./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 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '64bit', '--witnessprinter.graph.data.programhash', 'be936ec9376452d086f72aa92ac4fe7deb233a068e40e0ed8f478fbc228d19b6'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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-?-4f9af40 [2024-11-07 12:58:29,362 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 12:58:29,422 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 12:58:29,426 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 12:58:29,426 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 12:58:29,440 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 12:58:29,440 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 12:58:29,440 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 12:58:29,441 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 12:58:29,441 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 12:58:29,441 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 12:58:29,441 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 12:58:29,441 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 12:58:29,441 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 12:58:29,441 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 12:58:29,441 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 12:58:29,441 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 12:58:29,442 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 12:58:29,442 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 12:58:29,442 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 12:58:29,442 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 12:58:29,442 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 12:58:29,442 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 12:58:29,442 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 12:58:29,442 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 12:58:29,442 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 12:58:29,443 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 12:58:29,443 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 12:58:29,443 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 12:58:29,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 12:58:29,443 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 12:58:29,443 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 12:58:29,443 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 12:58:29,443 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 12:58:29,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 12:58:29,443 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 12:58:29,444 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 12:58:29,444 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 12:58:29,444 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 12:58:29,444 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 [2024-11-07 12:58:29,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 12:58:29,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 12:58:29,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 12:58:29,691 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 12:58:29,691 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 12:58:29,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2024-11-07 12:58:30,884 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 12:58:31,387 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 12:58:31,387 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2024-11-07 12:58:31,420 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3fc3acdd4/86081a38b5de42ef9ab8a3a1d047f221/FLAGef2138777 [2024-11-07 12:58:31,458 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3fc3acdd4/86081a38b5de42ef9ab8a3a1d047f221 [2024-11-07 12:58:31,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 12:58:31,463 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 12:58:31,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 12:58:31,466 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 12:58:31,469 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 12:58:31,470 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:31" (1/1) ... [2024-11-07 12:58:31,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a8ccc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:31, skipping insertion in model container [2024-11-07 12:58:31,471 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:31" (1/1) ... [2024-11-07 12:58:31,538 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 12:58:32,290 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/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] [2024-11-07 12:58:32,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 12:58:32,757 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 12:58:32,873 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] [2024-11-07 12:58:32,875 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] [2024-11-07 12:58:32,876 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] [2024-11-07 12:58:32,878 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] [2024-11-07 12:58:32,878 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] [2024-11-07 12:58:32,888 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/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] [2024-11-07 12:58:32,923 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] [2024-11-07 12:58:33,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 12:58:33,052 INFO L204 MainTranslator]: Completed translation [2024-11-07 12:58:33,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:33 WrapperNode [2024-11-07 12:58:33,054 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 12:58:33,055 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 12:58:33,055 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 12:58:33,055 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 12:58:33,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:33" (1/1) ... [2024-11-07 12:58:33,099 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:33" (1/1) ... [2024-11-07 12:58:33,218 INFO L138 Inliner]: procedures = 168, calls = 765, calls flagged for inlining = 78, calls inlined = 78, statements flattened = 2300 [2024-11-07 12:58:33,218 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 12:58:33,219 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 12:58:33,220 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 12:58:33,221 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 12:58:33,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:33" (1/1) ... [2024-11-07 12:58:33,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:33" (1/1) ... [2024-11-07 12:58:33,249 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:33" (1/1) ... [2024-11-07 12:58:33,518 INFO L175 MemorySlicer]: Split 454 memory accesses to 8 slices as follows [20, 2, 44, 342, 9, 20, 9, 8]. 75 percent of accesses are in the largest equivalence class. The 44 initializations are split as follows [0, 2, 0, 34, 0, 0, 0, 8]. The 224 writes are split as follows [11, 0, 44, 164, 5, 0, 0, 0]. [2024-11-07 12:58:33,519 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:33" (1/1) ... [2024-11-07 12:58:33,519 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:33" (1/1) ... [2024-11-07 12:58:33,593 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:33" (1/1) ... [2024-11-07 12:58:33,609 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:33" (1/1) ... [2024-11-07 12:58:33,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:33" (1/1) ... [2024-11-07 12:58:33,641 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:33" (1/1) ... [2024-11-07 12:58:33,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 12:58:33,668 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 12:58:33,668 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 12:58:33,669 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 12:58:33,670 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:33" (1/1) ... [2024-11-07 12:58:33,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 12:58:33,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 12:58:33,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 12:58:33,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 12:58:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-11-07 12:58:33,722 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-11-07 12:58:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-07 12:58:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-07 12:58:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-07 12:58:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-07 12:58:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-07 12:58:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-07 12:58:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-07 12:58:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-07 12:58:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_18 [2024-11-07 12:58:33,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_18 [2024-11-07 12:58:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2024-11-07 12:58:33,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2024-11-07 12:58:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2024-11-07 12:58:33,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2024-11-07 12:58:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2024-11-07 12:58:33,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2024-11-07 12:58:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-07 12:58:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-07 12:58:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-07 12:58:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-07 12:58:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-07 12:58:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-07 12:58:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-07 12:58:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-07 12:58:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-07 12:58:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-07 12:58:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-07 12:58:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-07 12:58:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-07 12:58:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-07 12:58:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-07 12:58:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-07 12:58:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-07 12:58:33,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-07 12:58:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 12:58:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 12:58:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 12:58:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 12:58:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 12:58:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-07 12:58:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-07 12:58:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-07 12:58:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-07 12:58:33,725 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-07 12:58:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_bulk_callback [2024-11-07 12:58:33,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_bulk_callback [2024-11-07 12:58:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2024-11-07 12:58:33,725 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2024-11-07 12:58:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-11-07 12:58:33,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-11-07 12:58:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2024-11-07 12:58:33,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2024-11-07 12:58:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-07 12:58:33,726 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-07 12:58:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-07 12:58:33,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-07 12:58:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-07 12:58:33,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-07 12:58:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-11-07 12:58:33,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-11-07 12:58:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-07 12:58:33,726 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-07 12:58:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2024-11-07 12:58:33,726 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2024-11-07 12:58:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-07 12:58:33,728 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-07 12:58:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2024-11-07 12:58:33,728 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2024-11-07 12:58:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 12:58:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 12:58:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 12:58:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 12:58:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 12:58:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-07 12:58:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-07 12:58:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-07 12:58:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-07 12:58:33,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-07 12:58:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-07 12:58:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 12:58:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-07 12:58:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2024-11-07 12:58:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-11-07 12:58:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-07 12:58:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2024-11-07 12:58:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-07 12:58:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-07 12:58:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2024-11-07 12:58:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-07 12:58:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-07 12:58:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2024-11-07 12:58:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2024-11-07 12:58:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 12:58:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 12:58:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 12:58:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-07 12:58:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-07 12:58:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-07 12:58:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-07 12:58:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-07 12:58:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_disconnect [2024-11-07 12:58:33,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_disconnect [2024-11-07 12:58:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-11-07 12:58:33,730 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-11-07 12:58:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-11-07 12:58:33,730 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-11-07 12:58:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_interrupt_callback [2024-11-07 12:58:33,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_interrupt_callback [2024-11-07 12:58:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-11-07 12:58:33,730 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-11-07 12:58:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 12:58:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2024-11-07 12:58:33,730 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2024-11-07 12:58:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_rx_err [2024-11-07 12:58:33,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_rx_err [2024-11-07 12:58:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-07 12:58:33,730 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-07 12:58:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-07 12:58:33,733 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-07 12:58:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-07 12:58:33,733 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-07 12:58:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-11-07 12:58:33,733 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-11-07 12:58:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-07 12:58:33,733 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-07 12:58:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-11-07 12:58:33,733 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-11-07 12:58:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-07 12:58:33,733 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-07 12:58:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-07 12:58:33,733 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-07 12:58:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-07 12:58:33,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-07 12:58:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-11-07 12:58:33,734 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-11-07 12:58:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 12:58:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 12:58:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 12:58:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 12:58:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 12:58:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-07 12:58:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-07 12:58:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-07 12:58:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-11-07 12:58:33,734 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-11-07 12:58:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-07 12:58:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-07 12:58:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-07 12:58:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-07 12:58:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-07 12:58:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-07 12:58:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-07 12:58:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-07 12:58:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-07 12:58:33,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-07 12:58:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 12:58:33,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 12:58:34,155 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 12:58:34,157 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 12:58:34,225 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-07 12:58:34,609 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-07 12:58:40,434 INFO L? ?]: Removed 985 outVars from TransFormulas that were not future-live. [2024-11-07 12:58:40,434 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 12:58:40,455 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 12:58:40,455 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 12:58:40,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:58:40 BoogieIcfgContainer [2024-11-07 12:58:40,456 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 12:58:40,458 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 12:58:40,458 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 12:58:40,462 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 12:58:40,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:58:31" (1/3) ... [2024-11-07 12:58:40,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c77401f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:58:40, skipping insertion in model container [2024-11-07 12:58:40,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:33" (2/3) ... [2024-11-07 12:58:40,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c77401f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:58:40, skipping insertion in model container [2024-11-07 12:58:40,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:58:40" (3/3) ... [2024-11-07 12:58:40,464 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2024-11-07 12:58:40,476 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 12:58:40,477 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 12:58:40,537 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 12:58:40,546 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;@329772af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 12:58:40,546 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 12:58:40,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 784 states, 575 states have (on average 1.342608695652174) internal successors, (772), 601 states have internal predecessors, (772), 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) [2024-11-07 12:58:40,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-07 12:58:40,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:58:40,561 INFO L215 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] [2024-11-07 12:58:40,561 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:58:40,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:58:40,564 INFO L85 PathProgramCache]: Analyzing trace with hash -580361329, now seen corresponding path program 1 times [2024-11-07 12:58:40,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:58:40,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823659550] [2024-11-07 12:58:40,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:58:40,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:58:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:42,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:58:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:42,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 12:58:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:42,535 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 12:58:42,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:58:42,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823659550] [2024-11-07 12:58:42,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823659550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:58:42,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:58:42,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:58:42,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794003306] [2024-11-07 12:58:42,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:58:42,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:58:42,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:58:42,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:58:42,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:58:42,563 INFO L87 Difference]: Start difference. First operand has 784 states, 575 states have (on average 1.342608695652174) internal successors, (772), 601 states have internal predecessors, (772), 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 4 states, 4 states have (on average 5.0) 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) [2024-11-07 12:58:46,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:58:50,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:58:56,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:58:57,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:58:57,046 INFO L93 Difference]: Finished difference Result 2478 states and 3533 transitions. [2024-11-07 12:58:57,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 12:58:57,047 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) 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 [2024-11-07 12:58:57,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:58:57,067 INFO L225 Difference]: With dead ends: 2478 [2024-11-07 12:58:57,068 INFO L226 Difference]: Without dead ends: 1675 [2024-11-07 12:58:57,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:58:57,078 INFO L432 NwaCegarLoop]: 848 mSDtfsCounter, 1506 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 457 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1626 SdHoareTripleChecker+Valid, 2076 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2024-11-07 12:58:57,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1626 Valid, 2076 Invalid, 1236 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [457 Valid, 777 Invalid, 2 Unknown, 0 Unchecked, 14.1s Time] [2024-11-07 12:58:57,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2024-11-07 12:58:57,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1505. [2024-11-07 12:58:57,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1113 states have (on average 1.3036837376460018) internal successors, (1451), 1145 states have internal predecessors, (1451), 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) [2024-11-07 12:58:57,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2032 transitions. [2024-11-07 12:58:57,248 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2032 transitions. Word has length 28 [2024-11-07 12:58:57,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:58:57,248 INFO L471 AbstractCegarLoop]: Abstraction has 1505 states and 2032 transitions. [2024-11-07 12:58:57,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) 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) [2024-11-07 12:58:57,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2032 transitions. [2024-11-07 12:58:57,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-07 12:58:57,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:58:57,253 INFO L215 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] [2024-11-07 12:58:57,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 12:58:57,253 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:58:57,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:58:57,254 INFO L85 PathProgramCache]: Analyzing trace with hash -688431053, now seen corresponding path program 1 times [2024-11-07 12:58:57,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:58:57,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559126826] [2024-11-07 12:58:57,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:58:57,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:58:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:58,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:58:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:58,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 12:58:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:58,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 12:58:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:58,812 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-07 12:58:58,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:58:58,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559126826] [2024-11-07 12:58:58,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559126826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:58:58,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:58:58,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:58:58,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250238637] [2024-11-07 12:58:58,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:58:58,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:58:58,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:58:58,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:58:58,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:58:58,814 INFO L87 Difference]: Start difference. First operand 1505 states and 2032 transitions. Second operand has 4 states, 4 states have (on average 6.25) 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) [2024-11-07 12:59:02,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:59:10,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:59:10,198 INFO L93 Difference]: Finished difference Result 4840 states and 6747 transitions. [2024-11-07 12:59:10,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 12:59:10,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) 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 [2024-11-07 12:59:10,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:59:10,217 INFO L225 Difference]: With dead ends: 4840 [2024-11-07 12:59:10,217 INFO L226 Difference]: Without dead ends: 3342 [2024-11-07 12:59:10,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:59:10,225 INFO L432 NwaCegarLoop]: 1270 mSDtfsCounter, 1335 mSDsluCounter, 1425 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 352 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1439 SdHoareTripleChecker+Valid, 2695 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2024-11-07 12:59:10,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1439 Valid, 2695 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 969 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2024-11-07 12:59:10,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3342 states. [2024-11-07 12:59:10,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3342 to 3116. [2024-11-07 12:59:10,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 2306 states have (on average 1.3035559410234172) internal successors, (3006), 2378 states have internal predecessors, (3006), 599 states have call successors, (599), 197 states have call predecessors, (599), 210 states have return successors, (670), 582 states have call predecessors, (670), 594 states have call successors, (670) [2024-11-07 12:59:10,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 4275 transitions. [2024-11-07 12:59:10,378 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 4275 transitions. Word has length 38 [2024-11-07 12:59:10,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:59:10,378 INFO L471 AbstractCegarLoop]: Abstraction has 3116 states and 4275 transitions. [2024-11-07 12:59:10,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) 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) [2024-11-07 12:59:10,379 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 4275 transitions. [2024-11-07 12:59:10,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-07 12:59:10,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:59:10,381 INFO L215 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] [2024-11-07 12:59:10,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 12:59:10,381 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:59:10,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:59:10,384 INFO L85 PathProgramCache]: Analyzing trace with hash 133145803, now seen corresponding path program 1 times [2024-11-07 12:59:10,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:59:10,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699953659] [2024-11-07 12:59:10,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:59:10,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:59:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:12,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:59:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:12,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 12:59:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:12,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 12:59:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:12,027 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-07 12:59:12,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:59:12,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699953659] [2024-11-07 12:59:12,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699953659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:59:12,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:59:12,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:59:12,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803269368] [2024-11-07 12:59:12,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:59:12,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:59:12,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:59:12,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:59:12,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:59:12,029 INFO L87 Difference]: Start difference. First operand 3116 states and 4275 transitions. Second operand has 4 states, 4 states have (on average 6.5) 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) [2024-11-07 12:59:16,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:59:19,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:59:19,865 INFO L93 Difference]: Finished difference Result 3334 states and 4638 transitions. [2024-11-07 12:59:19,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 12:59:19,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) 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 [2024-11-07 12:59:19,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:59:19,891 INFO L225 Difference]: With dead ends: 3334 [2024-11-07 12:59:19,891 INFO L226 Difference]: Without dead ends: 3331 [2024-11-07 12:59:19,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:59:19,898 INFO L432 NwaCegarLoop]: 821 mSDtfsCounter, 1229 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 285 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-07 12:59:19,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 1275 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2024-11-07 12:59:19,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3331 states. [2024-11-07 12:59:20,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3331 to 3115. [2024-11-07 12:59:20,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 2306 states have (on average 1.303122289679098) internal successors, (3005), 2377 states have internal predecessors, (3005), 598 states have call successors, (598), 197 states have call predecessors, (598), 210 states have return successors, (670), 582 states have call predecessors, (670), 594 states have call successors, (670) [2024-11-07 12:59:20,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 4273 transitions. [2024-11-07 12:59:20,036 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 4273 transitions. Word has length 39 [2024-11-07 12:59:20,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:59:20,037 INFO L471 AbstractCegarLoop]: Abstraction has 3115 states and 4273 transitions. [2024-11-07 12:59:20,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) 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) [2024-11-07 12:59:20,037 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 4273 transitions. [2024-11-07 12:59:20,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-07 12:59:20,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:59:20,042 INFO L215 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] [2024-11-07 12:59:20,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 12:59:20,042 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:59:20,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:59:20,043 INFO L85 PathProgramCache]: Analyzing trace with hash -167770570, now seen corresponding path program 1 times [2024-11-07 12:59:20,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:59:20,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659980281] [2024-11-07 12:59:20,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:59:20,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:59:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:21,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:59:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:21,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 12:59:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:21,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 12:59:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:21,202 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-07 12:59:21,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:59:21,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659980281] [2024-11-07 12:59:21,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659980281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:59:21,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:59:21,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:59:21,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323606446] [2024-11-07 12:59:21,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:59:21,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:59:21,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:59:21,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:59:21,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:59:21,205 INFO L87 Difference]: Start difference. First operand 3115 states and 4273 transitions. Second operand has 4 states, 4 states have (on average 6.75) 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) [2024-11-07 12:59:25,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:59:28,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:59:28,938 INFO L93 Difference]: Finished difference Result 3333 states and 4636 transitions. [2024-11-07 12:59:28,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 12:59:28,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) 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 [2024-11-07 12:59:28,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:59:28,961 INFO L225 Difference]: With dead ends: 3333 [2024-11-07 12:59:28,961 INFO L226 Difference]: Without dead ends: 3330 [2024-11-07 12:59:28,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:59:28,967 INFO L432 NwaCegarLoop]: 831 mSDtfsCounter, 1219 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 277 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-07 12:59:28,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 1285 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2024-11-07 12:59:28,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2024-11-07 12:59:29,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 3114. [2024-11-07 12:59:29,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 2306 states have (on average 1.3026886383347789) internal successors, (3004), 2376 states have internal predecessors, (3004), 597 states have call successors, (597), 197 states have call predecessors, (597), 210 states have return successors, (670), 582 states have call predecessors, (670), 594 states have call successors, (670) [2024-11-07 12:59:29,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 4271 transitions. [2024-11-07 12:59:29,111 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 4271 transitions. Word has length 40 [2024-11-07 12:59:29,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:59:29,113 INFO L471 AbstractCegarLoop]: Abstraction has 3114 states and 4271 transitions. [2024-11-07 12:59:29,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) 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) [2024-11-07 12:59:29,113 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 4271 transitions. [2024-11-07 12:59:29,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-07 12:59:29,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:59:29,114 INFO L215 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] [2024-11-07 12:59:29,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 12:59:29,115 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:59:29,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:59:29,115 INFO L85 PathProgramCache]: Analyzing trace with hash -906238674, now seen corresponding path program 1 times [2024-11-07 12:59:29,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:59:29,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676483035] [2024-11-07 12:59:29,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:59:29,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:59:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:30,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:59:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:30,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 12:59:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:30,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 12:59:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:30,320 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-07 12:59:30,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:59:30,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676483035] [2024-11-07 12:59:30,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676483035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:59:30,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:59:30,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:59:30,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663093274] [2024-11-07 12:59:30,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:59:30,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:59:30,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:59:30,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:59:30,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:59:30,325 INFO L87 Difference]: Start difference. First operand 3114 states and 4271 transitions. Second operand has 4 states, 4 states have (on average 7.0) 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) [2024-11-07 12:59:34,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:59:38,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:59:38,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:59:38,976 INFO L93 Difference]: Finished difference Result 3332 states and 4634 transitions. [2024-11-07 12:59:38,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 12:59:38,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) 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 [2024-11-07 12:59:38,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:59:38,989 INFO L225 Difference]: With dead ends: 3332 [2024-11-07 12:59:38,990 INFO L226 Difference]: Without dead ends: 3329 [2024-11-07 12:59:38,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:59:38,992 INFO L432 NwaCegarLoop]: 812 mSDtfsCounter, 1228 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 286 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-07 12:59:38,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 1264 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2024-11-07 12:59:38,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2024-11-07 12:59:39,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3113. [2024-11-07 12:59:39,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3113 states, 2306 states have (on average 1.3022549869904596) internal successors, (3003), 2375 states have internal predecessors, (3003), 596 states have call successors, (596), 197 states have call predecessors, (596), 210 states have return successors, (670), 582 states have call predecessors, (670), 594 states have call successors, (670) [2024-11-07 12:59:39,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3113 states to 3113 states and 4269 transitions. [2024-11-07 12:59:39,109 INFO L78 Accepts]: Start accepts. Automaton has 3113 states and 4269 transitions. Word has length 41 [2024-11-07 12:59:39,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:59:39,110 INFO L471 AbstractCegarLoop]: Abstraction has 3113 states and 4269 transitions. [2024-11-07 12:59:39,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) 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) [2024-11-07 12:59:39,110 INFO L276 IsEmpty]: Start isEmpty. Operand 3113 states and 4269 transitions. [2024-11-07 12:59:39,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-07 12:59:39,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:59:39,112 INFO L215 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] [2024-11-07 12:59:39,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 12:59:39,112 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:59:39,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:59:39,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1971058745, now seen corresponding path program 1 times [2024-11-07 12:59:39,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:59:39,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132444702] [2024-11-07 12:59:39,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:59:39,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:59:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:40,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:59:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:40,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 12:59:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:40,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 12:59:40,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:40,231 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-07 12:59:40,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:59:40,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132444702] [2024-11-07 12:59:40,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132444702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:59:40,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:59:40,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:59:40,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239319553] [2024-11-07 12:59:40,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:59:40,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:59:40,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:59:40,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:59:40,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:59:40,233 INFO L87 Difference]: Start difference. First operand 3113 states and 4269 transitions. Second operand has 4 states, 4 states have (on average 7.25) 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) [2024-11-07 12:59:44,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:59:48,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:59:48,176 INFO L93 Difference]: Finished difference Result 3331 states and 4632 transitions. [2024-11-07 12:59:48,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 12:59:48,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) 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 [2024-11-07 12:59:48,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:59:48,204 INFO L225 Difference]: With dead ends: 3331 [2024-11-07 12:59:48,205 INFO L226 Difference]: Without dead ends: 3319 [2024-11-07 12:59:48,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:59:48,207 INFO L432 NwaCegarLoop]: 811 mSDtfsCounter, 1225 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 285 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-07 12:59:48,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 1263 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 443 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2024-11-07 12:59:48,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3319 states. [2024-11-07 12:59:48,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3319 to 3103. [2024-11-07 12:59:48,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3103 states, 2297 states have (on average 1.3016978667827601) internal successors, (2990), 2365 states have internal predecessors, (2990), 595 states have call successors, (595), 197 states have call predecessors, (595), 210 states have return successors, (670), 582 states have call predecessors, (670), 594 states have call successors, (670) [2024-11-07 12:59:48,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 4255 transitions. [2024-11-07 12:59:48,326 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 4255 transitions. Word has length 42 [2024-11-07 12:59:48,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:59:48,326 INFO L471 AbstractCegarLoop]: Abstraction has 3103 states and 4255 transitions. [2024-11-07 12:59:48,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) 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) [2024-11-07 12:59:48,327 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 4255 transitions. [2024-11-07 12:59:48,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 12:59:48,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:59:48,331 INFO L215 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] [2024-11-07 12:59:48,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 12:59:48,331 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:59:48,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:59:48,331 INFO L85 PathProgramCache]: Analyzing trace with hash 146725291, now seen corresponding path program 1 times [2024-11-07 12:59:48,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:59:48,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732853081] [2024-11-07 12:59:48,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:59:48,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:59:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:49,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:59:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:49,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 12:59:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:49,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 12:59:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:49,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-07 12:59:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:49,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 12:59:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:49,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-07 12:59:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:49,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 12:59:49,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:49,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-07 12:59:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:49,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 12:59:49,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:49,882 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-07 12:59:49,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:59:49,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732853081] [2024-11-07 12:59:49,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732853081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:59:49,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:59:49,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 12:59:49,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805033746] [2024-11-07 12:59:49,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:59:49,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 12:59:49,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:59:49,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 12:59:49,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 12:59:49,886 INFO L87 Difference]: Start difference. First operand 3103 states and 4255 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-07 12:59:53,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:59:57,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:00:02,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []