./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 709e000bdea0bf1517f1edc69f1d5199e729e3cf1effc12ce3f796e9f1102469 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:49:27,734 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:49:27,860 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:49:27,868 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:49:27,869 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:49:27,933 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:49:27,933 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:49:27,934 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:49:27,935 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:49:27,940 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:49:27,942 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:49:27,942 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:49:27,943 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:49:27,945 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:49:27,945 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:49:27,946 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:49:27,946 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:49:27,947 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:49:27,947 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:49:27,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:49:27,948 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:49:27,948 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:49:27,949 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:49:27,950 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:49:27,950 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:49:27,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:49:27,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:49:27,953 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:49:27,953 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:49:27,954 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:49:27,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:49:27,956 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:49:27,956 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:49:27,956 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:49:27,956 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:49:27,957 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:49:27,957 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_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 709e000bdea0bf1517f1edc69f1d5199e729e3cf1effc12ce3f796e9f1102469 [2023-11-19 07:49:28,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:49:28,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:49:28,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:49:28,342 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:49:28,343 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:49:28,345 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i [2023-11-19 07:49:31,459 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:49:32,151 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:49:32,151 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i [2023-11-19 07:49:32,196 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/data/79a1333bb/c7cf006828394dbf86a1a8bebe521c54/FLAG83ddce66f [2023-11-19 07:49:32,214 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/data/79a1333bb/c7cf006828394dbf86a1a8bebe521c54 [2023-11-19 07:49:32,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:49:32,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:49:32,225 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:49:32,226 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:49:32,232 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:49:32,233 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:32" (1/1) ... [2023-11-19 07:49:32,233 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ed37dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:32, skipping insertion in model container [2023-11-19 07:49:32,234 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:32" (1/1) ... [2023-11-19 07:49:32,356 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:49:34,315 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_09f0e035-e168-473e-af57-f5dabe5a2c41/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i[185756,185769] [2023-11-19 07:49:34,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:49:34,483 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:49:34,560 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; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [2235-2236] [2023-11-19 07:49:34,563 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; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [2246-2247] [2023-11-19 07:49:34,563 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; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [2250-2251] [2023-11-19 07:49:34,565 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; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [2254-2255] [2023-11-19 07:49:34,565 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; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [2258-2259] [2023-11-19 07:49:34,703 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrl %1,%0": "=r" (r): "rm" (x), "0" (-1)); [3367] [2023-11-19 07:49:34,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (buf + i): "ebx"); [4766] [2023-11-19 07:49:34,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (buf + i): "ebx"); [4769] [2023-11-19 07:49:34,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (buf + i): "ebx"); [4772] [2023-11-19 07:49:34,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (buf + i): "ebx"); [4775] [2023-11-19 07:49:34,814 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (buf + i): "ebx"); [4778] [2023-11-19 07:49:34,937 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_09f0e035-e168-473e-af57-f5dabe5a2c41/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i[185756,185769] [2023-11-19 07:49:34,953 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:49:35,227 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:49:35,237 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:49:35,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35 WrapperNode [2023-11-19 07:49:35,238 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:49:35,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:49:35,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:49:35,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:49:35,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:35,385 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:35,658 INFO L138 Inliner]: procedures = 286, calls = 2243, calls flagged for inlining = 112, calls inlined = 107, statements flattened = 6016 [2023-11-19 07:49:35,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:49:35,660 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:49:35,660 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:49:35,660 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:49:35,672 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:35,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:35,773 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:35,782 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:35,954 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:35,993 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:36,023 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:36,050 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:36,185 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:49:36,190 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:49:36,191 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:49:36,191 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:49:36,192 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (1/1) ... [2023-11-19 07:49:36,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:49:36,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:36,229 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:36,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:49:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_perm_bits [2023-11-19 07:49:36,283 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_perm_bits [2023-11-19 07:49:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_intx_disable [2023-11-19 07:49:36,283 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_intx_disable [2023-11-19 07:49:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_find_cap_start [2023-11-19 07:49:36,284 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_find_cap_start [2023-11-19 07:49:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_intx_unmask_handler [2023-11-19 07:49:36,284 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_intx_unmask_handler [2023-11-19 07:49:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:49:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure pci_intx [2023-11-19 07:49:36,289 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_intx [2023-11-19 07:49:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:49:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure free_perm_bits [2023-11-19 07:49:36,289 INFO L138 BoogieDeclarations]: Found implementation of procedure free_perm_bits [2023-11-19 07:49:36,290 INFO L130 BoogieDeclarations]: Found specification of procedure p_setb [2023-11-19 07:49:36,290 INFO L138 BoogieDeclarations]: Found implementation of procedure p_setb [2023-11-19 07:49:36,291 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_ioctl [2023-11-19 07:49:36,291 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_ioctl [2023-11-19 07:49:36,292 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2023-11-19 07:49:36,292 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2023-11-19 07:49:36,292 INFO L130 BoogieDeclarations]: Found specification of procedure virqfd_disable [2023-11-19 07:49:36,293 INFO L138 BoogieDeclarations]: Found implementation of procedure virqfd_disable [2023-11-19 07:49:36,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:49:36,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:49:36,294 INFO L130 BoogieDeclarations]: Found specification of procedure pci_user_read_config_word [2023-11-19 07:49:36,294 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_user_read_config_word [2023-11-19 07:49:36,294 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2023-11-19 07:49:36,295 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2023-11-19 07:49:36,295 INFO L130 BoogieDeclarations]: Found specification of procedure p_setd [2023-11-19 07:49:36,295 INFO L138 BoogieDeclarations]: Found implementation of procedure p_setd [2023-11-19 07:49:36,295 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2023-11-19 07:49:36,295 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2023-11-19 07:49:36,295 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 07:49:36,295 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 07:49:36,296 INFO L130 BoogieDeclarations]: Found specification of procedure p_setw [2023-11-19 07:49:36,296 INFO L138 BoogieDeclarations]: Found implementation of procedure p_setw [2023-11-19 07:49:36,296 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:49:36,296 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:49:36,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:49:36,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:49:36,296 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-19 07:49:36,297 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-19 07:49:36,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:49:36,297 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:49:36,297 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-19 07:49:36,297 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-19 07:49:36,297 INFO L130 BoogieDeclarations]: Found specification of procedure pci_reset_function [2023-11-19 07:49:36,297 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_reset_function [2023-11-19 07:49:36,298 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-19 07:49:36,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-19 07:49:36,298 INFO L130 BoogieDeclarations]: Found specification of procedure pcibios_err_to_errno [2023-11-19 07:49:36,298 INFO L138 BoogieDeclarations]: Found implementation of procedure pcibios_err_to_errno [2023-11-19 07:49:36,298 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-19 07:49:36,298 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-19 07:49:36,298 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 07:49:36,299 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 07:49:36,299 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_probe [2023-11-19 07:49:36,299 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_probe [2023-11-19 07:49:36,299 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 07:49:36,299 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 07:49:36,299 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_intx_unmask [2023-11-19 07:49:36,299 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_intx_unmask [2023-11-19 07:49:36,299 INFO L130 BoogieDeclarations]: Found specification of procedure virqfd_deactivate [2023-11-19 07:49:36,300 INFO L138 BoogieDeclarations]: Found implementation of procedure virqfd_deactivate [2023-11-19 07:49:36,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:49:36,300 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 07:49:36,300 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 07:49:36,300 INFO L130 BoogieDeclarations]: Found specification of procedure kasprintf [2023-11-19 07:49:36,300 INFO L138 BoogieDeclarations]: Found implementation of procedure kasprintf [2023-11-19 07:49:36,300 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-11-19 07:49:36,300 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-11-19 07:49:36,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:49:36,301 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_nosync [2023-11-19 07:49:36,301 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_nosync [2023-11-19 07:49:36,301 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-19 07:49:36,301 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-19 07:49:36,301 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-19 07:49:36,301 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_intx_mask [2023-11-19 07:49:36,301 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_intx_mask [2023-11-19 07:49:36,302 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 07:49:36,302 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 07:49:36,302 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fill_vconfig_bytes [2023-11-19 07:49:36,302 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fill_vconfig_bytes [2023-11-19 07:49:36,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:49:36,302 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_intx_set_signal [2023-11-19 07:49:36,302 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_intx_set_signal [2023-11-19 07:49:36,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:49:36,303 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 07:49:36,303 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 07:49:36,303 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2023-11-19 07:49:36,303 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2023-11-19 07:49:36,303 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:49:36,303 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:49:36,303 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_user_config_write [2023-11-19 07:49:36,303 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_user_config_write [2023-11-19 07:49:36,304 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 07:49:36,304 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 07:49:36,304 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 07:49:36,304 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 07:49:36,304 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2023-11-19 07:49:36,304 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2023-11-19 07:49:36,304 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-19 07:49:36,304 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-19 07:49:36,305 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-19 07:49:36,305 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-19 07:49:36,305 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2023-11-19 07:49:36,305 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2023-11-19 07:49:36,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:49:36,305 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-19 07:49:36,305 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-19 07:49:36,305 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2023-11-19 07:49:36,306 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2023-11-19 07:49:36,306 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_rom [2023-11-19 07:49:36,306 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_rom [2023-11-19 07:49:36,306 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_put [2023-11-19 07:49:36,306 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_put [2023-11-19 07:49:36,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:49:36,306 INFO L130 BoogieDeclarations]: Found specification of procedure pci_user_write_config_word [2023-11-19 07:49:36,306 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_user_write_config_word [2023-11-19 07:49:36,307 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_selected_regions [2023-11-19 07:49:36,307 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_selected_regions [2023-11-19 07:49:36,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:49:36,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 07:49:36,307 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 07:49:36,307 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_fdget [2023-11-19 07:49:36,307 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_fdget [2023-11-19 07:49:36,307 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_mem_readwrite [2023-11-19 07:49:36,308 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_mem_readwrite [2023-11-19 07:49:36,308 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 07:49:36,308 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 07:49:36,308 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2023-11-19 07:49:36,308 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2023-11-19 07:49:36,308 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_uninit_perm_bits [2023-11-19 07:49:36,308 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_uninit_perm_bits [2023-11-19 07:49:36,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:49:36,309 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-19 07:49:36,309 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-19 07:49:36,309 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-19 07:49:36,309 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-19 07:49:36,310 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_put [2023-11-19 07:49:36,310 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_put [2023-11-19 07:49:36,310 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-19 07:49:36,310 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-19 07:49:36,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:49:36,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:49:36,310 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_default_config_write [2023-11-19 07:49:36,310 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_default_config_write [2023-11-19 07:49:36,311 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_send_intx_eventfd [2023-11-19 07:49:36,311 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_send_intx_eventfd [2023-11-19 07:49:36,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:49:36,311 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_msi_set_block [2023-11-19 07:49:36,311 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_msi_set_block [2023-11-19 07:49:36,311 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_user_config_read [2023-11-19 07:49:36,311 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_user_config_read [2023-11-19 07:49:36,312 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_default_config_read [2023-11-19 07:49:36,312 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_default_config_read [2023-11-19 07:49:36,312 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-19 07:49:36,312 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-19 07:49:36,312 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_virqfd_exit [2023-11-19 07:49:36,312 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_virqfd_exit [2023-11-19 07:49:36,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:49:36,312 INFO L130 BoogieDeclarations]: Found specification of procedure pci_user_write_config_dword [2023-11-19 07:49:36,313 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_user_write_config_dword [2023-11-19 07:49:36,313 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_signal [2023-11-19 07:49:36,313 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_signal [2023-11-19 07:49:36,313 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_rom [2023-11-19 07:49:36,313 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_rom [2023-11-19 07:49:36,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:49:36,313 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2023-11-19 07:49:36,314 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2023-11-19 07:49:36,314 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-19 07:49:36,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-19 07:49:36,314 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_get_irq_count [2023-11-19 07:49:36,314 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_get_irq_count [2023-11-19 07:49:36,314 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-19 07:49:36,314 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-19 07:49:36,314 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_set_irqs_ioctl [2023-11-19 07:49:36,315 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_set_irqs_ioctl [2023-11-19 07:49:36,315 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-19 07:49:36,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-19 07:49:36,315 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_config_do_rw [2023-11-19 07:49:36,315 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_config_do_rw [2023-11-19 07:49:36,315 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_msi_disable [2023-11-19 07:49:36,315 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_msi_disable [2023-11-19 07:49:36,315 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-11-19 07:49:36,316 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-11-19 07:49:36,316 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_mmap [2023-11-19 07:49:36,316 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_mmap [2023-11-19 07:49:36,316 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-19 07:49:36,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-19 07:49:36,316 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 07:49:36,316 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 07:49:36,316 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_msi_set_vector_signal [2023-11-19 07:49:36,317 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_msi_set_vector_signal [2023-11-19 07:49:36,317 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2023-11-19 07:49:36,317 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2023-11-19 07:49:36,317 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-19 07:49:36,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-19 07:49:36,317 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-11-19 07:49:36,317 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-11-19 07:49:36,317 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_io_readwrite [2023-11-19 07:49:36,318 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_io_readwrite [2023-11-19 07:49:36,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:49:36,318 INFO L130 BoogieDeclarations]: Found specification of procedure pci_load_and_free_saved_state [2023-11-19 07:49:36,318 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_load_and_free_saved_state [2023-11-19 07:49:36,318 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_config_readwrite [2023-11-19 07:49:36,318 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_config_readwrite [2023-11-19 07:49:36,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:49:36,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:49:36,319 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 07:49:36,319 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 07:49:37,156 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:49:37,167 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:49:37,600 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 07:49:38,101 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765: assume 0 == #t~mem205#1 % 18446744073709551616;#t~nondet206#1 := 0; [2023-11-19 07:49:38,102 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765: assume !(0 == #t~mem205#1 % 18446744073709551616); [2023-11-19 07:49:38,102 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-2: assume 512 == #t~mem205#1 % 18446744073709551616;#t~nondet206#1 := #t~mem205#1; [2023-11-19 07:49:38,102 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-2: assume !(512 == #t~mem205#1 % 18446744073709551616);assume #t~nondet206#1 % 18446744073709551616 <= #t~mem205#1 % 18446744073709551616;assume #t~nondet206#1 % 18446744073709551616 <= 512; [2023-11-19 07:49:38,102 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-5: assume #t~short208#1;call #t~mem207#1 := read~int(~#info___0~0#1.base, 16 + ~#info___0~0#1.offset, 8);#t~short208#1 := #t~mem207#1 % 18446744073709551616 > 4095; [2023-11-19 07:49:38,102 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-5: assume !#t~short208#1; [2023-11-19 07:49:38,103 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-4: #t~short208#1 := 0 != #t~nondet206#1 % 18446744073709551616; [2023-11-19 07:49:38,103 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-7: assume #t~short208#1;havoc #t~mem204#1;havoc #t~mem205#1;havoc #t~nondet206#1;havoc #t~mem207#1;havoc #t~short208#1;call #t~mem209#1 := read~int(~#info___0~0#1.base, 4 + ~#info___0~0#1.offset, 4); [2023-11-19 07:49:38,103 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-7: assume !#t~short208#1;havoc #t~mem204#1;havoc #t~mem205#1;havoc #t~nondet206#1;havoc #t~mem207#1;havoc #t~short208#1; [2023-11-19 07:49:38,103 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L2766: assume 0 == #t~mem209#1 % 4294967296 || 4 == #t~mem209#1 % 4294967296;#t~nondet210#1 := 4; [2023-11-19 07:49:38,103 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L2766: assume !(0 == #t~mem209#1 % 4294967296 || 4 == #t~mem209#1 % 4294967296); [2023-11-19 07:49:38,104 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L2766-2: assume false;#t~nondet210#1 := #t~mem209#1; [2023-11-19 07:49:38,104 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L2766-2: assume !false;assume #t~nondet210#1 % 4294967296 >= #t~mem209#1 % 4294967296;assume #t~nondet210#1 % 4294967296 >= 4;assume #t~nondet210#1 % 4294967296 <= 4 + #t~mem209#1 % 4294967296; [2023-11-19 07:49:38,104 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L2766-4: call write~int(#t~nondet210#1, ~#info___0~0#1.base, 4 + ~#info___0~0#1.offset, 4);havoc #t~mem209#1;havoc #t~nondet210#1; [2023-11-19 07:49:38,104 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754: assume #t~short198#1;havoc #t~mem192#1;havoc #t~mem193#1;havoc #t~mem194#1;havoc #t~mem196#1;havoc #t~mem195#1;havoc #t~mem197#1;havoc #t~short198#1;call #t~mem199#1 := read~int(~#info___0~0#1.base, 8 + ~#info___0~0#1.offset, 4);call #t~mem201#1 := read~int(~pdev~2#1.base, 8 + (1242 + ~pdev~2#1.offset + 56 * (if #t~mem199#1 % 4294967296 % 18446744073709551616 <= 9223372036854775807 then #t~mem199#1 % 4294967296 % 18446744073709551616 else #t~mem199#1 % 4294967296 % 18446744073709551616 - 18446744073709551616)), 8);call #t~mem200#1 := read~int(~#info___0~0#1.base, 8 + ~#info___0~0#1.offset, 4);call #t~mem202#1 := read~int(~pdev~2#1.base, 1242 + ~pdev~2#1.offset + 56 * (if #t~mem200#1 % 4294967296 % 18446744073709551616 <= 9223372036854775807 then #t~mem200#1 % 4294967296 % 18446744073709551616 else #t~mem200#1 % 4294967296 % 18446744073709551616 - 18446744073709551616), 8);call write~int(1 + (#t~mem201#1 - #t~mem202#1), ~#info___0~0#1.base, 16 + ~#info___0~0#1.offset, 8);havoc #t~mem199#1;havoc #t~mem201#1;havoc #t~mem200#1;havoc #t~mem202#1; [2023-11-19 07:49:38,104 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754: assume !#t~short198#1;havoc #t~mem192#1;havoc #t~mem193#1;havoc #t~mem194#1;havoc #t~mem196#1;havoc #t~mem195#1;havoc #t~mem197#1;havoc #t~short198#1;call write~int(0, ~#info___0~0#1.base, 16 + ~#info___0~0#1.offset, 8); [2023-11-19 07:49:38,105 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754-2: call #t~mem203#1 := read~int(~#info___0~0#1.base, 16 + ~#info___0~0#1.offset, 8); [2023-11-19 07:49:38,105 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume #t~short198#1; [2023-11-19 07:49:38,105 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !#t~short198#1;call #t~mem194#1 := read~int(~#info___0~0#1.base, 8 + ~#info___0~0#1.offset, 4);call #t~mem196#1 := read~int(~pdev~2#1.base, 8 + (1242 + ~pdev~2#1.offset + 56 * (if #t~mem194#1 % 4294967296 % 18446744073709551616 <= 9223372036854775807 then #t~mem194#1 % 4294967296 % 18446744073709551616 else #t~mem194#1 % 4294967296 % 18446744073709551616 - 18446744073709551616)), 8);call #t~mem195#1 := read~int(~#info___0~0#1.base, 8 + ~#info___0~0#1.offset, 4);call #t~mem197#1 := read~int(~pdev~2#1.base, 1242 + ~pdev~2#1.offset + 56 * (if #t~mem195#1 % 4294967296 % 18446744073709551616 <= 9223372036854775807 then #t~mem195#1 % 4294967296 % 18446744073709551616 else #t~mem195#1 % 4294967296 % 18446744073709551616 - 18446744073709551616), 8);#t~short198#1 := #t~mem196#1 % 18446744073709551616 != #t~mem197#1 % 18446744073709551616; [2023-11-19 07:49:38,105 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L2759: assume 0 == #t~mem203#1 % 18446744073709551616;havoc #t~mem203#1;call write~int(0, ~#info___0~0#1.base, 4 + ~#info___0~0#1.offset, 4); [2023-11-19 07:49:38,105 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L2759: assume !(0 == #t~mem203#1 % 18446744073709551616);havoc #t~mem203#1;call write~int(3, ~#info___0~0#1.base, 4 + ~#info___0~0#1.offset, 4);call #t~mem204#1 := read~int(~#info___0~0#1.base, 8 + ~#info___0~0#1.offset, 4);call #t~mem205#1 := read~int(~pdev~2#1.base, 24 + (1242 + ~pdev~2#1.offset + 56 * (if #t~mem204#1 % 4294967296 % 18446744073709551616 <= 9223372036854775807 then #t~mem204#1 % 4294967296 % 18446744073709551616 else #t~mem204#1 % 4294967296 % 18446744073709551616 - 18446744073709551616)), 8); [2023-11-19 07:49:43,093 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:49:43,117 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:49:43,117 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:49:43,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:43 BoogieIcfgContainer [2023-11-19 07:49:43,132 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:49:43,135 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:49:43,135 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:49:43,139 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:49:43,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:49:32" (1/3) ... [2023-11-19 07:49:43,140 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b56e206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:43, skipping insertion in model container [2023-11-19 07:49:43,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:35" (2/3) ... [2023-11-19 07:49:43,141 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b56e206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:43, skipping insertion in model container [2023-11-19 07:49:43,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:43" (3/3) ... [2023-11-19 07:49:43,142 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i [2023-11-19 07:49:43,164 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:49:43,164 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:49:43,276 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:49:43,286 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@634111d1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:49:43,286 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:49:43,302 INFO L276 IsEmpty]: Start isEmpty. Operand has 2086 states, 1554 states have (on average 1.4568854568854568) internal successors, (2264), 1587 states have internal predecessors, (2264), 433 states have call successors, (433), 97 states have call predecessors, (433), 97 states have return successors, (433), 428 states have call predecessors, (433), 433 states have call successors, (433) [2023-11-19 07:49:43,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:49:43,337 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:43,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:43,338 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:43,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:43,344 INFO L85 PathProgramCache]: Analyzing trace with hash 144560094, now seen corresponding path program 1 times [2023-11-19 07:49:43,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:43,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472963466] [2023-11-19 07:49:43,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:43,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:43,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:49:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:44,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:44,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:49:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:44,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:49:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:44,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:44,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:44,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472963466] [2023-11-19 07:49:44,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472963466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:44,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:44,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:49:44,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324672636] [2023-11-19 07:49:44,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:44,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:49:44,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:44,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:49:44,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:49:44,154 INFO L87 Difference]: Start difference. First operand has 2086 states, 1554 states have (on average 1.4568854568854568) internal successors, (2264), 1587 states have internal predecessors, (2264), 433 states have call successors, (433), 97 states have call predecessors, (433), 97 states have return successors, (433), 428 states have call predecessors, (433), 433 states have call successors, (433) Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:49:44,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:44,653 INFO L93 Difference]: Finished difference Result 4426 states and 6724 transitions. [2023-11-19 07:49:44,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:49:44,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2023-11-19 07:49:44,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:44,701 INFO L225 Difference]: With dead ends: 4426 [2023-11-19 07:49:44,701 INFO L226 Difference]: Without dead ends: 2335 [2023-11-19 07:49:44,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:49:44,728 INFO L413 NwaCegarLoop]: 3114 mSDtfsCounter, 368 mSDsluCounter, 3083 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 6197 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:44,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 6197 Invalid, 29 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:49:44,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2335 states. [2023-11-19 07:49:44,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2335 to 2325. [2023-11-19 07:49:44,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2325 states, 1707 states have (on average 1.440538957234915) internal successors, (2459), 1743 states have internal predecessors, (2459), 506 states have call successors, (506), 112 states have call predecessors, (506), 111 states have return successors, (501), 495 states have call predecessors, (501), 501 states have call successors, (501) [2023-11-19 07:49:44,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2325 states to 2325 states and 3466 transitions. [2023-11-19 07:49:44,992 INFO L78 Accepts]: Start accepts. Automaton has 2325 states and 3466 transitions. Word has length 50 [2023-11-19 07:49:44,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:44,992 INFO L495 AbstractCegarLoop]: Abstraction has 2325 states and 3466 transitions. [2023-11-19 07:49:44,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:49:44,993 INFO L276 IsEmpty]: Start isEmpty. Operand 2325 states and 3466 transitions. [2023-11-19 07:49:44,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-19 07:49:44,999 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:45,000 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:45,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:49:45,000 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:45,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:45,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1720894770, now seen corresponding path program 1 times [2023-11-19 07:49:45,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:45,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496667534] [2023-11-19 07:49:45,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:45,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:49:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:49:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-19 07:49:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:49:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:49:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:45,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:49:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-19 07:49:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:45,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:49:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-19 07:49:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:49:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-19 07:49:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:49:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-19 07:49:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:49:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-19 07:49:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:45,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:49:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:45,728 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-19 07:49:45,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:45,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496667534] [2023-11-19 07:49:45,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496667534] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:45,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:45,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:49:45,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851318266] [2023-11-19 07:49:45,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:45,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:49:45,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:45,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:49:45,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:49:45,737 INFO L87 Difference]: Start difference. First operand 2325 states and 3466 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-19 07:49:57,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:57,035 INFO L93 Difference]: Finished difference Result 7244 states and 10921 transitions. [2023-11-19 07:49:57,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:49:57,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 121 [2023-11-19 07:49:57,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:57,077 INFO L225 Difference]: With dead ends: 7244 [2023-11-19 07:49:57,077 INFO L226 Difference]: Without dead ends: 4922 [2023-11-19 07:49:57,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:49:57,090 INFO L413 NwaCegarLoop]: 5055 mSDtfsCounter, 3589 mSDsluCounter, 8012 mSDsCounter, 0 mSdLazyCounter, 4475 mSolverCounterSat, 722 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3951 SdHoareTripleChecker+Valid, 13067 SdHoareTripleChecker+Invalid, 5197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 722 IncrementalHoareTripleChecker+Valid, 4475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:57,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3951 Valid, 13067 Invalid, 5197 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [722 Valid, 4475 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2023-11-19 07:49:57,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4922 states. [2023-11-19 07:49:57,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4922 to 4390. [2023-11-19 07:49:57,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4390 states, 3263 states have (on average 1.4422310756972112) internal successors, (4706), 3326 states have internal predecessors, (4706), 908 states have call successors, (908), 219 states have call predecessors, (908), 218 states have return successors, (903), 892 states have call predecessors, (903), 903 states have call successors, (903) [2023-11-19 07:49:57,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4390 states to 4390 states and 6517 transitions. [2023-11-19 07:49:57,369 INFO L78 Accepts]: Start accepts. Automaton has 4390 states and 6517 transitions. Word has length 121 [2023-11-19 07:49:57,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:57,370 INFO L495 AbstractCegarLoop]: Abstraction has 4390 states and 6517 transitions. [2023-11-19 07:49:57,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-19 07:49:57,371 INFO L276 IsEmpty]: Start isEmpty. Operand 4390 states and 6517 transitions. [2023-11-19 07:49:57,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2023-11-19 07:49:57,376 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:57,377 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:57,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:49:57,377 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:49:57,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:57,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1568193515, now seen corresponding path program 1 times [2023-11-19 07:49:57,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:57,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282895245] [2023-11-19 07:49:57,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:57,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:57,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:49:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:57,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:57,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:57,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:57,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:49:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:57,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:57,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:57,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-19 07:49:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:49:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:58,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-19 07:49:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:49:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-19 07:49:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:49:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-19 07:49:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:49:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-11-19 07:49:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:49:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:58,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-11-19 07:49:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:58,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:49:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:49:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:58,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1645 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1627 trivial. 0 not checked. [2023-11-19 07:49:58,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:58,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282895245] [2023-11-19 07:49:58,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282895245] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:49:58,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081460221] [2023-11-19 07:49:58,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:58,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:58,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:58,644 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:58,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:49:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:59,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 3463 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:49:59,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:00,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1645 backedges. 426 proven. 0 refuted. 0 times theorem prover too weak. 1219 trivial. 0 not checked. [2023-11-19 07:50:00,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:50:00,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081460221] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:00,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:50:00,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2023-11-19 07:50:00,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712503482] [2023-11-19 07:50:00,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:00,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:00,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:00,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:00,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:50:00,019 INFO L87 Difference]: Start difference. First operand 4390 states and 6517 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 07:50:00,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:00,220 INFO L93 Difference]: Finished difference Result 8780 states and 13053 transitions. [2023-11-19 07:50:00,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:00,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 348 [2023-11-19 07:50:00,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:00,257 INFO L225 Difference]: With dead ends: 8780 [2023-11-19 07:50:00,257 INFO L226 Difference]: Without dead ends: 4393 [2023-11-19 07:50:00,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:50:00,280 INFO L413 NwaCegarLoop]: 3108 mSDtfsCounter, 0 mSDsluCounter, 3104 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6212 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:00,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6212 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:00,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4393 states. [2023-11-19 07:50:00,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4393 to 4393. [2023-11-19 07:50:00,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4393 states, 3266 states have (on average 1.4418248622167789) internal successors, (4709), 3329 states have internal predecessors, (4709), 908 states have call successors, (908), 219 states have call predecessors, (908), 218 states have return successors, (903), 892 states have call predecessors, (903), 903 states have call successors, (903) [2023-11-19 07:50:00,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4393 states to 4393 states and 6520 transitions. [2023-11-19 07:50:00,583 INFO L78 Accepts]: Start accepts. Automaton has 4393 states and 6520 transitions. Word has length 348 [2023-11-19 07:50:00,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:00,586 INFO L495 AbstractCegarLoop]: Abstraction has 4393 states and 6520 transitions. [2023-11-19 07:50:00,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 07:50:00,586 INFO L276 IsEmpty]: Start isEmpty. Operand 4393 states and 6520 transitions. [2023-11-19 07:50:00,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2023-11-19 07:50:00,594 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:00,595 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:00,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:00,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:00,821 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:00,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:00,821 INFO L85 PathProgramCache]: Analyzing trace with hash -977212567, now seen corresponding path program 1 times [2023-11-19 07:50:00,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:00,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764941582] [2023-11-19 07:50:00,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:00,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:01,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:50:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:01,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:01,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:01,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:01,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:01,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:01,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:01,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:01,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-19 07:50:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:01,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:01,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:01,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:01,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:01,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:01,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:01,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:01,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-19 07:50:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-19 07:50:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-19 07:50:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-11-19 07:50:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:02,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-11-19 07:50:02,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:02,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1645 backedges. 5 proven. 90 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2023-11-19 07:50:02,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:02,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764941582] [2023-11-19 07:50:02,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764941582] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:02,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538516058] [2023-11-19 07:50:02,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:02,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:02,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:02,570 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:02,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:50:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:04,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 3498 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:50:04,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:04,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1645 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1645 trivial. 0 not checked. [2023-11-19 07:50:04,150 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:50:04,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538516058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:04,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:50:04,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-11-19 07:50:04,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47798445] [2023-11-19 07:50:04,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:04,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:04,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:04,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:04,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:50:04,162 INFO L87 Difference]: Start difference. First operand 4393 states and 6520 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 07:50:04,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:04,389 INFO L93 Difference]: Finished difference Result 4411 states and 6540 transitions. [2023-11-19 07:50:04,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:04,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 348 [2023-11-19 07:50:04,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:04,445 INFO L225 Difference]: With dead ends: 4411 [2023-11-19 07:50:04,445 INFO L226 Difference]: Without dead ends: 4402 [2023-11-19 07:50:04,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:50:04,453 INFO L413 NwaCegarLoop]: 3118 mSDtfsCounter, 3104 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3104 SdHoareTripleChecker+Valid, 3128 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:04,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3104 Valid, 3128 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:04,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4402 states. [2023-11-19 07:50:04,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4402 to 4393. [2023-11-19 07:50:04,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4393 states, 3266 states have (on average 1.4415186772810777) internal successors, (4708), 3329 states have internal predecessors, (4708), 908 states have call successors, (908), 219 states have call predecessors, (908), 218 states have return successors, (903), 892 states have call predecessors, (903), 903 states have call successors, (903) [2023-11-19 07:50:04,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4393 states to 4393 states and 6519 transitions. [2023-11-19 07:50:04,772 INFO L78 Accepts]: Start accepts. Automaton has 4393 states and 6519 transitions. Word has length 348 [2023-11-19 07:50:04,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:04,774 INFO L495 AbstractCegarLoop]: Abstraction has 4393 states and 6519 transitions. [2023-11-19 07:50:04,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 07:50:04,776 INFO L276 IsEmpty]: Start isEmpty. Operand 4393 states and 6519 transitions. [2023-11-19 07:50:04,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2023-11-19 07:50:04,784 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:04,785 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:04,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:05,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-19 07:50:05,013 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:05,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:05,013 INFO L85 PathProgramCache]: Analyzing trace with hash -919954265, now seen corresponding path program 1 times [2023-11-19 07:50:05,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:05,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140607027] [2023-11-19 07:50:05,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:05,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:05,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:50:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:05,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:05,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:05,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:05,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:05,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:05,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:05,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:05,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-19 07:50:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:05,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:05,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:05,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:05,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:05,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:05,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:05,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-19 07:50:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:05,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:05,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:05,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:05,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:05,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-19 07:50:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:06,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-19 07:50:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-11-19 07:50:06,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:06,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-11-19 07:50:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:06,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1645 backedges. 5 proven. 90 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2023-11-19 07:50:06,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:06,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140607027] [2023-11-19 07:50:06,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140607027] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:06,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684794813] [2023-11-19 07:50:06,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:06,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:06,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:06,375 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:06,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:50:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:07,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 3491 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:50:07,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:08,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1645 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1645 trivial. 0 not checked. [2023-11-19 07:50:08,364 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:50:08,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684794813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:08,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:50:08,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-11-19 07:50:08,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556277586] [2023-11-19 07:50:08,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:08,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:08,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:08,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:08,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:50:08,367 INFO L87 Difference]: Start difference. First operand 4393 states and 6519 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 07:50:08,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:08,641 INFO L93 Difference]: Finished difference Result 5655 states and 8287 transitions. [2023-11-19 07:50:08,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:08,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 348 [2023-11-19 07:50:08,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:08,687 INFO L225 Difference]: With dead ends: 5655 [2023-11-19 07:50:08,687 INFO L226 Difference]: Without dead ends: 5651 [2023-11-19 07:50:08,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:50:08,693 INFO L413 NwaCegarLoop]: 3105 mSDtfsCounter, 3001 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3001 SdHoareTripleChecker+Valid, 3999 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:08,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3001 Valid, 3999 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:08,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5651 states. [2023-11-19 07:50:09,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5651 to 5649. [2023-11-19 07:50:09,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5649 states, 4178 states have (on average 1.426280516993777) internal successors, (5959), 4269 states have internal predecessors, (5959), 1162 states have call successors, (1162), 309 states have call predecessors, (1162), 308 states have return successors, (1159), 1142 states have call predecessors, (1159), 1159 states have call successors, (1159) [2023-11-19 07:50:09,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5649 states to 5649 states and 8280 transitions. [2023-11-19 07:50:09,145 INFO L78 Accepts]: Start accepts. Automaton has 5649 states and 8280 transitions. Word has length 348 [2023-11-19 07:50:09,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:09,147 INFO L495 AbstractCegarLoop]: Abstraction has 5649 states and 8280 transitions. [2023-11-19 07:50:09,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 07:50:09,147 INFO L276 IsEmpty]: Start isEmpty. Operand 5649 states and 8280 transitions. [2023-11-19 07:50:09,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2023-11-19 07:50:09,155 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:09,156 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:09,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:09,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:09,369 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:09,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:09,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1545450786, now seen corresponding path program 1 times [2023-11-19 07:50:09,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:09,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187223037] [2023-11-19 07:50:09,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:09,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:09,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:50:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-19 07:50:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:10,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-19 07:50:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-19 07:50:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-19 07:50:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-11-19 07:50:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-11-19 07:50:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:50:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:50:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:50:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1645 backedges. 5 proven. 90 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2023-11-19 07:50:10,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:10,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187223037] [2023-11-19 07:50:10,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187223037] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:10,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605168534] [2023-11-19 07:50:10,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:10,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:10,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:10,685 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:10,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09f0e035-e168-473e-af57-f5dabe5a2c41/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:50:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:12,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 3493 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:50:12,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:12,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1645 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1645 trivial. 0 not checked. [2023-11-19 07:50:12,902 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:50:12,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605168534] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:12,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:50:12,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-11-19 07:50:12,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867245118] [2023-11-19 07:50:12,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:12,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:12,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:12,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.