./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e8310f-a3b2-4a46-8227-24497648c8be/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e8310f-a3b2-4a46-8227-24497648c8be/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e8310f-a3b2-4a46-8227-24497648c8be/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e8310f-a3b2-4a46-8227-24497648c8be/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e8310f-a3b2-4a46-8227-24497648c8be/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e8310f-a3b2-4a46-8227-24497648c8be/bin/uautomizer-verify-uTZkv6EMXl --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 1848e360a16ec6531e7d7aea690ab68ac7295c6b0bdec191a41fa9ee0518b66d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:08:40,913 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:08:41,043 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e8310f-a3b2-4a46-8227-24497648c8be/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:08:41,059 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:08:41,059 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:08:41,103 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:08:41,103 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:08:41,104 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:08:41,105 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:08:41,106 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:08:41,107 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:08:41,107 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:08:41,108 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:08:41,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:08:41,109 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:08:41,110 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:08:41,110 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:08:41,111 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:08:41,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:08:41,112 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:08:41,112 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:08:41,117 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:08:41,118 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:08:41,118 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:08:41,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:08:41,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:08:41,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:08:41,126 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:08:41,126 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:08:41,127 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:08:41,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:08:41,128 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:08:41,128 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:08:41,129 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:08:41,129 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:08:41,130 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:08:41,131 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e8310f-a3b2-4a46-8227-24497648c8be/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e8310f-a3b2-4a46-8227-24497648c8be/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1848e360a16ec6531e7d7aea690ab68ac7295c6b0bdec191a41fa9ee0518b66d [2023-11-12 02:08:41,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:08:41,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:08:41,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:08:41,507 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:08:41,508 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:08:41,509 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e8310f-a3b2-4a46-8227-24497648c8be/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2023-11-12 02:08:44,551 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:08:45,258 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:08:45,259 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e8310f-a3b2-4a46-8227-24497648c8be/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2023-11-12 02:08:45,326 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e8310f-a3b2-4a46-8227-24497648c8be/bin/uautomizer-verify-uTZkv6EMXl/data/d75532aab/d3cdef9661fb45a38863ce4dec01b0a4/FLAG912f506ef [2023-11-12 02:08:45,345 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e8310f-a3b2-4a46-8227-24497648c8be/bin/uautomizer-verify-uTZkv6EMXl/data/d75532aab/d3cdef9661fb45a38863ce4dec01b0a4 [2023-11-12 02:08:45,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:08:45,355 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:08:45,357 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:08:45,358 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:08:45,364 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:08:45,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:08:45" (1/1) ... [2023-11-12 02:08:45,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37e3f348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:45, skipping insertion in model container [2023-11-12 02:08:45,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:08:45" (1/1) ... [2023-11-12 02:08:45,534 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:08:46,645 WARN L240 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_e6e8310f-a3b2-4a46-8227-24497648c8be/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i[196736,196749] [2023-11-12 02:08:47,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:08:47,685 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:08:47,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [6556] [2023-11-12 02:08:47,831 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [6579] [2023-11-12 02:08:47,831 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [6587-6588] [2023-11-12 02:08:47,833 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 *)"/work/ldvuser/mutilin/launch/inst/current/envs/linux-3.12-rc1.tar.xz/linux-3.12-rc1/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [6613-6614] [2023-11-12 02:08:47,834 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"); [6619-6621] [2023-11-12 02:08:47,841 WARN L240 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_e6e8310f-a3b2-4a46-8227-24497648c8be/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i[196736,196749] [2023-11-12 02:08:48,058 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:08:48,114 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:08:48,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:48 WrapperNode [2023-11-12 02:08:48,114 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:08:48,116 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:08:48,116 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:08:48,116 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:08:48,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:48" (1/1) ... [2023-11-12 02:08:48,205 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:48" (1/1) ... [2023-11-12 02:08:48,322 INFO L138 Inliner]: procedures = 201, calls = 1593, calls flagged for inlining = 91, calls inlined = 86, statements flattened = 2791 [2023-11-12 02:08:48,323 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:08:48,323 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:08:48,324 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:08:48,324 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:08:48,333 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:48" (1/1) ... [2023-11-12 02:08:48,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:48" (1/1) ... [2023-11-12 02:08:48,355 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:48" (1/1) ... [2023-11-12 02:08:48,356 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:48" (1/1) ... [2023-11-12 02:08:48,461 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:48" (1/1) ... [2023-11-12 02:08:48,487 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:48" (1/1) ... [2023-11-12 02:08:48,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:48" (1/1) ... [2023-11-12 02:08:48,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:48" (1/1) ... [2023-11-12 02:08:48,641 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:08:48,642 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:08:48,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:08:48,643 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:08:48,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:48" (1/1) ... [2023-11-12 02:08:48,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:08:48,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e8310f-a3b2-4a46-8227-24497648c8be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:48,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e8310f-a3b2-4a46-8227-24497648c8be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:08:48,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e8310f-a3b2-4a46-8227-24497648c8be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:08:48,726 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-12 02:08:48,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-12 02:08:48,727 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2023-11-12 02:08:48,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2023-11-12 02:08:48,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_12 [2023-11-12 02:08:48,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_12 [2023-11-12 02:08:48,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 02:08:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 02:08:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 02:08:48,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 02:08:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2023-11-12 02:08:48,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2023-11-12 02:08:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-11-12 02:08:48,730 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-11-12 02:08:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-11-12 02:08:48,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-11-12 02:08:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2023-11-12 02:08:48,730 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2023-11-12 02:08:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 02:08:48,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 02:08:48,731 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_sec_feed [2023-11-12 02:08:48,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_sec_feed [2023-11-12 02:08:48,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-11-12 02:08:48,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-11-12 02:08:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-12 02:08:48,732 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-12 02:08:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2023-11-12 02:08:48,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2023-11-12 02:08:48,733 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 02:08:48,733 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 02:08:48,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 02:08:48,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 02:08:48,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 02:08:48,734 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 02:08:48,735 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:08:48,735 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:08:48,735 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2023-11-12 02:08:48,735 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2023-11-12 02:08:48,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2023-11-12 02:08:48,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2023-11-12 02:08:48,736 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 02:08:48,736 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 02:08:48,736 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_urb [2023-11-12 02:08:48,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_urb [2023-11-12 02:08:48,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:08:48,737 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-11-12 02:08:48,737 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-11-12 02:08:48,737 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-12 02:08:48,737 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-12 02:08:48,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:08:48,738 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 02:08:48,738 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 02:08:48,738 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_feed [2023-11-12 02:08:48,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_feed [2023-11-12 02:08:48,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:08:48,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:08:48,738 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2023-11-12 02:08:48,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2023-11-12 02:08:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 02:08:48,739 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 02:08:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-12 02:08:48,739 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-12 02:08:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-12 02:08:48,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-12 02:08:48,740 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_ts_feed [2023-11-12 02:08:48,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_ts_feed [2023-11-12 02:08:48,741 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 02:08:48,741 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 02:08:48,741 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-12 02:08:48,742 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-12 02:08:48,742 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-12 02:08:48,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-12 02:08:48,742 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2023-11-12 02:08:48,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2023-11-12 02:08:48,742 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-12 02:08:48,743 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-12 02:08:48,743 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2023-11-12 02:08:48,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2023-11-12 02:08:48,743 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-11-12 02:08:48,743 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-11-12 02:08:48,744 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-11-12 02:08:48,744 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-11-12 02:08:48,744 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2023-11-12 02:08:48,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2023-11-12 02:08:48,744 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2023-11-12 02:08:48,744 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2023-11-12 02:08:48,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 02:08:48,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-12 02:08:48,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-12 02:08:48,746 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 02:08:48,746 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 02:08:48,746 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-12 02:08:48,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-12 02:08:48,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 02:08:48,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2023-11-12 02:08:48,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2023-11-12 02:08:48,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2023-11-12 02:08:48,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2023-11-12 02:08:48,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2023-11-12 02:08:48,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2023-11-12 02:08:48,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2023-11-12 02:08:48,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2023-11-12 02:08:48,747 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2023-11-12 02:08:48,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2023-11-12 02:08:48,748 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2023-11-12 02:08:48,748 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2023-11-12 02:08:48,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:08:48,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 02:08:48,748 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 02:08:48,748 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-12 02:08:48,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-12 02:08:48,749 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-12 02:08:48,749 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-12 02:08:48,750 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 02:08:48,750 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 02:08:48,750 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-12 02:08:48,750 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-12 02:08:48,750 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2023-11-12 02:08:48,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2023-11-12 02:08:48,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:08:48,751 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2023-11-12 02:08:48,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2023-11-12 02:08:48,752 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-11-12 02:08:48,752 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-11-12 02:08:48,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 02:08:48,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 02:08:48,752 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2023-11-12 02:08:48,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2023-11-12 02:08:48,752 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2023-11-12 02:08:48,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2023-11-12 02:08:48,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:08:48,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:08:48,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 02:08:48,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 02:08:48,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:08:48,754 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:08:48,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:08:48,754 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-12 02:08:48,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-12 02:08:48,755 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_init_rc [2023-11-12 02:08:48,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_init_rc [2023-11-12 02:08:48,755 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2023-11-12 02:08:48,755 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2023-11-12 02:08:48,756 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-12 02:08:48,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-12 02:08:48,756 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2023-11-12 02:08:48,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2023-11-12 02:08:48,756 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_handle_irq [2023-11-12 02:08:48,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_handle_irq [2023-11-12 02:08:48,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-11-12 02:08:48,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-11-12 02:08:48,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:08:48,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:08:48,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:08:49,425 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:08:49,429 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:08:49,741 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 02:08:56,003 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2023-11-12 02:08:56,631 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:08:56,656 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:08:56,662 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:08:56,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:08:56 BoogieIcfgContainer [2023-11-12 02:08:56,667 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:08:56,670 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:08:56,670 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:08:56,674 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:08:56,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:08:45" (1/3) ... [2023-11-12 02:08:56,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b4a619a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:08:56, skipping insertion in model container [2023-11-12 02:08:56,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:48" (2/3) ... [2023-11-12 02:08:56,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b4a619a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:08:56, skipping insertion in model container [2023-11-12 02:08:56,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:08:56" (3/3) ... [2023-11-12 02:08:56,727 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2023-11-12 02:08:56,748 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:08:56,748 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:08:56,837 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:08:56,849 INFO L357 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, mHoare=true, 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;@4463e06e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:08:56,849 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:08:56,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 1235 states, 868 states have (on average 1.3225806451612903) internal successors, (1148), 895 states have internal predecessors, (1148), 298 states have call successors, (298), 69 states have call predecessors, (298), 67 states have return successors, (292), 284 states have call predecessors, (292), 292 states have call successors, (292) [2023-11-12 02:08:56,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-12 02:08:56,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:56,877 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:56,878 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:08:56,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:56,886 INFO L85 PathProgramCache]: Analyzing trace with hash 645155792, now seen corresponding path program 1 times [2023-11-12 02:08:56,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:56,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289173810] [2023-11-12 02:08:56,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:56,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:57,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:08:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:57,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:08:57,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:57,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:08:57,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:57,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:08:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:57,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-12 02:08:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:57,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-12 02:08:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:57,900 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-12 02:08:57,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:57,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289173810] [2023-11-12 02:08:57,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289173810] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:57,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:57,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:08:57,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817114673] [2023-11-12 02:08:57,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:57,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:08:57,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:57,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:08:57,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:08:57,947 INFO L87 Difference]: Start difference. First operand has 1235 states, 868 states have (on average 1.3225806451612903) internal successors, (1148), 895 states have internal predecessors, (1148), 298 states have call successors, (298), 69 states have call predecessors, (298), 67 states have return successors, (292), 284 states have call predecessors, (292), 292 states have call successors, (292) Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-12 02:09:02,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:09:04,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:09:06,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:09:10,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:09:12,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:09:14,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:09:16,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:09:22,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:22,134 INFO L93 Difference]: Finished difference Result 4104 states and 6072 transitions. [2023-11-12 02:09:22,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:09:22,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2023-11-12 02:09:22,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:22,202 INFO L225 Difference]: With dead ends: 4104 [2023-11-12 02:09:22,202 INFO L226 Difference]: Without dead ends: 2848 [2023-11-12 02:09:22,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:09:22,228 INFO L413 NwaCegarLoop]: 1407 mSDtfsCounter, 3391 mSDsluCounter, 2515 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 1845 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3621 SdHoareTripleChecker+Valid, 3922 SdHoareTripleChecker+Invalid, 3635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1845 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:22,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3621 Valid, 3922 Invalid, 3635 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1845 Valid, 1783 Invalid, 7 Unknown, 0 Unchecked, 23.6s Time] [2023-11-12 02:09:22,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2848 states. [2023-11-12 02:09:22,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2848 to 2402. [2023-11-12 02:09:22,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2402 states, 1697 states have (on average 1.3064230995875075) internal successors, (2217), 1731 states have internal predecessors, (2217), 572 states have call successors, (572), 133 states have call predecessors, (572), 132 states have return successors, (567), 551 states have call predecessors, (567), 567 states have call successors, (567) [2023-11-12 02:09:22,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2402 states to 2402 states and 3356 transitions. [2023-11-12 02:09:22,669 INFO L78 Accepts]: Start accepts. Automaton has 2402 states and 3356 transitions. Word has length 52 [2023-11-12 02:09:22,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:22,670 INFO L495 AbstractCegarLoop]: Abstraction has 2402 states and 3356 transitions. [2023-11-12 02:09:22,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-12 02:09:22,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2402 states and 3356 transitions. [2023-11-12 02:09:22,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-12 02:09:22,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:22,675 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:22,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:09:22,681 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:09:22,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:22,682 INFO L85 PathProgramCache]: Analyzing trace with hash -255965875, now seen corresponding path program 1 times [2023-11-12 02:09:22,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:22,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832495103] [2023-11-12 02:09:22,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:22,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:22,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:09:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:22,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:09:22,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:23,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:09:23,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:23,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:09:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:23,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-12 02:09:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:23,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-12 02:09:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:23,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:09:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:23,104 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-12 02:09:23,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:23,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832495103] [2023-11-12 02:09:23,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832495103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:23,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:23,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:09:23,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468321669] [2023-11-12 02:09:23,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:23,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:09:23,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:23,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:09:23,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:09:23,114 INFO L87 Difference]: Start difference. First operand 2402 states and 3356 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-12 02:09:26,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:09:28,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:09:30,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:09:36,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:36,075 INFO L93 Difference]: Finished difference Result 2874 states and 4157 transitions. [2023-11-12 02:09:36,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:09:36,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 62 [2023-11-12 02:09:36,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:36,104 INFO L225 Difference]: With dead ends: 2874 [2023-11-12 02:09:36,105 INFO L226 Difference]: Without dead ends: 2861 [2023-11-12 02:09:36,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:09:36,113 INFO L413 NwaCegarLoop]: 1390 mSDtfsCounter, 2527 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 1051 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2734 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 2276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1051 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:36,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2734 Valid, 2698 Invalid, 2276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1051 Valid, 1222 Invalid, 3 Unknown, 0 Unchecked, 12.6s Time] [2023-11-12 02:09:36,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2861 states. [2023-11-12 02:09:36,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2861 to 2402. [2023-11-12 02:09:36,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2402 states, 1697 states have (on average 1.3058338243959928) internal successors, (2216), 1731 states have internal predecessors, (2216), 572 states have call successors, (572), 133 states have call predecessors, (572), 132 states have return successors, (567), 551 states have call predecessors, (567), 567 states have call successors, (567) [2023-11-12 02:09:36,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2402 states to 2402 states and 3355 transitions. [2023-11-12 02:09:36,309 INFO L78 Accepts]: Start accepts. Automaton has 2402 states and 3355 transitions. Word has length 62 [2023-11-12 02:09:36,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:36,310 INFO L495 AbstractCegarLoop]: Abstraction has 2402 states and 3355 transitions. [2023-11-12 02:09:36,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-12 02:09:36,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2402 states and 3355 transitions. [2023-11-12 02:09:36,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-12 02:09:36,320 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:36,320 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:36,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:09:36,321 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:09:36,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:36,321 INFO L85 PathProgramCache]: Analyzing trace with hash -198707573, now seen corresponding path program 1 times [2023-11-12 02:09:36,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:36,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207720314] [2023-11-12 02:09:36,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:36,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:36,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:09:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:36,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:09:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:36,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:09:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:36,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:09:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:37,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-12 02:09:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:37,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-12 02:09:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:37,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:09:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:37,104 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-12 02:09:37,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:37,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207720314] [2023-11-12 02:09:37,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207720314] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:37,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:37,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:09:37,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205911690] [2023-11-12 02:09:37,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:37,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:09:37,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:37,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:09:37,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:09:37,108 INFO L87 Difference]: Start difference. First operand 2402 states and 3355 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7)