./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/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_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/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_10161122-7914-4f6c-8f39-a93ce65203c3/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 4db0bca5538daf39b8ff60992164692d97581cce14eb7bcb8400899fae1cb0e3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:26:23,715 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:26:23,773 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 15:26:23,778 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:26:23,778 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:26:23,799 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:26:23,799 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:26:23,799 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:26:23,800 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:26:23,800 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:26:23,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:26:23,800 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:26:23,800 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:26:23,800 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:26:23,800 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:26:23,801 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:26:23,801 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:26:23,801 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:26:23,801 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:26:23,801 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:26:23,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:26:23,801 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:26:23,801 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:26:23,801 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:26:23,801 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:26:23,801 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:26:23,801 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:26:23,802 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:26:23,802 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:26:23,802 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:26:23,802 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:26:23,802 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:26:23,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:26:23,802 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:26:23,802 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:26:23,802 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:26:23,802 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:26:23,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:26:23,802 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:26:23,803 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:26:23,803 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:26:23,803 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:26:23,803 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:26:23,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:26:23,803 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:26:23,803 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:26:23,803 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:26:23,803 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:26:23,803 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_10161122-7914-4f6c-8f39-a93ce65203c3/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 -> 4db0bca5538daf39b8ff60992164692d97581cce14eb7bcb8400899fae1cb0e3 [2024-12-02 15:26:24,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:26:24,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:26:24,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:26:24,019 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:26:24,019 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:26:24,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-ll.c [2024-12-02 15:26:26,712 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/data/5fc0bfd1b/f63c124f698043d6856cb486d75d5778/FLAG8254bd5d1 [2024-12-02 15:26:26,916 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:26:26,916 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-ll.c [2024-12-02 15:26:26,928 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/data/5fc0bfd1b/f63c124f698043d6856cb486d75d5778/FLAG8254bd5d1 [2024-12-02 15:26:27,284 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/data/5fc0bfd1b/f63c124f698043d6856cb486d75d5778 [2024-12-02 15:26:27,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:26:27,287 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:26:27,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:26:27,288 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:26:27,291 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:26:27,291 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:26:27" (1/1) ... [2024-12-02 15:26:27,292 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aad8c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:27, skipping insertion in model container [2024-12-02 15:26:27,292 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:26:27" (1/1) ... [2024-12-02 15:26:27,303 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:26:27,428 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_10161122-7914-4f6c-8f39-a93ce65203c3/sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-ll.c[1076,1089] [2024-12-02 15:26:27,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:26:27,453 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:26:27,462 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_10161122-7914-4f6c-8f39-a93ce65203c3/sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-ll.c[1076,1089] [2024-12-02 15:26:27,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:26:27,483 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:26:27,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:27 WrapperNode [2024-12-02 15:26:27,484 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:26:27,485 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:26:27,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:26:27,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:26:27,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:27" (1/1) ... [2024-12-02 15:26:27,497 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:27" (1/1) ... [2024-12-02 15:26:27,511 INFO L138 Inliner]: procedures = 16, calls = 55, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2024-12-02 15:26:27,512 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:26:27,512 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:26:27,512 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:26:27,512 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:26:27,520 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:27" (1/1) ... [2024-12-02 15:26:27,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:27" (1/1) ... [2024-12-02 15:26:27,521 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:27" (1/1) ... [2024-12-02 15:26:27,534 INFO L175 MemorySlicer]: Split 29 memory accesses to 6 slices as follows [2, 3, 8, 5, 7, 4]. 28 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 9 writes are split as follows [0, 1, 3, 2, 1, 2]. [2024-12-02 15:26:27,534 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:27" (1/1) ... [2024-12-02 15:26:27,534 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:27" (1/1) ... [2024-12-02 15:26:27,539 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:27" (1/1) ... [2024-12-02 15:26:27,540 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:27" (1/1) ... [2024-12-02 15:26:27,542 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:27" (1/1) ... [2024-12-02 15:26:27,543 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:27" (1/1) ... [2024-12-02 15:26:27,544 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:27" (1/1) ... [2024-12-02 15:26:27,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:26:27,546 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:26:27,547 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:26:27,547 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:26:27,548 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:27" (1/1) ... [2024-12-02 15:26:27,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:26:27,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:26:27,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:26:27,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:26:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:26:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 15:26:27,601 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 15:26:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 15:26:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 15:26:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 15:26:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 15:26:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 15:26:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 15:26:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 15:26:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 15:26:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 15:26:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 15:26:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 15:26:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 15:26:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 15:26:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_38_0 [2024-12-02 15:26:27,602 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_38_0 [2024-12-02 15:26:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:26:27,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:26:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 15:26:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 15:26:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 15:26:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 15:26:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 15:26:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 15:26:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 15:26:27,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 15:26:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 15:26:27,681 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:26:27,683 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:26:27,819 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-12-02 15:26:27,819 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:26:27,828 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:26:27,828 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 15:26:27,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:26:27 BoogieIcfgContainer [2024-12-02 15:26:27,828 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:26:27,831 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:26:27,831 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:26:27,835 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:26:27,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:26:27" (1/3) ... [2024-12-02 15:26:27,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7e0b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:26:27, skipping insertion in model container [2024-12-02 15:26:27,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:26:27" (2/3) ... [2024-12-02 15:26:27,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7e0b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:26:27, skipping insertion in model container [2024-12-02 15:26:27,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:26:27" (3/3) ... [2024-12-02 15:26:27,837 INFO L128 eAbstractionObserver]: Analyzing ICFG recursified_geo1-ll.c [2024-12-02 15:26:27,849 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:26:27,850 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG recursified_geo1-ll.c that has 4 procedures, 31 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 15:26:27,893 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:26:27,904 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;@481197e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:26:27,904 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 15:26:27,908 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 15:26:27,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-02 15:26:27,914 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:26:27,914 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:26:27,915 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:26:27,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:26:27,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1816649915, now seen corresponding path program 1 times [2024-12-02 15:26:27,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:26:27,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260838769] [2024-12-02 15:26:27,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:26:27,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:26:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:26:28,086 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 15:26:28,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:26:28,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260838769] [2024-12-02 15:26:28,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260838769] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:26:28,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020024675] [2024-12-02 15:26:28,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:26:28,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:26:28,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:26:28,089 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:26:28,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 15:26:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:26:28,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 15:26:28,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:26:28,210 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 15:26:28,210 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:26:28,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020024675] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:26:28,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:26:28,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 15:26:28,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000710620] [2024-12-02 15:26:28,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:26:28,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 15:26:28,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:26:28,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 15:26:28,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 15:26:28,231 INFO L87 Difference]: Start difference. First operand has 31 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 15:26:28,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:26:28,244 INFO L93 Difference]: Finished difference Result 59 states and 76 transitions. [2024-12-02 15:26:28,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 15:26:28,246 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2024-12-02 15:26:28,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:26:28,250 INFO L225 Difference]: With dead ends: 59 [2024-12-02 15:26:28,251 INFO L226 Difference]: Without dead ends: 27 [2024-12-02 15:26:28,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 15:26:28,256 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:26:28,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:26:28,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-12-02 15:26:28,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-12-02 15:26:28,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 19 states have internal predecessors, (19), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 15:26:28,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2024-12-02 15:26:28,282 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 21 [2024-12-02 15:26:28,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:26:28,282 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2024-12-02 15:26:28,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 15:26:28,282 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2024-12-02 15:26:28,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-02 15:26:28,283 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:26:28,283 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:26:28,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 15:26:28,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 15:26:28,484 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:26:28,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:26:28,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1591034057, now seen corresponding path program 1 times [2024-12-02 15:26:28,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:26:28,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992827315] [2024-12-02 15:26:28,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:26:28,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:26:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 15:26:28,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [443310991] [2024-12-02 15:26:28,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:26:28,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:26:28,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:26:28,553 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:26:28,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 15:26:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:26:28,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-02 15:26:28,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:26:28,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 15:26:28,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-02 15:26:28,735 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 15:26:28,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-12-02 15:26:28,838 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 15 treesize of output 7 [2024-12-02 15:26:28,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 15:26:28,890 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:26:28,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:26:28,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992827315] [2024-12-02 15:26:28,891 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 15:26:28,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443310991] [2024-12-02 15:26:28,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443310991] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:26:28,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:26:28,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 15:26:28,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736185198] [2024-12-02 15:26:28,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:26:28,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 15:26:28,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:26:28,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 15:26:28,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:26:28,893 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 8 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 15:26:29,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:26:29,064 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2024-12-02 15:26:29,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:26:29,065 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-12-02 15:26:29,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:26:29,066 INFO L225 Difference]: With dead ends: 41 [2024-12-02 15:26:29,066 INFO L226 Difference]: Without dead ends: 39 [2024-12-02 15:26:29,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:26:29,067 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 12 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:26:29,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 141 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:26:29,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-12-02 15:26:29,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2024-12-02 15:26:29,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.12) internal successors, (28), 27 states have internal predecessors, (28), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-12-02 15:26:29,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2024-12-02 15:26:29,076 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 21 [2024-12-02 15:26:29,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:26:29,076 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2024-12-02 15:26:29,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 15:26:29,076 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2024-12-02 15:26:29,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-02 15:26:29,077 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:26:29,077 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:26:29,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 15:26:29,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:26:29,278 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:26:29,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:26:29,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1318146784, now seen corresponding path program 1 times [2024-12-02 15:26:29,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:26:29,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296518214] [2024-12-02 15:26:29,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:26:29,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:26:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 15:26:29,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [87863889] [2024-12-02 15:26:29,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:26:29,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:26:29,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:26:29,357 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:26:29,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 15:26:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:26:29,474 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 93 conjuncts are in the unsatisfiable core [2024-12-02 15:26:29,480 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:26:29,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 15:26:29,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-02 15:26:29,595 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 15:26:29,979 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 25 treesize of output 17 [2024-12-02 15:26:29,990 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 33 treesize of output 21 [2024-12-02 15:26:30,108 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 45 treesize of output 25 [2024-12-02 15:26:30,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2024-12-02 15:26:30,124 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 54 treesize of output 26 [2024-12-02 15:26:30,203 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:26:30,203 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:26:38,974 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 1 refuted. 2 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 15:26:38,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:26:38,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296518214] [2024-12-02 15:26:38,975 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 15:26:38,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87863889] [2024-12-02 15:26:38,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87863889] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:26:38,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:26:38,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10] total 26 [2024-12-02 15:26:38,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681487987] [2024-12-02 15:26:38,975 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 15:26:38,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 15:26:38,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:26:38,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 15:26:38,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=571, Unknown=2, NotChecked=0, Total=650 [2024-12-02 15:26:38,977 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 26 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 19 states have internal predecessors, (39), 11 states have call successors, (12), 9 states have call predecessors, (12), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-12-02 15:26:43,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:27:02,322 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 62 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 15:27:14,143 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 72 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 15:27:18,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:27:30,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:27:42,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:27:46,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:28:10,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:28:14,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:28:42,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:28:46,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:28:50,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:28:54,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:28:58,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:29:02,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:29:06,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:29:10,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:29:14,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:29:18,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:29:22,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:29:26,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:29:27,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:29:27,033 INFO L93 Difference]: Finished difference Result 79 states and 90 transitions. [2024-12-02 15:29:27,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-12-02 15:29:27,034 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 19 states have internal predecessors, (39), 11 states have call successors, (12), 9 states have call predecessors, (12), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 31 [2024-12-02 15:29:27,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:29:27,036 INFO L225 Difference]: With dead ends: 79 [2024-12-02 15:29:27,036 INFO L226 Difference]: Without dead ends: 77 [2024-12-02 15:29:27,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 99.6s TimeCoverageRelationStatistics Valid=266, Invalid=1697, Unknown=17, NotChecked=0, Total=1980 [2024-12-02 15:29:27,039 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 104 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 43 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:29:27,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 292 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 378 Invalid, 19 Unknown, 0 Unchecked, 77.3s Time] [2024-12-02 15:29:27,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-12-02 15:29:27,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 74. [2024-12-02 15:29:27,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 48 states have (on average 1.125) internal successors, (54), 53 states have internal predecessors, (54), 13 states have call successors, (13), 10 states have call predecessors, (13), 12 states have return successors, (18), 12 states have call predecessors, (18), 12 states have call successors, (18) [2024-12-02 15:29:27,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 85 transitions. [2024-12-02 15:29:27,063 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 85 transitions. Word has length 31 [2024-12-02 15:29:27,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:29:27,063 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 85 transitions. [2024-12-02 15:29:27,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 19 states have internal predecessors, (39), 11 states have call successors, (12), 9 states have call predecessors, (12), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-12-02 15:29:27,064 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 85 transitions. [2024-12-02 15:29:27,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-02 15:29:27,064 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:29:27,065 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] [2024-12-02 15:29:27,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 15:29:27,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:29:27,265 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:29:27,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:29:27,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1916633886, now seen corresponding path program 1 times [2024-12-02 15:29:27,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:29:27,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630990575] [2024-12-02 15:29:27,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:29:27,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:29:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 15:29:27,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [699421696] [2024-12-02 15:29:27,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:29:27,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:29:27,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:29:27,314 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:29:27,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 15:29:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:29:27,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 15:29:27,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:29:27,405 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 15:29:27,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-02 15:29:27,424 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 11 treesize of output 7 [2024-12-02 15:29:27,498 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 19 treesize of output 11 [2024-12-02 15:29:27,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 15:29:27,541 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 15:29:27,541 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:29:28,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:29:28,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630990575] [2024-12-02 15:29:28,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 15:29:28,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699421696] [2024-12-02 15:29:28,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699421696] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:29:28,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:29:28,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-12-02 15:29:28,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448853071] [2024-12-02 15:29:28,045 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 15:29:28,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 15:29:28,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:29:28,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 15:29:28,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:29:28,046 INFO L87 Difference]: Start difference. First operand 74 states and 85 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 15:29:28,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:29:28,233 INFO L93 Difference]: Finished difference Result 86 states and 96 transitions. [2024-12-02 15:29:28,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 15:29:28,233 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 31 [2024-12-02 15:29:28,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:29:28,235 INFO L225 Difference]: With dead ends: 86 [2024-12-02 15:29:28,235 INFO L226 Difference]: Without dead ends: 76 [2024-12-02 15:29:28,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-12-02 15:29:28,236 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 12 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:29:28,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 86 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:29:28,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-12-02 15:29:28,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-12-02 15:29:28,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 49 states have (on average 1.1020408163265305) internal successors, (54), 53 states have internal predecessors, (54), 13 states have call successors, (13), 10 states have call predecessors, (13), 13 states have return successors, (19), 12 states have call predecessors, (19), 12 states have call successors, (19) [2024-12-02 15:29:28,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2024-12-02 15:29:28,254 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 31 [2024-12-02 15:29:28,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:29:28,254 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2024-12-02 15:29:28,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 15:29:28,254 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2024-12-02 15:29:28,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-12-02 15:29:28,255 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:29:28,255 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:29:28,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 15:29:28,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:29:28,456 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:29:28,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:29:28,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1702851576, now seen corresponding path program 1 times [2024-12-02 15:29:28,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:29:28,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230928223] [2024-12-02 15:29:28,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:29:28,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:29:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 15:29:28,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1385939496] [2024-12-02 15:29:28,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:29:28,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:29:28,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:29:28,525 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:29:28,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 15:29:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:29:28,635 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 69 conjuncts are in the unsatisfiable core [2024-12-02 15:29:28,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:29:28,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 15:29:28,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 15:29:28,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-02 15:29:28,725 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 11 treesize of output 7 [2024-12-02 15:29:29,175 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 25 treesize of output 17 [2024-12-02 15:29:29,183 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 33 treesize of output 21 [2024-12-02 15:29:29,250 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:29:29,250 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 64 treesize of output 52 [2024-12-02 15:29:29,257 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 74 treesize of output 42 [2024-12-02 15:29:29,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2024-12-02 15:29:29,329 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 15:29:29,329 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:29:35,006 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 51 treesize of output 43 [2024-12-02 15:29:35,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2024-12-02 15:29:39,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:29:39,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230928223] [2024-12-02 15:29:39,610 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 15:29:39,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385939496] [2024-12-02 15:29:39,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385939496] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:29:39,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:29:39,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-12-02 15:29:39,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758125664] [2024-12-02 15:29:39,610 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 15:29:39,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 15:29:39,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:29:39,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 15:29:39,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=484, Unknown=1, NotChecked=0, Total=552 [2024-12-02 15:29:39,611 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 15 states have internal predecessors, (30), 7 states have call successors, (7), 4 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 15:29:43,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:29:44,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:29:44,405 INFO L93 Difference]: Finished difference Result 86 states and 96 transitions. [2024-12-02 15:29:44,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 15:29:44,406 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 15 states have internal predecessors, (30), 7 states have call successors, (7), 4 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Word has length 43 [2024-12-02 15:29:44,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:29:44,407 INFO L225 Difference]: With dead ends: 86 [2024-12-02 15:29:44,407 INFO L226 Difference]: Without dead ends: 74 [2024-12-02 15:29:44,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 29 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=125, Invalid=866, Unknown=1, NotChecked=0, Total=992 [2024-12-02 15:29:44,408 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 22 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:29:44,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 131 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 347 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-12-02 15:29:44,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-12-02 15:29:44,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-12-02 15:29:44,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 48 states have (on average 1.0833333333333333) internal successors, (52), 51 states have internal predecessors, (52), 13 states have call successors, (13), 10 states have call predecessors, (13), 12 states have return successors, (19), 12 states have call predecessors, (19), 12 states have call successors, (19) [2024-12-02 15:29:44,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 84 transitions. [2024-12-02 15:29:44,425 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 84 transitions. Word has length 43 [2024-12-02 15:29:44,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:29:44,425 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 84 transitions. [2024-12-02 15:29:44,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 15 states have internal predecessors, (30), 7 states have call successors, (7), 4 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 15:29:44,425 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 84 transitions. [2024-12-02 15:29:44,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-02 15:29:44,426 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:29:44,426 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:29:44,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 15:29:44,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:29:44,627 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:29:44,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:29:44,627 INFO L85 PathProgramCache]: Analyzing trace with hash 2005855186, now seen corresponding path program 2 times [2024-12-02 15:29:44,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:29:44,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082876370] [2024-12-02 15:29:44,627 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:29:44,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:29:44,700 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 15:29:44,700 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 15:29:44,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [465617505] [2024-12-02 15:29:44,703 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:29:44,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:29:44,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:29:44,705 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:29:44,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 15:29:45,164 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 15:29:45,164 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:29:45,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 106 conjuncts are in the unsatisfiable core [2024-12-02 15:29:45,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:29:45,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 15:29:45,485 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 51 treesize of output 43 [2024-12-02 15:29:45,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 27 [2024-12-02 15:29:45,494 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 19 [2024-12-02 15:29:45,643 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-02 15:29:45,643 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:29:52,306 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:29:52,306 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 64 treesize of output 59 [2024-12-02 15:29:52,316 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:29:52,317 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 48 treesize of output 51 [2024-12-02 15:29:57,052 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (select (select |c_#memory_int#4| |c_func_to_recursive_line_30_to_38_0_#in~z.base|) |c_func_to_recursive_line_30_to_38_0_#in~z.offset|)) (.cse3 (select (select |c_#memory_int#4| c_func_to_recursive_line_30_to_38_0_~z.base) c_func_to_recursive_line_30_to_38_0_~z.offset))) (and (or (= |c_func_to_recursive_line_30_to_38_0_#in~x.offset| c_func_to_recursive_line_30_to_38_0_~x.offset) (and (forall ((v_arrayElimCell_24 Int) (v_arrayElimCell_23 Int) (v_y_9 Int)) (let ((.cse0 (mod (+ (* .cse3 v_arrayElimCell_24) (* 18446744073709551615 v_arrayElimCell_24) 1) 18446744073709551616)) (.cse1 (* 18446744073709551616 v_y_9))) (or (< .cse0 (+ .cse1 1)) (< (+ 18446744073709551616 .cse1) .cse0) (< .cse0 1) (= .cse0 (+ (mod (+ (* .cse2 v_arrayElimCell_23) (* 18446744073709551615 v_arrayElimCell_23) 1) 18446744073709551616) .cse1))))) (forall ((v_arrayElimCell_24 Int) (v_arrayElimCell_23 Int) (v_y_9 Int)) (let ((.cse4 (* 18446744073709551616 v_y_9)) (.cse5 (mod (+ (* .cse3 v_arrayElimCell_24) (* 18446744073709551615 v_arrayElimCell_24) 1) 18446744073709551616))) (or (< .cse4 .cse5) (< (+ .cse5 18446744073709551615) .cse4) (= .cse5 (+ (mod (+ (* .cse2 v_arrayElimCell_23) (* 18446744073709551615 v_arrayElimCell_23) 1) 18446744073709551616) .cse4)) (< 0 .cse5)))))) (forall ((v_y_12 Int) (v_arrayElimCell_24 Int)) (let ((.cse8 (* 18446744073709551615 v_arrayElimCell_24))) (let ((.cse7 (* 18446744073709551616 v_y_12)) (.cse6 (mod (+ (* .cse3 v_arrayElimCell_24) .cse8 1) 18446744073709551616))) (or (< .cse6 (+ .cse7 1)) (= .cse6 (+ .cse7 (mod (+ (* .cse2 v_arrayElimCell_24) .cse8 1) 18446744073709551616))) (< .cse6 1) (< (+ .cse7 18446744073709551616) .cse6))))) (or (= c_func_to_recursive_line_30_to_38_0_~x.base |c_func_to_recursive_line_30_to_38_0_#in~x.base|) (and (forall ((v_y_15 Int) (v_arrayElimCell_24 Int) (v_arrayElimCell_23 Int)) (let ((.cse9 (* 18446744073709551616 v_y_15)) (.cse10 (mod (+ (* .cse3 v_arrayElimCell_24) (* 18446744073709551615 v_arrayElimCell_24) 1) 18446744073709551616))) (or (< (+ .cse9 18446744073709551616) .cse10) (< .cse10 (+ .cse9 1)) (= .cse10 (+ .cse9 (mod (+ (* .cse2 v_arrayElimCell_23) (* 18446744073709551615 v_arrayElimCell_23) 1) 18446744073709551616))) (< .cse10 1)))) (forall ((v_y_15 Int) (v_arrayElimCell_24 Int) (v_arrayElimCell_23 Int)) (let ((.cse12 (* 18446744073709551616 v_y_15)) (.cse11 (mod (+ (* .cse3 v_arrayElimCell_24) (* 18446744073709551615 v_arrayElimCell_24) 1) 18446744073709551616))) (or (< (+ .cse11 18446744073709551615) .cse12) (< .cse12 .cse11) (= .cse11 (+ .cse12 (mod (+ (* .cse2 v_arrayElimCell_23) (* 18446744073709551615 v_arrayElimCell_23) 1) 18446744073709551616))) (< 0 .cse11)))))) (forall ((v_y_12 Int) (v_arrayElimCell_24 Int)) (let ((.cse15 (* 18446744073709551615 v_arrayElimCell_24))) (let ((.cse13 (* 18446744073709551616 v_y_12)) (.cse14 (mod (+ (* .cse3 v_arrayElimCell_24) .cse15 1) 18446744073709551616))) (or (< .cse13 .cse14) (= .cse14 (+ .cse13 (mod (+ (* .cse2 v_arrayElimCell_24) .cse15 1) 18446744073709551616))) (< (+ .cse14 18446744073709551615) .cse13) (< 0 .cse14))))) (= |c_func_to_recursive_line_30_to_38_0_#in~y.offset| c_func_to_recursive_line_30_to_38_0_~y.offset) (= |c_func_to_recursive_line_30_to_38_0_#in~y.base| c_func_to_recursive_line_30_to_38_0_~y.base))) is different from false [2024-12-02 15:29:57,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:29:57,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082876370] [2024-12-02 15:29:57,066 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 15:29:57,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465617505] [2024-12-02 15:29:57,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465617505] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:29:57,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:29:57,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-12-02 15:29:57,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203047094] [2024-12-02 15:29:57,066 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 15:29:57,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:29:57,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:29:57,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:29:57,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=130, Unknown=2, NotChecked=22, Total=182 [2024-12-02 15:29:57,067 INFO L87 Difference]: Start difference. First operand 74 states and 84 transitions. Second operand has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-12-02 15:30:01,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:30:05,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-12-02 15:30:09,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:30:13,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:30:18,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 15:30:18,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:30:18,156 INFO L93 Difference]: Finished difference Result 80 states and 89 transitions. [2024-12-02 15:30:18,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 15:30:18,157 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 55 [2024-12-02 15:30:18,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:30:18,158 INFO L225 Difference]: With dead ends: 80 [2024-12-02 15:30:18,158 INFO L226 Difference]: Without dead ends: 58 [2024-12-02 15:30:18,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=50, Invalid=224, Unknown=2, NotChecked=30, Total=306 [2024-12-02 15:30:18,159 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 5 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2024-12-02 15:30:18,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 163 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 109 Invalid, 5 Unknown, 0 Unchecked, 20.7s Time] [2024-12-02 15:30:18,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-12-02 15:30:18,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2024-12-02 15:30:18,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 38 states have (on average 1.0263157894736843) internal successors, (39), 39 states have internal predecessors, (39), 12 states have call successors, (12), 10 states have call predecessors, (12), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 15:30:18,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2024-12-02 15:30:18,183 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 55 [2024-12-02 15:30:18,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:30:18,183 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2024-12-02 15:30:18,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-12-02 15:30:18,183 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2024-12-02 15:30:18,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-12-02 15:30:18,184 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:30:18,184 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:30:18,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 15:30:18,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:30:18,385 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:30:18,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:30:18,385 INFO L85 PathProgramCache]: Analyzing trace with hash -756898651, now seen corresponding path program 2 times [2024-12-02 15:30:18,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:30:18,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489303762] [2024-12-02 15:30:18,385 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:30:18,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:30:18,465 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 15:30:18,465 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 15:30:18,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1508185750] [2024-12-02 15:30:18,468 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:30:18,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:30:18,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:30:18,470 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:30:18,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10161122-7914-4f6c-8f39-a93ce65203c3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 15:30:25,548 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 15:30:25,548 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:30:25,555 WARN L254 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 287 conjuncts are in the unsatisfiable core [2024-12-02 15:30:25,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:30:25,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 15:30:25,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-02 15:30:25,811 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 15:30:25,819 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 15:30:26,309 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 25 treesize of output 17 [2024-12-02 15:30:26,318 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 33 treesize of output 21 [2024-12-02 15:30:26,336 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 19 treesize of output 11 [2024-12-02 15:30:27,250 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 37 treesize of output 25 [2024-12-02 15:30:27,263 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 39 treesize of output 27 [2024-12-02 15:30:27,283 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 19 treesize of output 11 [2024-12-02 15:30:28,354 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 19 treesize of output 11 [2024-12-02 15:30:28,365 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 44 treesize of output 32 [2024-12-02 15:30:28,382 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 48 treesize of output 36 [2024-12-02 15:30:29,602 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 64 treesize of output 52 [2024-12-02 15:30:29,614 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 49 treesize of output 37 [2024-12-02 15:30:29,918 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 40 treesize of output 32 [2024-12-02 15:30:29,926 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 76 treesize of output 64 [2024-12-02 15:30:29,945 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:30:29,946 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 114 treesize of output 50 [2024-12-02 15:30:30,192 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 1 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:30:30,192 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:30:51,760 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse2 (select (select |c_#memory_int#3| c_func_to_recursive_line_30_to_38_0_~y.base) c_func_to_recursive_line_30_to_38_0_~y.offset)) (.cse0 (select (select |c_#memory_int#4| c_func_to_recursive_line_30_to_38_0_~z.base) c_func_to_recursive_line_30_to_38_0_~z.offset)) (.cse1 (select (select |c_#memory_int#2| c_func_to_recursive_line_30_to_38_0_~x.base) c_func_to_recursive_line_30_to_38_0_~x.offset))) (or (not (= (mod (+ (* .cse0 .cse1) (* 18446744073709551615 .cse1) (* 18446744073709551615 .cse2) 1) 18446744073709551616) 0)) (= (mod (+ (* 18446744073709551615 .cse0 .cse1) (* 18446744073709551615 .cse2 .cse0) .cse0 (* .cse0 .cse0 .cse1)) 18446744073709551616) 0))) is different from true [2024-12-02 15:31:03,822 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_int#3| |c_func_to_recursive_line_30_to_38_0_#in~y.base|) |c_func_to_recursive_line_30_to_38_0_#in~y.offset|)) (.cse1 (select (select |c_#memory_int#4| |c_func_to_recursive_line_30_to_38_0_#in~z.base|) |c_func_to_recursive_line_30_to_38_0_#in~z.offset|)) (.cse2 (select (select |c_#memory_int#2| |c_func_to_recursive_line_30_to_38_0_#in~x.base|) |c_func_to_recursive_line_30_to_38_0_#in~x.offset|))) (or (not (= (mod (+ (* 18446744073709551615 .cse0) (* .cse1 .cse2) (* 18446744073709551615 .cse2) 1) 18446744073709551616) 0)) (= 0 (mod (+ (* .cse1 .cse1 .cse2) .cse1 (* 18446744073709551615 .cse1 .cse0) (* 18446744073709551615 .cse1 .cse2)) 18446744073709551616)))) is different from true [2024-12-02 15:31:21,025 WARN L286 SmtUtils]: Spent 5.10s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:31:25,034 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_int#3| c_func_to_recursive_line_30_to_38_0_~y.base) c_func_to_recursive_line_30_to_38_0_~y.offset)) (.cse1 (select (select |c_#memory_int#4| c_func_to_recursive_line_30_to_38_0_~z.base) c_func_to_recursive_line_30_to_38_0_~z.offset)) (.cse2 (select (select |c_#memory_int#2| c_func_to_recursive_line_30_to_38_0_~x.base) c_func_to_recursive_line_30_to_38_0_~x.offset))) (or (= (mod (+ (* 18446744073709551615 .cse0 .cse1 .cse1) (* 18446744073709551615 .cse1 .cse1 .cse2) (* .cse1 .cse1 .cse1 .cse2) (* .cse1 .cse1)) 18446744073709551616) 0) (not (= (mod (+ (* 18446744073709551615 .cse1 .cse2) (* 18446744073709551615 .cse0 .cse1) .cse1 (* .cse1 .cse1 .cse2)) 18446744073709551616) 0)))) is different from true [2024-12-02 15:31:49,249 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:31:57,283 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_int#3| c_func_to_recursive_line_30_to_38_0_~y.base) c_func_to_recursive_line_30_to_38_0_~y.offset)) (.cse1 (select (select |c_#memory_int#4| c_func_to_recursive_line_30_to_38_0_~z.base) c_func_to_recursive_line_30_to_38_0_~z.offset)) (.cse2 (select (select |c_#memory_int#2| c_func_to_recursive_line_30_to_38_0_~x.base) c_func_to_recursive_line_30_to_38_0_~x.offset))) (or (= (mod (+ (* 18446744073709551615 .cse0 .cse1 .cse1) (* 18446744073709551615 .cse1 .cse1 .cse2) (* .cse1 .cse1 .cse1 .cse2) (* .cse1 .cse1)) 18446744073709551616) 0) (not (= (mod (+ (* 18446744073709551615 .cse1 .cse2) (* 18446744073709551615 .cse0 .cse1) .cse1 (* .cse1 .cse1 .cse2)) 18446744073709551616) 0)) (not (= (mod (+ (* 18446744073709551615 |c_func_to_recursive_line_30_to_38_0_#t~mem7|) (* |c_func_to_recursive_line_30_to_38_0_#t~mem6| 18446744073709551615) (* |c_func_to_recursive_line_30_to_38_0_#t~mem4| |c_func_to_recursive_line_30_to_38_0_#t~mem5|) 1) 18446744073709551616) 0)))) is different from true [2024-12-02 15:32:02,497 WARN L286 SmtUtils]: Spent 5.20s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:32:10,530 WARN L873 $PredicateComparison]: unable to prove that (or (not (= |c___VERIFIER_assert_#in~cond| 0)) (forall ((v_func_to_recursive_line_30_to_38_0_~z.offset_BEFORE_CALL_18 Int) (v_func_to_recursive_line_30_to_38_0_~y.offset_BEFORE_CALL_18 Int) (v_func_to_recursive_line_30_to_38_0_~x.base_BEFORE_CALL_18 Int) (v_func_to_recursive_line_30_to_38_0_~z.base_BEFORE_CALL_18 Int) (v_func_to_recursive_line_30_to_38_0_~x.offset_BEFORE_CALL_18 Int) (v_func_to_recursive_line_30_to_38_0_~y.base_BEFORE_CALL_18 Int)) (let ((.cse1 (select (select |c_#memory_int#3| v_func_to_recursive_line_30_to_38_0_~y.base_BEFORE_CALL_18) v_func_to_recursive_line_30_to_38_0_~y.offset_BEFORE_CALL_18)) (.cse2 (select (select |c_#memory_int#2| v_func_to_recursive_line_30_to_38_0_~x.base_BEFORE_CALL_18) v_func_to_recursive_line_30_to_38_0_~x.offset_BEFORE_CALL_18)) (.cse0 (select (select |c_#memory_int#4| v_func_to_recursive_line_30_to_38_0_~z.base_BEFORE_CALL_18) v_func_to_recursive_line_30_to_38_0_~z.offset_BEFORE_CALL_18))) (or (not (= (mod (+ .cse0 (* 18446744073709551615 .cse0 .cse1) (* .cse2 .cse0 .cse0) (* 18446744073709551615 .cse2 .cse0)) 18446744073709551616) 0)) (= (mod (+ (* .cse0 .cse0) (* 18446744073709551615 .cse0 .cse0 .cse1) (* 18446744073709551615 .cse2 .cse0 .cse0) (* .cse2 .cse0 .cse0 .cse0)) 18446744073709551616) 0))))) is different from true [2024-12-02 15:32:31,396 WARN L873 $PredicateComparison]: unable to prove that (or (not (= |c___VERIFIER_assert_#in~cond| 0)) (forall ((v_func_to_recursive_line_30_to_38_0_~z.offset_BEFORE_CALL_18 Int) (v_func_to_recursive_line_30_to_38_0_~y.offset_BEFORE_CALL_18 Int) (v_func_to_recursive_line_30_to_38_0_~x.base_BEFORE_CALL_18 Int) (v_func_to_recursive_line_30_to_38_0_~z.base_BEFORE_CALL_18 Int) (v_func_to_recursive_line_30_to_38_0_~x.offset_BEFORE_CALL_18 Int) (v_func_to_recursive_line_30_to_38_0_~y.base_BEFORE_CALL_18 Int)) (let ((.cse1 (select (select |c_#memory_int#3| v_func_to_recursive_line_30_to_38_0_~y.base_BEFORE_CALL_18) v_func_to_recursive_line_30_to_38_0_~y.offset_BEFORE_CALL_18)) (.cse2 (select (select |c_#memory_int#2| v_func_to_recursive_line_30_to_38_0_~x.base_BEFORE_CALL_18) v_func_to_recursive_line_30_to_38_0_~x.offset_BEFORE_CALL_18)) (.cse0 (select (select |c_#memory_int#4| v_func_to_recursive_line_30_to_38_0_~z.base_BEFORE_CALL_18) v_func_to_recursive_line_30_to_38_0_~z.offset_BEFORE_CALL_18))) (or (not (= (mod (+ .cse0 (* 18446744073709551615 .cse0 .cse1) (* .cse2 .cse0 .cse0) (* 18446744073709551615 .cse2 .cse0)) 18446744073709551616) 0)) (= (mod (+ (* .cse0 .cse0) (* 18446744073709551615 .cse0 .cse0 .cse1) (* 18446744073709551615 .cse2 .cse0 .cse0) (* .cse2 .cse0 .cse0 .cse0)) 18446744073709551616) 0)))) (= c___VERIFIER_assert_~cond 0)) is different from true [2024-12-02 15:32:43,416 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:33:00,329 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:33:04,336 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse2 (select (select |c_#memory_int#3| c_func_to_recursive_line_30_to_38_0_~y.base) c_func_to_recursive_line_30_to_38_0_~y.offset)) (.cse0 (select (select |c_#memory_int#4| c_func_to_recursive_line_30_to_38_0_~z.base) c_func_to_recursive_line_30_to_38_0_~z.offset)) (.cse1 (select (select |c_#memory_int#2| c_func_to_recursive_line_30_to_38_0_~x.base) c_func_to_recursive_line_30_to_38_0_~x.offset))) (or (not (= (mod (+ (* .cse0 .cse1) (* 18446744073709551615 .cse1) (* 18446744073709551615 .cse2) 1) 18446744073709551616) 0)) (= (mod (+ (* 18446744073709551615 .cse2 .cse0 .cse0) (* 18446744073709551615 .cse0 .cse0 .cse1) (* .cse0 .cse0 .cse0 .cse1) (* .cse0 .cse0)) 18446744073709551616) 0) (not (= (mod (+ (* 18446744073709551615 .cse0 .cse1) (* 18446744073709551615 .cse2 .cse0) .cse0 (* .cse0 .cse0 .cse1)) 18446744073709551616) 0)))) is different from true [2024-12-02 15:33:20,475 WARN L286 SmtUtils]: Spent 12.06s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:33:32,510 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:33:36,516 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse2 (select (select |c_#memory_int#3| |c_func_to_recursive_line_30_to_38_0_#in~y.base|) |c_func_to_recursive_line_30_to_38_0_#in~y.offset|)) (.cse0 (select (select |c_#memory_int#4| |c_func_to_recursive_line_30_to_38_0_#in~z.base|) |c_func_to_recursive_line_30_to_38_0_#in~z.offset|)) (.cse1 (select (select |c_#memory_int#2| |c_func_to_recursive_line_30_to_38_0_#in~x.base|) |c_func_to_recursive_line_30_to_38_0_#in~x.offset|))) (or (= (mod (+ (* .cse0 .cse0 .cse0 .cse1) (* 18446744073709551615 .cse0 .cse0 .cse2) (* .cse0 .cse0) (* 18446744073709551615 .cse0 .cse0 .cse1)) 18446744073709551616) 0) (not (= 0 (mod (+ (* .cse0 .cse0 .cse1) .cse0 (* 18446744073709551615 .cse0 .cse2) (* 18446744073709551615 .cse0 .cse1)) 18446744073709551616))) (not (= (mod (+ (* 18446744073709551615 .cse2) (* .cse0 .cse1) (* 18446744073709551615 .cse1) 1) 18446744073709551616) 0)))) is different from true [2024-12-02 15:33:48,542 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:34:04,614 WARN L286 SmtUtils]: Spent 12.06s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:34:16,689 WARN L286 SmtUtils]: Spent 12.07s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:34:33,127 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:34:37,158 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse2 (select (select |c_#memory_int#3| c_func_to_recursive_line_30_to_38_0_~y.base) c_func_to_recursive_line_30_to_38_0_~y.offset)) (.cse1 (select (select |c_#memory_int#2| c_func_to_recursive_line_30_to_38_0_~x.base) c_func_to_recursive_line_30_to_38_0_~x.offset)) (.cse0 (select (select |c_#memory_int#4| c_func_to_recursive_line_30_to_38_0_~z.base) c_func_to_recursive_line_30_to_38_0_~z.offset))) (or (not (= (mod (+ (* 18446744073709551615 .cse0 .cse1) (* 18446744073709551615 .cse2 .cse0) .cse0 (* .cse0 .cse0 .cse1)) 18446744073709551616) 0)) (= (mod (+ (* .cse0 .cse0 .cse0 .cse0 .cse1) (* 18446744073709551615 .cse0 .cse0 .cse0 .cse1) (* 18446744073709551615 .cse2 .cse0 .cse0 .cse0) (* .cse0 .cse0 .cse0)) 18446744073709551616) 0) (not (= (mod (+ (* 18446744073709551615 .cse2 .cse0 .cse0) (* 18446744073709551615 .cse0 .cse0 .cse1) (* .cse0 .cse0 .cse0 .cse1) (* .cse0 .cse0)) 18446744073709551616) 0)))) is different from true [2024-12-02 15:34:49,187 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:35:05,322 WARN L286 SmtUtils]: Spent 12.09s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:35:17,384 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:35:33,443 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:35:45,460 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:35:49,471 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse2 (select (select |c_#memory_int#3| c_func_to_recursive_line_30_to_38_0_~y.base) c_func_to_recursive_line_30_to_38_0_~y.offset)) (.cse1 (select (select |c_#memory_int#2| c_func_to_recursive_line_30_to_38_0_~x.base) c_func_to_recursive_line_30_to_38_0_~x.offset)) (.cse0 (select (select |c_#memory_int#4| c_func_to_recursive_line_30_to_38_0_~z.base) c_func_to_recursive_line_30_to_38_0_~z.offset))) (or (not (= (mod (+ (* 18446744073709551615 .cse0 .cse1) (* 18446744073709551615 .cse2 .cse0) .cse0 (* .cse0 .cse0 .cse1)) 18446744073709551616) 0)) (not (= (mod (+ (* 18446744073709551615 |c_func_to_recursive_line_30_to_38_0_#t~mem7|) (* |c_func_to_recursive_line_30_to_38_0_#t~mem6| 18446744073709551615) (* |c_func_to_recursive_line_30_to_38_0_#t~mem4| |c_func_to_recursive_line_30_to_38_0_#t~mem5|) 1) 18446744073709551616) 0)) (= (mod (+ (* .cse0 .cse0 .cse0 .cse0 .cse1) (* 18446744073709551615 .cse0 .cse0 .cse0 .cse1) (* 18446744073709551615 .cse2 .cse0 .cse0 .cse0) (* .cse0 .cse0 .cse0)) 18446744073709551616) 0) (not (= (mod (+ (* 18446744073709551615 .cse2 .cse0 .cse0) (* 18446744073709551615 .cse0 .cse0 .cse1) (* .cse0 .cse0 .cse0 .cse1) (* .cse0 .cse0)) 18446744073709551616) 0)))) is different from true [2024-12-02 15:36:05,525 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:36:17,563 WARN L286 SmtUtils]: Spent 12.04s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:36:21,575 WARN L873 $PredicateComparison]: unable to prove that (or (not (= |c___VERIFIER_assert_#in~cond| 0)) (forall ((v_func_to_recursive_line_30_to_38_0_~z.offset_BEFORE_CALL_19 Int) (v_func_to_recursive_line_30_to_38_0_~y.offset_BEFORE_CALL_19 Int) (v_func_to_recursive_line_30_to_38_0_~x.base_BEFORE_CALL_19 Int) (v_func_to_recursive_line_30_to_38_0_~z.base_BEFORE_CALL_19 Int) (v_func_to_recursive_line_30_to_38_0_~x.offset_BEFORE_CALL_19 Int) (v_func_to_recursive_line_30_to_38_0_~y.base_BEFORE_CALL_19 Int)) (let ((.cse2 (select (select |c_#memory_int#3| v_func_to_recursive_line_30_to_38_0_~y.base_BEFORE_CALL_19) v_func_to_recursive_line_30_to_38_0_~y.offset_BEFORE_CALL_19)) (.cse0 (select (select |c_#memory_int#2| v_func_to_recursive_line_30_to_38_0_~x.base_BEFORE_CALL_19) v_func_to_recursive_line_30_to_38_0_~x.offset_BEFORE_CALL_19)) (.cse1 (select (select |c_#memory_int#4| v_func_to_recursive_line_30_to_38_0_~z.base_BEFORE_CALL_19) v_func_to_recursive_line_30_to_38_0_~z.offset_BEFORE_CALL_19))) (or (= (mod (+ (* 18446744073709551615 .cse0 .cse1 .cse1 .cse1) (* 18446744073709551615 .cse1 .cse1 .cse1 .cse2) (* .cse1 .cse1 .cse1) (* .cse0 .cse1 .cse1 .cse1 .cse1)) 18446744073709551616) 0) (not (= (mod (+ .cse1 (* 18446744073709551615 .cse0 .cse1) (* 18446744073709551615 .cse1 .cse2) (* .cse0 .cse1 .cse1)) 18446744073709551616) 0)) (not (= (mod (+ (* .cse0 .cse1 .cse1 .cse1) (* .cse1 .cse1) (* 18446744073709551615 .cse1 .cse1 .cse2) (* 18446744073709551615 .cse0 .cse1 .cse1)) 18446744073709551616) 0)))))) is different from true [2024-12-02 15:36:39,700 WARN L286 SmtUtils]: Spent 13.42s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:36:51,742 WARN L286 SmtUtils]: Spent 12.04s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:37:07,803 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:37:19,873 WARN L286 SmtUtils]: Spent 12.07s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:37:23,882 WARN L873 $PredicateComparison]: unable to prove that (or (not (= |c___VERIFIER_assert_#in~cond| 0)) (forall ((v_func_to_recursive_line_30_to_38_0_~z.offset_BEFORE_CALL_19 Int) (v_func_to_recursive_line_30_to_38_0_~y.offset_BEFORE_CALL_19 Int) (v_func_to_recursive_line_30_to_38_0_~x.base_BEFORE_CALL_19 Int) (v_func_to_recursive_line_30_to_38_0_~z.base_BEFORE_CALL_19 Int) (v_func_to_recursive_line_30_to_38_0_~x.offset_BEFORE_CALL_19 Int) (v_func_to_recursive_line_30_to_38_0_~y.base_BEFORE_CALL_19 Int)) (let ((.cse2 (select (select |c_#memory_int#3| v_func_to_recursive_line_30_to_38_0_~y.base_BEFORE_CALL_19) v_func_to_recursive_line_30_to_38_0_~y.offset_BEFORE_CALL_19)) (.cse0 (select (select |c_#memory_int#2| v_func_to_recursive_line_30_to_38_0_~x.base_BEFORE_CALL_19) v_func_to_recursive_line_30_to_38_0_~x.offset_BEFORE_CALL_19)) (.cse1 (select (select |c_#memory_int#4| v_func_to_recursive_line_30_to_38_0_~z.base_BEFORE_CALL_19) v_func_to_recursive_line_30_to_38_0_~z.offset_BEFORE_CALL_19))) (or (= (mod (+ (* 18446744073709551615 .cse0 .cse1 .cse1 .cse1) (* 18446744073709551615 .cse1 .cse1 .cse1 .cse2) (* .cse1 .cse1 .cse1) (* .cse0 .cse1 .cse1 .cse1 .cse1)) 18446744073709551616) 0) (not (= (mod (+ .cse1 (* 18446744073709551615 .cse0 .cse1) (* 18446744073709551615 .cse1 .cse2) (* .cse0 .cse1 .cse1)) 18446744073709551616) 0)) (not (= (mod (+ (* .cse0 .cse1 .cse1 .cse1) (* .cse1 .cse1) (* 18446744073709551615 .cse1 .cse1 .cse2) (* 18446744073709551615 .cse0 .cse1 .cse1)) 18446744073709551616) 0))))) (= c___VERIFIER_assert_~cond 0)) is different from true [2024-12-02 15:37:35,949 WARN L286 SmtUtils]: Spent 12.06s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:37:52,041 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:38:04,063 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:38:08,124 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse2 (select (select |c_#memory_int#3| c_func_to_recursive_line_30_to_38_0_~y.base) c_func_to_recursive_line_30_to_38_0_~y.offset)) (.cse1 (select (select |c_#memory_int#2| c_func_to_recursive_line_30_to_38_0_~x.base) c_func_to_recursive_line_30_to_38_0_~x.offset)) (.cse0 (select (select |c_#memory_int#4| c_func_to_recursive_line_30_to_38_0_~z.base) c_func_to_recursive_line_30_to_38_0_~z.offset))) (or (not (= (mod (+ (* .cse0 .cse1) (* 18446744073709551615 .cse1) (* 18446744073709551615 .cse2) 1) 18446744073709551616) 0)) (not (= (mod (+ (* 18446744073709551615 .cse0 .cse1) (* 18446744073709551615 .cse2 .cse0) .cse0 (* .cse0 .cse0 .cse1)) 18446744073709551616) 0)) (= (mod (+ (* .cse0 .cse0 .cse0 .cse0 .cse1) (* 18446744073709551615 .cse0 .cse0 .cse0 .cse1) (* 18446744073709551615 .cse2 .cse0 .cse0 .cse0) (* .cse0 .cse0 .cse0)) 18446744073709551616) 0) (not (= (mod (+ (* 18446744073709551615 .cse2 .cse0 .cse0) (* 18446744073709551615 .cse0 .cse0 .cse1) (* .cse0 .cse0 .cse0 .cse1) (* .cse0 .cse0)) 18446744073709551616) 0)))) is different from true [2024-12-02 15:38:20,262 WARN L286 SmtUtils]: Spent 12.13s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:38:32,290 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:38:44,302 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:38:52,387 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse2 (select (select |c_#memory_int#3| |c_func_to_recursive_line_30_to_38_0_#in~y.base|) |c_func_to_recursive_line_30_to_38_0_#in~y.offset|)) (.cse0 (select (select |c_#memory_int#4| |c_func_to_recursive_line_30_to_38_0_#in~z.base|) |c_func_to_recursive_line_30_to_38_0_#in~z.offset|)) (.cse1 (select (select |c_#memory_int#2| |c_func_to_recursive_line_30_to_38_0_#in~x.base|) |c_func_to_recursive_line_30_to_38_0_#in~x.offset|))) (or (not (= 0 (mod (+ (* .cse0 .cse0 .cse1) .cse0 (* 18446744073709551615 .cse0 .cse2) (* 18446744073709551615 .cse0 .cse1)) 18446744073709551616))) (= (mod (+ (* 18446744073709551615 .cse0 .cse0 .cse0 .cse2) (* .cse0 .cse0 .cse0 .cse0 .cse1) (* 18446744073709551615 .cse0 .cse0 .cse0 .cse1) (* .cse0 .cse0 .cse0)) 18446744073709551616) 0) (not (= (mod (+ (* 18446744073709551615 .cse2) (* .cse0 .cse1) (* 18446744073709551615 .cse1) 1) 18446744073709551616) 0)) (not (= (mod (+ (* .cse0 .cse0 .cse0 .cse1) (* 18446744073709551615 .cse0 .cse0 .cse2) (* .cse0 .cse0) (* 18446744073709551615 .cse0 .cse0 .cse1)) 18446744073709551616) 0)))) is different from true [2024-12-02 15:39:04,771 WARN L286 SmtUtils]: Spent 12.37s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:39:21,366 WARN L286 SmtUtils]: Spent 12.56s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:39:33,380 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:39:45,560 WARN L286 SmtUtils]: Spent 12.17s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:39:57,598 WARN L286 SmtUtils]: Spent 12.04s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:40:13,716 WARN L286 SmtUtils]: Spent 12.05s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:40:17,731 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse2 (select (select |c_#memory_int#3| c_func_to_recursive_line_30_to_38_0_~y.base) c_func_to_recursive_line_30_to_38_0_~y.offset)) (.cse1 (select (select |c_#memory_int#2| c_func_to_recursive_line_30_to_38_0_~x.base) c_func_to_recursive_line_30_to_38_0_~x.offset)) (.cse0 (select (select |c_#memory_int#4| c_func_to_recursive_line_30_to_38_0_~z.base) c_func_to_recursive_line_30_to_38_0_~z.offset))) (or (not (= (mod (+ (* .cse0 .cse0 .cse0 .cse0 .cse1) (* 18446744073709551615 .cse0 .cse0 .cse0 .cse1) (* 18446744073709551615 .cse2 .cse0 .cse0 .cse0) (* .cse0 .cse0 .cse0)) 18446744073709551616) 0)) (= 0 (mod (+ (* 18446744073709551615 .cse2 .cse0 .cse0 .cse0 .cse0) (* .cse0 .cse0 .cse0 .cse0 .cse0 .cse1) (* 18446744073709551615 .cse0 .cse0 .cse0 .cse0 .cse1) (* .cse0 .cse0 .cse0 .cse0)) 18446744073709551616)) (not (= (mod (+ (* 18446744073709551615 .cse0 .cse1) (* 18446744073709551615 .cse2 .cse0) .cse0 (* .cse0 .cse0 .cse1)) 18446744073709551616) 0)) (not (= (mod (+ (* 18446744073709551615 .cse2 .cse0 .cse0) (* 18446744073709551615 .cse0 .cse0 .cse1) (* .cse0 .cse0 .cse0 .cse1) (* .cse0 .cse0)) 18446744073709551616) 0)))) is different from true [2024-12-02 15:40:29,922 WARN L286 SmtUtils]: Spent 12.18s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:40:42,026 WARN L286 SmtUtils]: Spent 12.10s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:40:58,122 WARN L286 SmtUtils]: Spent 12.06s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:41:10,168 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:41:26,112 WARN L286 SmtUtils]: Spent 15.94s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 15:41:42,187 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)