./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB --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 be936ec9376452d086f72aa92ac4fe7deb233a068e40e0ed8f478fbc228d19b6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:20:34,545 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:20:34,672 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 02:20:34,686 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:20:34,687 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:20:34,740 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:20:34,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:20:34,742 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:20:34,743 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:20:34,743 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:20:34,743 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:20:34,743 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:20:34,745 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:20:34,745 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:20:34,745 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:20:34,746 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:20:34,746 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:20:34,747 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:20:34,748 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:20:34,748 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:20:34,748 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:20:34,748 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:20:34,748 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:20:34,748 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:20:34,749 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:20:34,749 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:20:34,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:20:34,749 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:20:34,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:20:34,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:20:34,749 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:20:34,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:20:34,749 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:20:34,750 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:20:34,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:20:34,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:20:34,750 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:20:34,750 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:20:34,750 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:20:34,750 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:20:34,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:20:34,750 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:20:34,750 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:20:34,750 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:20:34,751 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:20:34,751 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB 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 -> be936ec9376452d086f72aa92ac4fe7deb233a068e40e0ed8f478fbc228d19b6 [2024-11-28 02:20:35,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:20:35,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:20:35,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:20:35,181 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:20:35,182 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:20:35,183 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2024-11-28 02:20:39,004 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/data/02dd1700b/d38ccffe300044b6bc34c5c1c734827b/FLAG05bbc0f72 [2024-11-28 02:20:39,746 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:20:39,748 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2024-11-28 02:20:39,793 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/data/02dd1700b/d38ccffe300044b6bc34c5c1c734827b/FLAG05bbc0f72 [2024-11-28 02:20:39,815 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/data/02dd1700b/d38ccffe300044b6bc34c5c1c734827b [2024-11-28 02:20:39,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:20:39,821 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:20:39,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:20:39,825 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:20:39,832 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:20:39,833 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:20:39" (1/1) ... [2024-11-28 02:20:39,834 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa481d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:39, skipping insertion in model container [2024-11-28 02:20:39,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:20:39" (1/1) ... [2024-11-28 02:20:39,968 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:20:41,166 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i[164250,164263] [2024-11-28 02:20:41,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:20:41,735 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:20:41,942 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5441] [2024-11-28 02:20:41,945 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; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5448] [2024-11-28 02:20:41,947 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; btr %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5456-5457] [2024-11-28 02:20:41,952 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; incl %0": "+m" (v->counter)); [5485] [2024-11-28 02:20:41,954 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": "+m" (v->counter)); [5492] [2024-11-28 02:20:41,978 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i[164250,164263] [2024-11-28 02:20:42,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/6225/dscv_tempdir/dscv/ri/144_2a/drivers/net/can/usb/ems_usb.o.c.prepared"), "i" (546), "i" (12UL)); [6159-6160] [2024-11-28 02:20:42,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:20:42,290 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:20:42,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:42 WrapperNode [2024-11-28 02:20:42,292 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:20:42,294 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:20:42,294 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:20:42,294 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:20:42,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:42" (1/1) ... [2024-11-28 02:20:42,391 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:42" (1/1) ... [2024-11-28 02:20:42,560 INFO L138 Inliner]: procedures = 168, calls = 765, calls flagged for inlining = 78, calls inlined = 78, statements flattened = 2252 [2024-11-28 02:20:42,560 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:20:42,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:20:42,561 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:20:42,561 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:20:42,577 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:42" (1/1) ... [2024-11-28 02:20:42,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:42" (1/1) ... [2024-11-28 02:20:42,613 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:42" (1/1) ... [2024-11-28 02:20:43,076 INFO L175 MemorySlicer]: Split 454 memory accesses to 8 slices as follows [2, 44, 20, 9, 9, 342, 20, 8]. 75 percent of accesses are in the largest equivalence class. The 44 initializations are split as follows [2, 0, 0, 0, 0, 34, 0, 8]. The 224 writes are split as follows [0, 44, 11, 0, 5, 164, 0, 0]. [2024-11-28 02:20:43,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:42" (1/1) ... [2024-11-28 02:20:43,081 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:42" (1/1) ... [2024-11-28 02:20:43,187 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:42" (1/1) ... [2024-11-28 02:20:43,194 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:42" (1/1) ... [2024-11-28 02:20:43,214 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:42" (1/1) ... [2024-11-28 02:20:43,242 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:42" (1/1) ... [2024-11-28 02:20:43,262 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:42" (1/1) ... [2024-11-28 02:20:43,329 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:20:43,331 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:20:43,333 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:20:43,333 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:20:43,334 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:42" (1/1) ... [2024-11-28 02:20:43,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:20:43,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:20:43,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:20:43,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:20:43,433 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-11-28 02:20:43,433 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-11-28 02:20:43,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 02:20:43,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 02:20:43,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 02:20:43,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 02:20:43,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 02:20:43,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 02:20:43,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 02:20:43,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-28 02:20:43,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_18 [2024-11-28 02:20:43,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_18 [2024-11-28 02:20:43,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2024-11-28 02:20:43,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2024-11-28 02:20:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2024-11-28 02:20:43,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2024-11-28 02:20:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2024-11-28 02:20:43,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2024-11-28 02:20:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-28 02:20:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-28 02:20:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-28 02:20:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-28 02:20:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-28 02:20:43,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-28 02:20:43,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-28 02:20:43,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-28 02:20:43,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 02:20:43,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 02:20:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 02:20:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 02:20:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 02:20:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 02:20:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 02:20:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-28 02:20:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-28 02:20:43,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-28 02:20:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:20:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:20:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:20:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 02:20:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 02:20:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 02:20:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 02:20:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 02:20:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-28 02:20:43,443 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-28 02:20:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_bulk_callback [2024-11-28 02:20:43,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_bulk_callback [2024-11-28 02:20:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2024-11-28 02:20:43,443 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2024-11-28 02:20:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-11-28 02:20:43,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-11-28 02:20:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2024-11-28 02:20:43,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2024-11-28 02:20:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-28 02:20:43,444 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-28 02:20:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-28 02:20:43,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-28 02:20:43,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-28 02:20:43,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-28 02:20:43,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-11-28 02:20:43,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-11-28 02:20:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-28 02:20:43,449 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-28 02:20:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2024-11-28 02:20:43,449 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2024-11-28 02:20:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-28 02:20:43,449 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-28 02:20:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2024-11-28 02:20:43,449 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2024-11-28 02:20:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:20:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:20:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:20:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 02:20:43,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 02:20:43,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 02:20:43,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 02:20:43,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 02:20:43,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-28 02:20:43,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-28 02:20:43,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-28 02:20:43,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-28 02:20:43,450 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:20:43,450 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:20:43,450 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-28 02:20:43,450 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-28 02:20:43,450 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2024-11-28 02:20:43,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2024-11-28 02:20:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:20:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-11-28 02:20:43,451 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-11-28 02:20:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-28 02:20:43,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-28 02:20:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2024-11-28 02:20:43,451 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2024-11-28 02:20:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:20:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-28 02:20:43,452 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-28 02:20:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-28 02:20:43,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-28 02:20:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:20:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 02:20:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 02:20:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 02:20:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 02:20:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 02:20:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 02:20:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 02:20:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-28 02:20:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2024-11-28 02:20:43,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2024-11-28 02:20:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-28 02:20:43,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-28 02:20:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-28 02:20:43,453 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-28 02:20:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2024-11-28 02:20:43,453 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2024-11-28 02:20:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:20:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:20:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 02:20:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 02:20:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 02:20:43,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 02:20:43,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 02:20:43,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 02:20:43,454 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_disconnect [2024-11-28 02:20:43,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_disconnect [2024-11-28 02:20:43,457 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-11-28 02:20:43,457 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-11-28 02:20:43,457 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-11-28 02:20:43,457 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-11-28 02:20:43,457 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_interrupt_callback [2024-11-28 02:20:43,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_interrupt_callback [2024-11-28 02:20:43,457 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-11-28 02:20:43,458 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-11-28 02:20:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:20:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2024-11-28 02:20:43,458 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2024-11-28 02:20:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_rx_err [2024-11-28 02:20:43,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_rx_err [2024-11-28 02:20:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-28 02:20:43,458 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-28 02:20:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-28 02:20:43,458 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-28 02:20:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-28 02:20:43,458 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-28 02:20:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-11-28 02:20:43,458 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-11-28 02:20:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-28 02:20:43,458 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-28 02:20:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-11-28 02:20:43,459 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-11-28 02:20:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-28 02:20:43,459 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-28 02:20:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-28 02:20:43,459 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-28 02:20:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-28 02:20:43,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-28 02:20:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-11-28 02:20:43,459 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-11-28 02:20:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:20:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:20:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:20:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 02:20:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 02:20:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 02:20:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 02:20:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 02:20:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-11-28 02:20:43,460 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-11-28 02:20:43,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-28 02:20:43,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-28 02:20:43,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-28 02:20:43,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-28 02:20:43,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-28 02:20:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-28 02:20:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-28 02:20:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-28 02:20:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-28 02:20:43,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-28 02:20:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:20:43,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:20:44,178 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:20:44,183 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:20:44,334 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-28 02:20:45,342 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-28 02:20:53,027 INFO L? ?]: Removed 977 outVars from TransFormulas that were not future-live. [2024-11-28 02:20:53,028 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:20:53,080 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:20:53,084 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 02:20:53,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:20:53 BoogieIcfgContainer [2024-11-28 02:20:53,085 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:20:53,089 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:20:53,089 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:20:53,095 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:20:53,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:20:39" (1/3) ... [2024-11-28 02:20:53,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439c8d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:20:53, skipping insertion in model container [2024-11-28 02:20:53,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:20:42" (2/3) ... [2024-11-28 02:20:53,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439c8d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:20:53, skipping insertion in model container [2024-11-28 02:20:53,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:20:53" (3/3) ... [2024-11-28 02:20:53,099 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2024-11-28 02:20:53,119 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:20:53,123 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i that has 53 procedures, 784 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-11-28 02:20:53,258 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:20:53,278 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@104041fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:20:53,279 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:20:53,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 782 states, 573 states have (on average 1.343804537521815) internal successors, (770), 599 states have internal predecessors, (770), 157 states have call successors, (157), 52 states have call predecessors, (157), 50 states have return successors, (151), 146 states have call predecessors, (151), 151 states have call successors, (151) [2024-11-28 02:20:53,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 02:20:53,307 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:20:53,308 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:20:53,309 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:20:53,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:20:53,316 INFO L85 PathProgramCache]: Analyzing trace with hash 977399577, now seen corresponding path program 1 times [2024-11-28 02:20:53,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:20:53,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716223784] [2024-11-28 02:20:53,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:20:53,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:20:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:20:57,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:20:57,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:20:57,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716223784] [2024-11-28 02:20:57,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716223784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:20:57,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:20:57,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:20:57,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460118937] [2024-11-28 02:20:57,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:20:57,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:20:57,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:20:57,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:20:57,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:20:57,540 INFO L87 Difference]: Start difference. First operand has 782 states, 573 states have (on average 1.343804537521815) internal successors, (770), 599 states have internal predecessors, (770), 157 states have call successors, (157), 52 states have call predecessors, (157), 50 states have return successors, (151), 146 states have call predecessors, (151), 151 states have call successors, (151) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:21:01,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:21:02,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:21:02,079 INFO L93 Difference]: Finished difference Result 2302 states and 3241 transitions. [2024-11-28 02:21:02,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:21:02,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2024-11-28 02:21:02,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:21:02,127 INFO L225 Difference]: With dead ends: 2302 [2024-11-28 02:21:02,128 INFO L226 Difference]: Without dead ends: 1501 [2024-11-28 02:21:02,144 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:02,148 INFO L435 NwaCegarLoop]: 1064 mSDtfsCounter, 1010 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:21:02,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 2101 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-28 02:21:02,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2024-11-28 02:21:02,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1501. [2024-11-28 02:21:02,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1501 states, 1109 states have (on average 1.3047790802524797) internal successors, (1447), 1141 states have internal predecessors, (1447), 293 states have call successors, (293), 99 states have call predecessors, (293), 98 states have return successors, (288), 278 states have call predecessors, (288), 288 states have call successors, (288) [2024-11-28 02:21:02,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 2028 transitions. [2024-11-28 02:21:02,405 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 2028 transitions. Word has length 28 [2024-11-28 02:21:02,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:21:02,406 INFO L471 AbstractCegarLoop]: Abstraction has 1501 states and 2028 transitions. [2024-11-28 02:21:02,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:21:02,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 2028 transitions. [2024-11-28 02:21:02,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 02:21:02,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:02,413 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:02,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:21:02,414 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:02,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:02,415 INFO L85 PathProgramCache]: Analyzing trace with hash -74758215, now seen corresponding path program 1 times [2024-11-28 02:21:02,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:21:02,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630112642] [2024-11-28 02:21:02,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:02,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:21:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:06,079 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:21:06,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:21:06,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630112642] [2024-11-28 02:21:06,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630112642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:21:06,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:21:06,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:21:06,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815775688] [2024-11-28 02:21:06,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:21:06,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:21:06,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:21:06,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:21:06,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:06,090 INFO L87 Difference]: Start difference. First operand 1501 states and 2028 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:21:06,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:21:06,505 INFO L93 Difference]: Finished difference Result 4488 states and 6169 transitions. [2024-11-28 02:21:06,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:21:06,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2024-11-28 02:21:06,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:21:06,534 INFO L225 Difference]: With dead ends: 4488 [2024-11-28 02:21:06,535 INFO L226 Difference]: Without dead ends: 2994 [2024-11-28 02:21:06,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:06,544 INFO L435 NwaCegarLoop]: 1571 mSDtfsCounter, 1024 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:21:06,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 2584 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:21:06,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2024-11-28 02:21:06,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 2984. [2024-11-28 02:21:06,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2984 states, 2208 states have (on average 1.3034420289855073) internal successors, (2878), 2268 states have internal predecessors, (2878), 579 states have call successors, (579), 197 states have call predecessors, (579), 196 states have return successors, (618), 554 states have call predecessors, (618), 574 states have call successors, (618) [2024-11-28 02:21:06,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2984 states to 2984 states and 4075 transitions. [2024-11-28 02:21:06,835 INFO L78 Accepts]: Start accepts. Automaton has 2984 states and 4075 transitions. Word has length 38 [2024-11-28 02:21:06,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:21:06,835 INFO L471 AbstractCegarLoop]: Abstraction has 2984 states and 4075 transitions. [2024-11-28 02:21:06,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:21:06,836 INFO L276 IsEmpty]: Start isEmpty. Operand 2984 states and 4075 transitions. [2024-11-28 02:21:06,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-28 02:21:06,840 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:06,840 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:06,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:21:06,840 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:06,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:06,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1977134535, now seen corresponding path program 1 times [2024-11-28 02:21:06,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:21:06,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136023249] [2024-11-28 02:21:06,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:06,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:21:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:09,430 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:21:09,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:21:09,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136023249] [2024-11-28 02:21:09,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136023249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:21:09,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:21:09,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:21:09,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010906172] [2024-11-28 02:21:09,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:21:09,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:21:09,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:21:09,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:21:09,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:09,434 INFO L87 Difference]: Start difference. First operand 2984 states and 4075 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:21:09,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:21:09,648 INFO L93 Difference]: Finished difference Result 2986 states and 4076 transitions. [2024-11-28 02:21:09,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:21:09,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2024-11-28 02:21:09,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:21:09,679 INFO L225 Difference]: With dead ends: 2986 [2024-11-28 02:21:09,680 INFO L226 Difference]: Without dead ends: 2983 [2024-11-28 02:21:09,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:09,683 INFO L435 NwaCegarLoop]: 1033 mSDtfsCounter, 1010 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:21:09,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 1033 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:21:09,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2024-11-28 02:21:09,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 2983. [2024-11-28 02:21:10,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2983 states, 2208 states have (on average 1.3029891304347827) internal successors, (2877), 2267 states have internal predecessors, (2877), 578 states have call successors, (578), 197 states have call predecessors, (578), 196 states have return successors, (618), 554 states have call predecessors, (618), 574 states have call successors, (618) [2024-11-28 02:21:10,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2983 states to 2983 states and 4073 transitions. [2024-11-28 02:21:10,042 INFO L78 Accepts]: Start accepts. Automaton has 2983 states and 4073 transitions. Word has length 39 [2024-11-28 02:21:10,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:21:10,043 INFO L471 AbstractCegarLoop]: Abstraction has 2983 states and 4073 transitions. [2024-11-28 02:21:10,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:21:10,043 INFO L276 IsEmpty]: Start isEmpty. Operand 2983 states and 4073 transitions. [2024-11-28 02:21:10,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 02:21:10,048 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:10,049 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:10,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:21:10,049 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:10,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:10,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1161305212, now seen corresponding path program 1 times [2024-11-28 02:21:10,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:21:10,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471977334] [2024-11-28 02:21:10,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:10,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:21:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:12,142 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:21:12,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:21:12,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471977334] [2024-11-28 02:21:12,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471977334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:21:12,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:21:12,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:21:12,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808657266] [2024-11-28 02:21:12,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:21:12,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:21:12,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:21:12,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:21:12,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:12,145 INFO L87 Difference]: Start difference. First operand 2983 states and 4073 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:21:12,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:21:12,313 INFO L93 Difference]: Finished difference Result 2985 states and 4074 transitions. [2024-11-28 02:21:12,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:21:12,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2024-11-28 02:21:12,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:21:12,339 INFO L225 Difference]: With dead ends: 2985 [2024-11-28 02:21:12,339 INFO L226 Difference]: Without dead ends: 2982 [2024-11-28 02:21:12,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:12,344 INFO L435 NwaCegarLoop]: 1031 mSDtfsCounter, 1007 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:21:12,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1007 Valid, 1031 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:21:12,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2024-11-28 02:21:12,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 2982. [2024-11-28 02:21:12,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2982 states, 2208 states have (on average 1.3025362318840579) internal successors, (2876), 2266 states have internal predecessors, (2876), 577 states have call successors, (577), 197 states have call predecessors, (577), 196 states have return successors, (618), 554 states have call predecessors, (618), 574 states have call successors, (618) [2024-11-28 02:21:12,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2982 states to 2982 states and 4071 transitions. [2024-11-28 02:21:12,654 INFO L78 Accepts]: Start accepts. Automaton has 2982 states and 4071 transitions. Word has length 40 [2024-11-28 02:21:12,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:21:12,656 INFO L471 AbstractCegarLoop]: Abstraction has 2982 states and 4071 transitions. [2024-11-28 02:21:12,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:21:12,657 INFO L276 IsEmpty]: Start isEmpty. Operand 2982 states and 4071 transitions. [2024-11-28 02:21:12,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 02:21:12,658 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:12,659 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:12,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:21:12,659 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:12,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:12,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1640404842, now seen corresponding path program 1 times [2024-11-28 02:21:12,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:21:12,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241111117] [2024-11-28 02:21:12,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:12,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:21:14,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:14,515 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:21:14,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:21:14,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241111117] [2024-11-28 02:21:14,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241111117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:21:14,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:21:14,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:21:14,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865049147] [2024-11-28 02:21:14,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:21:14,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:21:14,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:21:14,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:21:14,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:14,523 INFO L87 Difference]: Start difference. First operand 2982 states and 4071 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:21:14,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:21:14,700 INFO L93 Difference]: Finished difference Result 2984 states and 4072 transitions. [2024-11-28 02:21:14,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:21:14,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2024-11-28 02:21:14,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:21:14,729 INFO L225 Difference]: With dead ends: 2984 [2024-11-28 02:21:14,729 INFO L226 Difference]: Without dead ends: 2981 [2024-11-28 02:21:14,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:14,734 INFO L435 NwaCegarLoop]: 1029 mSDtfsCounter, 1004 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:21:14,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 1029 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:21:14,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2024-11-28 02:21:14,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 2981. [2024-11-28 02:21:14,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2981 states, 2208 states have (on average 1.3020833333333333) internal successors, (2875), 2265 states have internal predecessors, (2875), 576 states have call successors, (576), 197 states have call predecessors, (576), 196 states have return successors, (618), 554 states have call predecessors, (618), 574 states have call successors, (618) [2024-11-28 02:21:15,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2981 states to 2981 states and 4069 transitions. [2024-11-28 02:21:15,012 INFO L78 Accepts]: Start accepts. Automaton has 2981 states and 4069 transitions. Word has length 41 [2024-11-28 02:21:15,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:21:15,013 INFO L471 AbstractCegarLoop]: Abstraction has 2981 states and 4069 transitions. [2024-11-28 02:21:15,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:21:15,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2981 states and 4069 transitions. [2024-11-28 02:21:15,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 02:21:15,015 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:15,015 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:15,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:21:15,016 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:15,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:15,018 INFO L85 PathProgramCache]: Analyzing trace with hash -687370945, now seen corresponding path program 1 times [2024-11-28 02:21:15,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:21:15,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908904943] [2024-11-28 02:21:15,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:15,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:21:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:17,267 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:21:17,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:21:17,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908904943] [2024-11-28 02:21:17,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908904943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:21:17,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:21:17,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:21:17,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160099428] [2024-11-28 02:21:17,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:21:17,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:21:17,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:21:17,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:21:17,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:17,270 INFO L87 Difference]: Start difference. First operand 2981 states and 4069 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:21:17,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:21:17,458 INFO L93 Difference]: Finished difference Result 2983 states and 4070 transitions. [2024-11-28 02:21:17,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:21:17,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2024-11-28 02:21:17,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:21:17,483 INFO L225 Difference]: With dead ends: 2983 [2024-11-28 02:21:17,483 INFO L226 Difference]: Without dead ends: 2971 [2024-11-28 02:21:17,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:17,488 INFO L435 NwaCegarLoop]: 1028 mSDtfsCounter, 1001 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:21:17,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:21:17,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states. [2024-11-28 02:21:17,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 2971. [2024-11-28 02:21:17,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2971 states, 2199 states have (on average 1.3015006821282402) internal successors, (2862), 2255 states have internal predecessors, (2862), 575 states have call successors, (575), 197 states have call predecessors, (575), 196 states have return successors, (618), 554 states have call predecessors, (618), 574 states have call successors, (618) [2024-11-28 02:21:17,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2971 states to 2971 states and 4055 transitions. [2024-11-28 02:21:17,753 INFO L78 Accepts]: Start accepts. Automaton has 2971 states and 4055 transitions. Word has length 42 [2024-11-28 02:21:17,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:21:17,755 INFO L471 AbstractCegarLoop]: Abstraction has 2971 states and 4055 transitions. [2024-11-28 02:21:17,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:21:17,755 INFO L276 IsEmpty]: Start isEmpty. Operand 2971 states and 4055 transitions. [2024-11-28 02:21:17,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 02:21:17,768 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:17,768 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:17,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:21:17,768 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:17,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:17,769 INFO L85 PathProgramCache]: Analyzing trace with hash 219489901, now seen corresponding path program 1 times [2024-11-28 02:21:17,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:21:17,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351325989] [2024-11-28 02:21:17,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:17,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:21:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:20,254 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:21:20,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:21:20,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351325989] [2024-11-28 02:21:20,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351325989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:21:20,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:21:20,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:21:20,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835476102] [2024-11-28 02:21:20,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:21:20,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:21:20,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:21:20,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:21:20,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:20,257 INFO L87 Difference]: Start difference. First operand 2971 states and 4055 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 02:21:20,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:21:20,742 INFO L93 Difference]: Finished difference Result 6764 states and 9132 transitions. [2024-11-28 02:21:20,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:21:20,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 90 [2024-11-28 02:21:20,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:21:20,772 INFO L225 Difference]: With dead ends: 6764 [2024-11-28 02:21:20,773 INFO L226 Difference]: Without dead ends: 3800 [2024-11-28 02:21:20,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:20,786 INFO L435 NwaCegarLoop]: 1074 mSDtfsCounter, 272 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 2071 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:21:20,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 2071 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:21:20,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3800 states. [2024-11-28 02:21:21,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3800 to 3792. [2024-11-28 02:21:21,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3792 states, 2804 states have (on average 1.2838801711840229) internal successors, (3600), 2868 states have internal predecessors, (3600), 712 states have call successors, (712), 276 states have call predecessors, (712), 275 states have return successors, (763), 691 states have call predecessors, (763), 711 states have call successors, (763) [2024-11-28 02:21:21,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3792 states to 3792 states and 5075 transitions. [2024-11-28 02:21:21,130 INFO L78 Accepts]: Start accepts. Automaton has 3792 states and 5075 transitions. Word has length 90 [2024-11-28 02:21:21,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:21:21,130 INFO L471 AbstractCegarLoop]: Abstraction has 3792 states and 5075 transitions. [2024-11-28 02:21:21,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 02:21:21,131 INFO L276 IsEmpty]: Start isEmpty. Operand 3792 states and 5075 transitions. [2024-11-28 02:21:21,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-28 02:21:21,140 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:21,141 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:21,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:21:21,141 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:21,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:21,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1370410976, now seen corresponding path program 1 times [2024-11-28 02:21:21,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:21:21,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291243415] [2024-11-28 02:21:21,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:21,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:21:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:23,266 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:21:23,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:21:23,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291243415] [2024-11-28 02:21:23,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291243415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:21:23,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:21:23,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:21:23,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674419946] [2024-11-28 02:21:23,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:21:23,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:21:23,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:21:23,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:21:23,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:23,268 INFO L87 Difference]: Start difference. First operand 3792 states and 5075 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 02:21:27,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:21:27,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:21:27,931 INFO L93 Difference]: Finished difference Result 8440 states and 11244 transitions. [2024-11-28 02:21:27,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:21:27,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 106 [2024-11-28 02:21:27,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:21:27,970 INFO L225 Difference]: With dead ends: 8440 [2024-11-28 02:21:27,971 INFO L226 Difference]: Without dead ends: 4662 [2024-11-28 02:21:27,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:27,988 INFO L435 NwaCegarLoop]: 1285 mSDtfsCounter, 280 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:21:27,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 2283 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 02:21:27,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4662 states. [2024-11-28 02:21:28,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4662 to 4654. [2024-11-28 02:21:28,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4654 states, 3452 states have (on average 1.2746234067207416) internal successors, (4400), 3524 states have internal predecessors, (4400), 848 states have call successors, (848), 354 states have call predecessors, (848), 353 states have return successors, (907), 827 states have call predecessors, (907), 847 states have call successors, (907) [2024-11-28 02:21:28,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4654 states to 4654 states and 6155 transitions. [2024-11-28 02:21:28,400 INFO L78 Accepts]: Start accepts. Automaton has 4654 states and 6155 transitions. Word has length 106 [2024-11-28 02:21:28,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:21:28,400 INFO L471 AbstractCegarLoop]: Abstraction has 4654 states and 6155 transitions. [2024-11-28 02:21:28,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 02:21:28,402 INFO L276 IsEmpty]: Start isEmpty. Operand 4654 states and 6155 transitions. [2024-11-28 02:21:28,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 02:21:28,412 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:28,414 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:28,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:21:28,414 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:28,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:28,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1193550718, now seen corresponding path program 1 times [2024-11-28 02:21:28,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:21:28,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842725478] [2024-11-28 02:21:28,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:28,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:21:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:31,143 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-28 02:21:31,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:21:31,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842725478] [2024-11-28 02:21:31,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842725478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:21:31,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:21:31,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:21:31,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446184601] [2024-11-28 02:21:31,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:21:31,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:21:31,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:21:31,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:21:31,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:31,146 INFO L87 Difference]: Start difference. First operand 4654 states and 6155 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, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 02:21:35,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:21:35,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:21:35,812 INFO L93 Difference]: Finished difference Result 11336 states and 14962 transitions. [2024-11-28 02:21:35,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:21:35,813 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, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 118 [2024-11-28 02:21:35,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:21:35,888 INFO L225 Difference]: With dead ends: 11336 [2024-11-28 02:21:35,888 INFO L226 Difference]: Without dead ends: 6696 [2024-11-28 02:21:35,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:35,912 INFO L435 NwaCegarLoop]: 1266 mSDtfsCounter, 812 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:21:35,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 2121 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-28 02:21:35,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6696 states. [2024-11-28 02:21:36,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6696 to 6688. [2024-11-28 02:21:36,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6688 states, 5000 states have (on average 1.2808) internal successors, (6404), 5120 states have internal predecessors, (6404), 1152 states have call successors, (1152), 536 states have call predecessors, (1152), 535 states have return successors, (1237), 1115 states have call predecessors, (1237), 1151 states have call successors, (1237) [2024-11-28 02:21:36,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6688 states to 6688 states and 8793 transitions. [2024-11-28 02:21:36,437 INFO L78 Accepts]: Start accepts. Automaton has 6688 states and 8793 transitions. Word has length 118 [2024-11-28 02:21:36,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:21:36,438 INFO L471 AbstractCegarLoop]: Abstraction has 6688 states and 8793 transitions. [2024-11-28 02:21:36,438 INFO L472 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, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 02:21:36,439 INFO L276 IsEmpty]: Start isEmpty. Operand 6688 states and 8793 transitions. [2024-11-28 02:21:36,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 02:21:36,445 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:36,445 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:36,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:21:36,446 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:36,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:36,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1686531040, now seen corresponding path program 1 times [2024-11-28 02:21:36,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:21:36,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322257630] [2024-11-28 02:21:36,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:36,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:21:38,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:38,502 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 02:21:38,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:21:38,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322257630] [2024-11-28 02:21:38,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322257630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:21:38,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:21:38,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:21:38,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955065029] [2024-11-28 02:21:38,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:21:38,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:21:38,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:21:38,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:21:38,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:38,504 INFO L87 Difference]: Start difference. First operand 6688 states and 8793 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-28 02:21:39,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:21:39,271 INFO L93 Difference]: Finished difference Result 17752 states and 23435 transitions. [2024-11-28 02:21:39,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:21:39,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 123 [2024-11-28 02:21:39,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:21:39,366 INFO L225 Difference]: With dead ends: 17752 [2024-11-28 02:21:39,366 INFO L226 Difference]: Without dead ends: 11078 [2024-11-28 02:21:39,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:39,394 INFO L435 NwaCegarLoop]: 1267 mSDtfsCounter, 883 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:21:39,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 2270 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:21:39,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11078 states. [2024-11-28 02:21:40,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11078 to 11056. [2024-11-28 02:21:40,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11056 states, 8323 states have (on average 1.2955665024630543) internal successors, (10783), 8531 states have internal predecessors, (10783), 1848 states have call successors, (1848), 885 states have call predecessors, (1848), 884 states have return successors, (1991), 1775 states have call predecessors, (1991), 1847 states have call successors, (1991) [2024-11-28 02:21:40,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11056 states to 11056 states and 14622 transitions. [2024-11-28 02:21:40,266 INFO L78 Accepts]: Start accepts. Automaton has 11056 states and 14622 transitions. Word has length 123 [2024-11-28 02:21:40,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:21:40,267 INFO L471 AbstractCegarLoop]: Abstraction has 11056 states and 14622 transitions. [2024-11-28 02:21:40,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-28 02:21:40,267 INFO L276 IsEmpty]: Start isEmpty. Operand 11056 states and 14622 transitions. [2024-11-28 02:21:40,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:21:40,281 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:40,281 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:40,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:21:40,283 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:40,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:40,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1982233267, now seen corresponding path program 1 times [2024-11-28 02:21:40,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:21:40,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130260420] [2024-11-28 02:21:40,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:40,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:21:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:42,270 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-28 02:21:42,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:21:42,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130260420] [2024-11-28 02:21:42,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130260420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:21:42,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:21:42,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:21:42,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513132224] [2024-11-28 02:21:42,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:21:42,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:21:42,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:21:42,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:21:42,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:42,273 INFO L87 Difference]: Start difference. First operand 11056 states and 14622 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), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-28 02:21:43,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:21:43,064 INFO L93 Difference]: Finished difference Result 22126 states and 29272 transitions. [2024-11-28 02:21:43,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:21:43,065 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), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2024-11-28 02:21:43,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:21:43,145 INFO L225 Difference]: With dead ends: 22126 [2024-11-28 02:21:43,145 INFO L226 Difference]: Without dead ends: 11088 [2024-11-28 02:21:43,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:43,188 INFO L435 NwaCegarLoop]: 1022 mSDtfsCounter, 1 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:21:43,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2040 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:21:43,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11088 states. [2024-11-28 02:21:43,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11088 to 11072. [2024-11-28 02:21:43,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11072 states, 8339 states have (on average 1.2949994004077228) internal successors, (10799), 8547 states have internal predecessors, (10799), 1848 states have call successors, (1848), 885 states have call predecessors, (1848), 884 states have return successors, (1991), 1775 states have call predecessors, (1991), 1847 states have call successors, (1991) [2024-11-28 02:21:43,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11072 states to 11072 states and 14638 transitions. [2024-11-28 02:21:43,998 INFO L78 Accepts]: Start accepts. Automaton has 11072 states and 14638 transitions. Word has length 139 [2024-11-28 02:21:43,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:21:43,998 INFO L471 AbstractCegarLoop]: Abstraction has 11072 states and 14638 transitions. [2024-11-28 02:21:43,999 INFO L472 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), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-28 02:21:43,999 INFO L276 IsEmpty]: Start isEmpty. Operand 11072 states and 14638 transitions. [2024-11-28 02:21:44,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 02:21:44,013 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:44,013 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:44,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:21:44,013 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:44,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:44,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1538999567, now seen corresponding path program 1 times [2024-11-28 02:21:44,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:21:44,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086015451] [2024-11-28 02:21:44,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:44,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:21:46,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:46,483 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-28 02:21:46,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:21:46,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086015451] [2024-11-28 02:21:46,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086015451] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:21:46,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784148773] [2024-11-28 02:21:46,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:46,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:21:46,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:21:46,489 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:21:46,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:21:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:49,373 INFO L256 TraceCheckSpWp]: Trace formula consists of 2294 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:21:49,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:21:49,506 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-28 02:21:49,508 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:21:49,962 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-28 02:21:49,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784148773] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:21:49,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:21:49,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 02:21:49,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486817343] [2024-11-28 02:21:49,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:21:49,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:21:49,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:21:49,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:21:49,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:21:49,966 INFO L87 Difference]: Start difference. First operand 11072 states and 14638 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-28 02:21:50,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:21:50,843 INFO L93 Difference]: Finished difference Result 22222 states and 29400 transitions. [2024-11-28 02:21:50,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:21:50,844 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 141 [2024-11-28 02:21:50,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:21:50,907 INFO L225 Difference]: With dead ends: 22222 [2024-11-28 02:21:50,907 INFO L226 Difference]: Without dead ends: 11168 [2024-11-28 02:21:50,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:21:50,938 INFO L435 NwaCegarLoop]: 1022 mSDtfsCounter, 2 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:21:50,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3058 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:21:50,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11168 states. [2024-11-28 02:21:51,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11168 to 11168. [2024-11-28 02:21:51,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11168 states, 8435 states have (on average 1.2916419679905158) internal successors, (10895), 8643 states have internal predecessors, (10895), 1848 states have call successors, (1848), 885 states have call predecessors, (1848), 884 states have return successors, (1991), 1775 states have call predecessors, (1991), 1847 states have call successors, (1991) [2024-11-28 02:21:51,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11168 states to 11168 states and 14734 transitions. [2024-11-28 02:21:51,679 INFO L78 Accepts]: Start accepts. Automaton has 11168 states and 14734 transitions. Word has length 141 [2024-11-28 02:21:51,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:21:51,679 INFO L471 AbstractCegarLoop]: Abstraction has 11168 states and 14734 transitions. [2024-11-28 02:21:51,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-28 02:21:51,680 INFO L276 IsEmpty]: Start isEmpty. Operand 11168 states and 14734 transitions. [2024-11-28 02:21:51,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 02:21:51,694 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:51,694 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:51,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:21:51,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:21:51,899 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:51,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:51,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1653193251, now seen corresponding path program 2 times [2024-11-28 02:21:51,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:21:51,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034067903] [2024-11-28 02:21:51,900 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:21:51,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:21:53,546 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:21:53,546 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:21:54,169 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-28 02:21:54,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:21:54,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034067903] [2024-11-28 02:21:54,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034067903] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:21:54,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826005783] [2024-11-28 02:21:54,169 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:21:54,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:21:54,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:21:54,172 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:21:54,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0db8ca7c-cf2b-4cb1-8a25-333136af9ec2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process