [2024-12-02 09:07:54,747 INFO L158 Benchmark]: Toolchain (without parser) took 456116.87ms. Allocated memory was 117.4MB in the beginning and 587.2MB in the end (delta: 469.8MB). Free memory was 92.2MB in the beginning and 198.4MB in the end (delta: -106.3MB). Peak memory consumption was 382.6MB. Max. memory is 16.1GB. [2024-12-02 09:07:54,748 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 72.8MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 09:07:54,748 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.39ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 74.0MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 09:07:54,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.03ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 72.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 09:07:54,748 INFO L158 Benchmark]: Boogie Preprocessor took 39.83ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 70.0MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 09:07:54,748 INFO L158 Benchmark]: RCFGBuilder took 345.81ms. Allocated memory is still 117.4MB. Free memory was 69.8MB in the beginning and 51.9MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 09:07:54,748 INFO L158 Benchmark]: TraceAbstraction took 455390.88ms. Allocated memory was 117.4MB in the beginning and 587.2MB in the end (delta: 469.8MB). Free memory was 51.3MB in the beginning and 198.4MB in the end (delta: -147.1MB). Peak memory consumption was 340.6MB. Max. memory is 16.1GB. [2024-12-02 09:07:54,750 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 72.8MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.39ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 74.0MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.03ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 72.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.83ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 70.0MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 345.81ms. Allocated memory is still 117.4MB. Free memory was 69.8MB in the beginning and 51.9MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 455390.88ms. Allocated memory was 117.4MB in the beginning and 587.2MB in the end (delta: 469.8MB). Free memory was 51.3MB in the beginning and 198.4MB in the end (delta: -147.1MB). Peak memory consumption was 340.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/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_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-buckets-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/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 c6b726a83620fff2a21a6dbfdec50e244c1786dd86dd76b1719515a59b3627ac --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 09:07:56,702 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 09:07:56,798 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 09:07:56,805 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 09:07:56,805 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 09:07:56,830 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 09:07:56,831 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 09:07:56,831 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 09:07:56,831 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 09:07:56,832 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 09:07:56,832 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 09:07:56,832 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 09:07:56,832 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 09:07:56,832 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 09:07:56,832 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 09:07:56,833 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 09:07:56,833 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 09:07:56,833 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 09:07:56,833 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 09:07:56,833 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 09:07:56,833 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 09:07:56,833 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 09:07:56,833 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 09:07:56,833 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 09:07:56,834 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 09:07:56,834 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 09:07:56,834 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 09:07:56,834 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 09:07:56,834 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 09:07:56,834 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 09:07:56,834 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 09:07:56,834 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 09:07:56,834 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 09:07:56,834 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 09:07:56,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:07:56,834 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 09:07:56,834 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 09:07:56,835 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 09:07:56,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 09:07:56,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:07:56,835 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 09:07:56,835 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 09:07:56,835 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 09:07:56,835 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 09:07:56,836 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 09:07:56,836 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 09:07:56,836 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 09:07:56,836 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 09:07:56,836 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 09:07:56,836 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 09:07:56,836 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_200f7d83-6006-40be-accf-5d73fa1e1341/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 -> c6b726a83620fff2a21a6dbfdec50e244c1786dd86dd76b1719515a59b3627ac [2024-12-02 09:07:57,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 09:07:57,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 09:07:57,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 09:07:57,099 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 09:07:57,099 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 09:07:57,100 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/forester-heap/sll-buckets-1.i [2024-12-02 09:08:00,168 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/data/eb1a383aa/db62af6727eb46a79ac25f7263010cc1/FLAGab60f9383 [2024-12-02 09:08:00,421 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 09:08:00,422 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i [2024-12-02 09:08:00,438 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/data/eb1a383aa/db62af6727eb46a79ac25f7263010cc1/FLAGab60f9383 [2024-12-02 09:08:00,457 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/data/eb1a383aa/db62af6727eb46a79ac25f7263010cc1 [2024-12-02 09:08:00,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 09:08:00,461 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 09:08:00,463 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 09:08:00,463 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 09:08:00,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 09:08:00,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:08:00" (1/1) ... [2024-12-02 09:08:00,470 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10c079f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:00, skipping insertion in model container [2024-12-02 09:08:00,470 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:08:00" (1/1) ... [2024-12-02 09:08:00,507 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 09:08:00,818 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_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i[22663,22676] [2024-12-02 09:08:00,823 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_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i[22734,22747] [2024-12-02 09:08:00,825 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_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i[22862,22875] [2024-12-02 09:08:00,830 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_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i[23275,23288] [2024-12-02 09:08:00,831 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_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i[23364,23377] [2024-12-02 09:08:00,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 09:08:00,849 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 09:08:00,890 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_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i[22663,22676] [2024-12-02 09:08:00,891 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_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i[22734,22747] [2024-12-02 09:08:00,892 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_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i[22862,22875] [2024-12-02 09:08:00,898 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_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i[23275,23288] [2024-12-02 09:08:00,899 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_200f7d83-6006-40be-accf-5d73fa1e1341/sv-benchmarks/c/forester-heap/sll-buckets-1.i[23364,23377] [2024-12-02 09:08:00,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 09:08:00,931 INFO L204 MainTranslator]: Completed translation [2024-12-02 09:08:00,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:00 WrapperNode [2024-12-02 09:08:00,931 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 09:08:00,932 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 09:08:00,933 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 09:08:00,933 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 09:08:00,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:00" (1/1) ... [2024-12-02 09:08:00,956 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:00" (1/1) ... [2024-12-02 09:08:00,980 INFO L138 Inliner]: procedures = 122, calls = 42, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 143 [2024-12-02 09:08:00,980 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 09:08:00,981 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 09:08:00,981 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 09:08:00,981 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 09:08:00,991 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:00" (1/1) ... [2024-12-02 09:08:00,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:00" (1/1) ... [2024-12-02 09:08:00,996 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:00" (1/1) ... [2024-12-02 09:08:01,015 INFO L175 MemorySlicer]: Split 32 memory accesses to 2 slices as follows [2, 30]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 16 writes are split as follows [0, 16]. [2024-12-02 09:08:01,015 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:00" (1/1) ... [2024-12-02 09:08:01,015 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:00" (1/1) ... [2024-12-02 09:08:01,026 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:00" (1/1) ... [2024-12-02 09:08:01,027 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:00" (1/1) ... [2024-12-02 09:08:01,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:00" (1/1) ... [2024-12-02 09:08:01,033 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:00" (1/1) ... [2024-12-02 09:08:01,034 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:00" (1/1) ... [2024-12-02 09:08:01,036 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 09:08:01,037 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 09:08:01,037 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 09:08:01,037 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 09:08:01,038 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:00" (1/1) ... [2024-12-02 09:08:01,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:08:01,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:08:01,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 09:08:01,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 09:08:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 09:08:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 09:08:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 09:08:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 09:08:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 09:08:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 09:08:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 09:08:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 09:08:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 09:08:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-02 09:08:01,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-02 09:08:01,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 09:08:01,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 09:08:01,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 09:08:01,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 09:08:01,234 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 09:08:01,237 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 09:08:04,346 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-12-02 09:08:04,346 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 09:08:04,356 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 09:08:04,356 INFO L312 CfgBuilder]: Removed 10 assume(true) statements. [2024-12-02 09:08:04,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:08:04 BoogieIcfgContainer [2024-12-02 09:08:04,357 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 09:08:04,359 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 09:08:04,359 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 09:08:04,364 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 09:08:04,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:08:00" (1/3) ... [2024-12-02 09:08:04,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee0f8af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:08:04, skipping insertion in model container [2024-12-02 09:08:04,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:08:00" (2/3) ... [2024-12-02 09:08:04,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee0f8af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:08:04, skipping insertion in model container [2024-12-02 09:08:04,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:08:04" (3/3) ... [2024-12-02 09:08:04,367 INFO L128 eAbstractionObserver]: Analyzing ICFG sll-buckets-1.i [2024-12-02 09:08:04,380 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 09:08:04,382 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sll-buckets-1.i that has 1 procedures, 49 locations, 1 initial locations, 10 loop locations, and 5 error locations. [2024-12-02 09:08:04,425 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 09:08:04,436 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;@16ba7522, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 09:08:04,436 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-12-02 09:08:04,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 43 states have (on average 1.7674418604651163) internal successors, (76), 48 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:08:04,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-02 09:08:04,445 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:08:04,446 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:08:04,446 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:08:04,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:08:04,450 INFO L85 PathProgramCache]: Analyzing trace with hash 294364465, now seen corresponding path program 1 times [2024-12-02 09:08:04,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:08:04,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [119684007] [2024-12-02 09:08:04,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:08:04,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:08:04,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:08:04,463 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:08:04,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 09:08:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:08:04,625 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 09:08:04,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:08:04,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:08:04,729 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:08:04,730 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:08:04,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119684007] [2024-12-02 09:08:04,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119684007] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:08:04,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:08:04,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:08:04,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055622658] [2024-12-02 09:08:04,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:08:04,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:08:04,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:08:04,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:08:04,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:08:04,755 INFO L87 Difference]: Start difference. First operand has 49 states, 43 states have (on average 1.7674418604651163) internal successors, (76), 48 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:08:04,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:08:04,929 INFO L93 Difference]: Finished difference Result 116 states and 186 transitions. [2024-12-02 09:08:04,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:08:04,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-12-02 09:08:04,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:08:04,938 INFO L225 Difference]: With dead ends: 116 [2024-12-02 09:08:04,938 INFO L226 Difference]: Without dead ends: 65 [2024-12-02 09:08:04,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 09:08:04,944 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 63 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:08:04,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 90 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:08:04,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-12-02 09:08:04,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 46. [2024-12-02 09:08:04,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 45 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:08:04,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2024-12-02 09:08:04,976 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 9 [2024-12-02 09:08:04,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:08:04,977 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2024-12-02 09:08:04,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:08:04,977 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2024-12-02 09:08:04,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-02 09:08:04,978 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:08:04,978 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:08:04,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 09:08:05,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:08:05,179 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:08:05,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:08:05,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1242712599, now seen corresponding path program 1 times [2024-12-02 09:08:05,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:08:05,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [661288233] [2024-12-02 09:08:05,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:08:05,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:08:05,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:08:05,183 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:08:05,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 09:08:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:08:05,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 09:08:05,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:08:05,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:08:05,342 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:08:05,342 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:08:05,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661288233] [2024-12-02 09:08:05,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661288233] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:08:05,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:08:05,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:08:05,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093585921] [2024-12-02 09:08:05,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:08:05,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:08:05,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:08:05,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:08:05,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:08:05,345 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:08:05,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:08:05,440 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2024-12-02 09:08:05,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:08:05,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-12-02 09:08:05,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:08:05,442 INFO L225 Difference]: With dead ends: 48 [2024-12-02 09:08:05,442 INFO L226 Difference]: Without dead ends: 46 [2024-12-02 09:08:05,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:08:05,443 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 5 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:08:05,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 80 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:08:05,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-12-02 09:08:05,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2024-12-02 09:08:05,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 43 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:08:05,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2024-12-02 09:08:05,452 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 10 [2024-12-02 09:08:05,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:08:05,452 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2024-12-02 09:08:05,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:08:05,452 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2024-12-02 09:08:05,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-02 09:08:05,453 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:08:05,453 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:08:05,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 09:08:05,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:08:05,654 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:08:05,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:08:05,654 INFO L85 PathProgramCache]: Analyzing trace with hash -583461257, now seen corresponding path program 1 times [2024-12-02 09:08:05,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:08:05,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [914951294] [2024-12-02 09:08:05,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:08:05,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:08:05,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:08:05,657 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:08:05,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 09:08:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:08:05,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 09:08:05,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:08:05,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:08:05,823 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:08:05,823 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:08:05,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914951294] [2024-12-02 09:08:05,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914951294] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:08:05,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:08:05,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:08:05,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301075057] [2024-12-02 09:08:05,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:08:05,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:08:05,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:08:05,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:08:05,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:08:05,825 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:08:05,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:08:05,890 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2024-12-02 09:08:05,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:08:05,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-12-02 09:08:05,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:08:05,892 INFO L225 Difference]: With dead ends: 44 [2024-12-02 09:08:05,892 INFO L226 Difference]: Without dead ends: 42 [2024-12-02 09:08:05,892 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:08:05,893 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 19 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:08:05,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 54 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:08:05,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-12-02 09:08:05,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-12-02 09:08:05,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.25) internal successors, (50), 41 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:08:05,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2024-12-02 09:08:05,900 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 11 [2024-12-02 09:08:05,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:08:05,901 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2024-12-02 09:08:05,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:08:05,901 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2024-12-02 09:08:05,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-02 09:08:05,902 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:08:05,902 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:08:05,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 09:08:06,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:08:06,103 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:08:06,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:08:06,103 INFO L85 PathProgramCache]: Analyzing trace with hash 243137401, now seen corresponding path program 1 times [2024-12-02 09:08:06,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:08:06,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [370110371] [2024-12-02 09:08:06,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:08:06,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:08:06,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:08:06,106 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:08:06,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 09:08:06,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:08:06,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 09:08:06,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:08:06,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2024-12-02 09:08:06,416 INFO L349 Elim1Store]: treesize reduction 62, result has 7.5 percent of original size [2024-12-02 09:08:06,416 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 96 treesize of output 73 [2024-12-02 09:08:06,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2024-12-02 09:08:06,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:08:06,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:08:06,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2024-12-02 09:08:06,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:08:06,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-12-02 09:08:06,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:08:06,808 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:08:06,808 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:08:06,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370110371] [2024-12-02 09:08:06,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370110371] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:08:06,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:08:06,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 09:08:06,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410986935] [2024-12-02 09:08:06,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:08:06,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:08:06,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:08:06,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:08:06,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:08:06,810 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:08:09,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:08:09,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:08:09,714 INFO L93 Difference]: Finished difference Result 69 states and 82 transitions. [2024-12-02 09:08:09,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 09:08:09,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-12-02 09:08:09,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:08:09,716 INFO L225 Difference]: With dead ends: 69 [2024-12-02 09:08:09,717 INFO L226 Difference]: Without dead ends: 56 [2024-12-02 09:08:09,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:08:09,718 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 13 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-12-02 09:08:09,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 116 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-12-02 09:08:09,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-12-02 09:08:09,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 48. [2024-12-02 09:08:09,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 46 states have (on average 1.2391304347826086) internal successors, (57), 47 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:08:09,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2024-12-02 09:08:09,728 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 12 [2024-12-02 09:08:09,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:08:09,728 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2024-12-02 09:08:09,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:08:09,729 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2024-12-02 09:08:09,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-02 09:08:09,729 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:08:09,729 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:08:09,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 09:08:09,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:08:09,930 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:08:09,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:08:09,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1880189873, now seen corresponding path program 1 times [2024-12-02 09:08:09,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:08:09,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [647197801] [2024-12-02 09:08:09,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:08:09,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:08:09,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:08:09,934 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:08:09,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 09:08:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:08:10,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 09:08:10,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:08:10,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 30 [2024-12-02 09:08:10,181 INFO L349 Elim1Store]: treesize reduction 62, result has 7.5 percent of original size [2024-12-02 09:08:10,181 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 92 treesize of output 69 [2024-12-02 09:08:10,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:08:10,275 INFO L349 Elim1Store]: treesize reduction 45, result has 13.5 percent of original size [2024-12-02 09:08:10,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 37 [2024-12-02 09:08:10,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:08:10,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 34 [2024-12-02 09:08:10,532 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2024-12-02 09:08:10,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2024-12-02 09:08:10,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 31 [2024-12-02 09:08:10,878 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:08:10,878 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 33 treesize of output 15 [2024-12-02 09:08:10,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:08:10,922 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:08:11,048 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_331 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (_ bv0 32) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_331) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)))) is different from false [2024-12-02 09:08:15,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:08:15,221 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:08:15,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647197801] [2024-12-02 09:08:15,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647197801] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:08:15,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 09:08:15,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-12-02 09:08:15,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933115139] [2024-12-02 09:08:15,222 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 09:08:15,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 09:08:15,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:08:15,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 09:08:15,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=65, Unknown=3, NotChecked=16, Total=110 [2024-12-02 09:08:15,223 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:08:17,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:08:19,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:08:20,663 WARN L851 $PredicateComparison]: unable to prove that (and (not (= (_ bv0 32) (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|))) (forall ((|v_ULTIMATE.start_main_~item~0#1.base_26| (_ BitVec 32)) (v_ArrVal_331 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~item~0#1.base_26|))) (not (= (select (select (store |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_main_~item~0#1.base_26| v_ArrVal_331) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|) (_ bv0 32)))))) is different from false [2024-12-02 09:08:20,862 WARN L851 $PredicateComparison]: unable to prove that (and (not (= (_ bv0 32) (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|))) (forall ((v_ArrVal_331 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (_ bv0 32) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_331) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|))))) is different from false [2024-12-02 09:08:21,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:08:21,282 INFO L93 Difference]: Finished difference Result 138 states and 167 transitions. [2024-12-02 09:08:21,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 09:08:21,283 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-12-02 09:08:21,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:08:21,284 INFO L225 Difference]: With dead ends: 138 [2024-12-02 09:08:21,284 INFO L226 Difference]: Without dead ends: 136 [2024-12-02 09:08:21,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=66, Invalid=150, Unknown=6, NotChecked=84, Total=306 [2024-12-02 09:08:21,285 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 150 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 15 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 159 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-12-02 09:08:21,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 233 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 204 Invalid, 7 Unknown, 159 Unchecked, 5.7s Time] [2024-12-02 09:08:21,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-12-02 09:08:21,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 74. [2024-12-02 09:08:21,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 72 states have (on average 1.25) internal successors, (90), 73 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:08:21,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 90 transitions. [2024-12-02 09:08:21,302 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 90 transitions. Word has length 18 [2024-12-02 09:08:21,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:08:21,302 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 90 transitions. [2024-12-02 09:08:21,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:08:21,303 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 90 transitions. [2024-12-02 09:08:21,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-02 09:08:21,303 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:08:21,303 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:08:21,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 09:08:21,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:08:21,504 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:08:21,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:08:21,505 INFO L85 PathProgramCache]: Analyzing trace with hash 2005956332, now seen corresponding path program 1 times [2024-12-02 09:08:21,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:08:21,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1984598370] [2024-12-02 09:08:21,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:08:21,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:08:21,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:08:21,507 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:08:21,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 09:08:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:08:21,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 09:08:21,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:08:21,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2024-12-02 09:08:21,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2024-12-02 09:08:21,799 INFO L349 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2024-12-02 09:08:21,800 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 69 [2024-12-02 09:08:21,924 INFO L349 Elim1Store]: treesize reduction 102, result has 32.5 percent of original size [2024-12-02 09:08:21,924 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 2 case distinctions, treesize of input 45 treesize of output 54 [2024-12-02 09:08:21,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 09:08:21,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 09:08:22,014 INFO L349 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2024-12-02 09:08:22,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 59 treesize of output 43 [2024-12-02 09:08:22,466 INFO L349 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2024-12-02 09:08:22,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 53 [2024-12-02 09:08:22,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:08:22,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-12-02 09:08:23,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:08:23,141 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:08:23,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:08:23,641 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:08:23,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984598370] [2024-12-02 09:08:23,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984598370] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:08:23,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 09:08:23,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-12-02 09:08:23,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355812674] [2024-12-02 09:08:23,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 09:08:23,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 09:08:23,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:08:23,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 09:08:23,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-12-02 09:08:23,642 INFO L87 Difference]: Start difference. First operand 74 states and 90 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:08:25,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 09:08:28,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:08:31,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:08:34,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:08:35,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:08:35,866 INFO L93 Difference]: Finished difference Result 98 states and 116 transitions. [2024-12-02 09:08:35,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 09:08:35,867 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-12-02 09:08:35,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:08:35,868 INFO L225 Difference]: With dead ends: 98 [2024-12-02 09:08:35,868 INFO L226 Difference]: Without dead ends: 85 [2024-12-02 09:08:35,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-12-02 09:08:35,869 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 27 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2024-12-02 09:08:35,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 199 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2024-12-02 09:08:35,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-12-02 09:08:35,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 80. [2024-12-02 09:08:35,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 78 states have (on average 1.2307692307692308) internal successors, (96), 79 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:08:35,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 96 transitions. [2024-12-02 09:08:35,883 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 96 transitions. Word has length 18 [2024-12-02 09:08:35,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:08:35,883 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 96 transitions. [2024-12-02 09:08:35,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:08:35,883 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 96 transitions. [2024-12-02 09:08:35,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-02 09:08:35,884 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:08:35,884 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:08:35,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 09:08:36,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:08:36,085 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:08:36,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:08:36,085 INFO L85 PathProgramCache]: Analyzing trace with hash 2002948098, now seen corresponding path program 2 times [2024-12-02 09:08:36,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:08:36,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2043722844] [2024-12-02 09:08:36,086 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 09:08:36,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:08:36,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:08:36,088 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:08:36,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 09:08:50,337 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 09:08:50,337 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:08:50,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-02 09:08:50,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:08:50,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 35 [2024-12-02 09:08:50,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:08:50,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:08:50,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2024-12-02 09:08:50,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:08:50,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-12-02 09:08:50,474 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 11 treesize of output 7 [2024-12-02 09:08:50,531 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-12-02 09:08:50,531 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 1 case distinctions, treesize of input 16 treesize of output 15 [2024-12-02 09:08:50,559 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 11 treesize of output 7 [2024-12-02 09:08:50,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-12-02 09:08:50,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 09:08:50,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 09:08:51,351 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 7 treesize of output 3 [2024-12-02 09:08:51,359 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 7 treesize of output 3 [2024-12-02 09:08:51,755 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:08:51,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 61 [2024-12-02 09:08:52,043 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:08:52,043 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:08:53,459 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 310 treesize of output 302 [2024-12-02 09:08:53,515 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:08:53,515 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 241 treesize of output 239 [2024-12-02 09:08:53,541 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:08:53,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 167 treesize of output 152 [2024-12-02 09:08:53,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 12 [2024-12-02 09:08:53,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 166 treesize of output 162 [2024-12-02 09:08:53,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 12 [2024-12-02 09:08:54,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 12 [2024-12-02 09:08:54,046 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 09:08:54,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2024-12-02 09:08:54,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2024-12-02 09:08:54,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 12 [2024-12-02 09:08:54,230 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 09:08:54,230 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 09:08:54,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2024-12-02 09:08:54,254 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 09:08:54,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 44 [2024-12-02 09:08:54,309 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 09:08:54,310 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 09:08:54,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 12 [2024-12-02 09:08:54,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 12 [2024-12-02 09:08:54,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 180 treesize of output 174 [2024-12-02 09:09:01,973 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse9 (= |c_ULTIMATE.start_main_~bucket~0#1.offset| (_ bv0 32))) (.cse8 (= |c_ULTIMATE.start_main_~bucket~0#1.offset| (_ bv4 32)))) (let ((.cse2 (not .cse8)) (.cse14 (not .cse9)) (.cse5 (bvadd |c_ULTIMATE.start_main_~bucket~0#1.offset| (_ bv8 32)))) (and (or (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_43 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse0 (select .cse1 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse0 (bvadd (_ bv8 32) v_arrayElimCell_43))) (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (= (select (select .cse1 |c_ULTIMATE.start_main_~bucket~0#1.base|) (_ bv12 32)) (_ bv0 32)) (= (_ bv0 32) (select .cse0 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (not (= (_ bv0 32) (select (select .cse1 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|))))) .cse2) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse4 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (or (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_43 (_ BitVec 32)) (v_arrayElimCell_42 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (let ((.cse3 (select .cse4 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse3 (bvadd (_ bv8 32) v_arrayElimCell_43))) (= (_ bv0 32) (select .cse3 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (= (_ bv0 32) (select .cse3 (_ bv8 32))) (= (_ bv0 32) (select .cse3 (bvadd (_ bv8 32) v_arrayElimCell_42)))))) (not (= (_ bv0 32) (select (select .cse4 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse4 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5))))))) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse6 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (or (not (= (_ bv0 32) (select (select .cse6 (_ bv0 32)) (_ bv8 32)))) (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_arrayElimCell_52 (_ BitVec 32))) (let ((.cse7 (select .cse6 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse7 (bvadd (_ bv8 32) v_arrayElimCell_52))) (= (_ bv0 32) (select .cse7 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (= (_ bv0 32) (select .cse7 (_ bv8 32)))))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse6 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5))))))) (or .cse8 (and (or .cse9 (forall ((v_arrayElimCell_46 (_ BitVec 32)) (v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_45 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse11 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse10 (select .cse11 v_arrayElimCell_38))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (= (_ bv0 32) (select .cse10 (bvadd (_ bv8 32) v_arrayElimCell_46))) (not (= (_ bv0 32) (select (select .cse11 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select .cse10 (bvadd (_ bv8 32) v_arrayElimCell_45))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse11 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5))))))) (or (forall ((v_arrayElimCell_46 (_ BitVec 32)) (v_arrayElimCell_38 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse13 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse12 (select .cse13 v_arrayElimCell_38))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (= (_ bv0 32) (select .cse12 (bvadd (_ bv8 32) v_arrayElimCell_46))) (not (= (_ bv0 32) (select (select .cse13 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select (select .cse13 |c_ULTIMATE.start_main_~bucket~0#1.base|) (_ bv8 32))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select .cse12 (_ bv8 32))))))) .cse14) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse16 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (or (forall ((v_arrayElimCell_46 (_ BitVec 32)) (v_arrayElimCell_38 (_ BitVec 32))) (let ((.cse15 (select .cse16 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse15 (bvadd (_ bv8 32) v_arrayElimCell_46))) (forall ((v_arrayElimCell_45 (_ BitVec 32))) (= (_ bv0 32) (select .cse15 (bvadd (_ bv8 32) v_arrayElimCell_45)))) (= (_ bv0 32) (select .cse15 (_ bv8 32)))))) (not (= (_ bv0 32) (select (select .cse16 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse16 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5))))))))) (or .cse2 (forall ((v_DerPreprocessor_1 (_ BitVec 32)) (v_ArrVal_497 (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse17 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bucket~0#1.base| v_arrayElimArr_7))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (not (= (_ bv0 32) (select (select .cse17 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select (select .cse17 v_ArrVal_497) (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv12 32))))))) (or (and (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse18 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bucket~0#1.base| v_arrayElimArr_7))) (or (= (_ bv0 32) (select v_arrayElimArr_7 .cse5)) (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (not (= (_ bv0 32) (select (select .cse18 (_ bv0 32)) (_ bv8 32)))) (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_50 (_ BitVec 32))) (let ((.cse19 (select .cse18 v_arrayElimCell_38))) (or (= (select .cse19 (bvadd (_ bv8 32) v_arrayElimCell_50)) (_ bv0 32)) (forall ((v_DerPreprocessor_1 (_ BitVec 32))) (let ((.cse20 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (or (forall ((v_ArrVal_497 (_ BitVec 32))) (= (_ bv0 32) (select (select .cse18 v_ArrVal_497) .cse20))) (= (_ bv0 32) (select .cse19 .cse20))))))))))) (or (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_arrayElimCell_50 (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse22 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bucket~0#1.base| v_arrayElimArr_7))) (let ((.cse21 (select .cse22 v_arrayElimCell_38))) (or (= (_ bv0 32) (select v_arrayElimArr_7 .cse5)) (= (select .cse21 (bvadd (_ bv8 32) v_arrayElimCell_50)) (_ bv0 32)) (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (not (= (_ bv0 32) (select (select .cse22 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select .cse21 (bvadd v_DerPreprocessor_1 (_ bv8 32)))))))) .cse8)) .cse9) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse23 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (or (not (= (_ bv0 32) (select (select .cse23 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse23 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5)) (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_44 (_ BitVec 32))) (= (_ bv0 32) (select (select .cse23 v_arrayElimCell_38) (bvadd (_ bv8 32) v_arrayElimCell_44))))))))) (or (and (or .cse9 (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_49 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse25 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse24 (select .cse25 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse24 (bvadd (_ bv8 32) v_arrayElimCell_49))) (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (not (= (_ bv0 32) (select (select .cse25 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select (select .cse25 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5)) (= (_ bv0 32) (select .cse24 (_ bv8 32)))))))) (or .cse9 (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_49 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse26 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (or (= (_ bv0 32) (select (select .cse26 v_arrayElimCell_38) (bvadd (_ bv8 32) v_arrayElimCell_49))) (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (not (= (_ bv0 32) (select (select .cse26 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select (select .cse26 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5)))))) (or (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_48 (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse27 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bucket~0#1.base| v_arrayElimArr_7))) (or (= (_ bv0 32) (select v_arrayElimArr_7 .cse5)) (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (not (= (_ bv0 32) (select (select .cse27 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select (select .cse27 v_arrayElimCell_38) (bvadd (_ bv8 32) v_arrayElimCell_48)))))) .cse9) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_49 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse29 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse28 (select .cse29 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse28 (bvadd (_ bv8 32) v_arrayElimCell_49))) (not (= (_ bv0 32) (select (select .cse29 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse29 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5)) (= (_ bv0 32) (select .cse28 (_ bv8 32)))))))))) .cse8) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse30 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (or (not (= (_ bv0 32) (select (select .cse30 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (forall ((v_arrayElimCell_47 (_ BitVec 32)) (v_arrayElimCell_38 (_ BitVec 32))) (= (_ bv0 32) (select (select .cse30 v_arrayElimCell_38) (bvadd (_ bv8 32) v_arrayElimCell_47)))) (= (_ bv0 32) (select (select .cse30 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5))))))) (or (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_arrayElimCell_52 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_ArrVal_497 (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse33 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse31 (select .cse33 v_arrayElimCell_38)) (.cse32 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (= (_ bv0 32) (select .cse31 (bvadd (_ bv8 32) v_arrayElimCell_52))) (= (_ bv0 32) (select .cse31 .cse32)) (not (= (_ bv0 32) (select (select .cse33 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select (select .cse33 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5)) (= (_ bv0 32) (select .cse31 (_ bv8 32))) (= (_ bv0 32) (select (select .cse33 v_ArrVal_497) .cse32)))))) .cse9) (or (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_43 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse35 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse34 (select .cse35 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse34 (bvadd (_ bv8 32) v_arrayElimCell_43))) (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (= (_ bv0 32) (select .cse34 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (not (= (_ bv0 32) (select (select .cse35 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select (select .cse35 |c_ULTIMATE.start_main_~bucket~0#1.base|) (_ bv8 32))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select .cse34 (_ bv8 32))))))) .cse14) (or .cse9 (and (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse37 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (or (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_52 (_ BitVec 32))) (let ((.cse36 (select .cse37 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse36 (bvadd (_ bv8 32) v_arrayElimCell_52))) (forall ((v_DerPreprocessor_1 (_ BitVec 32))) (let ((.cse38 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (or (forall ((v_ArrVal_497 (_ BitVec 32))) (= (_ bv0 32) (select (select .cse37 v_ArrVal_497) .cse38))) (= (_ bv0 32) (select .cse36 .cse38)))))))) (not (= (_ bv0 32) (select (select .cse37 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select (select .cse37 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5))))))) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse40 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (or (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_arrayElimCell_52 (_ BitVec 32))) (let ((.cse39 (select .cse40 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse39 (bvadd (_ bv8 32) v_arrayElimCell_52))) (= (_ bv0 32) (select .cse39 (bvadd v_DerPreprocessor_1 (_ bv8 32))))))) (not (= (_ bv0 32) (select (select .cse40 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse40 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5))))))) (or .cse8 (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_arrayElimCell_52 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse42 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse41 (select .cse42 v_arrayElimCell_38))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (= (_ bv0 32) (select .cse41 (bvadd (_ bv8 32) v_arrayElimCell_52))) (= (_ bv0 32) (select .cse41 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (not (= (_ bv0 32) (select (select .cse42 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select (select .cse42 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5))))))))) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_arrayElimCell_52 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_ArrVal_497 (_ BitVec 32))) (let ((.cse45 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse43 (select .cse45 v_arrayElimCell_38)) (.cse44 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (or (= (_ bv0 32) (select .cse43 (bvadd (_ bv8 32) v_arrayElimCell_52))) (= (_ bv0 32) (select .cse43 .cse44)) (not (= (_ bv0 32) (select (select .cse45 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse45 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5)) (= (_ bv0 32) (select .cse43 (_ bv8 32))) (= (_ bv0 32) (select (select .cse45 v_ArrVal_497) .cse44)))))))) (or (and (or .cse9 (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_arrayElimCell_52 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse47 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse46 (select .cse47 v_arrayElimCell_38))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (= (_ bv0 32) (select .cse46 (bvadd (_ bv8 32) v_arrayElimCell_52))) (= (_ bv0 32) (select .cse46 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (not (= (_ bv0 32) (select (select .cse47 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select (select .cse47 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5)) (= (_ bv0 32) (select .cse46 (_ bv8 32)))))))) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_arrayElimCell_52 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse49 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse48 (select .cse49 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse48 (bvadd (_ bv8 32) v_arrayElimCell_52))) (= (_ bv0 32) (select .cse48 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (not (= (_ bv0 32) (select (select .cse49 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse49 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5)) (= (_ bv0 32) (select .cse48 (_ bv8 32)))))))))) .cse8) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse50 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (or (not (= (_ bv0 32) (select (select .cse50 (_ bv0 32)) (_ bv8 32)))) (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_arrayElimCell_51 (_ BitVec 32))) (let ((.cse51 (select .cse50 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse51 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (= (_ bv0 32) (select .cse51 (bvadd (_ bv8 32) v_arrayElimCell_51)))))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse50 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5))))))) (or .cse9 (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_43 (_ BitVec 32)) (v_arrayElimCell_42 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse53 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse52 (select .cse53 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse52 (bvadd (_ bv8 32) v_arrayElimCell_43))) (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (= (_ bv0 32) (select .cse52 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (not (= (_ bv0 32) (select (select .cse53 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse53 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5)) (= (_ bv0 32) (select .cse52 (bvadd (_ bv8 32) v_arrayElimCell_42)))))))) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse54 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (or (not (= (_ bv0 32) (select (select .cse54 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_arrayElimCell_41 (_ BitVec 32))) (let ((.cse55 (select .cse54 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse55 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (= (_ bv0 32) (select .cse55 (bvadd (_ bv8 32) v_arrayElimCell_41)))))) (= (_ bv0 32) (select (select .cse54 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5)))))))))) is different from true [2024-12-02 09:09:05,774 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:09:05,775 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:09:05,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043722844] [2024-12-02 09:09:05,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043722844] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:09:05,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 09:09:05,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2024-12-02 09:09:05,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026254013] [2024-12-02 09:09:05,775 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 09:09:05,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 09:09:05,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:09:05,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 09:09:05,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=385, Unknown=1, NotChecked=40, Total=506 [2024-12-02 09:09:05,777 INFO L87 Difference]: Start difference. First operand 80 states and 96 transitions. Second operand has 23 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 23 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:09:08,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:09:10,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:09:13,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:09:17,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:09:20,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:09:23,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:09:26,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:09:28,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:09:30,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:09:33,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:09:36,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:09:40,962 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse9 (= |c_ULTIMATE.start_main_~bucket~0#1.offset| (_ bv0 32))) (.cse8 (= |c_ULTIMATE.start_main_~bucket~0#1.offset| (_ bv4 32)))) (let ((.cse2 (not .cse8)) (.cse14 (not .cse9)) (.cse5 (bvadd |c_ULTIMATE.start_main_~bucket~0#1.offset| (_ bv8 32)))) (and (or (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_43 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse0 (select .cse1 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse0 (bvadd (_ bv8 32) v_arrayElimCell_43))) (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (= (select (select .cse1 |c_ULTIMATE.start_main_~bucket~0#1.base|) (_ bv12 32)) (_ bv0 32)) (= (_ bv0 32) (select .cse0 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (not (= (_ bv0 32) (select (select .cse1 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|))))) .cse2) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse4 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (or (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_43 (_ BitVec 32)) (v_arrayElimCell_42 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (let ((.cse3 (select .cse4 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse3 (bvadd (_ bv8 32) v_arrayElimCell_43))) (= (_ bv0 32) (select .cse3 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (= (_ bv0 32) (select .cse3 (_ bv8 32))) (= (_ bv0 32) (select .cse3 (bvadd (_ bv8 32) v_arrayElimCell_42)))))) (not (= (_ bv0 32) (select (select .cse4 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse4 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5))))))) (= (_ bv0 32) (select (select |c_#memory_int#1| |c_ULTIMATE.start_main_~bucket~0#1.base|) (_ bv8 32))) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse6 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (or (not (= (_ bv0 32) (select (select .cse6 (_ bv0 32)) (_ bv8 32)))) (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_arrayElimCell_52 (_ BitVec 32))) (let ((.cse7 (select .cse6 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse7 (bvadd (_ bv8 32) v_arrayElimCell_52))) (= (_ bv0 32) (select .cse7 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (= (_ bv0 32) (select .cse7 (_ bv8 32)))))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse6 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5))))))) (or .cse8 (and (or .cse9 (forall ((v_arrayElimCell_46 (_ BitVec 32)) (v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_45 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse11 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse10 (select .cse11 v_arrayElimCell_38))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (= (_ bv0 32) (select .cse10 (bvadd (_ bv8 32) v_arrayElimCell_46))) (not (= (_ bv0 32) (select (select .cse11 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select .cse10 (bvadd (_ bv8 32) v_arrayElimCell_45))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse11 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5))))))) (or (forall ((v_arrayElimCell_46 (_ BitVec 32)) (v_arrayElimCell_38 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse13 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse12 (select .cse13 v_arrayElimCell_38))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (= (_ bv0 32) (select .cse12 (bvadd (_ bv8 32) v_arrayElimCell_46))) (not (= (_ bv0 32) (select (select .cse13 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select (select .cse13 |c_ULTIMATE.start_main_~bucket~0#1.base|) (_ bv8 32))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select .cse12 (_ bv8 32))))))) .cse14) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse16 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (or (forall ((v_arrayElimCell_46 (_ BitVec 32)) (v_arrayElimCell_38 (_ BitVec 32))) (let ((.cse15 (select .cse16 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse15 (bvadd (_ bv8 32) v_arrayElimCell_46))) (forall ((v_arrayElimCell_45 (_ BitVec 32))) (= (_ bv0 32) (select .cse15 (bvadd (_ bv8 32) v_arrayElimCell_45)))) (= (_ bv0 32) (select .cse15 (_ bv8 32)))))) (not (= (_ bv0 32) (select (select .cse16 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse16 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5))))))))) (or .cse2 (forall ((v_DerPreprocessor_1 (_ BitVec 32)) (v_ArrVal_497 (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse17 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bucket~0#1.base| v_arrayElimArr_7))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (not (= (_ bv0 32) (select (select .cse17 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select (select .cse17 v_ArrVal_497) (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv12 32))))))) (or (and (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse18 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bucket~0#1.base| v_arrayElimArr_7))) (or (= (_ bv0 32) (select v_arrayElimArr_7 .cse5)) (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (not (= (_ bv0 32) (select (select .cse18 (_ bv0 32)) (_ bv8 32)))) (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_50 (_ BitVec 32))) (let ((.cse19 (select .cse18 v_arrayElimCell_38))) (or (= (select .cse19 (bvadd (_ bv8 32) v_arrayElimCell_50)) (_ bv0 32)) (forall ((v_DerPreprocessor_1 (_ BitVec 32))) (let ((.cse20 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (or (forall ((v_ArrVal_497 (_ BitVec 32))) (= (_ bv0 32) (select (select .cse18 v_ArrVal_497) .cse20))) (= (_ bv0 32) (select .cse19 .cse20))))))))))) (or (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_arrayElimCell_50 (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse22 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bucket~0#1.base| v_arrayElimArr_7))) (let ((.cse21 (select .cse22 v_arrayElimCell_38))) (or (= (_ bv0 32) (select v_arrayElimArr_7 .cse5)) (= (select .cse21 (bvadd (_ bv8 32) v_arrayElimCell_50)) (_ bv0 32)) (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (not (= (_ bv0 32) (select (select .cse22 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select .cse21 (bvadd v_DerPreprocessor_1 (_ bv8 32)))))))) .cse8)) .cse9) .cse9 (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse23 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (or (not (= (_ bv0 32) (select (select .cse23 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse23 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5)) (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_44 (_ BitVec 32))) (= (_ bv0 32) (select (select .cse23 v_arrayElimCell_38) (bvadd (_ bv8 32) v_arrayElimCell_44))))))))) (or (and (or .cse9 (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_49 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse25 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse24 (select .cse25 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse24 (bvadd (_ bv8 32) v_arrayElimCell_49))) (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (not (= (_ bv0 32) (select (select .cse25 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select (select .cse25 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5)) (= (_ bv0 32) (select .cse24 (_ bv8 32)))))))) (or .cse9 (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_49 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse26 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (or (= (_ bv0 32) (select (select .cse26 v_arrayElimCell_38) (bvadd (_ bv8 32) v_arrayElimCell_49))) (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (not (= (_ bv0 32) (select (select .cse26 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select (select .cse26 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5)))))) (or (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_48 (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse27 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bucket~0#1.base| v_arrayElimArr_7))) (or (= (_ bv0 32) (select v_arrayElimArr_7 .cse5)) (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (not (= (_ bv0 32) (select (select .cse27 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select (select .cse27 v_arrayElimCell_38) (bvadd (_ bv8 32) v_arrayElimCell_48)))))) .cse9) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_49 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse29 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse28 (select .cse29 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse28 (bvadd (_ bv8 32) v_arrayElimCell_49))) (not (= (_ bv0 32) (select (select .cse29 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse29 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5)) (= (_ bv0 32) (select .cse28 (_ bv8 32)))))))))) .cse8) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse30 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (or (not (= (_ bv0 32) (select (select .cse30 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (forall ((v_arrayElimCell_47 (_ BitVec 32)) (v_arrayElimCell_38 (_ BitVec 32))) (= (_ bv0 32) (select (select .cse30 v_arrayElimCell_38) (bvadd (_ bv8 32) v_arrayElimCell_47)))) (= (_ bv0 32) (select (select .cse30 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5))))))) (or (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_arrayElimCell_52 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_ArrVal_497 (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse33 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse31 (select .cse33 v_arrayElimCell_38)) (.cse32 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (= (_ bv0 32) (select .cse31 (bvadd (_ bv8 32) v_arrayElimCell_52))) (= (_ bv0 32) (select .cse31 .cse32)) (not (= (_ bv0 32) (select (select .cse33 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select (select .cse33 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5)) (= (_ bv0 32) (select .cse31 (_ bv8 32))) (= (_ bv0 32) (select (select .cse33 v_ArrVal_497) .cse32)))))) .cse9) (or (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_43 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse35 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse34 (select .cse35 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse34 (bvadd (_ bv8 32) v_arrayElimCell_43))) (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (= (_ bv0 32) (select .cse34 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (not (= (_ bv0 32) (select (select .cse35 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select (select .cse35 |c_ULTIMATE.start_main_~bucket~0#1.base|) (_ bv8 32))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select .cse34 (_ bv8 32))))))) .cse14) (or .cse9 (and (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse37 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (or (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_52 (_ BitVec 32))) (let ((.cse36 (select .cse37 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse36 (bvadd (_ bv8 32) v_arrayElimCell_52))) (forall ((v_DerPreprocessor_1 (_ BitVec 32))) (let ((.cse38 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (or (forall ((v_ArrVal_497 (_ BitVec 32))) (= (_ bv0 32) (select (select .cse37 v_ArrVal_497) .cse38))) (= (_ bv0 32) (select .cse36 .cse38)))))))) (not (= (_ bv0 32) (select (select .cse37 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select (select .cse37 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5))))))) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse40 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (or (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_arrayElimCell_52 (_ BitVec 32))) (let ((.cse39 (select .cse40 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse39 (bvadd (_ bv8 32) v_arrayElimCell_52))) (= (_ bv0 32) (select .cse39 (bvadd v_DerPreprocessor_1 (_ bv8 32))))))) (not (= (_ bv0 32) (select (select .cse40 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse40 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5))))))) (or .cse8 (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_arrayElimCell_52 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse42 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse41 (select .cse42 v_arrayElimCell_38))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (= (_ bv0 32) (select .cse41 (bvadd (_ bv8 32) v_arrayElimCell_52))) (= (_ bv0 32) (select .cse41 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (not (= (_ bv0 32) (select (select .cse42 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select (select .cse42 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5))))))))) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_arrayElimCell_52 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_ArrVal_497 (_ BitVec 32))) (let ((.cse45 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse43 (select .cse45 v_arrayElimCell_38)) (.cse44 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (or (= (_ bv0 32) (select .cse43 (bvadd (_ bv8 32) v_arrayElimCell_52))) (= (_ bv0 32) (select .cse43 .cse44)) (not (= (_ bv0 32) (select (select .cse45 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse45 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5)) (= (_ bv0 32) (select .cse43 (_ bv8 32))) (= (_ bv0 32) (select (select .cse45 v_ArrVal_497) .cse44)))))))) (or (and (or .cse9 (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_arrayElimCell_52 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse47 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse46 (select .cse47 v_arrayElimCell_38))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (= (_ bv0 32) (select .cse46 (bvadd (_ bv8 32) v_arrayElimCell_52))) (= (_ bv0 32) (select .cse46 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (not (= (_ bv0 32) (select (select .cse47 (_ bv0 32)) (_ bv8 32)))) (= (_ bv0 32) (select (select .cse47 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5)) (= (_ bv0 32) (select .cse46 (_ bv8 32)))))))) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_arrayElimCell_52 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse49 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse48 (select .cse49 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse48 (bvadd (_ bv8 32) v_arrayElimCell_52))) (= (_ bv0 32) (select .cse48 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (not (= (_ bv0 32) (select (select .cse49 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse49 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5)) (= (_ bv0 32) (select .cse48 (_ bv8 32)))))))))) .cse8) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse50 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (or (not (= (_ bv0 32) (select (select .cse50 (_ bv0 32)) (_ bv8 32)))) (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_arrayElimCell_51 (_ BitVec 32))) (let ((.cse51 (select .cse50 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse51 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (= (_ bv0 32) (select .cse51 (bvadd (_ bv8 32) v_arrayElimCell_51)))))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse50 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5))))))) (or .cse9 (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_arrayElimCell_43 (_ BitVec 32)) (v_arrayElimCell_42 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32)) (v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse53 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (let ((.cse52 (select .cse53 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse52 (bvadd (_ bv8 32) v_arrayElimCell_43))) (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (= (_ bv0 32) (select .cse52 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (not (= (_ bv0 32) (select (select .cse53 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (= (_ bv0 32) (select (select .cse53 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5)) (= (_ bv0 32) (select .cse52 (bvadd (_ bv8 32) v_arrayElimCell_42)))))))) (forall ((v_arrayElimArr_7 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 32) (select v_arrayElimArr_7 (_ bv4 32)))) (forall ((|v_ULTIMATE.start_main_~item~0#1.base_32| (_ BitVec 32))) (let ((.cse54 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_32| v_arrayElimArr_7))) (or (not (= (_ bv0 32) (select (select .cse54 (_ bv0 32)) (_ bv8 32)))) (= |v_ULTIMATE.start_main_~item~0#1.base_32| |c_ULTIMATE.start_main_~bucket~0#1.base|) (forall ((v_arrayElimCell_38 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (v_arrayElimCell_41 (_ BitVec 32))) (let ((.cse55 (select .cse54 v_arrayElimCell_38))) (or (= (_ bv0 32) (select .cse55 (bvadd v_DerPreprocessor_1 (_ bv8 32)))) (= (_ bv0 32) (select .cse55 (bvadd (_ bv8 32) v_arrayElimCell_41)))))) (= (_ bv0 32) (select (select .cse54 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse5)))))))))) is different from true [2024-12-02 09:09:44,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:09:44,883 INFO L93 Difference]: Finished difference Result 172 states and 209 transitions. [2024-12-02 09:09:44,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 09:09:44,886 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 23 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-12-02 09:09:44,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:09:44,887 INFO L225 Difference]: With dead ends: 172 [2024-12-02 09:09:44,887 INFO L226 Difference]: Without dead ends: 131 [2024-12-02 09:09:44,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=264, Invalid=1002, Unknown=2, NotChecked=138, Total=1406 [2024-12-02 09:09:44,889 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 276 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 196 IncrementalHoareTripleChecker+Unchecked, 33.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:09:44,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 254 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 419 Invalid, 1 Unknown, 196 Unchecked, 33.3s Time] [2024-12-02 09:09:44,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-12-02 09:09:44,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 93. [2024-12-02 09:09:44,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 91 states have (on average 1.2197802197802199) internal successors, (111), 92 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:09:44,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 111 transitions. [2024-12-02 09:09:44,916 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 111 transitions. Word has length 21 [2024-12-02 09:09:44,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:09:44,916 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 111 transitions. [2024-12-02 09:09:44,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 23 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:09:44,917 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 111 transitions. [2024-12-02 09:09:44,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-02 09:09:44,917 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:09:44,917 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:09:44,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-02 09:09:45,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:09:45,118 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:09:45,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:09:45,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1765346369, now seen corresponding path program 1 times [2024-12-02 09:09:45,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:09:45,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [662385228] [2024-12-02 09:09:45,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:09:45,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:09:45,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:09:45,121 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:09:45,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 09:09:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:09:45,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 09:09:45,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:09:45,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 34 [2024-12-02 09:09:45,396 INFO L349 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2024-12-02 09:09:45,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 109 treesize of output 97 [2024-12-02 09:09:45,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 54 [2024-12-02 09:09:45,494 INFO L349 Elim1Store]: treesize reduction 60, result has 28.6 percent of original size [2024-12-02 09:09:45,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 30 [2024-12-02 09:09:45,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2024-12-02 09:09:45,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2024-12-02 09:09:45,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 1 [2024-12-02 09:09:45,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:09:45,644 INFO L349 Elim1Store]: treesize reduction 77, result has 8.3 percent of original size [2024-12-02 09:09:45,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 45 [2024-12-02 09:09:45,902 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-12-02 09:09:45,903 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 1 case distinctions, treesize of input 16 treesize of output 15 [2024-12-02 09:09:45,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2024-12-02 09:09:45,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:09:45,968 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-12-02 09:09:45,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 51 [2024-12-02 09:09:46,067 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2024-12-02 09:09:46,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2024-12-02 09:09:46,246 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-12-02 09:09:46,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 48 [2024-12-02 09:09:46,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-12-02 09:09:46,658 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 7 treesize of output 3 [2024-12-02 09:09:46,851 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-12-02 09:09:46,852 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 23 [2024-12-02 09:09:46,899 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:09:46,899 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:09:47,142 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_583 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_584 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (_ bv0 32) (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_583))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_584) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|))))) is different from false [2024-12-02 09:09:47,177 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_583 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_584 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~item~0#1.base_34| (_ BitVec 32))) (or (not (= (_ bv0 32) (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_main_~item~0#1.base_34| v_ArrVal_583))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_main_~item~0#1.base_34| v_ArrVal_584) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~item~0#1.base_34|))))) is different from false [2024-12-02 09:09:47,234 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:09:47,235 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:09:47,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662385228] [2024-12-02 09:09:47,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662385228] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:09:47,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 09:09:47,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-12-02 09:09:47,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211971842] [2024-12-02 09:09:47,235 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 09:09:47,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 09:09:47,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:09:47,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 09:09:47,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=86, Unknown=2, NotChecked=38, Total=156 [2024-12-02 09:09:47,236 INFO L87 Difference]: Start difference. First operand 93 states and 111 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:09:48,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:09:50,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:09:54,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 09:09:56,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:09:58,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:09:58,263 INFO L93 Difference]: Finished difference Result 145 states and 172 transitions. [2024-12-02 09:09:58,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 09:09:58,264 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-12-02 09:09:58,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:09:58,265 INFO L225 Difference]: With dead ends: 145 [2024-12-02 09:09:58,265 INFO L226 Difference]: Without dead ends: 143 [2024-12-02 09:09:58,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=80, Invalid=198, Unknown=2, NotChecked=62, Total=342 [2024-12-02 09:09:58,265 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 180 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 202 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:09:58,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 224 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 180 Invalid, 0 Unknown, 202 Unchecked, 10.1s Time] [2024-12-02 09:09:58,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-12-02 09:09:58,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 94. [2024-12-02 09:09:58,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 92 states have (on average 1.2173913043478262) internal successors, (112), 93 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:09:58,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 112 transitions. [2024-12-02 09:09:58,301 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 112 transitions. Word has length 22 [2024-12-02 09:09:58,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:09:58,301 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 112 transitions. [2024-12-02 09:09:58,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:09:58,301 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 112 transitions. [2024-12-02 09:09:58,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-02 09:09:58,302 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:09:58,302 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:09:58,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 09:09:58,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:09:58,503 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:09:58,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:09:58,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1392029665, now seen corresponding path program 2 times [2024-12-02 09:09:58,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:09:58,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [13585573] [2024-12-02 09:09:58,503 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 09:09:58,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:09:58,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:09:58,505 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:09:58,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 09:10:04,506 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 09:10:04,506 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:10:04,514 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-12-02 09:10:04,519 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:10:04,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2024-12-02 09:10:04,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2024-12-02 09:10:04,595 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-12-02 09:10:04,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 48 [2024-12-02 09:10:04,700 INFO L349 Elim1Store]: treesize reduction 70, result has 6.7 percent of original size [2024-12-02 09:10:04,700 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 112 treesize of output 97 [2024-12-02 09:10:04,711 INFO L349 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2024-12-02 09:10:04,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 59 treesize of output 43 [2024-12-02 09:10:04,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 treesize of output 8 [2024-12-02 09:10:04,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 09:10:04,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:10:04,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 50 [2024-12-02 09:10:04,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 09:10:04,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 23 [2024-12-02 09:10:05,471 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-12-02 09:10:05,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 92 treesize of output 67 [2024-12-02 09:10:05,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:10:05,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 67 [2024-12-02 09:10:06,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:10:06,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 67 [2024-12-02 09:10:06,504 INFO L349 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2024-12-02 09:10:06,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 106 treesize of output 80 [2024-12-02 09:10:07,597 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:10:07,597 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:10:13,915 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:10:13,915 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:10:13,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13585573] [2024-12-02 09:10:13,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13585573] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:10:13,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 09:10:13,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2024-12-02 09:10:13,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823837017] [2024-12-02 09:10:13,915 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 09:10:13,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 09:10:13,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:10:13,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 09:10:13,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=167, Unknown=1, NotChecked=0, Total=210 [2024-12-02 09:10:13,917 INFO L87 Difference]: Start difference. First operand 94 states and 112 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:10:17,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:10:21,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:10:25,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:10:28,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:10:32,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:10:36,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:10:40,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:10:40,850 INFO L93 Difference]: Finished difference Result 118 states and 138 transitions. [2024-12-02 09:10:40,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 09:10:40,851 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-12-02 09:10:40,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:10:40,851 INFO L225 Difference]: With dead ends: 118 [2024-12-02 09:10:40,851 INFO L226 Difference]: Without dead ends: 105 [2024-12-02 09:10:40,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=77, Invalid=302, Unknown=1, NotChecked=0, Total=380 [2024-12-02 09:10:40,852 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 34 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:10:40,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 220 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 208 Invalid, 3 Unknown, 0 Unchecked, 26.0s Time] [2024-12-02 09:10:40,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-12-02 09:10:40,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 100. [2024-12-02 09:10:40,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 98 states have (on average 1.2040816326530612) internal successors, (118), 99 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:10:40,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 118 transitions. [2024-12-02 09:10:40,880 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 118 transitions. Word has length 24 [2024-12-02 09:10:40,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:10:40,881 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 118 transitions. [2024-12-02 09:10:40,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:10:40,881 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 118 transitions. [2024-12-02 09:10:40,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 09:10:40,881 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:10:40,881 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:10:40,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 09:10:41,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:10:41,082 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:10:41,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:10:41,083 INFO L85 PathProgramCache]: Analyzing trace with hash -505911950, now seen corresponding path program 2 times [2024-12-02 09:10:41,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:10:41,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [565288086] [2024-12-02 09:10:41,083 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 09:10:41,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:10:41,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:10:41,085 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:10:41,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 09:10:57,779 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 09:10:57,780 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:10:57,787 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-12-02 09:10:57,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:10:57,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 34 [2024-12-02 09:10:57,980 INFO L349 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2024-12-02 09:10:57,980 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 146 treesize of output 128 [2024-12-02 09:10:58,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:10:58,072 INFO L349 Elim1Store]: treesize reduction 67, result has 9.5 percent of original size [2024-12-02 09:10:58,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 60 [2024-12-02 09:10:58,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 58 [2024-12-02 09:10:58,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 15 [2024-12-02 09:10:58,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 1 [2024-12-02 09:10:58,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 54 [2024-12-02 09:10:58,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 11 [2024-12-02 09:10:58,542 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-12-02 09:10:58,543 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 1 case distinctions, treesize of input 16 treesize of output 15 [2024-12-02 09:10:58,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2024-12-02 09:10:58,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:10:58,620 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-12-02 09:10:58,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 91 treesize of output 70 [2024-12-02 09:10:58,734 INFO L349 Elim1Store]: treesize reduction 18, result has 58.1 percent of original size [2024-12-02 09:10:58,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 43 [2024-12-02 09:10:58,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-12-02 09:10:59,077 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-12-02 09:10:59,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 64 [2024-12-02 09:10:59,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 09:10:59,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-12-02 09:11:00,258 INFO L349 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2024-12-02 09:11:00,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 84 treesize of output 37 [2024-12-02 09:11:00,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-12-02 09:11:00,428 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 09:11:00,429 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:11:01,014 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:11:01,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2024-12-02 09:11:01,049 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_772 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_773 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~item~0#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_main_~item~0#1.base_41| (_ BitVec 32)) (v_arrayElimArr_16 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~item~0#1.base_41|))) (not (= (_ bv1 32) (select v_arrayElimArr_16 (bvadd (_ bv4 32) |ULTIMATE.start_main_~item~0#1.offset|)))) (= (_ bv1 32) (select (select (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_41| v_arrayElimArr_16) (select (select (store |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_main_~item~0#1.base_41| v_ArrVal_773) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_main_~item~0#1.base_41| v_ArrVal_772) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)))))) is different from false [2024-12-02 09:11:01,138 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 09:11:01,138 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:11:01,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565288086] [2024-12-02 09:11:01,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565288086] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:11:01,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 09:11:01,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-12-02 09:11:01,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840830502] [2024-12-02 09:11:01,139 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 09:11:01,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 09:11:01,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:11:01,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 09:11:01,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=122, Unknown=6, NotChecked=22, Total=182 [2024-12-02 09:11:01,140 INFO L87 Difference]: Start difference. First operand 100 states and 118 transitions. Second operand has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:11:04,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:11:07,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:11:10,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:11:14,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:11:18,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 09:11:21,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:11:22,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:11:26,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:11:26,073 INFO L93 Difference]: Finished difference Result 182 states and 218 transitions. [2024-12-02 09:11:26,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 09:11:26,074 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-12-02 09:11:26,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:11:26,075 INFO L225 Difference]: With dead ends: 182 [2024-12-02 09:11:26,075 INFO L226 Difference]: Without dead ends: 141 [2024-12-02 09:11:26,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=81, Invalid=221, Unknown=8, NotChecked=32, Total=342 [2024-12-02 09:11:26,076 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 104 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 74 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2024-12-02 09:11:26,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 274 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 286 Invalid, 1 Unknown, 74 Unchecked, 23.6s Time] [2024-12-02 09:11:26,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-12-02 09:11:26,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 110. [2024-12-02 09:11:26,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 108 states have (on average 1.1944444444444444) internal successors, (129), 109 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:11:26,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 129 transitions. [2024-12-02 09:11:26,122 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 129 transitions. Word has length 25 [2024-12-02 09:11:26,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:11:26,122 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 129 transitions. [2024-12-02 09:11:26,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:11:26,122 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 129 transitions. [2024-12-02 09:11:26,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 09:11:26,123 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:11:26,123 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:11:26,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 09:11:26,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:11:26,323 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:11:26,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:11:26,324 INFO L85 PathProgramCache]: Analyzing trace with hash 2100111604, now seen corresponding path program 1 times [2024-12-02 09:11:26,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:11:26,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2117682319] [2024-12-02 09:11:26,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:11:26,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:11:26,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:11:26,326 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:11:26,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 09:11:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:11:26,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-12-02 09:11:26,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:11:26,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2024-12-02 09:11:26,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2024-12-02 09:11:26,748 INFO L349 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2024-12-02 09:11:26,748 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 93 treesize of output 83 [2024-12-02 09:11:26,881 INFO L349 Elim1Store]: treesize reduction 132, result has 12.6 percent of original size [2024-12-02 09:11:26,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 83 treesize of output 76 [2024-12-02 09:11:26,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 1 [2024-12-02 09:11:26,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:11:26,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 26 [2024-12-02 09:11:27,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 09:11:27,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 28 [2024-12-02 09:11:27,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 15 [2024-12-02 09:11:27,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:11:27,454 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-12-02 09:11:27,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 96 treesize of output 71 [2024-12-02 09:11:27,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:11:27,571 INFO L349 Elim1Store]: treesize reduction 18, result has 58.1 percent of original size [2024-12-02 09:11:27,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 43 [2024-12-02 09:11:27,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:11:27,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2024-12-02 09:11:27,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 19 [2024-12-02 09:11:27,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2024-12-02 09:11:27,989 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-12-02 09:11:27,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 65 [2024-12-02 09:11:28,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:11:28,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2024-12-02 09:11:29,776 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-02 09:11:29,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 93 treesize of output 44 [2024-12-02 09:11:29,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-12-02 09:11:29,964 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:11:29,964 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:11:30,506 WARN L851 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~item~0#1.offset| (_ BitVec 32)) (v_ArrVal_864 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_866 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv2 32) (let ((.cse3 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_864)) (.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_866))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|))) (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_main_~item~0#1.base| (store (select |c_#memory_int#1| |c_ULTIMATE.start_main_~item~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~item~0#1.offset|) (_ bv2 32))) (select (select .cse0 .cse1) .cse2)) (bvadd (select (select .cse3 .cse1) .cse2) (_ bv8 32))))))) is different from false [2024-12-02 09:11:30,562 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:11:30,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 63 [2024-12-02 09:11:30,603 WARN L851 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~item~0#1.offset| (_ BitVec 32)) (v_arrayElimArr_19 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~item~0#1.base_43| (_ BitVec 32)) (v_ArrVal_864 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_866 (Array (_ BitVec 32) (_ BitVec 32)))) (or (= (_ bv2 32) (let ((.cse3 (store |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_main_~item~0#1.base_43| v_ArrVal_864)) (.cse0 (store |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_main_~item~0#1.base_43| v_ArrVal_866))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|))) (select (select (store |c_#memory_int#1| |v_ULTIMATE.start_main_~item~0#1.base_43| v_arrayElimArr_19) (select (select .cse0 .cse1) .cse2)) (bvadd (_ bv8 32) (select (select .cse3 .cse1) .cse2)))))) (not (= (_ bv2 32) (select v_arrayElimArr_19 (bvadd (_ bv4 32) |ULTIMATE.start_main_~item~0#1.offset|)))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~item~0#1.base_43|))))) is different from false [2024-12-02 09:11:30,699 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:11:30,699 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:11:30,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117682319] [2024-12-02 09:11:30,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117682319] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:11:30,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 09:11:30,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-12-02 09:11:30,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378678368] [2024-12-02 09:11:30,700 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 09:11:30,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 09:11:30,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:11:30,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 09:11:30,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=153, Unknown=2, NotChecked=50, Total=240 [2024-12-02 09:11:30,701 INFO L87 Difference]: Start difference. First operand 110 states and 129 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:11:34,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:11:37,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:11:39,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:11:43,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:11:45,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:11:47,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:11:51,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:11:54,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:11:58,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:12:00,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:12:04,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:12:04,307 INFO L93 Difference]: Finished difference Result 179 states and 214 transitions. [2024-12-02 09:12:04,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 09:12:04,308 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-12-02 09:12:04,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:12:04,309 INFO L225 Difference]: With dead ends: 179 [2024-12-02 09:12:04,309 INFO L226 Difference]: Without dead ends: 139 [2024-12-02 09:12:04,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=89, Invalid=297, Unknown=2, NotChecked=74, Total=462 [2024-12-02 09:12:04,310 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 84 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 165 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2024-12-02 09:12:04,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 354 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 416 Invalid, 3 Unknown, 165 Unchecked, 31.7s Time] [2024-12-02 09:12:04,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-12-02 09:12:04,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 112. [2024-12-02 09:12:04,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 110 states have (on average 1.2) internal successors, (132), 111 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:12:04,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 132 transitions. [2024-12-02 09:12:04,349 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 132 transitions. Word has length 25 [2024-12-02 09:12:04,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:12:04,349 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 132 transitions. [2024-12-02 09:12:04,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:12:04,349 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 132 transitions. [2024-12-02 09:12:04,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-02 09:12:04,349 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:12:04,349 INFO L218 NwaCegarLoop]: trace histogram [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 09:12:04,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 09:12:04,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:12:04,550 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:12:04,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:12:04,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1003860032, now seen corresponding path program 1 times [2024-12-02 09:12:04,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:12:04,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1152040359] [2024-12-02 09:12:04,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:12:04,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:12:04,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:12:04,553 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:12:04,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 09:12:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:12:04,720 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 09:12:04,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:12:04,775 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-12-02 09:12:04,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 19 treesize of output 22 [2024-12-02 09:12:04,855 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2024-12-02 09:12:04,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 22 [2024-12-02 09:12:05,259 INFO L349 Elim1Store]: treesize reduction 6, result has 90.2 percent of original size [2024-12-02 09:12:05,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 85 [2024-12-02 09:12:05,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 09:12:06,221 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 11 treesize of output 7 [2024-12-02 09:12:06,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 09:12:06,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 09:12:06,521 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 7 treesize of output 3 [2024-12-02 09:12:06,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 09:12:06,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-12-02 09:12:06,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:12:06,841 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:12:07,475 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 108 treesize of output 102 [2024-12-02 09:12:07,498 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 170 treesize of output 158 [2024-12-02 09:12:08,039 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse5 (bvadd |c_ULTIMATE.start_main_~item~0#1.offset| (_ bv4 32))) (.cse10 (bvadd |c_ULTIMATE.start_main_~bucket~0#1.offset| (_ bv8 32))) (.cse9 (bvadd |c_ULTIMATE.start_main_~bucket~0#1.offset| (_ bv4 32))) (.cse11 (select |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base|)) (.cse12 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~bcki~0#1.offset|))) (let ((.cse1 (and (forall ((v_ArrVal_948 (_ BitVec 32)) (v_ArrVal_953 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse17 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base| (store .cse11 .cse12 v_ArrVal_948)))) (or (forall ((v_arrayElimCell_153 (_ BitVec 32)) (v_arrayElimCell_152 (_ BitVec 32))) (= (select (select (store .cse17 |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_953) v_arrayElimCell_152) (bvadd v_arrayElimCell_153 (_ bv4 32))) (select v_ArrVal_953 .cse10))) (not (= v_ArrVal_953 (store (select .cse17 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse9 (select v_ArrVal_953 .cse9))))))) (forall ((v_ArrVal_948 (_ BitVec 32)) (v_ArrVal_953 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse20 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base| (store .cse11 .cse12 v_ArrVal_948)))) (or (forall ((v_arrayElimCell_153 (_ BitVec 32)) (v_arrayElimCell_152 (_ BitVec 32))) (let ((.cse18 (select (store .cse20 |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_953) v_arrayElimCell_152)) (.cse19 (select v_ArrVal_953 .cse10))) (or (= (select .cse18 .cse5) .cse19) (= (select .cse18 (bvadd v_arrayElimCell_153 (_ bv4 32))) .cse19)))) (not (= v_ArrVal_953 (store (select .cse20 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse9 (select v_ArrVal_953 .cse9))))))))) (.cse3 (= |c_ULTIMATE.start_main_~bucket~0#1.offset| |c_ULTIMATE.start_main_~bcki~0#1.offset|)) (.cse2 (forall ((v_ArrVal_948 (_ BitVec 32)) (v_arrayElimCell_153 (_ BitVec 32)) (v_ArrVal_953 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_152 (_ BitVec 32))) (let ((.cse16 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base| (store .cse11 .cse12 v_ArrVal_948)))) (let ((.cse14 (store .cse16 |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_953)) (.cse15 (select v_ArrVal_953 .cse10))) (or (= (select (select .cse14 v_arrayElimCell_152) (bvadd v_arrayElimCell_153 (_ bv4 32))) .cse15) (= (select (select .cse14 |c_ULTIMATE.start_main_~item~0#1.base|) .cse5) .cse15) (not (= v_ArrVal_953 (store (select .cse16 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse9 (select v_ArrVal_953 .cse9))))))))) (.cse0 (= |c_ULTIMATE.start_main_~bcki~0#1.base| |c_ULTIMATE.start_main_~bucket~0#1.base|))) (and (or .cse0 .cse1) (or .cse2 .cse3) (forall ((v_ArrVal_948 (_ BitVec 32)) (v_ArrVal_953 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base| (store .cse11 .cse12 v_ArrVal_948)))) (let ((.cse7 (store .cse8 |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_953)) (.cse6 (select v_ArrVal_953 .cse10))) (or (forall ((v_arrayElimCell_153 (_ BitVec 32)) (v_arrayElimCell_152 (_ BitVec 32))) (let ((.cse4 (select .cse7 v_arrayElimCell_152))) (or (= (select .cse4 .cse5) .cse6) (= (select .cse4 (bvadd v_arrayElimCell_153 (_ bv4 32))) .cse6)))) (= (select (select .cse7 |c_ULTIMATE.start_main_~item~0#1.base|) .cse5) .cse6) (not (= v_ArrVal_953 (store (select .cse8 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse9 (select v_ArrVal_953 .cse9)))))))) (or .cse3 .cse1) (or (not .cse0) (not .cse3) (forall ((v_ArrVal_948 (_ BitVec 32)) (v_ArrVal_953 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse13 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base| (store .cse11 .cse12 v_ArrVal_948)))) (or (= (select (select (store .cse13 |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_953) |c_ULTIMATE.start_main_~item~0#1.base|) .cse5) (select v_ArrVal_953 .cse10)) (not (= v_ArrVal_953 (store (select .cse13 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse9 (select v_ArrVal_953 .cse9)))))))) (or .cse2 .cse0)))) is different from false [2024-12-02 09:12:19,959 INFO L349 Elim1Store]: treesize reduction 31, result has 40.4 percent of original size [2024-12-02 09:12:19,959 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 190 treesize of output 144 [2024-12-02 09:12:20,097 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2024-12-02 09:12:20,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 208 treesize of output 204 [2024-12-02 09:12:20,810 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:12:20,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 97 [2024-12-02 09:12:31,049 INFO L349 Elim1Store]: treesize reduction 5, result has 96.2 percent of original size [2024-12-02 09:12:31,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 297 treesize of output 302 [2024-12-02 09:12:31,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:12:31,725 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:12:31,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152040359] [2024-12-02 09:12:31,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152040359] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:12:31,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 09:12:31,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2024-12-02 09:12:31,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282178461] [2024-12-02 09:12:31,726 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 09:12:31,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 09:12:31,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:12:31,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 09:12:31,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=430, Unknown=2, NotChecked=42, Total=552 [2024-12-02 09:12:31,727 INFO L87 Difference]: Start difference. First operand 112 states and 132 transitions. Second operand has 24 states, 24 states have (on average 2.1666666666666665) internal successors, (52), 24 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:12:35,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 09:12:37,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:12:40,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:12:42,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:12:45,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:12:48,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:12:51,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 09:12:54,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:12:56,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:12:59,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:13:03,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 09:13:07,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 09:13:11,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:13:13,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:13:17,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 09:13:29,644 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse7 (bvadd |c_ULTIMATE.start_main_~item~0#1.offset| (_ bv4 32))) (.cse15 (bvadd |c_ULTIMATE.start_main_~bucket~0#1.offset| (_ bv4 32))) (.cse14 (bvadd |c_ULTIMATE.start_main_~bucket~0#1.offset| (_ bv8 32))) (.cse8 (select |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base|)) (.cse16 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~bcki~0#1.offset|))) (let ((.cse10 (forall ((v_ArrVal_948 (_ BitVec 32)) (v_arrayElimCell_153 (_ BitVec 32)) (v_ArrVal_953 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_152 (_ BitVec 32))) (let ((.cse28 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base| (store .cse8 .cse16 v_ArrVal_948)))) (let ((.cse26 (store .cse28 |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_953)) (.cse27 (select v_ArrVal_953 .cse14))) (or (= (select (select .cse26 v_arrayElimCell_152) (bvadd v_arrayElimCell_153 (_ bv4 32))) .cse27) (= (select (select .cse26 |c_ULTIMATE.start_main_~item~0#1.base|) .cse7) .cse27) (not (= v_ArrVal_953 (store (select .cse28 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse15 (select v_ArrVal_953 .cse15))))))))) (.cse12 (= |c_ULTIMATE.start_main_~bucket~0#1.offset| |c_ULTIMATE.start_main_~bcki~0#1.offset|)) (.cse11 (= |c_ULTIMATE.start_main_~bcki~0#1.base| |c_ULTIMATE.start_main_~bucket~0#1.base|)) (.cse17 (and (forall ((v_ArrVal_948 (_ BitVec 32)) (v_ArrVal_953 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse22 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base| (store .cse8 .cse16 v_ArrVal_948)))) (or (forall ((v_arrayElimCell_153 (_ BitVec 32)) (v_arrayElimCell_152 (_ BitVec 32))) (= (select (select (store .cse22 |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_953) v_arrayElimCell_152) (bvadd v_arrayElimCell_153 (_ bv4 32))) (select v_ArrVal_953 .cse14))) (not (= v_ArrVal_953 (store (select .cse22 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse15 (select v_ArrVal_953 .cse15))))))) (forall ((v_ArrVal_948 (_ BitVec 32)) (v_ArrVal_953 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse25 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base| (store .cse8 .cse16 v_ArrVal_948)))) (or (forall ((v_arrayElimCell_153 (_ BitVec 32)) (v_arrayElimCell_152 (_ BitVec 32))) (let ((.cse23 (select (store .cse25 |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_953) v_arrayElimCell_152)) (.cse24 (select v_ArrVal_953 .cse14))) (or (= (select .cse23 .cse7) .cse24) (= (select .cse23 (bvadd v_arrayElimCell_153 (_ bv4 32))) .cse24)))) (not (= v_ArrVal_953 (store (select .cse25 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse15 (select v_ArrVal_953 .cse15)))))))))) (let ((.cse0 (or .cse11 .cse17)) (.cse2 (or .cse10 .cse12)) (.cse3 (forall ((v_ArrVal_948 (_ BitVec 32)) (v_ArrVal_953 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse21 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base| (store .cse8 .cse16 v_ArrVal_948)))) (let ((.cse20 (store .cse21 |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_953)) (.cse19 (select v_ArrVal_953 .cse14))) (or (forall ((v_arrayElimCell_153 (_ BitVec 32)) (v_arrayElimCell_152 (_ BitVec 32))) (let ((.cse18 (select .cse20 v_arrayElimCell_152))) (or (= (select .cse18 .cse7) .cse19) (= (select .cse18 (bvadd v_arrayElimCell_153 (_ bv4 32))) .cse19)))) (= (select (select .cse20 |c_ULTIMATE.start_main_~item~0#1.base|) .cse7) .cse19) (not (= v_ArrVal_953 (store (select .cse21 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse15 (select v_ArrVal_953 .cse15))))))))) (.cse4 (or .cse12 .cse17)) (.cse5 (or (not .cse11) (not .cse12) (forall ((v_ArrVal_948 (_ BitVec 32)) (v_ArrVal_953 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse13 (store |c_#memory_int#1| |c_ULTIMATE.start_main_~bcki~0#1.base| (store .cse8 .cse16 v_ArrVal_948)))) (or (= (select (select (store .cse13 |c_ULTIMATE.start_main_~bucket~0#1.base| v_ArrVal_953) |c_ULTIMATE.start_main_~item~0#1.base|) .cse7) (select v_ArrVal_953 .cse14)) (not (= v_ArrVal_953 (store (select .cse13 |c_ULTIMATE.start_main_~bucket~0#1.base|) .cse15 (select v_ArrVal_953 .cse15))))))))) (.cse6 (or .cse10 .cse11))) (let ((.cse1 (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6))) (and .cse0 (or (not (= |c_ULTIMATE.start_main_#t~mem10#1| |c_ULTIMATE.start_main_#t~mem11#1|)) .cse1) (= |c_ULTIMATE.start_main_~item~0#1.offset| (_ bv0 32)) .cse2 .cse3 (= |c_ULTIMATE.start_main_~bucket~0#1.offset| (_ bv0 32)) (not (= |c_ULTIMATE.start_main_~bucket~0#1.base| |c_ULTIMATE.start_main_~item~0#1.base|)) .cse4 .cse5 .cse6 (or .cse1 (not (= (select (select |c_#memory_int#1| |c_ULTIMATE.start_main_~item~0#1.base|) .cse7) (select .cse8 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~bcki~0#1.offset|))))) (let ((.cse9 (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| |c_ULTIMATE.start_main_~bucket~0#1.base|))))) (or (and .cse9 (exists ((|v_ULTIMATE.start_main_~bcki~0#1.base_75| (_ BitVec 32))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| |v_ULTIMATE.start_main_~bcki~0#1.base_75|))))) (and .cse9 (exists ((|v_ULTIMATE.start_main_#t~malloc2#1.base_34| (_ BitVec 32))) (and (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc2#1.base_34|))) (not (= |v_ULTIMATE.start_main_#t~malloc2#1.base_34| |c_ULTIMATE.start_main_~bucket~0#1.base|)))))))))))) is different from false [2024-12-02 09:13:34,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-12-02 09:13:45,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:13:45,124 INFO L93 Difference]: Finished difference Result 274 states and 330 transitions. [2024-12-02 09:13:45,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 09:13:45,129 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.1666666666666665) internal successors, (52), 24 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-12-02 09:13:45,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:13:45,129 INFO L225 Difference]: With dead ends: 274 [2024-12-02 09:13:45,130 INFO L226 Difference]: Without dead ends: 233 [2024-12-02 09:13:45,130 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=264, Invalid=1073, Unknown=3, NotChecked=142, Total=1482 [2024-12-02 09:13:45,130 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 251 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 9 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 246 IncrementalHoareTripleChecker+Unchecked, 66.8s IncrementalHoareTripleChecker+Time [2024-12-02 09:13:45,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 444 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 599 Invalid, 8 Unknown, 246 Unchecked, 66.8s Time] [2024-12-02 09:13:45,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-12-02 09:13:45,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 171. [2024-12-02 09:13:45,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 169 states have (on average 1.2189349112426036) internal successors, (206), 170 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:13:45,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 206 transitions. [2024-12-02 09:13:45,191 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 206 transitions. Word has length 27 [2024-12-02 09:13:45,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:13:45,191 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 206 transitions. [2024-12-02 09:13:45,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.1666666666666665) internal successors, (52), 24 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:13:45,191 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 206 transitions. [2024-12-02 09:13:45,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 09:13:45,191 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:13:45,192 INFO L218 NwaCegarLoop]: trace histogram [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 09:13:45,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-12-02 09:13:45,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:13:45,392 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:13:45,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:13:45,393 INFO L85 PathProgramCache]: Analyzing trace with hash 360574330, now seen corresponding path program 1 times [2024-12-02 09:13:45,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:13:45,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2039800593] [2024-12-02 09:13:45,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:13:45,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:13:45,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:13:45,395 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:13:45,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 09:13:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:13:45,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 09:13:45,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:13:45,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2024-12-02 09:13:45,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:13:45,689 INFO L349 Elim1Store]: treesize reduction 45, result has 13.5 percent of original size [2024-12-02 09:13:45,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 37 [2024-12-02 09:13:45,744 INFO L349 Elim1Store]: treesize reduction 44, result has 10.2 percent of original size [2024-12-02 09:13:45,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 88 treesize of output 65 [2024-12-02 09:13:45,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2024-12-02 09:13:45,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2024-12-02 09:13:46,067 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-12-02 09:13:46,067 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 1 case distinctions, treesize of input 23 treesize of output 20 [2024-12-02 09:13:46,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:13:46,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-12-02 09:13:46,205 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2024-12-02 09:13:46,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2024-12-02 09:13:46,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2024-12-02 09:13:46,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-12-02 09:13:46,918 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:13:46,918 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:13:46,918 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:13:46,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039800593] [2024-12-02 09:13:46,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039800593] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:13:46,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:13:46,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 09:13:46,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083938787] [2024-12-02 09:13:46,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:13:46,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 09:13:46,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:13:46,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 09:13:46,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:13:46,919 INFO L87 Difference]: Start difference. First operand 171 states and 206 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:13:48,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:13:51,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:13:54,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:13:55,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:13:55,130 INFO L93 Difference]: Finished difference Result 281 states and 342 transitions. [2024-12-02 09:13:55,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 09:13:55,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-12-02 09:13:55,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:13:55,132 INFO L225 Difference]: With dead ends: 281 [2024-12-02 09:13:55,132 INFO L226 Difference]: Without dead ends: 183 [2024-12-02 09:13:55,132 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-12-02 09:13:55,133 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 83 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-12-02 09:13:55,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 105 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-12-02 09:13:55,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-12-02 09:13:55,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 175. [2024-12-02 09:13:55,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 173 states have (on average 1.2080924855491328) internal successors, (209), 174 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:13:55,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 209 transitions. [2024-12-02 09:13:55,200 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 209 transitions. Word has length 30 [2024-12-02 09:13:55,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:13:55,201 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 209 transitions. [2024-12-02 09:13:55,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:13:55,201 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 209 transitions. [2024-12-02 09:13:55,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 09:13:55,201 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:13:55,201 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:13:55,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 09:13:55,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:13:55,402 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-12-02 09:13:55,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:13:55,402 INFO L85 PathProgramCache]: Analyzing trace with hash 605370130, now seen corresponding path program 3 times [2024-12-02 09:13:55,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:13:55,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [90479066] [2024-12-02 09:13:55,403 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 09:13:55,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:13:55,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:13:55,405 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:13:55,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_200f7d83-6006-40be-accf-5d73fa1e1341/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 09:14:27,309 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-12-02 09:14:27,309 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 09:14:27,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-12-02 09:14:27,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:14:27,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 40 [2024-12-02 09:14:27,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 44 [2024-12-02 09:14:27,540 INFO L349 Elim1Store]: treesize reduction 66, result has 20.5 percent of original size [2024-12-02 09:14:27,540 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 91 treesize of output 90 [2024-12-02 09:14:27,579 INFO L349 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2024-12-02 09:14:27,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 59 treesize of output 43 [2024-12-02 09:14:27,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 09:14:27,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 47 [2024-12-02 09:14:27,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 23 [2024-12-02 09:14:27,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 09:14:27,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 49