./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.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', '93c428ff6f0565c9de954639ae23000ff5693477bac9f291339fc811e0689668'] 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.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 93c428ff6f0565c9de954639ae23000ff5693477bac9f291339fc811e0689668 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 13:22:49,879 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 13:22:49,964 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 13:22:49,970 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 13:22:49,971 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 13:22:49,999 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 13:22:50,001 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 13:22:50,002 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 13:22:50,002 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 13:22:50,003 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 13:22:50,003 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 13:22:50,003 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 13:22:50,003 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 13:22:50,004 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 13:22:50,004 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 13:22:50,004 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 13:22:50,004 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 13:22:50,005 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 13:22:50,005 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 13:22:50,005 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 13:22:50,005 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 13:22:50,005 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 13:22:50,005 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 13:22:50,006 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 13:22:50,006 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 13:22:50,006 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 13:22:50,006 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 13:22:50,006 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 13:22:50,007 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 13:22:50,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 13:22:50,007 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 13:22:50,007 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 13:22:50,007 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 13:22:50,007 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 13:22:50,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 13:22:50,008 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 13:22:50,008 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 13:22:50,008 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 13:22:50,008 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 13:22:50,008 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 -> 93c428ff6f0565c9de954639ae23000ff5693477bac9f291339fc811e0689668 [2024-11-07 13:22:50,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 13:22:50,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 13:22:50,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 13:22:50,310 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 13:22:50,310 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 13:22:50,311 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2024-11-07 13:22:51,563 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 13:22:52,082 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 13:22:52,082 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2024-11-07 13:22:52,122 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/03db81b3a/e8f0578e2d524d408b2ffc2b56afe60b/FLAGee68d520f [2024-11-07 13:22:52,139 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/03db81b3a/e8f0578e2d524d408b2ffc2b56afe60b [2024-11-07 13:22:52,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 13:22:52,144 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 13:22:52,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 13:22:52,146 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 13:22:52,150 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 13:22:52,151 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:22:52" (1/1) ... [2024-11-07 13:22:52,151 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@606641db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:52, skipping insertion in model container [2024-11-07 13:22:52,151 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:22:52" (1/1) ... [2024-11-07 13:22:52,226 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 13:22:53,377 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i[129978,129991] [2024-11-07 13:22:53,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 13:22:53,525 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 13:22:53,615 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; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [3226-3227] [2024-11-07 13:22:53,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [3238-3239] [2024-11-07 13:22:53,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3242-3243] [2024-11-07 13:22:53,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3246-3247] [2024-11-07 13:22:53,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3250-3251] [2024-11-07 13:22:53,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp): "ebx"); [3767] [2024-11-07 13:22:53,671 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___0): "ebx"); [3772] [2024-11-07 13:22:53,671 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___1): "ebx"); [3777] [2024-11-07 13:22:53,673 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___2): "ebx"); [3782] [2024-11-07 13:22:53,673 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___3): "ebx"); [3787] [2024-11-07 13:22:53,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (tmp), "i" (1UL)); [3886-3887] [2024-11-07 13:22:53,735 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i[129978,129991] [2024-11-07 13:22:53,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 13:22:53,866 INFO L204 MainTranslator]: Completed translation [2024-11-07 13:22:53,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:53 WrapperNode [2024-11-07 13:22:53,868 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 13:22:53,869 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 13:22:53,871 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 13:22:53,871 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 13:22:53,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:53" (1/1) ... [2024-11-07 13:22:53,920 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:53" (1/1) ... [2024-11-07 13:22:53,997 INFO L138 Inliner]: procedures = 190, calls = 552, calls flagged for inlining = 74, calls inlined = 69, statements flattened = 1714 [2024-11-07 13:22:53,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 13:22:53,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 13:22:53,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 13:22:53,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 13:22:54,008 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:53" (1/1) ... [2024-11-07 13:22:54,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:53" (1/1) ... [2024-11-07 13:22:54,023 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:53" (1/1) ... [2024-11-07 13:22:54,189 INFO L175 MemorySlicer]: Split 205 memory accesses to 7 slices as follows [2, 13, 4, 14, 23, 122, 27]. 60 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 0, 0, 0, 2, 0]. The 128 writes are split as follows [0, 2, 2, 12, 23, 62, 27]. [2024-11-07 13:22:54,190 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:53" (1/1) ... [2024-11-07 13:22:54,193 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:53" (1/1) ... [2024-11-07 13:22:54,261 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:53" (1/1) ... [2024-11-07 13:22:54,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:53" (1/1) ... [2024-11-07 13:22:54,296 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:53" (1/1) ... [2024-11-07 13:22:54,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:53" (1/1) ... [2024-11-07 13:22:54,342 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 13:22:54,344 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 13:22:54,344 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 13:22:54,344 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 13:22:54,345 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:53" (1/1) ... [2024-11-07 13:22:54,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 13:22:54,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 13:22:54,379 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 13:22:54,386 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 13:22:54,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_serio_raw_mutex [2024-11-07 13:22:54,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_serio_raw_mutex [2024-11-07 13:22:54,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-07 13:22:54,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-07 13:22:54,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-07 13:22:54,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-07 13:22:54,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-07 13:22:54,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-07 13:22:54,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-07 13:22:54,407 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2024-11-07 13:22:54,407 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2024-11-07 13:22:54,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-07 13:22:54,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-07 13:22:54,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-07 13:22:54,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-07 13:22:54,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-07 13:22:54,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-07 13:22:54,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-07 13:22:54,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-07 13:22:54,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-07 13:22:54,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 13:22:54,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 13:22:54,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 13:22:54,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 13:22:54,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 13:22:54,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-07 13:22:54,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-07 13:22:54,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-07 13:22:54,409 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-07 13:22:54,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-07 13:22:54,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-07 13:22:54,410 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-07 13:22:54,410 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-07 13:22:54,410 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2024-11-07 13:22:54,410 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2024-11-07 13:22:54,410 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2024-11-07 13:22:54,410 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2024-11-07 13:22:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2024-11-07 13:22:54,412 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2024-11-07 13:22:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 13:22:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 13:22:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 13:22:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 13:22:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 13:22:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-07 13:22:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-07 13:22:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-07 13:22:54,412 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-07 13:22:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-07 13:22:54,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-07 13:22:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-07 13:22:54,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-07 13:22:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2024-11-07 13:22:54,412 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2024-11-07 13:22:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-07 13:22:54,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-07 13:22:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_disconnect [2024-11-07 13:22:54,412 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_disconnect [2024-11-07 13:22:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure serio_continue_rx [2024-11-07 13:22:54,412 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_continue_rx [2024-11-07 13:22:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-07 13:22:54,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-07 13:22:54,413 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 13:22:54,413 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 13:22:54,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 13:22:54,413 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_poll [2024-11-07 13:22:54,413 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_poll [2024-11-07 13:22:54,413 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-07 13:22:54,413 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-07 13:22:54,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-07 13:22:54,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-07 13:22:54,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 13:22:54,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-07 13:22:54,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-07 13:22:54,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 13:22:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure serio_set_drvdata [2024-11-07 13:22:54,415 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_set_drvdata [2024-11-07 13:22:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 13:22:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 13:22:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 13:22:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-07 13:22:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-07 13:22:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-07 13:22:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-07 13:22:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-07 13:22:54,415 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-07 13:22:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-07 13:22:54,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2024-11-07 13:22:54,416 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2024-11-07 13:22:54,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure serio_pause_rx [2024-11-07 13:22:54,416 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_pause_rx [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2024-11-07 13:22:54,416 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2024-11-07 13:22:54,416 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-07 13:22:54,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2024-11-07 13:22:54,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2024-11-07 13:22:54,417 INFO L130 BoogieDeclarations]: Found specification of procedure serio_get_drvdata [2024-11-07 13:22:54,417 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_get_drvdata [2024-11-07 13:22:54,417 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-07 13:22:54,417 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-07 13:22:54,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2024-11-07 13:22:54,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2024-11-07 13:22:54,417 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2024-11-07 13:22:54,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2024-11-07 13:22:54,417 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-07 13:22:54,417 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-07 13:22:54,417 INFO L130 BoogieDeclarations]: Found specification of procedure serio_close [2024-11-07 13:22:54,417 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_close [2024-11-07 13:22:54,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_serio_raw_mutex [2024-11-07 13:22:54,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_serio_raw_mutex [2024-11-07 13:22:54,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 13:22:54,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 13:22:54,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 13:22:54,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 13:22:54,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 13:22:54,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-07 13:22:54,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-07 13:22:54,417 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_write [2024-11-07 13:22:54,417 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_write [2024-11-07 13:22:54,417 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fasync [2024-11-07 13:22:54,417 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fasync [2024-11-07 13:22:54,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 13:22:54,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 13:22:54,890 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 13:22:54,893 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 13:22:54,958 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-07 13:23:00,997 INFO L? ?]: Removed 766 outVars from TransFormulas that were not future-live. [2024-11-07 13:23:00,997 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 13:23:01,026 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 13:23:01,026 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 13:23:01,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:23:01 BoogieIcfgContainer [2024-11-07 13:23:01,027 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 13:23:01,032 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 13:23:01,032 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 13:23:01,036 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 13:23:01,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:22:52" (1/3) ... [2024-11-07 13:23:01,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d225d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:23:01, skipping insertion in model container [2024-11-07 13:23:01,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:22:53" (2/3) ... [2024-11-07 13:23:01,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d225d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:23:01, skipping insertion in model container [2024-11-07 13:23:01,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:23:01" (3/3) ... [2024-11-07 13:23:01,040 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2024-11-07 13:23:01,055 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 13:23:01,056 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 13:23:01,124 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 13:23:01,136 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;@2b8a32d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 13:23:01,137 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 13:23:01,144 INFO L276 IsEmpty]: Start isEmpty. Operand has 549 states, 393 states have (on average 1.3231552162849873) internal successors, (520), 410 states have internal predecessors, (520), 115 states have call successors, (115), 40 states have call predecessors, (115), 39 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-07 13:23:01,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 13:23:01,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 13:23:01,156 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 13:23:01,157 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 13:23:01,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 13:23:01,161 INFO L85 PathProgramCache]: Analyzing trace with hash 221446513, now seen corresponding path program 1 times [2024-11-07 13:23:01,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 13:23:01,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263642874] [2024-11-07 13:23:01,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 13:23:01,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 13:23:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 13:23:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 13:23:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-07 13:23:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 13:23:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 13:23:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 13:23:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 13:23:02,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-07 13:23:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-07 13:23:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 13:23:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-07 13:23:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:02,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 13:23:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:03,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 13:23:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:03,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 13:23:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:03,045 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-07 13:23:03,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 13:23:03,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263642874] [2024-11-07 13:23:03,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263642874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 13:23:03,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 13:23:03,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 13:23:03,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528663883] [2024-11-07 13:23:03,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 13:23:03,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 13:23:03,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 13:23:03,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 13:23:03,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 13:23:03,078 INFO L87 Difference]: Start difference. First operand has 549 states, 393 states have (on average 1.3231552162849873) internal successors, (520), 410 states have internal predecessors, (520), 115 states have call successors, (115), 40 states have call predecessors, (115), 39 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-07 13:23:07,112 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 13:23:11,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:23:13,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 13:23:13,670 INFO L93 Difference]: Finished difference Result 1117 states and 1560 transitions. [2024-11-07 13:23:13,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 13:23:13,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 168 [2024-11-07 13:23:13,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 13:23:13,689 INFO L225 Difference]: With dead ends: 1117 [2024-11-07 13:23:13,689 INFO L226 Difference]: Without dead ends: 562 [2024-11-07 13:23:13,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-07 13:23:13,703 INFO L432 NwaCegarLoop]: 469 mSDtfsCounter, 405 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 261 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-07 13:23:13,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 1352 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 668 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2024-11-07 13:23:13,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-07 13:23:13,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 538. [2024-11-07 13:23:13,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 388 states have (on average 1.3041237113402062) internal successors, (506), 399 states have internal predecessors, (506), 111 states have call successors, (111), 39 states have call predecessors, (111), 38 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-07 13:23:13,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 720 transitions. [2024-11-07 13:23:13,787 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 720 transitions. Word has length 168 [2024-11-07 13:23:13,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 13:23:13,787 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 720 transitions. [2024-11-07 13:23:13,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-07 13:23:13,788 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 720 transitions. [2024-11-07 13:23:13,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 13:23:13,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 13:23:13,792 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 13:23:13,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 13:23:13,792 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 13:23:13,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 13:23:13,792 INFO L85 PathProgramCache]: Analyzing trace with hash 2103636861, now seen corresponding path program 1 times [2024-11-07 13:23:13,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 13:23:13,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954880430] [2024-11-07 13:23:13,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 13:23:13,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 13:23:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:14,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 13:23:14,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:14,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:14,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:14,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 13:23:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:14,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:14,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:14,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:14,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-07 13:23:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:14,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:14,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:14,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:14,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:14,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 13:23:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:14,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:14,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:14,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 13:23:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:14,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:14,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:14,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 13:23:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:14,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:14,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:14,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:14,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 13:23:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:15,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-07 13:23:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:15,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-07 13:23:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:15,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 13:23:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:15,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-07 13:23:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:15,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 13:23:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:15,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 13:23:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:15,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 13:23:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:15,103 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-07 13:23:15,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 13:23:15,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954880430] [2024-11-07 13:23:15,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954880430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 13:23:15,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 13:23:15,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 13:23:15,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580041530] [2024-11-07 13:23:15,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 13:23:15,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 13:23:15,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 13:23:15,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 13:23:15,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 13:23:15,106 INFO L87 Difference]: Start difference. First operand 538 states and 720 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-07 13:23:19,124 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 13:23:23,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:23:27,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:23:30,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 13:23:30,415 INFO L93 Difference]: Finished difference Result 1565 states and 2097 transitions. [2024-11-07 13:23:30,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 13:23:30,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 168 [2024-11-07 13:23:30,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 13:23:30,424 INFO L225 Difference]: With dead ends: 1565 [2024-11-07 13:23:30,424 INFO L226 Difference]: Without dead ends: 1063 [2024-11-07 13:23:30,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-07 13:23:30,426 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 1299 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 554 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 1601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 554 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2024-11-07 13:23:30,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 1676 Invalid, 1601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [554 Valid, 1044 Invalid, 3 Unknown, 0 Unchecked, 15.0s Time] [2024-11-07 13:23:30,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2024-11-07 13:23:30,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 1013. [2024-11-07 13:23:30,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 738 states have (on average 1.3075880758807588) internal successors, (965), 753 states have internal predecessors, (965), 199 states have call successors, (199), 76 states have call predecessors, (199), 75 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2024-11-07 13:23:30,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1355 transitions. [2024-11-07 13:23:30,494 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1355 transitions. Word has length 168 [2024-11-07 13:23:30,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 13:23:30,495 INFO L471 AbstractCegarLoop]: Abstraction has 1013 states and 1355 transitions. [2024-11-07 13:23:30,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-07 13:23:30,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1355 transitions. [2024-11-07 13:23:30,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 13:23:30,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 13:23:30,500 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 13:23:30,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 13:23:30,501 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 13:23:30,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 13:23:30,501 INFO L85 PathProgramCache]: Analyzing trace with hash 688012040, now seen corresponding path program 1 times [2024-11-07 13:23:30,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 13:23:30,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902740139] [2024-11-07 13:23:30,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 13:23:30,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 13:23:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 13:23:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 13:23:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-07 13:23:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:31,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 13:23:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 13:23:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 13:23:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 13:23:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-07 13:23:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-07 13:23:31,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 13:23:31,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-07 13:23:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 13:23:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 13:23:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 13:23:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 13:23:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:31,600 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-07 13:23:31,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 13:23:31,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902740139] [2024-11-07 13:23:31,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902740139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 13:23:31,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 13:23:31,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 13:23:31,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62587035] [2024-11-07 13:23:31,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 13:23:31,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 13:23:31,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 13:23:31,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 13:23:31,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 13:23:31,603 INFO L87 Difference]: Start difference. First operand 1013 states and 1355 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-07 13:23:35,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:23:39,683 WARN L539 Checker$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 13:23:43,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 13:23:43,498 INFO L93 Difference]: Finished difference Result 2549 states and 3351 transitions. [2024-11-07 13:23:43,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 13:23:43,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 174 [2024-11-07 13:23:43,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 13:23:43,512 INFO L225 Difference]: With dead ends: 2549 [2024-11-07 13:23:43,513 INFO L226 Difference]: Without dead ends: 1572 [2024-11-07 13:23:43,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-07 13:23:43,521 INFO L432 NwaCegarLoop]: 459 mSDtfsCounter, 1174 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 612 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 1368 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 612 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2024-11-07 13:23:43,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1221 Valid, 1368 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [612 Valid, 836 Invalid, 2 Unknown, 0 Unchecked, 11.5s Time] [2024-11-07 13:23:43,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2024-11-07 13:23:43,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1494. [2024-11-07 13:23:43,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1494 states, 1086 states have (on average 1.283609576427256) internal successors, (1394), 1111 states have internal predecessors, (1394), 272 states have call successors, (272), 132 states have call predecessors, (272), 135 states have return successors, (280), 260 states have call predecessors, (280), 264 states have call successors, (280) [2024-11-07 13:23:43,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 1946 transitions. [2024-11-07 13:23:43,631 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 1946 transitions. Word has length 174 [2024-11-07 13:23:43,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 13:23:43,631 INFO L471 AbstractCegarLoop]: Abstraction has 1494 states and 1946 transitions. [2024-11-07 13:23:43,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-07 13:23:43,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 1946 transitions. [2024-11-07 13:23:43,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-07 13:23:43,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 13:23:43,635 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 13:23:43,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 13:23:43,635 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 13:23:43,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 13:23:43,636 INFO L85 PathProgramCache]: Analyzing trace with hash -250230468, now seen corresponding path program 1 times [2024-11-07 13:23:43,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 13:23:43,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190639340] [2024-11-07 13:23:43,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 13:23:43,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 13:23:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 13:23:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:44,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:44,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 13:23:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-07 13:23:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 13:23:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:44,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 13:23:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 13:23:44,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 13:23:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-07 13:23:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-07 13:23:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 13:23:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-07 13:23:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 13:23:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 13:23:44,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 13:23:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:44,689 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-07 13:23:44,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 13:23:44,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190639340] [2024-11-07 13:23:44,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190639340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 13:23:44,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 13:23:44,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 13:23:44,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162701762] [2024-11-07 13:23:44,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 13:23:44,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 13:23:44,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 13:23:44,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 13:23:44,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 13:23:44,693 INFO L87 Difference]: Start difference. First operand 1494 states and 1946 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-07 13:23:48,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:23:52,735 WARN L539 Checker$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 13:23:54,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 13:23:54,614 INFO L93 Difference]: Finished difference Result 1568 states and 2042 transitions. [2024-11-07 13:23:54,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 13:23:54,615 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 173 [2024-11-07 13:23:54,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 13:23:54,624 INFO L225 Difference]: With dead ends: 1568 [2024-11-07 13:23:54,624 INFO L226 Difference]: Without dead ends: 1557 [2024-11-07 13:23:54,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 13:23:54,626 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 1151 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 461 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-11-07 13:23:54,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1235 Valid, 1081 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 519 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2024-11-07 13:23:54,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2024-11-07 13:23:54,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1494. [2024-11-07 13:23:54,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1494 states, 1086 states have (on average 1.281767955801105) internal successors, (1392), 1111 states have internal predecessors, (1392), 272 states have call successors, (272), 132 states have call predecessors, (272), 135 states have return successors, (280), 260 states have call predecessors, (280), 264 states have call successors, (280) [2024-11-07 13:23:54,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 1944 transitions. [2024-11-07 13:23:54,708 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 1944 transitions. Word has length 173 [2024-11-07 13:23:54,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 13:23:54,709 INFO L471 AbstractCegarLoop]: Abstraction has 1494 states and 1944 transitions. [2024-11-07 13:23:54,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-07 13:23:54,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 1944 transitions. [2024-11-07 13:23:54,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-07 13:23:54,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 13:23:54,713 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 13:23:54,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 13:23:54,714 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 13:23:54,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 13:23:54,714 INFO L85 PathProgramCache]: Analyzing trace with hash -192972166, now seen corresponding path program 1 times [2024-11-07 13:23:54,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 13:23:54,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865067653] [2024-11-07 13:23:54,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 13:23:54,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 13:23:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 13:23:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 13:23:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-07 13:23:55,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 13:23:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 13:23:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 13:23:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:23:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:23:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 13:23:55,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-07 13:23:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-07 13:23:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 13:23:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-07 13:23:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 13:23:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 13:23:55,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 13:23:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:23:55,723 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-07 13:23:55,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 13:23:55,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865067653] [2024-11-07 13:23:55,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865067653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 13:23:55,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 13:23:55,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 13:23:55,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208933322] [2024-11-07 13:23:55,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 13:23:55,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 13:23:55,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 13:23:55,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 13:23:55,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 13:23:55,725 INFO L87 Difference]: Start difference. First operand 1494 states and 1944 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-07 13:23:59,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:24:03,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:24:05,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 13:24:05,554 INFO L93 Difference]: Finished difference Result 1548 states and 2015 transitions. [2024-11-07 13:24:05,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 13:24:05,554 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 173 [2024-11-07 13:24:05,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 13:24:05,563 INFO L225 Difference]: With dead ends: 1548 [2024-11-07 13:24:05,563 INFO L226 Difference]: Without dead ends: 1545 [2024-11-07 13:24:05,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-07 13:24:05,564 INFO L432 NwaCegarLoop]: 454 mSDtfsCounter, 1122 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 456 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-11-07 13:24:05,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 1038 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 516 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2024-11-07 13:24:05,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2024-11-07 13:24:05,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1493. [2024-11-07 13:24:05,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 1086 states have (on average 1.2808471454880295) internal successors, (1391), 1110 states have internal predecessors, (1391), 271 states have call successors, (271), 132 states have call predecessors, (271), 135 states have return successors, (280), 260 states have call predecessors, (280), 264 states have call successors, (280) [2024-11-07 13:24:05,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 1942 transitions. [2024-11-07 13:24:05,637 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 1942 transitions. Word has length 173 [2024-11-07 13:24:05,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 13:24:05,637 INFO L471 AbstractCegarLoop]: Abstraction has 1493 states and 1942 transitions. [2024-11-07 13:24:05,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-07 13:24:05,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 1942 transitions. [2024-11-07 13:24:05,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 13:24:05,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 13:24:05,640 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 13:24:05,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 13:24:05,640 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 13:24:05,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 13:24:05,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1687275438, now seen corresponding path program 1 times [2024-11-07 13:24:05,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 13:24:05,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781372069] [2024-11-07 13:24:05,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 13:24:05,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 13:24:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 13:24:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:24:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:24:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 13:24:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:24:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:24:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-07 13:24:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:24:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:24:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 13:24:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:24:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:24:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 13:24:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:24:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:24:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 13:24:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:24:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:24:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 13:24:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-07 13:24:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-07 13:24:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 13:24:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-07 13:24:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 13:24:06,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 13:24:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 13:24:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:06,449 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-07 13:24:06,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 13:24:06,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781372069] [2024-11-07 13:24:06,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781372069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 13:24:06,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 13:24:06,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 13:24:06,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826173565] [2024-11-07 13:24:06,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 13:24:06,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 13:24:06,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 13:24:06,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 13:24:06,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 13:24:06,452 INFO L87 Difference]: Start difference. First operand 1493 states and 1942 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-07 13:24:10,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:24:14,508 WARN L539 Checker$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 13:24:16,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 13:24:16,726 INFO L93 Difference]: Finished difference Result 1547 states and 2013 transitions. [2024-11-07 13:24:16,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 13:24:16,727 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 174 [2024-11-07 13:24:16,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 13:24:16,734 INFO L225 Difference]: With dead ends: 1547 [2024-11-07 13:24:16,734 INFO L226 Difference]: Without dead ends: 1544 [2024-11-07 13:24:16,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-07 13:24:16,736 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 952 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 335 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-11-07 13:24:16,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 1303 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 670 Invalid, 2 Unknown, 0 Unchecked, 10.0s Time] [2024-11-07 13:24:16,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2024-11-07 13:24:16,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1492. [2024-11-07 13:24:16,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1086 states have (on average 1.279926335174954) internal successors, (1390), 1109 states have internal predecessors, (1390), 270 states have call successors, (270), 132 states have call predecessors, (270), 135 states have return successors, (280), 260 states have call predecessors, (280), 264 states have call successors, (280) [2024-11-07 13:24:16,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 1940 transitions. [2024-11-07 13:24:16,851 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 1940 transitions. Word has length 174 [2024-11-07 13:24:16,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 13:24:16,853 INFO L471 AbstractCegarLoop]: Abstraction has 1492 states and 1940 transitions. [2024-11-07 13:24:16,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-07 13:24:16,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 1940 transitions. [2024-11-07 13:24:16,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-07 13:24:16,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 13:24:16,856 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 13:24:16,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 13:24:16,856 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 13:24:16,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 13:24:16,857 INFO L85 PathProgramCache]: Analyzing trace with hash -766031747, now seen corresponding path program 1 times [2024-11-07 13:24:16,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 13:24:16,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239874935] [2024-11-07 13:24:16,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 13:24:16,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 13:24:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 13:24:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:24:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:24:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 13:24:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:24:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:24:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-07 13:24:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:24:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:24:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 13:24:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:24:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:24:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 13:24:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:24:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:24:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 13:24:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:24:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 13:24:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 13:24:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-07 13:24:17,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-07 13:24:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 13:24:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:17,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-07 13:24:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:18,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 13:24:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:18,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-07 13:24:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:18,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 13:24:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:24:18,023 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-07 13:24:18,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 13:24:18,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239874935] [2024-11-07 13:24:18,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239874935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 13:24:18,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 13:24:18,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 13:24:18,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330293729] [2024-11-07 13:24:18,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 13:24:18,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 13:24:18,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 13:24:18,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 13:24:18,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 13:24:18,026 INFO L87 Difference]: Start difference. First operand 1492 states and 1940 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16)