./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--tty--serial--8250--8250.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02580da8-a7e5-4263-823e-a4bdfca11111/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02580da8-a7e5-4263-823e-a4bdfca11111/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02580da8-a7e5-4263-823e-a4bdfca11111/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02580da8-a7e5-4263-823e-a4bdfca11111/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02580da8-a7e5-4263-823e-a4bdfca11111/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02580da8-a7e5-4263-823e-a4bdfca11111/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 c59d24ca7e400c1a8a00858a94bd019ea47bce8fc36becb9b508e062f91a0ddc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:59:39,953 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:59:40,038 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02580da8-a7e5-4263-823e-a4bdfca11111/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 21:59:40,045 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:59:40,046 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:59:40,076 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:59:40,076 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:59:40,077 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:59:40,078 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:59:40,079 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:59:40,080 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:59:40,080 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:59:40,081 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:59:40,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:59:40,082 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:59:40,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:59:40,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:59:40,084 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:59:40,085 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:59:40,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:59:40,086 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:59:40,087 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:59:40,088 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:59:40,088 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:59:40,089 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:59:40,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:59:40,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:59:40,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:59:40,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:59:40,092 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:59:40,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:59:40,093 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:59:40,093 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:59:40,094 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:59:40,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:59:40,095 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:59:40,095 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_02580da8-a7e5-4263-823e-a4bdfca11111/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02580da8-a7e5-4263-823e-a4bdfca11111/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c59d24ca7e400c1a8a00858a94bd019ea47bce8fc36becb9b508e062f91a0ddc [2023-11-06 21:59:40,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:59:40,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:59:40,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:59:40,415 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:59:40,417 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:59:40,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02580da8-a7e5-4263-823e-a4bdfca11111/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i [2023-11-06 21:59:43,859 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:59:44,657 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:59:44,658 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02580da8-a7e5-4263-823e-a4bdfca11111/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i [2023-11-06 21:59:44,720 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02580da8-a7e5-4263-823e-a4bdfca11111/bin/uautomizer-verify-WvqO1wxjHP/data/a9c8b08f3/098f5d9f819e4556abcff150d46a83d6/FLAG371ef177c [2023-11-06 21:59:44,744 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02580da8-a7e5-4263-823e-a4bdfca11111/bin/uautomizer-verify-WvqO1wxjHP/data/a9c8b08f3/098f5d9f819e4556abcff150d46a83d6 [2023-11-06 21:59:44,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:59:44,750 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:59:44,752 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:59:44,752 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:59:44,759 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:59:44,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:44" (1/1) ... [2023-11-06 21:59:44,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3830d8cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:44, skipping insertion in model container [2023-11-06 21:59:44,763 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:44" (1/1) ... [2023-11-06 21:59:45,037 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:59:45,754 WARN L1270 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4050] [2023-11-06 21:59:45,755 WARN L1270 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4051-4052] [2023-11-06 21:59:46,224 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_02580da8-a7e5-4263-823e-a4bdfca11111/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i[126730,126743] [2023-11-06 21:59:48,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:59:48,234 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:59:48,407 WARN L1270 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4050] [2023-11-06 21:59:48,407 WARN L1270 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4051-4052] [2023-11-06 21:59:48,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [4276] [2023-11-06 21:59:48,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [4284] [2023-11-06 21:59:48,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [4291] [2023-11-06 21:59:48,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [4298] [2023-11-06 21:59:48,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [4307] [2023-11-06 21:59:48,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [4315] [2023-11-06 21:59:48,430 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_02580da8-a7e5-4263-823e-a4bdfca11111/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i[126730,126743] [2023-11-06 21:59:48,580 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/work/current--X--drivers--X--defaultlinux-3.16-rc1.tar.xz--X--43_2a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/531/dscv_tempdir/dscv/ri/43_2a/drivers/tty/serial/8250/8250_core.o.c.prepared"), "i" (1693), "i" (12UL)); [6017-6018] [2023-11-06 21:59:48,587 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/work/current--X--drivers--X--defaultlinux-3.16-rc1.tar.xz--X--43_2a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/531/dscv_tempdir/dscv/ri/43_2a/drivers/tty/serial/8250/8250_core.o.c.prepared"), "i" (1774), "i" (12UL)); [6130-6131] [2023-11-06 21:59:48,588 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/work/current--X--drivers--X--defaultlinux-3.16-rc1.tar.xz--X--43_2a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/531/dscv_tempdir/dscv/ri/43_2a/drivers/tty/serial/8250/8250_core.o.c.prepared"), "i" (1775), "i" (12UL)); [6139-6140] [2023-11-06 21:59:48,839 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"); [9367] [2023-11-06 21:59:48,841 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)); [9402-9403] [2023-11-06 21:59:48,841 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"); [9408-9410] [2023-11-06 21:59:48,848 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [9495-9496] [2023-11-06 21:59:48,851 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [9524-9525] [2023-11-06 21:59:48,852 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (103), "i" (12UL)); [9554-9555] [2023-11-06 21:59:48,856 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (115), "i" (12UL)); [9584-9585] [2023-11-06 21:59:48,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:59:49,136 WARN L672 CHandler]: The function strstr is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:59:49,145 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:59:49,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:49 WrapperNode [2023-11-06 21:59:49,146 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:59:49,148 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:59:49,148 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:59:49,148 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:59:49,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:49" (1/1) ... [2023-11-06 21:59:49,357 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:49" (1/1) ... [2023-11-06 21:59:49,772 INFO L138 Inliner]: procedures = 349, calls = 4553, calls flagged for inlining = 166, calls inlined = 164, statements flattened = 9190 [2023-11-06 21:59:49,773 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:59:49,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:59:49,774 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:59:49,774 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:59:49,785 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:49" (1/1) ... [2023-11-06 21:59:49,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:49" (1/1) ... [2023-11-06 21:59:49,865 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:49" (1/1) ... [2023-11-06 21:59:49,866 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:49" (1/1) ... [2023-11-06 21:59:50,282 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:49" (1/1) ... [2023-11-06 21:59:50,338 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:49" (1/1) ... [2023-11-06 21:59:50,388 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:49" (1/1) ... [2023-11-06 21:59:50,439 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:49" (1/1) ... [2023-11-06 21:59:50,502 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:59:50,503 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:59:50,503 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:59:50,503 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:59:50,504 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:49" (1/1) ... [2023-11-06 21:59:50,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:59:50,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02580da8-a7e5-4263-823e-a4bdfca11111/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:50,550 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02580da8-a7e5-4263-823e-a4bdfca11111/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:50,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02580da8-a7e5-4263-823e-a4bdfca11111/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:59:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_tx_chars [2023-11-06 21:59:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_tx_chars [2023-11-06 21:59:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure uart_poll_timeout [2023-11-06 21:59:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_poll_timeout [2023-11-06 21:59:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2023-11-06 21:59:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2023-11-06 21:59:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_rx_chars [2023-11-06 21:59:50,775 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_rx_chars [2023-11-06 21:59:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_out_sync [2023-11-06 21:59:50,776 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_out_sync [2023-11-06 21:59:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_do_pm [2023-11-06 21:59:50,776 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_do_pm [2023-11-06 21:59:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure serial_dl_write [2023-11-06 21:59:50,778 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_dl_write [2023-11-06 21:59:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure autoconfig_read_divisor_id [2023-11-06 21:59:50,778 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconfig_read_divisor_id [2023-11-06 21:59:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-06 21:59:50,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-06 21:59:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_set_mctrl [2023-11-06 21:59:50,781 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_set_mctrl [2023-11-06 21:59:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-06 21:59:50,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-06 21:59:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_device [2023-11-06 21:59:50,783 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_device [2023-11-06 21:59:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_request_port [2023-11-06 21:59:50,796 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_request_port [2023-11-06 21:59:50,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-06 21:59:50,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-06 21:59:50,797 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_stop_tx [2023-11-06 21:59:50,797 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_stop_tx [2023-11-06 21:59:50,797 INFO L130 BoogieDeclarations]: Found specification of procedure uart_unregister_driver [2023-11-06 21:59:50,798 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_unregister_driver [2023-11-06 21:59:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2023-11-06 21:59:50,798 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2023-11-06 21:59:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_prep_slave_single [2023-11-06 21:59:50,798 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_prep_slave_single [2023-11-06 21:59:50,798 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2023-11-06 21:59:50,799 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2023-11-06 21:59:50,799 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_device_control [2023-11-06 21:59:50,799 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_device_control [2023-11-06 21:59:50,799 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-06 21:59:50,799 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-06 21:59:50,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_5 [2023-11-06 21:59:50,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_5 [2023-11-06 21:59:50,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-06 21:59:50,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-06 21:59:50,800 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_start_tx [2023-11-06 21:59:50,800 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_start_tx [2023-11-06 21:59:50,801 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-06 21:59:50,802 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-06 21:59:50,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 21:59:50,803 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 21:59:50,803 INFO L130 BoogieDeclarations]: Found specification of procedure autoconfig_16550a [2023-11-06 21:59:50,804 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconfig_16550a [2023-11-06 21:59:50,804 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 21:59:50,804 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 21:59:50,804 INFO L130 BoogieDeclarations]: Found specification of procedure __dma_tx_complete [2023-11-06 21:59:50,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __dma_tx_complete [2023-11-06 21:59:50,804 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-06 21:59:50,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-06 21:59:50,806 INFO L130 BoogieDeclarations]: Found specification of procedure dma_release_channel [2023-11-06 21:59:50,806 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_release_channel [2023-11-06 21:59:50,806 INFO L130 BoogieDeclarations]: Found specification of procedure check_name [2023-11-06 21:59:50,806 INFO L138 BoogieDeclarations]: Found implementation of procedure check_name [2023-11-06 21:59:50,806 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-06 21:59:50,807 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-06 21:59:50,807 INFO L130 BoogieDeclarations]: Found specification of procedure serial_in [2023-11-06 21:59:50,807 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_in [2023-11-06 21:59:50,808 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_handle_irq [2023-11-06 21:59:50,808 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_handle_irq [2023-11-06 21:59:50,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:59:50,808 INFO L130 BoogieDeclarations]: Found specification of procedure broken_efr [2023-11-06 21:59:50,808 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_efr [2023-11-06 21:59:50,809 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_submit [2023-11-06 21:59:50,810 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_submit [2023-11-06 21:59:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_modem_status [2023-11-06 21:59:50,810 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_modem_status [2023-11-06 21:59:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_startup [2023-11-06 21:59:50,810 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_startup [2023-11-06 21:59:50,811 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-11-06 21:59:50,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-11-06 21:59:50,811 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_pnp_exit [2023-11-06 21:59:50,811 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_pnp_exit [2023-11-06 21:59:50,811 INFO L130 BoogieDeclarations]: Found specification of procedure uart_suspend_port [2023-11-06 21:59:50,811 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_suspend_port [2023-11-06 21:59:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 21:59:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_set_ldisc [2023-11-06 21:59:50,812 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_set_ldisc [2023-11-06 21:59:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure uart_add_one_port [2023-11-06 21:59:50,812 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_add_one_port [2023-11-06 21:59:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_port_size [2023-11-06 21:59:50,813 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_port_size [2023-11-06 21:59:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-06 21:59:50,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-06 21:59:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-06 21:59:50,816 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-06 21:59:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2023-11-06 21:59:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_tx_dma [2023-11-06 21:59:50,829 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_tx_dma [2023-11-06 21:59:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_put_poll_char [2023-11-06 21:59:50,830 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_put_poll_char [2023-11-06 21:59:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_release_dma [2023-11-06 21:59:50,830 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_release_dma [2023-11-06 21:59:50,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:59:50,832 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_tx_empty [2023-11-06 21:59:50,832 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_tx_empty [2023-11-06 21:59:50,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 21:59:50,832 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_out [2023-11-06 21:59:50,832 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_out [2023-11-06 21:59:50,833 INFO L130 BoogieDeclarations]: Found specification of procedure disable_rsa [2023-11-06 21:59:50,833 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_rsa [2023-11-06 21:59:50,833 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-06 21:59:50,833 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-06 21:59:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_clear_fifos [2023-11-06 21:59:50,834 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_clear_fifos [2023-11-06 21:59:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure serial_out [2023-11-06 21:59:50,835 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_out [2023-11-06 21:59:50,835 INFO L130 BoogieDeclarations]: Found specification of procedure serial_icr_write [2023-11-06 21:59:50,835 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_icr_write [2023-11-06 21:59:50,835 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-06 21:59:50,835 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-06 21:59:50,836 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-06 21:59:50,836 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-06 21:59:50,837 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_get_poll_char [2023-11-06 21:59:50,837 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_get_poll_char [2023-11-06 21:59:50,837 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_probe [2023-11-06 21:59:50,837 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_probe [2023-11-06 21:59:50,838 INFO L130 BoogieDeclarations]: Found specification of procedure serial_do_unlink [2023-11-06 21:59:50,838 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_do_unlink [2023-11-06 21:59:50,838 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_set_termios [2023-11-06 21:59:50,838 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_set_termios [2023-11-06 21:59:50,840 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-06 21:59:50,840 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-06 21:59:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_unregister_port [2023-11-06 21:59:50,842 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_unregister_port [2023-11-06 21:59:50,845 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_stop_rx [2023-11-06 21:59:50,846 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_stop_rx [2023-11-06 21:59:50,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-06 21:59:50,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-06 21:59:50,848 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_request_rsa_resource [2023-11-06 21:59:50,848 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_request_rsa_resource [2023-11-06 21:59:50,849 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-06 21:59:50,850 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-06 21:59:50,851 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_isa_init_ports [2023-11-06 21:59:50,856 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_isa_init_ports [2023-11-06 21:59:50,856 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-06 21:59:50,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-06 21:59:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-06 21:59:50,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-06 21:59:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure is_omap1_8250 [2023-11-06 21:59:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure is_omap1_8250 [2023-11-06 21:59:50,859 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2023-11-06 21:59:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2023-11-06 21:59:50,859 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_verify_port [2023-11-06 21:59:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_verify_port [2023-11-06 21:59:50,860 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-06 21:59:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-06 21:59:50,860 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2023-11-06 21:59:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2023-11-06 21:59:50,860 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2023-11-06 21:59:50,861 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2023-11-06 21:59:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure set_io_from_upio [2023-11-06 21:59:50,861 INFO L138 BoogieDeclarations]: Found implementation of procedure set_io_from_upio [2023-11-06 21:59:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2023-11-06 21:59:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2023-11-06 21:59:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-06 21:59:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-06 21:59:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure uart_remove_one_port [2023-11-06 21:59:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_remove_one_port [2023-11-06 21:59:50,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:59:50,863 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_suspend_port [2023-11-06 21:59:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_suspend_port [2023-11-06 21:59:50,863 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_request_dma [2023-11-06 21:59:50,864 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_request_dma [2023-11-06 21:59:50,864 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-06 21:59:50,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-06 21:59:50,864 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_get_mctrl [2023-11-06 21:59:50,865 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_get_mctrl [2023-11-06 21:59:50,865 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2023-11-06 21:59:50,865 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2023-11-06 21:59:50,865 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_release_rsa_resource [2023-11-06 21:59:50,865 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_release_rsa_resource [2023-11-06 21:59:50,866 INFO L130 BoogieDeclarations]: Found specification of procedure __dma_request_slave_channel_compat [2023-11-06 21:59:50,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __dma_request_slave_channel_compat [2023-11-06 21:59:50,866 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_release_std_resource [2023-11-06 21:59:50,866 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_release_std_resource [2023-11-06 21:59:50,866 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_tx_status [2023-11-06 21:59:50,867 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_tx_status [2023-11-06 21:59:50,867 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-06 21:59:50,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-06 21:59:50,867 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_in [2023-11-06 21:59:50,867 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_in [2023-11-06 21:59:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:59:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_type [2023-11-06 21:59:50,868 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_type [2023-11-06 21:59:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-06 21:59:50,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-06 21:59:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_register_8250_port [2023-11-06 21:59:50,869 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_register_8250_port [2023-11-06 21:59:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-06 21:59:50,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-06 21:59:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure uart_write_wakeup [2023-11-06 21:59:50,870 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_write_wakeup [2023-11-06 21:59:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-06 21:59:50,870 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-06 21:59:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-06 21:59:50,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-06 21:59:50,871 INFO L130 BoogieDeclarations]: Found specification of procedure serial_icr_read [2023-11-06 21:59:50,871 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_icr_read [2023-11-06 21:59:50,871 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_break_ctl [2023-11-06 21:59:50,871 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_break_ctl [2023-11-06 21:59:50,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:59:50,872 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_pm [2023-11-06 21:59:50,872 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_pm [2023-11-06 21:59:50,872 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2023-11-06 21:59:50,872 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2023-11-06 21:59:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_do_set_termios [2023-11-06 21:59:50,873 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_do_set_termios [2023-11-06 21:59:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:59:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure uart_tx_stopped [2023-11-06 21:59:50,873 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_tx_stopped [2023-11-06 21:59:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_xmitr [2023-11-06 21:59:50,874 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_xmitr [2023-11-06 21:59:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure autoconfig [2023-11-06 21:59:50,874 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconfig [2023-11-06 21:59:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure serial_dl_read [2023-11-06 21:59:50,875 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_dl_read [2023-11-06 21:59:50,875 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-06 21:59:50,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-06 21:59:50,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 21:59:50,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-06 21:59:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-06 21:59:50,876 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-11-06 21:59:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-11-06 21:59:50,876 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 21:59:50,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 21:59:50,878 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-06 21:59:50,878 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-06 21:59:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure serial_pnp_remove [2023-11-06 21:59:50,879 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_pnp_remove [2023-11-06 21:59:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2023-11-06 21:59:50,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2023-11-06 21:59:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure uart_handle_break [2023-11-06 21:59:50,880 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_handle_break [2023-11-06 21:59:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-06 21:59:50,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-06 21:59:50,893 INFO L130 BoogieDeclarations]: Found specification of procedure serial_index [2023-11-06 21:59:50,893 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_index [2023-11-06 21:59:50,893 INFO L130 BoogieDeclarations]: Found specification of procedure __dma_rx_complete [2023-11-06 21:59:50,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __dma_rx_complete [2023-11-06 21:59:50,893 INFO L130 BoogieDeclarations]: Found specification of procedure dma_async_issue_pending [2023-11-06 21:59:50,894 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_async_issue_pending [2023-11-06 21:59:50,894 INFO L130 BoogieDeclarations]: Found specification of procedure __stop_tx [2023-11-06 21:59:50,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __stop_tx [2023-11-06 21:59:50,894 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_start [2023-11-06 21:59:50,894 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_start [2023-11-06 21:59:50,895 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_config_port [2023-11-06 21:59:50,895 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_config_port [2023-11-06 21:59:50,895 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-06 21:59:50,895 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-06 21:59:50,895 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-06 21:59:50,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-06 21:59:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_resume [2023-11-06 21:59:50,902 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_resume [2023-11-06 21:59:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_shutdown [2023-11-06 21:59:50,902 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_shutdown [2023-11-06 21:59:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~X~$Pointer$~TO~VOID [2023-11-06 21:59:50,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~X~$Pointer$~TO~VOID [2023-11-06 21:59:50,903 INFO L130 BoogieDeclarations]: Found specification of procedure autoconfig_has_efr [2023-11-06 21:59:50,903 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconfig_has_efr [2023-11-06 21:59:50,903 INFO L130 BoogieDeclarations]: Found specification of procedure __enable_rsa [2023-11-06 21:59:50,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __enable_rsa [2023-11-06 21:59:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure serial_pnp_resume [2023-11-06 21:59:50,907 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_pnp_resume [2023-11-06 21:59:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_request_std_resource [2023-11-06 21:59:50,908 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_request_std_resource [2023-11-06 21:59:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2023-11-06 21:59:50,908 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2023-11-06 21:59:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_slave_config [2023-11-06 21:59:50,908 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_slave_config [2023-11-06 21:59:50,909 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_rx_dma [2023-11-06 21:59:50,909 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_rx_dma [2023-11-06 21:59:50,909 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-06 21:59:50,909 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-06 21:59:50,909 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-06 21:59:50,910 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-06 21:59:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_resume_port [2023-11-06 21:59:50,910 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_resume_port [2023-11-06 21:59:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure ns16550a_goto_highspeed [2023-11-06 21:59:50,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ns16550a_goto_highspeed [2023-11-06 21:59:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure size_fifo [2023-11-06 21:59:50,911 INFO L138 BoogieDeclarations]: Found implementation of procedure size_fifo [2023-11-06 21:59:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_drvdata [2023-11-06 21:59:50,911 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_drvdata [2023-11-06 21:59:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_remove [2023-11-06 21:59:50,911 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_remove [2023-11-06 21:59:50,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:59:50,912 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_release_port [2023-11-06 21:59:50,912 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_release_port [2023-11-06 21:59:50,912 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2023-11-06 21:59:50,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2023-11-06 21:59:50,912 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_enable_ms [2023-11-06 21:59:50,913 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_enable_ms [2023-11-06 21:59:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_terminate_all [2023-11-06 21:59:50,913 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_terminate_all [2023-11-06 21:59:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_valid [2023-11-06 21:59:50,913 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_valid [2023-11-06 21:59:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_set_sleep [2023-11-06 21:59:50,914 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_set_sleep [2023-11-06 21:59:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_init_fixed_type_port [2023-11-06 21:59:50,914 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_init_fixed_type_port [2023-11-06 21:59:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:59:50,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:59:50,915 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2023-11-06 21:59:50,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2023-11-06 21:59:52,252 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:59:52,267 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:59:53,690 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-06 22:00:16,012 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:00:16,058 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:00:16,058 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:00:16,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:00:16 BoogieIcfgContainer [2023-11-06 22:00:16,068 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:00:16,075 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:00:16,075 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:00:16,080 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:00:16,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:59:44" (1/3) ... [2023-11-06 22:00:16,083 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42001434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:00:16, skipping insertion in model container [2023-11-06 22:00:16,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:49" (2/3) ... [2023-11-06 22:00:16,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42001434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:00:16, skipping insertion in model container [2023-11-06 22:00:16,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:00:16" (3/3) ... [2023-11-06 22:00:16,086 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i [2023-11-06 22:00:16,112 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:00:16,112 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:00:16,304 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:00:16,315 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=LoopsAndPotentialCycles, 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;@6676ec5d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:00:16,315 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:00:16,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 3187 states, 2339 states have (on average 1.4591705857203934) internal successors, (3413), 2432 states have internal predecessors, (3413), 696 states have call successors, (696), 151 states have call predecessors, (696), 150 states have return successors, (689), 661 states have call predecessors, (689), 689 states have call successors, (689) [2023-11-06 22:00:16,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-11-06 22:00:16,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:00:16,439 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:00:16,440 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:00:16,449 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:00:16,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1917373919, now seen corresponding path program 1 times [2023-11-06 22:00:16,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:00:16,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502895084] [2023-11-06 22:00:16,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:16,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:00:17,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:18,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:00:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:18,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:00:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:18,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:00:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:18,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:00:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:18,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:00:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:18,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:00:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:18,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:00:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:18,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:00:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:18,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-06 22:00:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:18,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:00:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:18,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:00:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:18,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-06 22:00:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:18,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:00:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:18,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:00:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:18,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-06 22:00:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:18,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:00:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:19,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:00:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:19,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-06 22:00:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:19,040 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-11-06 22:00:19,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:00:19,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502895084] [2023-11-06 22:00:19,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502895084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:00:19,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:00:19,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:00:19,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730840690] [2023-11-06 22:00:19,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:00:19,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:00:19,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:00:19,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:00:19,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:00:19,114 INFO L87 Difference]: Start difference. First operand has 3187 states, 2339 states have (on average 1.4591705857203934) internal successors, (3413), 2432 states have internal predecessors, (3413), 696 states have call successors, (696), 151 states have call predecessors, (696), 150 states have return successors, (689), 661 states have call predecessors, (689), 689 states have call successors, (689) Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-06 22:00:31,848 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 [] [2023-11-06 22:00:33,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:35,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:37,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:39,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:42,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:44,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:46,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:53,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:55,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:57,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:59,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:01,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:03,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:05,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:09,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:11,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:13,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:18,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:20,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:22,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:24,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:26,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:28,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:33,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:35,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:37,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:39,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:39,095 INFO L93 Difference]: Finished difference Result 7239 states and 11639 transitions. [2023-11-06 22:01:39,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:01:39,098 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 171 [2023-11-06 22:01:39,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:39,199 INFO L225 Difference]: With dead ends: 7239 [2023-11-06 22:01:39,199 INFO L226 Difference]: Without dead ends: 4028 [2023-11-06 22:01:39,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:01:39,250 INFO L413 NwaCegarLoop]: 4083 mSDtfsCounter, 1894 mSDsluCounter, 10018 mSDsCounter, 0 mSdLazyCounter, 6741 mSolverCounterSat, 947 mSolverCounterUnsat, 26 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2080 SdHoareTripleChecker+Valid, 14101 SdHoareTripleChecker+Invalid, 7714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 947 IncrementalHoareTripleChecker+Valid, 6741 IncrementalHoareTripleChecker+Invalid, 26 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:39,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2080 Valid, 14101 Invalid, 7714 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [947 Valid, 6741 Invalid, 26 Unknown, 0 Unchecked, 78.8s Time] [2023-11-06 22:01:39,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4028 states. [2023-11-06 22:01:39,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4028 to 3159. [2023-11-06 22:01:39,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3159 states, 2322 states have (on average 1.429371231696813) internal successors, (3319), 2406 states have internal predecessors, (3319), 687 states have call successors, (687), 150 states have call predecessors, (687), 149 states have return successors, (686), 658 states have call predecessors, (686), 686 states have call successors, (686) [2023-11-06 22:01:39,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3159 states to 3159 states and 4692 transitions. [2023-11-06 22:01:39,824 INFO L78 Accepts]: Start accepts. Automaton has 3159 states and 4692 transitions. Word has length 171 [2023-11-06 22:01:39,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:39,829 INFO L495 AbstractCegarLoop]: Abstraction has 3159 states and 4692 transitions. [2023-11-06 22:01:39,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-06 22:01:39,830 INFO L276 IsEmpty]: Start isEmpty. Operand 3159 states and 4692 transitions. [2023-11-06 22:01:39,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-06 22:01:39,869 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:39,870 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:39,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:01:39,871 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:01:39,871 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:39,872 INFO L85 PathProgramCache]: Analyzing trace with hash -821313289, now seen corresponding path program 1 times [2023-11-06 22:01:39,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:01:39,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450502134] [2023-11-06 22:01:39,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:39,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:01:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:40,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:01:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:40,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:01:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:41,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:01:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:41,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:01:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:41,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:01:41,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:41,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:01:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:41,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:01:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:41,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:01:41,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:41,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-06 22:01:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:41,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:01:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:41,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:01:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:41,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-06 22:01:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:41,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:01:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:41,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:01:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:41,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-06 22:01:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:41,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:01:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:41,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:01:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:41,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 22:01:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:41,433 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-11-06 22:01:41,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:01:41,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450502134] [2023-11-06 22:01:41,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450502134] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:41,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:41,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:01:41,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992362037] [2023-11-06 22:01:41,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:41,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:01:41,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:01:41,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:01:41,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:01:41,440 INFO L87 Difference]: Start difference. First operand 3159 states and 4692 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-06 22:01:49,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:51,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:53,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:55,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:58,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:00,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:02,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:04,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:06,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:08,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:10,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:12,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:17,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:19,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:21,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:28,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:30,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:32,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:34,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:36,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:39,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:40,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:42,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:44,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:46,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:49,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:53,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:57,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:59,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:01,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:04,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:06,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:08,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:10,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:12,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:14,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:16,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:18,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:20,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:23,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:25,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:27,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:28,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:28,953 INFO L93 Difference]: Finished difference Result 9893 states and 15129 transitions. [2023-11-06 22:03:28,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:03:28,954 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 168 [2023-11-06 22:03:28,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:29,017 INFO L225 Difference]: With dead ends: 9893 [2023-11-06 22:03:29,017 INFO L226 Difference]: Without dead ends: 6745 [2023-11-06 22:03:29,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:03:29,037 INFO L413 NwaCegarLoop]: 4151 mSDtfsCounter, 9954 mSDsluCounter, 7914 mSDsCounter, 0 mSdLazyCounter, 5720 mSolverCounterSat, 4890 mSolverCounterUnsat, 37 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 103.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10402 SdHoareTripleChecker+Valid, 12065 SdHoareTripleChecker+Invalid, 10647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4890 IncrementalHoareTripleChecker+Valid, 5720 IncrementalHoareTripleChecker+Invalid, 37 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 106.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:29,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10402 Valid, 12065 Invalid, 10647 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4890 Valid, 5720 Invalid, 37 Unknown, 0 Unchecked, 106.2s Time] [2023-11-06 22:03:29,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6745 states. [2023-11-06 22:03:29,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6745 to 5351. [2023-11-06 22:03:29,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5351 states, 3963 states have (on average 1.4176129195054252) internal successors, (5618), 4097 states have internal predecessors, (5618), 1111 states have call successors, (1111), 277 states have call predecessors, (1111), 276 states have return successors, (1110), 1066 states have call predecessors, (1110), 1110 states have call successors, (1110) [2023-11-06 22:03:29,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5351 states to 5351 states and 7839 transitions. [2023-11-06 22:03:29,561 INFO L78 Accepts]: Start accepts. Automaton has 5351 states and 7839 transitions. Word has length 168 [2023-11-06 22:03:29,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:29,562 INFO L495 AbstractCegarLoop]: Abstraction has 5351 states and 7839 transitions. [2023-11-06 22:03:29,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-06 22:03:29,562 INFO L276 IsEmpty]: Start isEmpty. Operand 5351 states and 7839 transitions. [2023-11-06 22:03:29,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-06 22:03:29,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:29,590 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:29,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:03:29,591 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:03:29,591 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:29,591 INFO L85 PathProgramCache]: Analyzing trace with hash -140520746, now seen corresponding path program 1 times [2023-11-06 22:03:29,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:29,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892385674] [2023-11-06 22:03:29,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:29,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat