./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/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_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/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 64bit --witnessprinter.graph.data.programhash 571c11c6f0409625a5365ddd11520f6f1824739b70fa0b8a35b203b7dabba441 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:00:31,619 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:00:31,676 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 15:00:31,680 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:00:31,681 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:00:31,701 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:00:31,702 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:00:31,702 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:00:31,702 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:00:31,702 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:00:31,702 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:00:31,702 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:00:31,703 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:00:31,703 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:00:31,703 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:00:31,703 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:00:31,703 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:00:31,703 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:00:31,703 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:00:31,703 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:00:31,703 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:00:31,703 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:00:31,704 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:00:31,704 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:00:31,704 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:00:31,704 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:00:31,704 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:00:31,704 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:00:31,704 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:00:31,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:00:31,704 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:00:31,704 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:00:31,704 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:00:31,704 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:00:31,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:00:31,705 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:00:31,705 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:00:31,705 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:00:31,705 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:00:31,705 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:00:31,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:00:31,705 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:00:31,705 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:00:31,705 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:00:31,705 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:00:31,705 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_8736bdee-c6db-492f-bb35-a6af08f249ce/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 571c11c6f0409625a5365ddd11520f6f1824739b70fa0b8a35b203b7dabba441 [2024-12-02 15:00:31,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:00:31,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:00:31,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:00:31,950 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:00:31,951 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:00:31,952 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i [2024-12-02 15:00:34,567 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/data/a29bb0387/08dd8556c6644f7ca49baa193fec78b1/FLAG4afefb1fc [2024-12-02 15:00:34,989 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:00:34,989 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i [2024-12-02 15:00:35,019 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/data/a29bb0387/08dd8556c6644f7ca49baa193fec78b1/FLAG4afefb1fc [2024-12-02 15:00:35,146 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/data/a29bb0387/08dd8556c6644f7ca49baa193fec78b1 [2024-12-02 15:00:35,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:00:35,150 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:00:35,151 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:00:35,151 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:00:35,155 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:00:35,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:00:35" (1/1) ... [2024-12-02 15:00:35,156 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62f8615f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:35, skipping insertion in model container [2024-12-02 15:00:35,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:00:35" (1/1) ... [2024-12-02 15:00:35,239 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:00:35,568 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3747] [2024-12-02 15:00:35,568 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3748-3749] [2024-12-02 15:00:35,841 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_8736bdee-c6db-492f-bb35-a6af08f249ce/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i[117013,117026] [2024-12-02 15:00:36,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:00:36,704 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:00:36,773 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3747] [2024-12-02 15:00:36,773 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3748-3749] [2024-12-02 15:00:36,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"./arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [3884-3885] [2024-12-02 15:00:36,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [3890-3892] [2024-12-02 15:00:36,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"./arch/x86/include/asm/paravirt.h"), "i" (809), "i" (12UL)); [3914-3915] [2024-12-02 15:00:36,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.restore_fl.func), [paravirt_clobber] "i" (1), "D" (f): "memory", "cc"); [3920-3922] [2024-12-02 15:00:36,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"./arch/x86/include/asm/paravirt.h"), "i" (814), "i" (12UL)); [3943-3944] [2024-12-02 15:00:36,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (46UL), [paravirt_opptr] "i" (& pv_irq_ops.irq_disable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [3949-3951] [2024-12-02 15:00:36,784 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [4026] [2024-12-02 15:00:36,784 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [4033] [2024-12-02 15:00:36,787 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_8736bdee-c6db-492f-bb35-a6af08f249ce/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i[117013,117026] [2024-12-02 15:00:36,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:00:37,035 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:00:37,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37 WrapperNode [2024-12-02 15:00:37,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:00:37,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:00:37,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:00:37,037 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:00:37,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:37,103 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:37,235 INFO L138 Inliner]: procedures = 245, calls = 3427, calls flagged for inlining = 97, calls inlined = 89, statements flattened = 5385 [2024-12-02 15:00:37,235 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:00:37,236 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:00:37,236 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:00:37,236 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:00:37,243 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:37,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:37,275 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:38,218 INFO L175 MemorySlicer]: Split 1125 memory accesses to 24 slices as follows [2, 4, 4, 4, 315, 2, 2, 4, 7, 2, 8, 8, 600, 3, 7, 4, 90, 6, 12, 24, 8, 3, 3, 3]. 53 percent of accesses are in the largest equivalence class. The 99 initializations are split as follows [2, 4, 4, 4, 0, 0, 0, 4, 7, 0, 8, 8, 25, 2, 7, 4, 0, 6, 0, 0, 8, 0, 3, 3]. The 506 writes are split as follows [0, 0, 0, 0, 270, 1, 1, 0, 0, 1, 0, 0, 116, 0, 0, 0, 90, 0, 3, 24, 0, 0, 0, 0]. [2024-12-02 15:00:38,218 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:38,218 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:38,316 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:38,325 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:38,344 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:38,376 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:38,388 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:38,450 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:00:38,451 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:00:38,451 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:00:38,451 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:00:38,452 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:38,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:00:38,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:00:38,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:00:38,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:00:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_resume [2024-12-02 15:00:38,507 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_resume [2024-12-02 15:00:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_complete_request [2024-12-02 15:00:38,507 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_complete_request [2024-12-02 15:00:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_pullup [2024-12-02 15:00:38,507 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_pullup [2024-12-02 15:00:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_enable [2024-12-02 15:00:38,508 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_enable [2024-12-02 15:00:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_phy_disable [2024-12-02 15:00:38,508 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_phy_disable [2024-12-02 15:00:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-02 15:00:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-02 15:00:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-02 15:00:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-02 15:00:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-02 15:00:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-02 15:00:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-02 15:00:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-02 15:00:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-12-02 15:00:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-12-02 15:00:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-12-02 15:00:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2024-12-02 15:00:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2024-12-02 15:00:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2024-12-02 15:00:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2024-12-02 15:00:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2024-12-02 15:00:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#16 [2024-12-02 15:00:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#17 [2024-12-02 15:00:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#18 [2024-12-02 15:00:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#19 [2024-12-02 15:00:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#20 [2024-12-02 15:00:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#21 [2024-12-02 15:00:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#22 [2024-12-02 15:00:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#23 [2024-12-02 15:00:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 15:00:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 15:00:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 15:00:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 15:00:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 15:00:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 15:00:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 15:00:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 15:00:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 15:00:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 15:00:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-02 15:00:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-12-02 15:00:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-12-02 15:00:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-12-02 15:00:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-12-02 15:00:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-12-02 15:00:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-12-02 15:00:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-12-02 15:00:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-12-02 15:00:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2024-12-02 15:00:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2024-12-02 15:00:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#21 [2024-12-02 15:00:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#22 [2024-12-02 15:00:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#23 [2024-12-02 15:00:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-02 15:00:38,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-02 15:00:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2024-12-02 15:00:38,511 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2024-12-02 15:00:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-12-02 15:00:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-12-02 15:00:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 15:00:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 15:00:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2024-12-02 15:00:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2024-12-02 15:00:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure ep_open [2024-12-02 15:00:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_open [2024-12-02 15:00:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_disconnect [2024-12-02 15:00:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_disconnect [2024-12-02 15:00:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2024-12-02 15:00:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2024-12-02 15:00:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2024-12-02 15:00:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2024-12-02 15:00:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2024-12-02 15:00:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2024-12-02 15:00:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-02 15:00:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-02 15:00:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-12-02 15:00:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-12-02 15:00:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-12-02 15:00:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-12-02 15:00:38,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-12-02 15:00:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-12-02 15:00:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-12-02 15:00:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-12-02 15:00:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-12-02 15:00:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-12-02 15:00:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-12-02 15:00:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-12-02 15:00:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2024-12-02 15:00:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#13 [2024-12-02 15:00:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#14 [2024-12-02 15:00:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#15 [2024-12-02 15:00:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#16 [2024-12-02 15:00:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#17 [2024-12-02 15:00:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#18 [2024-12-02 15:00:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#19 [2024-12-02 15:00:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#20 [2024-12-02 15:00:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#21 [2024-12-02 15:00:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#22 [2024-12-02 15:00:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#23 [2024-12-02 15:00:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-12-02 15:00:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-12-02 15:00:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-12-02 15:00:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-12-02 15:00:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-12-02 15:00:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-12-02 15:00:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-12-02 15:00:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-12-02 15:00:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-12-02 15:00:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-12-02 15:00:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-12-02 15:00:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-12-02 15:00:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2024-12-02 15:00:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#13 [2024-12-02 15:00:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#14 [2024-12-02 15:00:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#15 [2024-12-02 15:00:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#16 [2024-12-02 15:00:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#17 [2024-12-02 15:00:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#18 [2024-12-02 15:00:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#19 [2024-12-02 15:00:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#20 [2024-12-02 15:00:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#21 [2024-12-02 15:00:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#22 [2024-12-02 15:00:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#23 [2024-12-02 15:00:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 15:00:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 15:00:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_write_fifo [2024-12-02 15:00:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_write_fifo [2024-12-02 15:00:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure __orr32 [2024-12-02 15:00:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __orr32 [2024-12-02 15:00:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_read_frameno [2024-12-02 15:00:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_read_frameno [2024-12-02 15:00:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure our_ep [2024-12-02 15:00:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure our_ep [2024-12-02 15:00:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_dump [2024-12-02 15:00:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_dump [2024-12-02 15:00:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_core_init [2024-12-02 15:00:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_core_init [2024-12-02 15:00:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_disable [2024-12-02 15:00:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_disable [2024-12-02 15:00:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 15:00:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2024-12-02 15:00:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2024-12-02 15:00:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-12-02 15:00:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-12-02 15:00:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure to_hsotg [2024-12-02 15:00:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure to_hsotg [2024-12-02 15:00:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2024-12-02 15:00:38,517 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2024-12-02 15:00:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 15:00:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 15:00:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 15:00:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 15:00:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 15:00:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 15:00:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 15:00:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 15:00:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 15:00:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 15:00:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 15:00:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-02 15:00:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-02 15:00:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-02 15:00:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-12-02 15:00:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-12-02 15:00:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-12-02 15:00:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-12-02 15:00:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-12-02 15:00:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-12-02 15:00:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-12-02 15:00:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-12-02 15:00:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2024-12-02 15:00:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2024-12-02 15:00:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_enqueue_setup [2024-12-02 15:00:38,519 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_enqueue_setup [2024-12-02 15:00:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_udc_start [2024-12-02 15:00:38,519 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_udc_start [2024-12-02 15:00:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2024-12-02 15:00:38,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2024-12-02 15:00:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-12-02 15:00:38,519 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_probe [2024-12-02 15:00:38,520 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_probe [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-12-02 15:00:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-12-02 15:00:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2024-12-02 15:00:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2024-12-02 15:00:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure our_req [2024-12-02 15:00:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure our_req [2024-12-02 15:00:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure ep_from_windex [2024-12-02 15:00:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_from_windex [2024-12-02 15:00:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_udc_stop [2024-12-02 15:00:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_udc_stop [2024-12-02 15:00:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2024-12-02 15:00:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2024-12-02 15:00:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-12-02 15:00:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-12-02 15:00:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_process_req_feature [2024-12-02 15:00:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_process_req_feature [2024-12-02 15:00:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_ep_enable [2024-12-02 15:00:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_ep_enable [2024-12-02 15:00:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_ep_queue [2024-12-02 15:00:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_ep_queue [2024-12-02 15:00:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure get_ep_head [2024-12-02 15:00:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure get_ep_head [2024-12-02 15:00:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-12-02 15:00:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-12-02 15:00:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable_unprepare [2024-12-02 15:00:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable_unprepare [2024-12-02 15:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure fifo_open [2024-12-02 15:00:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure fifo_open [2024-12-02 15:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure phy_exit [2024-12-02 15:00:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_exit [2024-12-02 15:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2024-12-02 15:00:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2024-12-02 15:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_ep_alloc_request [2024-12-02 15:00:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_ep_alloc_request [2024-12-02 15:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_init_fifo [2024-12-02 15:00:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_init_fifo [2024-12-02 15:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-02 15:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-02 15:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-02 15:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-02 15:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-02 15:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-02 15:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-02 15:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-02 15:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-12-02 15:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-12-02 15:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-12-02 15:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2024-12-02 15:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2024-12-02 15:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2024-12-02 15:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2024-12-02 15:00:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2024-12-02 15:00:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#16 [2024-12-02 15:00:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#17 [2024-12-02 15:00:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#18 [2024-12-02 15:00:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#19 [2024-12-02 15:00:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#20 [2024-12-02 15:00:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#21 [2024-12-02 15:00:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#22 [2024-12-02 15:00:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#23 [2024-12-02 15:00:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-12-02 15:00:38,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-12-02 15:00:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_send_reply [2024-12-02 15:00:38,525 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_send_reply [2024-12-02 15:00:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure phy_init [2024-12-02 15:00:38,525 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_init [2024-12-02 15:00:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_ep_free_request [2024-12-02 15:00:38,525 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_ep_free_request [2024-12-02 15:00:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2024-12-02 15:00:38,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2024-12-02 15:00:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure usb_phy_init [2024-12-02 15:00:38,525 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_phy_init [2024-12-02 15:00:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2024-12-02 15:00:38,526 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2024-12-02 15:00:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 15:00:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 15:00:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 15:00:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 15:00:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 15:00:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 15:00:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 15:00:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 15:00:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 15:00:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 15:00:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-02 15:00:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-12-02 15:00:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-12-02 15:00:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-12-02 15:00:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-12-02 15:00:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-12-02 15:00:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-12-02 15:00:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-12-02 15:00:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-12-02 15:00:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-12-02 15:00:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2024-12-02 15:00:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2024-12-02 15:00:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#22 [2024-12-02 15:00:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#23 [2024-12-02 15:00:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_ep0_mps [2024-12-02 15:00:38,528 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_ep0_mps [2024-12-02 15:00:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-12-02 15:00:38,528 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-12-02 15:00:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_ep_sethalt_lock [2024-12-02 15:00:38,528 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_ep_sethalt_lock [2024-12-02 15:00:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_complete_setup [2024-12-02 15:00:38,528 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_complete_setup [2024-12-02 15:00:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_process_control [2024-12-02 15:00:38,528 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_process_control [2024-12-02 15:00:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 15:00:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 15:00:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 15:00:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 15:00:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2024-12-02 15:00:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_txfifo_flush [2024-12-02 15:00:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_txfifo_flush [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_ep_sethalt [2024-12-02 15:00:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_ep_sethalt [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-12-02 15:00:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_ep_disable [2024-12-02 15:00:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_ep_disable [2024-12-02 15:00:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_corereset [2024-12-02 15:00:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_corereset [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-12-02 15:00:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_gadget_getframe [2024-12-02 15:00:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_gadget_getframe [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2024-12-02 15:00:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2024-12-02 15:00:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-12-02 15:00:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-12-02 15:00:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-12-02 15:00:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-12-02 15:00:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2024-12-02 15:00:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2024-12-02 15:00:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-12-02 15:00:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-12-02 15:00:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2024-12-02 15:00:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2024-12-02 15:00:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure state_open [2024-12-02 15:00:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure state_open [2024-12-02 15:00:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure __bic32 [2024-12-02 15:00:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __bic32 [2024-12-02 15:00:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 15:00:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 15:00:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_ctrl_epint [2024-12-02 15:00:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_ctrl_epint [2024-12-02 15:00:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 15:00:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_en_gsint [2024-12-02 15:00:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_en_gsint [2024-12-02 15:00:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2024-12-02 15:00:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2024-12-02 15:00:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:00:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-12-02 15:00:38,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-12-02 15:00:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 15:00:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 15:00:38,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 15:00:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 15:00:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 15:00:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 15:00:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 15:00:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 15:00:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 15:00:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 15:00:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 15:00:38,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-02 15:00:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-02 15:00:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-02 15:00:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-12-02 15:00:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-12-02 15:00:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-12-02 15:00:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-12-02 15:00:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-12-02 15:00:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-12-02 15:00:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-12-02 15:00:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-12-02 15:00:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2024-12-02 15:00:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2024-12-02 15:00:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_set_ep_maxpacket [2024-12-02 15:00:38,533 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_set_ep_maxpacket [2024-12-02 15:00:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 15:00:38,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 15:00:38,533 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-12-02 15:00:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-12-02 15:00:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_phy_enable [2024-12-02 15:00:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_phy_enable [2024-12-02 15:00:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2024-12-02 15:00:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2024-12-02 15:00:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure kill_all_requests [2024-12-02 15:00:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_all_requests [2024-12-02 15:00:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_remove [2024-12-02 15:00:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_remove [2024-12-02 15:00:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2024-12-02 15:00:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2024-12-02 15:00:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-12-02 15:00:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-12-02 15:00:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure using_dma [2024-12-02 15:00:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure using_dma [2024-12-02 15:00:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-12-02 15:00:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-12-02 15:00:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-12-02 15:00:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-12-02 15:00:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_ep_dequeue [2024-12-02 15:00:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_ep_dequeue [2024-12-02 15:00:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2024-12-02 15:00:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2024-12-02 15:00:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_start_req [2024-12-02 15:00:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_start_req [2024-12-02 15:00:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2024-12-02 15:00:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2024-12-02 15:00:38,534 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2024-12-02 15:00:38,534 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2024-12-02 15:00:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2024-12-02 15:00:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_stall_ep0 [2024-12-02 15:00:38,535 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_stall_ep0 [2024-12-02 15:00:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:00:38,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:00:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-12-02 15:00:38,536 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-12-02 15:00:39,303 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:00:39,306 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:00:39,599 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-02 15:00:49,240 INFO L? ?]: Removed 1969 outVars from TransFormulas that were not future-live. [2024-12-02 15:00:49,241 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:00:49,279 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:00:49,279 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 15:00:49,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:00:49 BoogieIcfgContainer [2024-12-02 15:00:49,280 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:00:49,281 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:00:49,281 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:00:49,285 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:00:49,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:00:35" (1/3) ... [2024-12-02 15:00:49,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f58fc40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:00:49, skipping insertion in model container [2024-12-02 15:00:49,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (2/3) ... [2024-12-02 15:00:49,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f58fc40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:00:49, skipping insertion in model container [2024-12-02 15:00:49,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:00:49" (3/3) ... [2024-12-02 15:00:49,287 INFO L128 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i [2024-12-02 15:00:49,298 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:00:49,301 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i that has 126 procedures, 2368 locations, 1 initial locations, 27 loop locations, and 1 error locations. [2024-12-02 15:00:49,375 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:00:49,385 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;@7be611ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:00:49,385 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 15:00:49,392 INFO L276 IsEmpty]: Start isEmpty. Operand has 2283 states, 1563 states have (on average 1.3160588611644273) internal successors, (2057), 1602 states have internal predecessors, (2057), 616 states have call successors, (616), 104 states have call predecessors, (616), 103 states have return successors, (608), 605 states have call predecessors, (608), 608 states have call successors, (608) [2024-12-02 15:00:49,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 15:00:49,403 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:00:49,404 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:00:49,404 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:00:49,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:00:49,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1800034771, now seen corresponding path program 1 times [2024-12-02 15:00:49,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:00:49,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851644671] [2024-12-02 15:00:49,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:00:49,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:00:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:00:51,771 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 15:00:51,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:00:51,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851644671] [2024-12-02 15:00:51,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851644671] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:00:51,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:00:51,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:00:51,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817158997] [2024-12-02 15:00:51,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:00:51,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:00:51,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:00:51,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:00:51,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:00:51,803 INFO L87 Difference]: Start difference. First operand has 2283 states, 1563 states have (on average 1.3160588611644273) internal successors, (2057), 1602 states have internal predecessors, (2057), 616 states have call successors, (616), 104 states have call predecessors, (616), 103 states have return successors, (608), 605 states have call predecessors, (608), 608 states have call successors, (608) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-12-02 15:00:52,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:00:52,311 INFO L93 Difference]: Finished difference Result 6759 states and 9908 transitions. [2024-12-02 15:00:52,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:00:52,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 80 [2024-12-02 15:00:52,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:00:52,357 INFO L225 Difference]: With dead ends: 6759 [2024-12-02 15:00:52,357 INFO L226 Difference]: Without dead ends: 4440 [2024-12-02 15:00:52,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:00:52,380 INFO L435 NwaCegarLoop]: 3247 mSDtfsCounter, 3173 mSDsluCounter, 3179 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3173 SdHoareTripleChecker+Valid, 6426 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:00:52,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3173 Valid, 6426 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:00:52,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4440 states. [2024-12-02 15:00:52,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4440 to 4435. [2024-12-02 15:00:52,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4435 states, 3042 states have (on average 1.2932281393819856) internal successors, (3934), 3099 states have internal predecessors, (3934), 1191 states have call successors, (1191), 202 states have call predecessors, (1191), 201 states have return successors, (1190), 1183 states have call predecessors, (1190), 1190 states have call successors, (1190) [2024-12-02 15:00:52,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4435 states to 4435 states and 6315 transitions. [2024-12-02 15:00:52,716 INFO L78 Accepts]: Start accepts. Automaton has 4435 states and 6315 transitions. Word has length 80 [2024-12-02 15:00:52,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:00:52,717 INFO L471 AbstractCegarLoop]: Abstraction has 4435 states and 6315 transitions. [2024-12-02 15:00:52,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-12-02 15:00:52,717 INFO L276 IsEmpty]: Start isEmpty. Operand 4435 states and 6315 transitions. [2024-12-02 15:00:52,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-12-02 15:00:52,730 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:00:52,730 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:00:52,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 15:00:52,730 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:00:52,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:00:52,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1304109416, now seen corresponding path program 1 times [2024-12-02 15:00:52,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:00:52,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987689036] [2024-12-02 15:00:52,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:00:52,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:00:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:00:54,824 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2024-12-02 15:00:54,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:00:54,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987689036] [2024-12-02 15:00:54,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987689036] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:00:54,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:00:54,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:00:54,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67496791] [2024-12-02 15:00:54,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:00:54,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:00:54,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:00:54,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:00:54,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:00:54,827 INFO L87 Difference]: Start difference. First operand 4435 states and 6315 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 15:00:54,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:00:54,928 INFO L93 Difference]: Finished difference Result 4440 states and 6321 transitions. [2024-12-02 15:00:54,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:00:54,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 166 [2024-12-02 15:00:54,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:00:54,958 INFO L225 Difference]: With dead ends: 4440 [2024-12-02 15:00:54,958 INFO L226 Difference]: Without dead ends: 4437 [2024-12-02 15:00:54,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:00:54,962 INFO L435 NwaCegarLoop]: 3215 mSDtfsCounter, 0 mSDsluCounter, 3210 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6425 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:00:54,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6425 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:00:54,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4437 states. [2024-12-02 15:00:55,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4437 to 4437. [2024-12-02 15:00:55,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4437 states, 3044 states have (on average 1.2930354796320631) internal successors, (3936), 3101 states have internal predecessors, (3936), 1191 states have call successors, (1191), 202 states have call predecessors, (1191), 201 states have return successors, (1190), 1183 states have call predecessors, (1190), 1190 states have call successors, (1190) [2024-12-02 15:00:55,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4437 states to 4437 states and 6317 transitions. [2024-12-02 15:00:55,177 INFO L78 Accepts]: Start accepts. Automaton has 4437 states and 6317 transitions. Word has length 166 [2024-12-02 15:00:55,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:00:55,177 INFO L471 AbstractCegarLoop]: Abstraction has 4437 states and 6317 transitions. [2024-12-02 15:00:55,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 15:00:55,178 INFO L276 IsEmpty]: Start isEmpty. Operand 4437 states and 6317 transitions. [2024-12-02 15:00:55,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 15:00:55,186 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:00:55,186 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:00:55,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 15:00:55,186 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:00:55,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:00:55,187 INFO L85 PathProgramCache]: Analyzing trace with hash 840456556, now seen corresponding path program 1 times [2024-12-02 15:00:55,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:00:55,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078448927] [2024-12-02 15:00:55,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:00:55,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:00:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:00:57,716 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2024-12-02 15:00:57,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:00:57,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078448927] [2024-12-02 15:00:57,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078448927] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:00:57,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:00:57,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:00:57,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474748042] [2024-12-02 15:00:57,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:00:57,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:00:57,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:00:57,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:00:57,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:00:57,718 INFO L87 Difference]: Start difference. First operand 4437 states and 6317 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 15:00:58,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:00:58,108 INFO L93 Difference]: Finished difference Result 11315 states and 16184 transitions. [2024-12-02 15:00:58,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:00:58,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 168 [2024-12-02 15:00:58,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:00:58,157 INFO L225 Difference]: With dead ends: 11315 [2024-12-02 15:00:58,158 INFO L226 Difference]: Without dead ends: 6913 [2024-12-02 15:00:58,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:00:58,183 INFO L435 NwaCegarLoop]: 4146 mSDtfsCounter, 2431 mSDsluCounter, 6562 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2431 SdHoareTripleChecker+Valid, 10708 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:00:58,183 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2431 Valid, 10708 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:00:58,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6913 states. [2024-12-02 15:00:58,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6913 to 6853. [2024-12-02 15:00:58,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6853 states, 4658 states have (on average 1.2773722627737227) internal successors, (5950), 4755 states have internal predecessors, (5950), 1859 states have call successors, (1859), 342 states have call predecessors, (1859), 335 states have return successors, (1892), 1833 states have call predecessors, (1892), 1858 states have call successors, (1892) [2024-12-02 15:00:58,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6853 states to 6853 states and 9701 transitions. [2024-12-02 15:00:58,544 INFO L78 Accepts]: Start accepts. Automaton has 6853 states and 9701 transitions. Word has length 168 [2024-12-02 15:00:58,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:00:58,545 INFO L471 AbstractCegarLoop]: Abstraction has 6853 states and 9701 transitions. [2024-12-02 15:00:58,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 15:00:58,545 INFO L276 IsEmpty]: Start isEmpty. Operand 6853 states and 9701 transitions. [2024-12-02 15:00:58,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-12-02 15:00:58,558 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:00:58,559 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:00:58,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 15:00:58,559 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:00:58,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:00:58,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1536771374, now seen corresponding path program 1 times [2024-12-02 15:00:58,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:00:58,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113952084] [2024-12-02 15:00:58,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:00:58,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:01:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:01:00,775 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-12-02 15:01:00,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:01:00,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113952084] [2024-12-02 15:01:00,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113952084] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:01:00,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:01:00,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:01:00,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593008728] [2024-12-02 15:01:00,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:01:00,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:01:00,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:01:00,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:01:00,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:01:00,777 INFO L87 Difference]: Start difference. First operand 6853 states and 9701 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 15:01:01,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:01:01,356 INFO L93 Difference]: Finished difference Result 19997 states and 28294 transitions. [2024-12-02 15:01:01,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:01:01,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 210 [2024-12-02 15:01:01,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:01:01,447 INFO L225 Difference]: With dead ends: 19997 [2024-12-02 15:01:01,447 INFO L226 Difference]: Without dead ends: 13179 [2024-12-02 15:01:01,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:01:01,483 INFO L435 NwaCegarLoop]: 5673 mSDtfsCounter, 3094 mSDsluCounter, 3153 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3094 SdHoareTripleChecker+Valid, 8826 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:01:01,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3094 Valid, 8826 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:01:01,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13179 states. [2024-12-02 15:01:02,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13179 to 13174. [2024-12-02 15:01:02,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13174 states, 8953 states have (on average 1.2776722886183403) internal successors, (11439), 9134 states have internal predecessors, (11439), 3564 states have call successors, (3564), 657 states have call predecessors, (3564), 656 states have return successors, (3629), 3534 states have call predecessors, (3629), 3563 states have call successors, (3629) [2024-12-02 15:01:02,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13174 states to 13174 states and 18632 transitions. [2024-12-02 15:01:02,263 INFO L78 Accepts]: Start accepts. Automaton has 13174 states and 18632 transitions. Word has length 210 [2024-12-02 15:01:02,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:01:02,264 INFO L471 AbstractCegarLoop]: Abstraction has 13174 states and 18632 transitions. [2024-12-02 15:01:02,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 15:01:02,265 INFO L276 IsEmpty]: Start isEmpty. Operand 13174 states and 18632 transitions. [2024-12-02 15:01:02,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-12-02 15:01:02,295 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:01:02,295 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:01:02,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 15:01:02,295 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:01:02,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:01:02,296 INFO L85 PathProgramCache]: Analyzing trace with hash 641906847, now seen corresponding path program 1 times [2024-12-02 15:01:02,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:01:02,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781338098] [2024-12-02 15:01:02,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:01:02,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:01:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:01:04,257 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-12-02 15:01:04,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:01:04,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781338098] [2024-12-02 15:01:04,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781338098] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:01:04,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:01:04,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:01:04,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713378301] [2024-12-02 15:01:04,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:01:04,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:01:04,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:01:04,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:01:04,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:01:04,259 INFO L87 Difference]: Start difference. First operand 13174 states and 18632 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 15:01:04,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:01:04,981 INFO L93 Difference]: Finished difference Result 36302 states and 51350 transitions. [2024-12-02 15:01:04,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:01:04,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 220 [2024-12-02 15:01:04,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:01:05,121 INFO L225 Difference]: With dead ends: 36302 [2024-12-02 15:01:05,121 INFO L226 Difference]: Without dead ends: 23172 [2024-12-02 15:01:05,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:01:05,159 INFO L435 NwaCegarLoop]: 3337 mSDtfsCounter, 3139 mSDsluCounter, 3156 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3139 SdHoareTripleChecker+Valid, 6493 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:01:05,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3139 Valid, 6493 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:01:05,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23172 states. [2024-12-02 15:01:05,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23172 to 23169. [2024-12-02 15:01:05,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23169 states, 15761 states have (on average 1.2785990736628388) internal successors, (20152), 16080 states have internal predecessors, (20152), 6251 states have call successors, (6251), 1160 states have call predecessors, (6251), 1156 states have return successors, (6366), 6195 states have call predecessors, (6366), 6250 states have call successors, (6366) [2024-12-02 15:01:05,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23169 states to 23169 states and 32769 transitions. [2024-12-02 15:01:05,998 INFO L78 Accepts]: Start accepts. Automaton has 23169 states and 32769 transitions. Word has length 220 [2024-12-02 15:01:05,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:01:05,998 INFO L471 AbstractCegarLoop]: Abstraction has 23169 states and 32769 transitions. [2024-12-02 15:01:05,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 15:01:05,998 INFO L276 IsEmpty]: Start isEmpty. Operand 23169 states and 32769 transitions. [2024-12-02 15:01:06,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-12-02 15:01:06,025 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:01:06,026 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:01:06,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 15:01:06,026 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:01:06,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:01:06,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1223358869, now seen corresponding path program 1 times [2024-12-02 15:01:06,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:01:06,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003364636] [2024-12-02 15:01:06,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:01:06,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:01:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:01:08,028 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-12-02 15:01:08,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:01:08,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003364636] [2024-12-02 15:01:08,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003364636] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:01:08,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:01:08,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:01:08,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509331694] [2024-12-02 15:01:08,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:01:08,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:01:08,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:01:08,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:01:08,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:01:08,031 INFO L87 Difference]: Start difference. First operand 23169 states and 32769 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 15:01:12,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:01:12,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:01:12,708 INFO L93 Difference]: Finished difference Result 46283 states and 65472 transitions. [2024-12-02 15:01:12,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:01:12,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 231 [2024-12-02 15:01:12,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:01:12,809 INFO L225 Difference]: With dead ends: 46283 [2024-12-02 15:01:12,809 INFO L226 Difference]: Without dead ends: 23166 [2024-12-02 15:01:12,874 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:01:12,875 INFO L435 NwaCegarLoop]: 3216 mSDtfsCounter, 0 mSDsluCounter, 3211 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6427 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:01:12,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6427 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 15:01:12,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23166 states. [2024-12-02 15:01:13,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23166 to 23156. [2024-12-02 15:01:13,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23156 states, 15748 states have (on average 1.2785750571501142) internal successors, (20135), 16069 states have internal predecessors, (20135), 6251 states have call successors, (6251), 1160 states have call predecessors, (6251), 1156 states have return successors, (6366), 6193 states have call predecessors, (6366), 6250 states have call successors, (6366) [2024-12-02 15:01:13,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23156 states to 23156 states and 32752 transitions. [2024-12-02 15:01:13,782 INFO L78 Accepts]: Start accepts. Automaton has 23156 states and 32752 transitions. Word has length 231 [2024-12-02 15:01:13,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:01:13,783 INFO L471 AbstractCegarLoop]: Abstraction has 23156 states and 32752 transitions. [2024-12-02 15:01:13,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 15:01:13,783 INFO L276 IsEmpty]: Start isEmpty. Operand 23156 states and 32752 transitions. [2024-12-02 15:01:13,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-12-02 15:01:13,808 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:01:13,808 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:01:13,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 15:01:13,808 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:01:13,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:01:13,809 INFO L85 PathProgramCache]: Analyzing trace with hash 700036510, now seen corresponding path program 1 times [2024-12-02 15:01:13,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:01:13,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734072373] [2024-12-02 15:01:13,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:01:13,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:01:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:01:17,575 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2024-12-02 15:01:17,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:01:17,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734072373] [2024-12-02 15:01:17,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734072373] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:01:17,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:01:17,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:01:17,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394392562] [2024-12-02 15:01:17,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:01:17,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:01:17,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:01:17,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:01:17,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:01:17,577 INFO L87 Difference]: Start difference. First operand 23156 states and 32752 transitions. Second operand has 6 states, 5 states have (on average 29.2) internal successors, (146), 6 states have internal predecessors, (146), 4 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-12-02 15:01:21,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:01:25,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:01:29,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:01:29,238 INFO L93 Difference]: Finished difference Result 40971 states and 57994 transitions. [2024-12-02 15:01:29,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:01:29,239 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 29.2) internal successors, (146), 6 states have internal predecessors, (146), 4 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 294 [2024-12-02 15:01:29,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:01:29,328 INFO L225 Difference]: With dead ends: 40971 [2024-12-02 15:01:29,328 INFO L226 Difference]: Without dead ends: 17871 [2024-12-02 15:01:29,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:01:29,406 INFO L435 NwaCegarLoop]: 2694 mSDtfsCounter, 11 mSDsluCounter, 10157 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 12851 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2024-12-02 15:01:29,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 12851 Invalid, 631 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 628 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2024-12-02 15:01:29,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17871 states. [2024-12-02 15:01:30,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17871 to 17871. [2024-12-02 15:01:30,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17871 states, 12243 states have (on average 1.276321163113616) internal successors, (15626), 12487 states have internal predecessors, (15626), 4676 states have call successors, (4676), 964 states have call predecessors, (4676), 951 states have return successors, (4755), 4625 states have call predecessors, (4755), 4675 states have call successors, (4755) [2024-12-02 15:01:30,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17871 states to 17871 states and 25057 transitions. [2024-12-02 15:01:30,150 INFO L78 Accepts]: Start accepts. Automaton has 17871 states and 25057 transitions. Word has length 294 [2024-12-02 15:01:30,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:01:30,150 INFO L471 AbstractCegarLoop]: Abstraction has 17871 states and 25057 transitions. [2024-12-02 15:01:30,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 29.2) internal successors, (146), 6 states have internal predecessors, (146), 4 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-12-02 15:01:30,150 INFO L276 IsEmpty]: Start isEmpty. Operand 17871 states and 25057 transitions. [2024-12-02 15:01:30,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-12-02 15:01:30,188 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:01:30,189 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 8, 8, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:01:30,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 15:01:30,189 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:01:30,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:01:30,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1284093267, now seen corresponding path program 1 times [2024-12-02 15:01:30,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:01:30,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285260461] [2024-12-02 15:01:30,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:01:30,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:01:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:01:33,095 INFO L134 CoverageAnalysis]: Checked inductivity of 940 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 929 trivial. 0 not checked. [2024-12-02 15:01:33,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:01:33,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285260461] [2024-12-02 15:01:33,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285260461] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:01:33,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961475770] [2024-12-02 15:01:33,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:01:33,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:01:33,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:01:33,098 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:01:33,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 15:01:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:01:36,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 6871 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 15:01:36,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:01:36,704 INFO L134 CoverageAnalysis]: Checked inductivity of 940 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2024-12-02 15:01:36,704 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:01:36,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961475770] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:01:36,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:01:36,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-12-02 15:01:36,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029189591] [2024-12-02 15:01:36,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:01:36,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:01:36,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:01:36,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:01:36,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:01:36,707 INFO L87 Difference]: Start difference. First operand 17871 states and 25057 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 3 states have call successors, (71), 3 states have call predecessors, (71), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2024-12-02 15:01:37,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:01:37,324 INFO L93 Difference]: Finished difference Result 46275 states and 64873 transitions. [2024-12-02 15:01:37,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:01:37,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 3 states have call successors, (71), 3 states have call predecessors, (71), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 479 [2024-12-02 15:01:37,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:01:37,435 INFO L225 Difference]: With dead ends: 46275 [2024-12-02 15:01:37,436 INFO L226 Difference]: Without dead ends: 28460 [2024-12-02 15:01:37,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:01:37,490 INFO L435 NwaCegarLoop]: 3122 mSDtfsCounter, 2593 mSDsluCounter, 2579 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2593 SdHoareTripleChecker+Valid, 5701 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:01:37,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2593 Valid, 5701 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:01:37,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28460 states. [2024-12-02 15:01:38,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28460 to 28453. [2024-12-02 15:01:38,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28453 states, 19469 states have (on average 1.2742308284965844) internal successors, (24808), 19847 states have internal predecessors, (24808), 7462 states have call successors, (7462), 1534 states have call predecessors, (7462), 1521 states have return successors, (7591), 7399 states have call predecessors, (7591), 7461 states have call successors, (7591) [2024-12-02 15:01:38,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28453 states to 28453 states and 39861 transitions. [2024-12-02 15:01:38,350 INFO L78 Accepts]: Start accepts. Automaton has 28453 states and 39861 transitions. Word has length 479 [2024-12-02 15:01:38,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:01:38,350 INFO L471 AbstractCegarLoop]: Abstraction has 28453 states and 39861 transitions. [2024-12-02 15:01:38,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 3 states have call successors, (71), 3 states have call predecessors, (71), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2024-12-02 15:01:38,350 INFO L276 IsEmpty]: Start isEmpty. Operand 28453 states and 39861 transitions. [2024-12-02 15:01:38,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2024-12-02 15:01:38,393 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:01:38,393 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 9, 9, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:01:38,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 15:01:38,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:01:38,594 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:01:38,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:01:38,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1405283453, now seen corresponding path program 1 times [2024-12-02 15:01:38,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:01:38,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080017799] [2024-12-02 15:01:38,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:01:38,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:01:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:01:40,513 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 965 trivial. 0 not checked. [2024-12-02 15:01:40,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:01:40,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080017799] [2024-12-02 15:01:40,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080017799] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:01:40,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:01:40,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:01:40,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821631923] [2024-12-02 15:01:40,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:01:40,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:01:40,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:01:40,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:01:40,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:01:40,515 INFO L87 Difference]: Start difference. First operand 28453 states and 39861 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2024-12-02 15:01:41,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:01:41,365 INFO L93 Difference]: Finished difference Result 56870 states and 80099 transitions. [2024-12-02 15:01:41,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:01:41,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 484 [2024-12-02 15:01:41,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:01:41,480 INFO L225 Difference]: With dead ends: 56870 [2024-12-02 15:01:41,480 INFO L226 Difference]: Without dead ends: 28473 [2024-12-02 15:01:41,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:01:41,559 INFO L435 NwaCegarLoop]: 2700 mSDtfsCounter, 0 mSDsluCounter, 2695 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5395 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:01:41,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5395 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:01:41,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28473 states. [2024-12-02 15:01:42,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28473 to 28473. [2024-12-02 15:01:42,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28473 states, 19489 states have (on average 1.2739494073579969) internal successors, (24828), 19867 states have internal predecessors, (24828), 7462 states have call successors, (7462), 1534 states have call predecessors, (7462), 1521 states have return successors, (7591), 7399 states have call predecessors, (7591), 7461 states have call successors, (7591) [2024-12-02 15:01:42,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28473 states to 28473 states and 39881 transitions. [2024-12-02 15:01:42,408 INFO L78 Accepts]: Start accepts. Automaton has 28473 states and 39881 transitions. Word has length 484 [2024-12-02 15:01:42,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:01:42,409 INFO L471 AbstractCegarLoop]: Abstraction has 28473 states and 39881 transitions. [2024-12-02 15:01:42,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2024-12-02 15:01:42,409 INFO L276 IsEmpty]: Start isEmpty. Operand 28473 states and 39881 transitions. [2024-12-02 15:01:42,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2024-12-02 15:01:42,475 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:01:42,475 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 9, 9, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:01:42,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 15:01:42,475 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:01:42,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:01:42,476 INFO L85 PathProgramCache]: Analyzing trace with hash -643220368, now seen corresponding path program 1 times [2024-12-02 15:01:42,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:01:42,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103791462] [2024-12-02 15:01:42,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:01:42,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:01:44,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:01:44,693 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 965 trivial. 0 not checked. [2024-12-02 15:01:44,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:01:44,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103791462] [2024-12-02 15:01:44,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103791462] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:01:44,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:01:44,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:01:44,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725572814] [2024-12-02 15:01:44,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:01:44,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:01:44,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:01:44,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:01:44,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:01:44,695 INFO L87 Difference]: Start difference. First operand 28473 states and 39881 transitions. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 3 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2024-12-02 15:01:45,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:01:45,272 INFO L93 Difference]: Finished difference Result 57070 states and 80359 transitions. [2024-12-02 15:01:45,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:01:45,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 3 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) Word has length 485 [2024-12-02 15:01:45,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:01:45,383 INFO L225 Difference]: With dead ends: 57070 [2024-12-02 15:01:45,383 INFO L226 Difference]: Without dead ends: 28653 [2024-12-02 15:01:45,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:01:45,597 INFO L435 NwaCegarLoop]: 2698 mSDtfsCounter, 2 mSDsluCounter, 5391 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 8089 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:01:45,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 8089 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:01:45,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28653 states. [2024-12-02 15:01:46,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28653 to 28573. [2024-12-02 15:01:46,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28573 states, 19569 states have (on average 1.2738514998211456) internal successors, (24928), 19947 states have internal predecessors, (24928), 7482 states have call successors, (7482), 1534 states have call predecessors, (7482), 1521 states have return successors, (7611), 7419 states have call predecessors, (7611), 7481 states have call successors, (7611) [2024-12-02 15:01:46,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28573 states to 28573 states and 40021 transitions. [2024-12-02 15:01:46,288 INFO L78 Accepts]: Start accepts. Automaton has 28573 states and 40021 transitions. Word has length 485 [2024-12-02 15:01:46,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:01:46,289 INFO L471 AbstractCegarLoop]: Abstraction has 28573 states and 40021 transitions. [2024-12-02 15:01:46,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 3 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2024-12-02 15:01:46,289 INFO L276 IsEmpty]: Start isEmpty. Operand 28573 states and 40021 transitions. [2024-12-02 15:01:46,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2024-12-02 15:01:46,334 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:01:46,334 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 9, 9, 6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:01:46,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 15:01:46,335 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:01:46,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:01:46,335 INFO L85 PathProgramCache]: Analyzing trace with hash -2042952148, now seen corresponding path program 1 times [2024-12-02 15:01:46,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:01:46,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627829731] [2024-12-02 15:01:46,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:01:46,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:01:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:01:48,182 INFO L134 CoverageAnalysis]: Checked inductivity of 989 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 989 trivial. 0 not checked. [2024-12-02 15:01:48,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:01:48,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627829731] [2024-12-02 15:01:48,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627829731] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:01:48,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:01:48,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:01:48,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409756593] [2024-12-02 15:01:48,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:01:48,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:01:48,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:01:48,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:01:48,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:01:48,184 INFO L87 Difference]: Start difference. First operand 28573 states and 40021 transitions. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 3 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2024-12-02 15:01:48,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:01:48,770 INFO L93 Difference]: Finished difference Result 57190 states and 80519 transitions. [2024-12-02 15:01:48,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:01:48,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 3 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) Word has length 491 [2024-12-02 15:01:48,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:01:48,880 INFO L225 Difference]: With dead ends: 57190 [2024-12-02 15:01:48,880 INFO L226 Difference]: Without dead ends: 28673 [2024-12-02 15:01:48,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:01:48,959 INFO L435 NwaCegarLoop]: 2698 mSDtfsCounter, 3 mSDsluCounter, 5391 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8089 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:01:48,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 8089 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:01:48,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28673 states. [2024-12-02 15:01:49,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28673 to 28653. [2024-12-02 15:01:49,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28653 states, 19629 states have (on average 1.2730144174435785) internal successors, (24988), 20007 states have internal predecessors, (24988), 7502 states have call successors, (7502), 1534 states have call predecessors, (7502), 1521 states have return successors, (7631), 7439 states have call predecessors, (7631), 7501 states have call successors, (7631) [2024-12-02 15:01:49,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28653 states to 28653 states and 40121 transitions. [2024-12-02 15:01:49,787 INFO L78 Accepts]: Start accepts. Automaton has 28653 states and 40121 transitions. Word has length 491 [2024-12-02 15:01:49,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:01:49,787 INFO L471 AbstractCegarLoop]: Abstraction has 28653 states and 40121 transitions. [2024-12-02 15:01:49,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 3 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2024-12-02 15:01:49,787 INFO L276 IsEmpty]: Start isEmpty. Operand 28653 states and 40121 transitions. [2024-12-02 15:01:49,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2024-12-02 15:01:49,829 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:01:49,830 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 9, 9, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:01:49,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 15:01:49,830 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:01:49,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:01:49,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1941553003, now seen corresponding path program 1 times [2024-12-02 15:01:49,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:01:49,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448930493] [2024-12-02 15:01:49,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:01:49,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:01:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:01:52,332 INFO L134 CoverageAnalysis]: Checked inductivity of 985 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 980 trivial. 0 not checked. [2024-12-02 15:01:52,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:01:52,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448930493] [2024-12-02 15:01:52,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448930493] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:01:52,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867788576] [2024-12-02 15:01:52,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:01:52,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:01:52,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:01:52,335 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:01:52,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 15:01:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:01:55,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 6968 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:01:55,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:01:55,591 INFO L134 CoverageAnalysis]: Checked inductivity of 985 backedges. 99 proven. 5 refuted. 0 times theorem prover too weak. 881 trivial. 0 not checked. [2024-12-02 15:01:55,591 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:01:56,893 INFO L134 CoverageAnalysis]: Checked inductivity of 985 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 980 trivial. 0 not checked. [2024-12-02 15:01:56,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867788576] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:01:56,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:01:56,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-12-02 15:01:56,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697427771] [2024-12-02 15:01:56,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:01:56,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 15:01:56,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:01:56,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 15:01:56,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:01:56,896 INFO L87 Difference]: Start difference. First operand 28653 states and 40121 transitions. Second operand has 8 states, 8 states have (on average 32.375) internal successors, (259), 8 states have internal predecessors, (259), 6 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (89), 6 states have call predecessors, (89), 6 states have call successors, (89) [2024-12-02 15:01:57,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:01:57,906 INFO L93 Difference]: Finished difference Result 58530 states and 82479 transitions. [2024-12-02 15:01:57,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 15:01:57,907 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 32.375) internal successors, (259), 8 states have internal predecessors, (259), 6 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (89), 6 states have call predecessors, (89), 6 states have call successors, (89) Word has length 493 [2024-12-02 15:01:57,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:01:58,009 INFO L225 Difference]: With dead ends: 58530 [2024-12-02 15:01:58,009 INFO L226 Difference]: Without dead ends: 29933 [2024-12-02 15:01:58,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 992 GetRequests, 983 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:01:58,079 INFO L435 NwaCegarLoop]: 2698 mSDtfsCounter, 45 mSDsluCounter, 13481 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 16179 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:01:58,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 16179 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:01:58,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29933 states. [2024-12-02 15:01:58,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29933 to 28953. [2024-12-02 15:01:58,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28953 states, 19869 states have (on average 1.2727364235744123) internal successors, (25288), 20247 states have internal predecessors, (25288), 7562 states have call successors, (7562), 1534 states have call predecessors, (7562), 1521 states have return successors, (7691), 7499 states have call predecessors, (7691), 7561 states have call successors, (7691) [2024-12-02 15:01:58,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28953 states to 28953 states and 40541 transitions. [2024-12-02 15:01:58,833 INFO L78 Accepts]: Start accepts. Automaton has 28953 states and 40541 transitions. Word has length 493 [2024-12-02 15:01:58,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:01:58,834 INFO L471 AbstractCegarLoop]: Abstraction has 28953 states and 40541 transitions. [2024-12-02 15:01:58,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 32.375) internal successors, (259), 8 states have internal predecessors, (259), 6 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (89), 6 states have call predecessors, (89), 6 states have call successors, (89) [2024-12-02 15:01:58,834 INFO L276 IsEmpty]: Start isEmpty. Operand 28953 states and 40541 transitions. [2024-12-02 15:01:58,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2024-12-02 15:01:58,878 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:01:58,878 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 10, 10, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:01:58,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 15:01:59,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 15:01:59,079 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:01:59,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:01:59,079 INFO L85 PathProgramCache]: Analyzing trace with hash 578173221, now seen corresponding path program 1 times [2024-12-02 15:01:59,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:01:59,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219108454] [2024-12-02 15:01:59,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:01:59,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:02:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:02,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2024-12-02 15:02:02,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:02:02,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219108454] [2024-12-02 15:02:02,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219108454] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:02:02,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359517119] [2024-12-02 15:02:02,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:02:02,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:02:02,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:02:02,330 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:02:02,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 15:02:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:05,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 7017 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 15:02:05,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:02:05,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1007 trivial. 0 not checked. [2024-12-02 15:02:05,842 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:02:05,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359517119] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:02:05,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:02:05,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-12-02 15:02:05,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329277443] [2024-12-02 15:02:05,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:02:05,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:02:05,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:02:05,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:02:05,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:02:05,844 INFO L87 Difference]: Start difference. First operand 28953 states and 40541 transitions. Second operand has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2024-12-02 15:02:06,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:02:06,476 INFO L93 Difference]: Finished difference Result 57890 states and 81489 transitions. [2024-12-02 15:02:06,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:02:06,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 495 [2024-12-02 15:02:06,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:02:06,592 INFO L225 Difference]: With dead ends: 57890 [2024-12-02 15:02:06,592 INFO L226 Difference]: Without dead ends: 28993 [2024-12-02 15:02:06,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 494 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:02:06,668 INFO L435 NwaCegarLoop]: 2698 mSDtfsCounter, 0 mSDsluCounter, 8082 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10780 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:02:06,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10780 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:02:06,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28993 states. [2024-12-02 15:02:07,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28993 to 28983. [2024-12-02 15:02:07,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28983 states, 19899 states have (on average 1.2723252424744962) internal successors, (25318), 20277 states have internal predecessors, (25318), 7562 states have call successors, (7562), 1534 states have call predecessors, (7562), 1521 states have return successors, (7691), 7499 states have call predecessors, (7691), 7561 states have call successors, (7691) [2024-12-02 15:02:07,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28983 states to 28983 states and 40571 transitions. [2024-12-02 15:02:07,424 INFO L78 Accepts]: Start accepts. Automaton has 28983 states and 40571 transitions. Word has length 495 [2024-12-02 15:02:07,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:02:07,425 INFO L471 AbstractCegarLoop]: Abstraction has 28983 states and 40571 transitions. [2024-12-02 15:02:07,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2024-12-02 15:02:07,425 INFO L276 IsEmpty]: Start isEmpty. Operand 28983 states and 40571 transitions. [2024-12-02 15:02:07,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2024-12-02 15:02:07,471 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:02:07,471 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 10, 10, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:02:07,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 15:02:07,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:02:07,671 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:02:07,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:02:07,672 INFO L85 PathProgramCache]: Analyzing trace with hash 793364233, now seen corresponding path program 1 times [2024-12-02 15:02:07,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:02:07,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468654501] [2024-12-02 15:02:07,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:02:07,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:02:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:11,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2024-12-02 15:02:11,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:02:11,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468654501] [2024-12-02 15:02:11,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468654501] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:02:11,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826967550] [2024-12-02 15:02:11,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:02:11,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:02:11,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:02:11,054 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:02:11,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 15:02:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:14,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 7018 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 15:02:14,403 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:02:14,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 952 trivial. 0 not checked. [2024-12-02 15:02:14,462 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:02:14,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826967550] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:02:14,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:02:14,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-12-02 15:02:14,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549854509] [2024-12-02 15:02:14,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:02:14,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:02:14,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:02:14,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:02:14,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:02:14,464 INFO L87 Difference]: Start difference. First operand 28983 states and 40571 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2024-12-02 15:02:14,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:02:14,962 INFO L93 Difference]: Finished difference Result 57910 states and 81399 transitions. [2024-12-02 15:02:14,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:02:14,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 496 [2024-12-02 15:02:14,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:02:15,090 INFO L225 Difference]: With dead ends: 57910 [2024-12-02 15:02:15,090 INFO L226 Difference]: Without dead ends: 28983 [2024-12-02 15:02:15,164 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:02:15,165 INFO L435 NwaCegarLoop]: 2698 mSDtfsCounter, 2 mSDsluCounter, 2695 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5393 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:02:15,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5393 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:02:15,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28983 states. [2024-12-02 15:02:15,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28983 to 28983. [2024-12-02 15:02:15,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28983 states, 19899 states have (on average 1.2716216895321373) internal successors, (25304), 20277 states have internal predecessors, (25304), 7562 states have call successors, (7562), 1534 states have call predecessors, (7562), 1521 states have return successors, (7691), 7499 states have call predecessors, (7691), 7561 states have call successors, (7691) [2024-12-02 15:02:15,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28983 states to 28983 states and 40557 transitions. [2024-12-02 15:02:16,006 INFO L78 Accepts]: Start accepts. Automaton has 28983 states and 40557 transitions. Word has length 496 [2024-12-02 15:02:16,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:02:16,007 INFO L471 AbstractCegarLoop]: Abstraction has 28983 states and 40557 transitions. [2024-12-02 15:02:16,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2024-12-02 15:02:16,007 INFO L276 IsEmpty]: Start isEmpty. Operand 28983 states and 40557 transitions. [2024-12-02 15:02:16,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2024-12-02 15:02:16,050 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:02:16,051 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 10, 10, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:02:16,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 15:02:16,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:02:16,251 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:02:16,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:02:16,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1042298572, now seen corresponding path program 1 times [2024-12-02 15:02:16,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:02:16,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695181306] [2024-12-02 15:02:16,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:02:16,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:02:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:19,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 982 trivial. 0 not checked. [2024-12-02 15:02:19,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:02:19,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695181306] [2024-12-02 15:02:19,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695181306] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:02:19,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212910920] [2024-12-02 15:02:19,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:02:19,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:02:19,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:02:19,370 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:02:19,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 15:02:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:22,880 INFO L256 TraceCheckSpWp]: Trace formula consists of 7021 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 15:02:22,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:02:22,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 919 trivial. 0 not checked. [2024-12-02 15:02:22,938 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:02:22,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212910920] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:02:22,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:02:22,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-12-02 15:02:22,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749523414] [2024-12-02 15:02:22,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:02:22,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:02:22,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:02:22,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:02:22,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:02:22,940 INFO L87 Difference]: Start difference. First operand 28983 states and 40557 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2024-12-02 15:02:23,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:02:23,458 INFO L93 Difference]: Finished difference Result 57938 states and 81413 transitions. [2024-12-02 15:02:23,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:02:23,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 498 [2024-12-02 15:02:23,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:02:23,583 INFO L225 Difference]: With dead ends: 57938 [2024-12-02 15:02:23,583 INFO L226 Difference]: Without dead ends: 29011 [2024-12-02 15:02:23,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:02:23,657 INFO L435 NwaCegarLoop]: 2698 mSDtfsCounter, 1 mSDsluCounter, 2695 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5393 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:02:23,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 5393 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:02:23,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29011 states. [2024-12-02 15:02:24,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29011 to 28997. [2024-12-02 15:02:24,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28997 states, 19913 states have (on average 1.2714307236478681) internal successors, (25318), 20291 states have internal predecessors, (25318), 7562 states have call successors, (7562), 1534 states have call predecessors, (7562), 1521 states have return successors, (7691), 7499 states have call predecessors, (7691), 7561 states have call successors, (7691) [2024-12-02 15:02:24,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28997 states to 28997 states and 40571 transitions. [2024-12-02 15:02:24,420 INFO L78 Accepts]: Start accepts. Automaton has 28997 states and 40571 transitions. Word has length 498 [2024-12-02 15:02:24,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:02:24,420 INFO L471 AbstractCegarLoop]: Abstraction has 28997 states and 40571 transitions. [2024-12-02 15:02:24,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2024-12-02 15:02:24,420 INFO L276 IsEmpty]: Start isEmpty. Operand 28997 states and 40571 transitions. [2024-12-02 15:02:24,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2024-12-02 15:02:24,465 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:02:24,465 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 10, 10, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:02:24,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 15:02:24,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:02:24,666 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:02:24,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:02:24,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1705084848, now seen corresponding path program 1 times [2024-12-02 15:02:24,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:02:24,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640288495] [2024-12-02 15:02:24,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:02:24,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:02:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:27,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 983 trivial. 0 not checked. [2024-12-02 15:02:27,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:02:27,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640288495] [2024-12-02 15:02:27,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640288495] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:02:27,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689909865] [2024-12-02 15:02:27,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:02:27,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:02:27,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:02:27,571 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:02:27,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 15:02:31,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:31,189 INFO L256 TraceCheckSpWp]: Trace formula consists of 7040 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 15:02:31,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:02:31,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2024-12-02 15:02:31,369 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:02:31,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689909865] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:02:31,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:02:31,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2024-12-02 15:02:31,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453754828] [2024-12-02 15:02:31,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:02:31,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:02:31,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:02:31,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:02:31,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:02:31,371 INFO L87 Difference]: Start difference. First operand 28997 states and 40571 transitions. Second operand has 5 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 3 states have call successors, (73), 3 states have call predecessors, (73), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2024-12-02 15:02:32,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:02:32,007 INFO L93 Difference]: Finished difference Result 58109 states and 81600 transitions. [2024-12-02 15:02:32,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:02:32,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 3 states have call successors, (73), 3 states have call predecessors, (73), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) Word has length 500 [2024-12-02 15:02:32,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:02:32,138 INFO L225 Difference]: With dead ends: 58109 [2024-12-02 15:02:32,138 INFO L226 Difference]: Without dead ends: 29168 [2024-12-02 15:02:32,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:02:32,213 INFO L435 NwaCegarLoop]: 2698 mSDtfsCounter, 16 mSDsluCounter, 8085 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 10783 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:02:32,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 10783 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:02:32,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29168 states. [2024-12-02 15:02:32,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29168 to 29147. [2024-12-02 15:02:32,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29147 states, 20043 states have (on average 1.2706680636631242) internal successors, (25468), 20421 states have internal predecessors, (25468), 7562 states have call successors, (7562), 1554 states have call predecessors, (7562), 1541 states have return successors, (7691), 7499 states have call predecessors, (7691), 7561 states have call successors, (7691) [2024-12-02 15:02:33,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29147 states to 29147 states and 40721 transitions. [2024-12-02 15:02:33,154 INFO L78 Accepts]: Start accepts. Automaton has 29147 states and 40721 transitions. Word has length 500 [2024-12-02 15:02:33,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:02:33,155 INFO L471 AbstractCegarLoop]: Abstraction has 29147 states and 40721 transitions. [2024-12-02 15:02:33,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 3 states have call successors, (73), 3 states have call predecessors, (73), 1 states have return successors, (66), 1 states have call predecessors, (66), 1 states have call successors, (66) [2024-12-02 15:02:33,155 INFO L276 IsEmpty]: Start isEmpty. Operand 29147 states and 40721 transitions. [2024-12-02 15:02:33,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2024-12-02 15:02:33,195 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:02:33,195 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 10, 10, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:02:33,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 15:02:33,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:02:33,396 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:02:33,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:02:33,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1265388607, now seen corresponding path program 1 times [2024-12-02 15:02:33,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:02:33,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900709855] [2024-12-02 15:02:33,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:02:33,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:02:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:36,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 984 trivial. 0 not checked. [2024-12-02 15:02:36,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:02:36,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900709855] [2024-12-02 15:02:36,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900709855] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:02:36,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917991112] [2024-12-02 15:02:36,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:02:36,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:02:36,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:02:36,488 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:02:36,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 15:02:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:40,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 7039 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 15:02:40,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:02:40,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 981 trivial. 0 not checked. [2024-12-02 15:02:40,476 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:02:40,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917991112] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:02:40,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:02:40,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-12-02 15:02:40,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741924210] [2024-12-02 15:02:40,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:02:40,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:02:40,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:02:40,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:02:40,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:02:40,478 INFO L87 Difference]: Start difference. First operand 29147 states and 40721 transitions. Second operand has 6 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 3 states have call successors, (73), 2 states have call predecessors, (73), 3 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2024-12-02 15:02:42,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:02:42,167 INFO L93 Difference]: Finished difference Result 58238 states and 81639 transitions. [2024-12-02 15:02:42,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:02:42,168 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 3 states have call successors, (73), 2 states have call predecessors, (73), 3 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) Word has length 501 [2024-12-02 15:02:42,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:02:42,303 INFO L225 Difference]: With dead ends: 58238 [2024-12-02 15:02:42,303 INFO L226 Difference]: Without dead ends: 29147 [2024-12-02 15:02:42,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:02:42,376 INFO L435 NwaCegarLoop]: 2646 mSDtfsCounter, 0 mSDsluCounter, 10529 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 13175 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:02:42,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 13175 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 15:02:42,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29147 states. [2024-12-02 15:02:42,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29147 to 29147. [2024-12-02 15:02:43,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29147 states, 20043 states have (on average 1.2696702090505414) internal successors, (25448), 20421 states have internal predecessors, (25448), 7562 states have call successors, (7562), 1554 states have call predecessors, (7562), 1541 states have return successors, (7691), 7499 states have call predecessors, (7691), 7561 states have call successors, (7691) [2024-12-02 15:02:43,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29147 states to 29147 states and 40701 transitions. [2024-12-02 15:02:43,142 INFO L78 Accepts]: Start accepts. Automaton has 29147 states and 40701 transitions. Word has length 501 [2024-12-02 15:02:43,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:02:43,142 INFO L471 AbstractCegarLoop]: Abstraction has 29147 states and 40701 transitions. [2024-12-02 15:02:43,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 3 states have call successors, (73), 2 states have call predecessors, (73), 3 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2024-12-02 15:02:43,143 INFO L276 IsEmpty]: Start isEmpty. Operand 29147 states and 40701 transitions. [2024-12-02 15:02:43,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2024-12-02 15:02:43,188 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:02:43,188 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 10, 10, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:02:43,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 15:02:43,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:02:43,388 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:02:43,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:02:43,389 INFO L85 PathProgramCache]: Analyzing trace with hash 615327202, now seen corresponding path program 1 times [2024-12-02 15:02:43,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:02:43,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450448405] [2024-12-02 15:02:43,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:02:43,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:02:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:46,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 984 trivial. 0 not checked. [2024-12-02 15:02:46,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:02:46,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450448405] [2024-12-02 15:02:46,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450448405] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:02:46,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370886021] [2024-12-02 15:02:46,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:02:46,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:02:46,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:02:46,185 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:02:46,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 15:02:49,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:49,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 7075 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 15:02:49,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:02:50,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 92 proven. 8 refuted. 0 times theorem prover too weak. 908 trivial. 0 not checked. [2024-12-02 15:02:50,289 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:02:51,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 984 trivial. 0 not checked. [2024-12-02 15:02:51,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370886021] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:02:51,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:02:51,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 6] total 14 [2024-12-02 15:02:51,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787538005] [2024-12-02 15:02:51,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:02:51,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 15:02:51,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:02:51,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 15:02:51,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-12-02 15:02:51,787 INFO L87 Difference]: Start difference. First operand 29147 states and 40701 transitions. Second operand has 14 states, 11 states have (on average 32.18181818181818) internal successors, (354), 11 states have internal predecessors, (354), 5 states have call successors, (120), 2 states have call predecessors, (120), 5 states have return successors, (111), 5 states have call predecessors, (111), 5 states have call successors, (111) [2024-12-02 15:02:54,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:02:54,584 INFO L93 Difference]: Finished difference Result 58238 states and 81659 transitions. [2024-12-02 15:02:54,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 15:02:54,585 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 32.18181818181818) internal successors, (354), 11 states have internal predecessors, (354), 5 states have call successors, (120), 2 states have call predecessors, (120), 5 states have return successors, (111), 5 states have call predecessors, (111), 5 states have call successors, (111) Word has length 506 [2024-12-02 15:02:54,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:02:54,722 INFO L225 Difference]: With dead ends: 58238 [2024-12-02 15:02:54,722 INFO L226 Difference]: Without dead ends: 29147 [2024-12-02 15:02:54,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1018 GetRequests, 1004 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-12-02 15:02:54,800 INFO L435 NwaCegarLoop]: 2643 mSDtfsCounter, 0 mSDsluCounter, 23676 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 26319 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:02:54,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 26319 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 15:02:54,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29147 states. [2024-12-02 15:02:55,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29147 to 29147. [2024-12-02 15:02:55,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29147 states, 20043 states have (on average 1.2689717108217333) internal successors, (25434), 20421 states have internal predecessors, (25434), 7562 states have call successors, (7562), 1554 states have call predecessors, (7562), 1541 states have return successors, (7691), 7499 states have call predecessors, (7691), 7561 states have call successors, (7691) [2024-12-02 15:02:55,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29147 states to 29147 states and 40687 transitions. [2024-12-02 15:02:55,585 INFO L78 Accepts]: Start accepts. Automaton has 29147 states and 40687 transitions. Word has length 506 [2024-12-02 15:02:55,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:02:55,585 INFO L471 AbstractCegarLoop]: Abstraction has 29147 states and 40687 transitions. [2024-12-02 15:02:55,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 32.18181818181818) internal successors, (354), 11 states have internal predecessors, (354), 5 states have call successors, (120), 2 states have call predecessors, (120), 5 states have return successors, (111), 5 states have call predecessors, (111), 5 states have call successors, (111) [2024-12-02 15:02:55,585 INFO L276 IsEmpty]: Start isEmpty. Operand 29147 states and 40687 transitions. [2024-12-02 15:02:55,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2024-12-02 15:02:55,717 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:02:55,717 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 10, 10, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:02:55,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 15:02:55,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:02:55,918 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:02:55,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:02:55,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1092255296, now seen corresponding path program 1 times [2024-12-02 15:02:55,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:02:55,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201296023] [2024-12-02 15:02:55,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:02:55,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:02:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:59,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1011 trivial. 0 not checked. [2024-12-02 15:02:59,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:02:59,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201296023] [2024-12-02 15:02:59,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201296023] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:02:59,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459388293] [2024-12-02 15:02:59,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:02:59,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:02:59,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:02:59,109 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:02:59,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 15:03:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:03:02,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 7147 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 15:03:02,932 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:03:03,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 107 proven. 6 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2024-12-02 15:03:03,422 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:03:05,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1001 trivial. 0 not checked. [2024-12-02 15:03:05,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459388293] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:03:05,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:03:05,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 9] total 18 [2024-12-02 15:03:05,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47047791] [2024-12-02 15:03:05,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:03:05,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:03:05,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:03:05,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:03:05,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2024-12-02 15:03:05,307 INFO L87 Difference]: Start difference. First operand 29147 states and 40687 transitions. Second operand has 6 states, 5 states have (on average 46.2) internal successors, (231), 5 states have internal predecessors, (231), 3 states have call successors, (75), 2 states have call predecessors, (75), 3 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2024-12-02 15:03:07,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:03:07,126 INFO L93 Difference]: Finished difference Result 58238 states and 81711 transitions. [2024-12-02 15:03:07,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:03:07,127 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 46.2) internal successors, (231), 5 states have internal predecessors, (231), 3 states have call successors, (75), 2 states have call predecessors, (75), 3 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) Word has length 516 [2024-12-02 15:03:07,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:03:07,249 INFO L225 Difference]: With dead ends: 58238 [2024-12-02 15:03:07,249 INFO L226 Difference]: Without dead ends: 29147 [2024-12-02 15:03:07,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1039 GetRequests, 1022 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2024-12-02 15:03:07,312 INFO L435 NwaCegarLoop]: 2644 mSDtfsCounter, 0 mSDsluCounter, 10521 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 13165 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:03:07,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 13165 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 15:03:07,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29147 states. [2024-12-02 15:03:07,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29147 to 29147. [2024-12-02 15:03:07,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29147 states, 20043 states have (on average 1.2679738562091503) internal successors, (25414), 20421 states have internal predecessors, (25414), 7562 states have call successors, (7562), 1554 states have call predecessors, (7562), 1541 states have return successors, (7691), 7499 states have call predecessors, (7691), 7561 states have call successors, (7691) [2024-12-02 15:03:08,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29147 states to 29147 states and 40667 transitions. [2024-12-02 15:03:08,073 INFO L78 Accepts]: Start accepts. Automaton has 29147 states and 40667 transitions. Word has length 516 [2024-12-02 15:03:08,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:03:08,074 INFO L471 AbstractCegarLoop]: Abstraction has 29147 states and 40667 transitions. [2024-12-02 15:03:08,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 46.2) internal successors, (231), 5 states have internal predecessors, (231), 3 states have call successors, (75), 2 states have call predecessors, (75), 3 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2024-12-02 15:03:08,074 INFO L276 IsEmpty]: Start isEmpty. Operand 29147 states and 40667 transitions. [2024-12-02 15:03:08,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2024-12-02 15:03:08,119 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:03:08,119 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 10, 10, 6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:03:08,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 15:03:08,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:03:08,320 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:03:08,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:03:08,320 INFO L85 PathProgramCache]: Analyzing trace with hash 2017786340, now seen corresponding path program 1 times [2024-12-02 15:03:08,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:03:08,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311750295] [2024-12-02 15:03:08,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:03:08,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:03:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:03:11,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1028 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1020 trivial. 0 not checked. [2024-12-02 15:03:11,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:03:11,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311750295] [2024-12-02 15:03:11,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311750295] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:03:11,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88504813] [2024-12-02 15:03:11,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:03:11,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:03:11,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:03:11,516 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:03:11,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 15:03:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:03:15,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 7183 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 15:03:15,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:03:15,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1028 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2024-12-02 15:03:15,790 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:03:15,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88504813] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:03:15,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:03:15,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-12-02 15:03:15,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645832555] [2024-12-02 15:03:15,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:03:15,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:03:15,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:03:15,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:03:15,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:03:15,793 INFO L87 Difference]: Start difference. First operand 29147 states and 40667 transitions. Second operand has 6 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 3 states have call successors, (76), 2 states have call predecessors, (76), 3 states have return successors, (69), 3 states have call predecessors, (69), 3 states have call successors, (69) [2024-12-02 15:03:17,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:03:17,547 INFO L93 Difference]: Finished difference Result 58238 states and 81591 transitions. [2024-12-02 15:03:17,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:03:17,548 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 3 states have call successors, (76), 2 states have call predecessors, (76), 3 states have return successors, (69), 3 states have call predecessors, (69), 3 states have call successors, (69) Word has length 521 [2024-12-02 15:03:17,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:03:17,691 INFO L225 Difference]: With dead ends: 58238 [2024-12-02 15:03:17,691 INFO L226 Difference]: Without dead ends: 29147 [2024-12-02 15:03:17,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:03:17,764 INFO L435 NwaCegarLoop]: 2643 mSDtfsCounter, 0 mSDsluCounter, 10512 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 13155 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:03:17,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 13155 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 15:03:17,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29147 states. [2024-12-02 15:03:18,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29147 to 29147. [2024-12-02 15:03:18,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29147 states, 20043 states have (on average 1.2669760015965674) internal successors, (25394), 20421 states have internal predecessors, (25394), 7562 states have call successors, (7562), 1554 states have call predecessors, (7562), 1541 states have return successors, (7691), 7499 states have call predecessors, (7691), 7561 states have call successors, (7691) [2024-12-02 15:03:18,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29147 states to 29147 states and 40647 transitions. [2024-12-02 15:03:18,542 INFO L78 Accepts]: Start accepts. Automaton has 29147 states and 40647 transitions. Word has length 521 [2024-12-02 15:03:18,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:03:18,542 INFO L471 AbstractCegarLoop]: Abstraction has 29147 states and 40647 transitions. [2024-12-02 15:03:18,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 3 states have call successors, (76), 2 states have call predecessors, (76), 3 states have return successors, (69), 3 states have call predecessors, (69), 3 states have call successors, (69) [2024-12-02 15:03:18,543 INFO L276 IsEmpty]: Start isEmpty. Operand 29147 states and 40647 transitions. [2024-12-02 15:03:18,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2024-12-02 15:03:18,587 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:03:18,587 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 10, 10, 8, 8, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:03:18,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 15:03:18,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:03:18,788 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:03:18,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:03:18,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1486062009, now seen corresponding path program 1 times [2024-12-02 15:03:18,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:03:18,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798343174] [2024-12-02 15:03:18,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:03:18,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:03:20,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:03:22,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1079 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1071 trivial. 0 not checked. [2024-12-02 15:03:22,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:03:22,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798343174] [2024-12-02 15:03:22,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798343174] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:03:22,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309666313] [2024-12-02 15:03:22,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:03:22,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:03:22,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:03:22,153 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:03:22,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 15:03:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:03:26,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 7261 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-12-02 15:03:26,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:03:26,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1079 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 980 trivial. 0 not checked. [2024-12-02 15:03:26,451 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:03:26,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309666313] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:03:26,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:03:26,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-12-02 15:03:26,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099367360] [2024-12-02 15:03:26,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:03:26,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:03:26,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:03:26,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:03:26,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:03:26,453 INFO L87 Difference]: Start difference. First operand 29147 states and 40647 transitions. Second operand has 6 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 3 states have call successors, (79), 2 states have call predecessors, (79), 3 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2024-12-02 15:03:28,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:03:28,301 INFO L93 Difference]: Finished difference Result 58238 states and 81631 transitions. [2024-12-02 15:03:28,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:03:28,302 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 3 states have call successors, (79), 2 states have call predecessors, (79), 3 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) Word has length 536 [2024-12-02 15:03:28,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:03:28,438 INFO L225 Difference]: With dead ends: 58238 [2024-12-02 15:03:28,438 INFO L226 Difference]: Without dead ends: 29147 [2024-12-02 15:03:28,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 534 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:03:28,506 INFO L435 NwaCegarLoop]: 2642 mSDtfsCounter, 0 mSDsluCounter, 10513 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 13155 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:03:28,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 13155 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 15:03:28,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29147 states. [2024-12-02 15:03:29,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29147 to 29147. [2024-12-02 15:03:29,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29147 states, 20043 states have (on average 1.2659781469839844) internal successors, (25374), 20421 states have internal predecessors, (25374), 7562 states have call successors, (7562), 1554 states have call predecessors, (7562), 1541 states have return successors, (7691), 7499 states have call predecessors, (7691), 7561 states have call successors, (7691) [2024-12-02 15:03:29,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29147 states to 29147 states and 40627 transitions. [2024-12-02 15:03:29,273 INFO L78 Accepts]: Start accepts. Automaton has 29147 states and 40627 transitions. Word has length 536 [2024-12-02 15:03:29,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:03:29,274 INFO L471 AbstractCegarLoop]: Abstraction has 29147 states and 40627 transitions. [2024-12-02 15:03:29,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 3 states have call successors, (79), 2 states have call predecessors, (79), 3 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2024-12-02 15:03:29,274 INFO L276 IsEmpty]: Start isEmpty. Operand 29147 states and 40627 transitions. [2024-12-02 15:03:29,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2024-12-02 15:03:29,322 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:03:29,322 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:03:29,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 15:03:29,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-12-02 15:03:29,524 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:03:29,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:03:29,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1788600447, now seen corresponding path program 1 times [2024-12-02 15:03:29,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:03:29,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268640700] [2024-12-02 15:03:29,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:03:29,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:03:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:03:32,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1094 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1086 trivial. 0 not checked. [2024-12-02 15:03:32,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:03:32,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268640700] [2024-12-02 15:03:32,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268640700] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:03:32,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386952026] [2024-12-02 15:03:32,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:03:32,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:03:32,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:03:32,773 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:03:32,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 15:03:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:03:37,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 7297 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-12-02 15:03:37,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:03:37,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1094 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 939 trivial. 0 not checked. [2024-12-02 15:03:37,369 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:03:37,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386952026] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:03:37,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:03:37,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-12-02 15:03:37,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203384291] [2024-12-02 15:03:37,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:03:37,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:03:37,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:03:37,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:03:37,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:03:37,371 INFO L87 Difference]: Start difference. First operand 29147 states and 40627 transitions. Second operand has 6 states, 5 states have (on average 49.2) internal successors, (246), 5 states have internal predecessors, (246), 3 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2024-12-02 15:03:39,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:03:39,071 INFO L93 Difference]: Finished difference Result 58238 states and 81591 transitions. [2024-12-02 15:03:39,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:03:39,072 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 49.2) internal successors, (246), 5 states have internal predecessors, (246), 3 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) Word has length 541 [2024-12-02 15:03:39,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:03:39,231 INFO L225 Difference]: With dead ends: 58238 [2024-12-02 15:03:39,231 INFO L226 Difference]: Without dead ends: 29147 [2024-12-02 15:03:39,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 539 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:03:39,310 INFO L435 NwaCegarLoop]: 2641 mSDtfsCounter, 0 mSDsluCounter, 10509 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 13150 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:03:39,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 13150 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 15:03:39,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29147 states. [2024-12-02 15:03:39,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29147 to 29147. [2024-12-02 15:03:39,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29147 states, 20043 states have (on average 1.2649802923714015) internal successors, (25354), 20421 states have internal predecessors, (25354), 7562 states have call successors, (7562), 1554 states have call predecessors, (7562), 1541 states have return successors, (7691), 7499 states have call predecessors, (7691), 7561 states have call successors, (7691) [2024-12-02 15:03:40,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29147 states to 29147 states and 40607 transitions. [2024-12-02 15:03:40,318 INFO L78 Accepts]: Start accepts. Automaton has 29147 states and 40607 transitions. Word has length 541 [2024-12-02 15:03:40,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:03:40,318 INFO L471 AbstractCegarLoop]: Abstraction has 29147 states and 40607 transitions. [2024-12-02 15:03:40,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 49.2) internal successors, (246), 5 states have internal predecessors, (246), 3 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2024-12-02 15:03:40,318 INFO L276 IsEmpty]: Start isEmpty. Operand 29147 states and 40607 transitions. [2024-12-02 15:03:40,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2024-12-02 15:03:40,366 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:03:40,366 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 9, 9, 9, 9, 6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:03:40,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 15:03:40,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-12-02 15:03:40,567 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:03:40,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:03:40,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1024849185, now seen corresponding path program 1 times [2024-12-02 15:03:40,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:03:40,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106342791] [2024-12-02 15:03:40,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:03:40,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:03:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:03:42,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2024-12-02 15:03:42,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:03:42,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106342791] [2024-12-02 15:03:42,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106342791] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:03:42,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268246416] [2024-12-02 15:03:42,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:03:42,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:03:42,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:03:42,727 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:03:42,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 15:03:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:03:47,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 7277 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:03:47,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:03:47,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 156 proven. 4 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2024-12-02 15:03:47,560 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:03:49,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2024-12-02 15:03:49,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268246416] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:03:49,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:03:49,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-12-02 15:03:49,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190837997] [2024-12-02 15:03:49,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:03:49,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 15:03:49,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:03:49,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 15:03:49,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:03:49,103 INFO L87 Difference]: Start difference. First operand 29147 states and 40607 transitions. Second operand has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 6 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (101), 6 states have call predecessors, (101), 6 states have call successors, (101) [2024-12-02 15:03:49,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:03:49,984 INFO L93 Difference]: Finished difference Result 59158 states and 82831 transitions. [2024-12-02 15:03:49,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 15:03:49,985 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 6 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (101), 6 states have call predecessors, (101), 6 states have call successors, (101) Word has length 545 [2024-12-02 15:03:49,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:03:50,157 INFO L225 Difference]: With dead ends: 59158 [2024-12-02 15:03:50,157 INFO L226 Difference]: Without dead ends: 30067 [2024-12-02 15:03:50,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1096 GetRequests, 1087 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:03:50,237 INFO L435 NwaCegarLoop]: 2691 mSDtfsCounter, 55 mSDsluCounter, 10776 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 13467 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:03:50,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 13467 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:03:50,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30067 states. [2024-12-02 15:03:50,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30067 to 29447. [2024-12-02 15:03:50,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29447 states, 20283 states have (on average 1.264803037026081) internal successors, (25654), 20661 states have internal predecessors, (25654), 7622 states have call successors, (7622), 1554 states have call predecessors, (7622), 1541 states have return successors, (7751), 7559 states have call predecessors, (7751), 7621 states have call successors, (7751) [2024-12-02 15:03:51,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29447 states to 29447 states and 41027 transitions. [2024-12-02 15:03:51,138 INFO L78 Accepts]: Start accepts. Automaton has 29447 states and 41027 transitions. Word has length 545 [2024-12-02 15:03:51,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:03:51,138 INFO L471 AbstractCegarLoop]: Abstraction has 29447 states and 41027 transitions. [2024-12-02 15:03:51,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 6 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (101), 6 states have call predecessors, (101), 6 states have call successors, (101) [2024-12-02 15:03:51,138 INFO L276 IsEmpty]: Start isEmpty. Operand 29447 states and 41027 transitions. [2024-12-02 15:03:51,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2024-12-02 15:03:51,194 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:03:51,194 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 10, 10, 8, 8, 7, 7, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:03:51,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 15:03:51,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-12-02 15:03:51,394 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:03:51,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:03:51,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1056369841, now seen corresponding path program 1 times [2024-12-02 15:03:51,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:03:51,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958989705] [2024-12-02 15:03:51,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:03:51,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:03:53,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:03:54,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1112 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-12-02 15:03:54,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:03:54,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958989705] [2024-12-02 15:03:54,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958989705] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:03:54,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427472723] [2024-12-02 15:03:54,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:03:54,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:03:54,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:03:54,826 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:03:54,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 15:03:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:03:59,444 INFO L256 TraceCheckSpWp]: Trace formula consists of 7333 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 15:03:59,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:03:59,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1112 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 1009 trivial. 0 not checked. [2024-12-02 15:03:59,550 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:03:59,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427472723] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:03:59,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:03:59,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2024-12-02 15:03:59,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395690376] [2024-12-02 15:03:59,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:03:59,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:03:59,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:03:59,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:03:59,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:03:59,552 INFO L87 Difference]: Start difference. First operand 29447 states and 41027 transitions. Second operand has 7 states, 7 states have (on average 35.42857142857143) internal successors, (248), 6 states have internal predecessors, (248), 2 states have call successors, (83), 2 states have call predecessors, (83), 3 states have return successors, (76), 3 states have call predecessors, (76), 2 states have call successors, (76) [2024-12-02 15:04:00,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:04:00,484 INFO L93 Difference]: Finished difference Result 58934 states and 82545 transitions. [2024-12-02 15:04:00,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:04:00,485 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.42857142857143) internal successors, (248), 6 states have internal predecessors, (248), 2 states have call successors, (83), 2 states have call predecessors, (83), 3 states have return successors, (76), 3 states have call predecessors, (76), 2 states have call successors, (76) Word has length 546 [2024-12-02 15:04:00,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:04:00,688 INFO L225 Difference]: With dead ends: 58934 [2024-12-02 15:04:00,688 INFO L226 Difference]: Without dead ends: 29543 [2024-12-02 15:04:00,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 548 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:04:00,782 INFO L435 NwaCegarLoop]: 2690 mSDtfsCounter, 0 mSDsluCounter, 13407 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16097 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:04:00,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16097 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:04:00,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29543 states. [2024-12-02 15:04:01,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29543 to 29531. [2024-12-02 15:04:01,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29531 states, 20353 states have (on average 1.2638923008893037) internal successors, (25724), 20731 states have internal predecessors, (25724), 7622 states have call successors, (7622), 1554 states have call predecessors, (7622), 1555 states have return successors, (7877), 7573 states have call predecessors, (7877), 7621 states have call successors, (7877) [2024-12-02 15:04:01,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29531 states to 29531 states and 41223 transitions. [2024-12-02 15:04:01,802 INFO L78 Accepts]: Start accepts. Automaton has 29531 states and 41223 transitions. Word has length 546 [2024-12-02 15:04:01,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:04:01,802 INFO L471 AbstractCegarLoop]: Abstraction has 29531 states and 41223 transitions. [2024-12-02 15:04:01,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.42857142857143) internal successors, (248), 6 states have internal predecessors, (248), 2 states have call successors, (83), 2 states have call predecessors, (83), 3 states have return successors, (76), 3 states have call predecessors, (76), 2 states have call successors, (76) [2024-12-02 15:04:01,802 INFO L276 IsEmpty]: Start isEmpty. Operand 29531 states and 41223 transitions. [2024-12-02 15:04:01,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2024-12-02 15:04:01,857 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:04:01,857 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 11, 11, 10, 10, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:04:01,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 15:04:02,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-12-02 15:04:02,058 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:04:02,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:04:02,058 INFO L85 PathProgramCache]: Analyzing trace with hash -720447359, now seen corresponding path program 1 times [2024-12-02 15:04:02,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:04:02,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730756119] [2024-12-02 15:04:02,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:04:02,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:04:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:04:04,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2024-12-02 15:04:04,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:04:04,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730756119] [2024-12-02 15:04:04,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730756119] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:04:04,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188816944] [2024-12-02 15:04:04,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:04:04,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:04:04,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:04:04,292 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:04:04,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 15:04:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:04:09,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 7402 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 15:04:09,127 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:04:09,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 162 proven. 1 refuted. 0 times theorem prover too weak. 998 trivial. 0 not checked. [2024-12-02 15:04:09,182 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:04:10,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1161 trivial. 0 not checked. [2024-12-02 15:04:10,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188816944] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:04:10,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:04:10,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 6 [2024-12-02 15:04:10,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840162853] [2024-12-02 15:04:10,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:04:10,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:04:10,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:04:10,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:04:10,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:04:10,628 INFO L87 Difference]: Start difference. First operand 29531 states and 41223 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 2 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2024-12-02 15:04:11,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:04:11,168 INFO L93 Difference]: Finished difference Result 59026 states and 82823 transitions. [2024-12-02 15:04:11,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:04:11,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 2 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) Word has length 566 [2024-12-02 15:04:11,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:04:11,341 INFO L225 Difference]: With dead ends: 59026 [2024-12-02 15:04:11,341 INFO L226 Difference]: Without dead ends: 29551 [2024-12-02 15:04:11,420 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1134 GetRequests, 1130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:04:11,420 INFO L435 NwaCegarLoop]: 2692 mSDtfsCounter, 8 mSDsluCounter, 2681 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5373 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:04:11,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 5373 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:04:11,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29551 states. [2024-12-02 15:04:12,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29551 to 29551. [2024-12-02 15:04:12,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29551 states, 20373 states have (on average 1.263633240072645) internal successors, (25744), 20751 states have internal predecessors, (25744), 7622 states have call successors, (7622), 1554 states have call predecessors, (7622), 1555 states have return successors, (7877), 7573 states have call predecessors, (7877), 7621 states have call successors, (7877) [2024-12-02 15:04:12,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29551 states to 29551 states and 41243 transitions. [2024-12-02 15:04:12,259 INFO L78 Accepts]: Start accepts. Automaton has 29551 states and 41243 transitions. Word has length 566 [2024-12-02 15:04:12,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:04:12,260 INFO L471 AbstractCegarLoop]: Abstraction has 29551 states and 41243 transitions. [2024-12-02 15:04:12,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 2 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2024-12-02 15:04:12,260 INFO L276 IsEmpty]: Start isEmpty. Operand 29551 states and 41243 transitions. [2024-12-02 15:04:12,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2024-12-02 15:04:12,308 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:04:12,308 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 11, 11, 11, 11, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:04:12,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-12-02 15:04:12,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-12-02 15:04:12,508 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:04:12,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:04:12,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1567641025, now seen corresponding path program 1 times [2024-12-02 15:04:12,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:04:12,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621957238] [2024-12-02 15:04:12,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:04:12,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:04:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:04:14,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1192 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1191 trivial. 0 not checked. [2024-12-02 15:04:14,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:04:14,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621957238] [2024-12-02 15:04:14,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621957238] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:04:14,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019467273] [2024-12-02 15:04:14,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:04:14,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:04:14,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:04:14,705 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:04:14,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-12-02 15:04:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:04:19,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 7434 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 15:04:19,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:04:19,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1192 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2024-12-02 15:04:19,705 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:04:19,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019467273] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:04:19,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:04:19,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-12-02 15:04:19,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262824057] [2024-12-02 15:04:19,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:04:19,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:04:19,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:04:19,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:04:19,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:04:19,706 INFO L87 Difference]: Start difference. First operand 29551 states and 41243 transitions. Second operand has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) [2024-12-02 15:04:20,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:04:20,452 INFO L93 Difference]: Finished difference Result 59146 states and 82963 transitions. [2024-12-02 15:04:20,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:04:20,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) Word has length 575 [2024-12-02 15:04:20,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:04:20,641 INFO L225 Difference]: With dead ends: 59146 [2024-12-02 15:04:20,641 INFO L226 Difference]: Without dead ends: 29651 [2024-12-02 15:04:20,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 574 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:04:20,728 INFO L435 NwaCegarLoop]: 2689 mSDtfsCounter, 6 mSDsluCounter, 5365 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 8054 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:04:20,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 8054 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:04:20,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29651 states. [2024-12-02 15:04:21,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29651 to 29611. [2024-12-02 15:04:21,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29611 states, 20433 states have (on average 1.2628591004747223) internal successors, (25804), 20811 states have internal predecessors, (25804), 7622 states have call successors, (7622), 1554 states have call predecessors, (7622), 1555 states have return successors, (7877), 7573 states have call predecessors, (7877), 7621 states have call successors, (7877) [2024-12-02 15:04:21,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29611 states to 29611 states and 41303 transitions. [2024-12-02 15:04:21,622 INFO L78 Accepts]: Start accepts. Automaton has 29611 states and 41303 transitions. Word has length 575 [2024-12-02 15:04:21,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:04:21,623 INFO L471 AbstractCegarLoop]: Abstraction has 29611 states and 41303 transitions. [2024-12-02 15:04:21,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) [2024-12-02 15:04:21,623 INFO L276 IsEmpty]: Start isEmpty. Operand 29611 states and 41303 transitions. [2024-12-02 15:04:21,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2024-12-02 15:04:21,668 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:04:21,668 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 11, 11, 11, 11, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:04:21,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-12-02 15:04:21,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-12-02 15:04:21,868 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:04:21,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:04:21,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1109807236, now seen corresponding path program 1 times [2024-12-02 15:04:21,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:04:21,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479641366] [2024-12-02 15:04:21,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:04:21,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:04:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:04:24,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1192 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1191 trivial. 0 not checked. [2024-12-02 15:04:24,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:04:24,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479641366] [2024-12-02 15:04:24,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479641366] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:04:24,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214569217] [2024-12-02 15:04:24,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:04:24,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:04:24,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:04:24,189 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:04:24,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-12-02 15:04:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:04:29,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 7437 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 15:04:29,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:04:29,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1192 backedges. 135 proven. 1 refuted. 0 times theorem prover too weak. 1056 trivial. 0 not checked. [2024-12-02 15:04:29,425 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:04:31,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1192 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1191 trivial. 0 not checked. [2024-12-02 15:04:31,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214569217] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:04:31,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:04:31,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-12-02 15:04:31,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662519103] [2024-12-02 15:04:31,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:04:31,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:04:31,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:04:31,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:04:31,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:04:31,054 INFO L87 Difference]: Start difference. First operand 29611 states and 41303 transitions. Second operand has 7 states, 7 states have (on average 46.285714285714285) internal successors, (324), 7 states have internal predecessors, (324), 2 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (115), 2 states have call predecessors, (115), 2 states have call successors, (115) [2024-12-02 15:04:31,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:04:31,699 INFO L93 Difference]: Finished difference Result 59208 states and 82919 transitions. [2024-12-02 15:04:31,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:04:31,699 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 46.285714285714285) internal successors, (324), 7 states have internal predecessors, (324), 2 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (115), 2 states have call predecessors, (115), 2 states have call successors, (115) Word has length 577 [2024-12-02 15:04:31,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:04:31,894 INFO L225 Difference]: With dead ends: 59208 [2024-12-02 15:04:31,894 INFO L226 Difference]: Without dead ends: 29653 [2024-12-02 15:04:31,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1156 GetRequests, 1151 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:04:31,977 INFO L435 NwaCegarLoop]: 2692 mSDtfsCounter, 1 mSDsluCounter, 8067 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10759 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:04:31,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10759 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:04:31,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29653 states. [2024-12-02 15:04:32,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29653 to 29639. [2024-12-02 15:04:32,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29639 states, 20461 states have (on average 1.2624993890816676) internal successors, (25832), 20839 states have internal predecessors, (25832), 7622 states have call successors, (7622), 1554 states have call predecessors, (7622), 1555 states have return successors, (7877), 7573 states have call predecessors, (7877), 7621 states have call successors, (7877) [2024-12-02 15:04:32,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29639 states to 29639 states and 41331 transitions. [2024-12-02 15:04:32,897 INFO L78 Accepts]: Start accepts. Automaton has 29639 states and 41331 transitions. Word has length 577 [2024-12-02 15:04:32,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:04:32,898 INFO L471 AbstractCegarLoop]: Abstraction has 29639 states and 41331 transitions. [2024-12-02 15:04:32,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.285714285714285) internal successors, (324), 7 states have internal predecessors, (324), 2 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (115), 2 states have call predecessors, (115), 2 states have call successors, (115) [2024-12-02 15:04:32,898 INFO L276 IsEmpty]: Start isEmpty. Operand 29639 states and 41331 transitions. [2024-12-02 15:04:32,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2024-12-02 15:04:32,953 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:04:32,954 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 11, 11, 11, 11, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:04:32,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-12-02 15:04:33,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-12-02 15:04:33,154 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:04:33,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:04:33,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1889372736, now seen corresponding path program 2 times [2024-12-02 15:04:33,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:04:33,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69541741] [2024-12-02 15:04:33,155 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:04:33,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:04:35,328 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 15:04:35,328 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 15:04:35,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1194 trivial. 0 not checked. [2024-12-02 15:04:35,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:04:35,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69541741] [2024-12-02 15:04:35,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69541741] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:04:35,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146389714] [2024-12-02 15:04:35,917 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 15:04:35,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:04:35,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:04:35,919 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:04:35,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8736bdee-c6db-492f-bb35-a6af08f249ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process