./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.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', '63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.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 63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 12:57:36,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 12:57:36,950 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 12:57:36,958 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 12:57:36,960 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 12:57:36,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 12:57:36,992 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 12:57:36,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 12:57:36,992 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 12:57:36,993 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 12:57:36,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 12:57:36,993 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 12:57:36,994 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 12:57:36,994 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 12:57:36,994 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 12:57:36,995 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 12:57:36,995 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 12:57:36,995 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 12:57:36,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 12:57:36,995 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 12:57:36,995 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 12:57:36,995 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 12:57:36,995 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 12:57:36,996 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 12:57:36,996 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 12:57:36,996 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 12:57:36,996 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 12:57:36,996 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 12:57:36,997 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 12:57:36,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 12:57:36,997 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 12:57:36,997 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 12:57:36,997 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 12:57:36,997 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 12:57:36,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 12:57:36,998 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 12:57:36,998 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 12:57:36,998 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 12:57:36,998 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 12:57:36,999 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 -> 63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99 [2024-11-07 12:57:37,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 12:57:37,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 12:57:37,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 12:57:37,275 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 12:57:37,275 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 12:57:37,277 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2024-11-07 12:57:38,532 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 12:57:39,048 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 12:57:39,049 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2024-11-07 12:57:39,083 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0c3844317/c6b106f516af47178d998aeeb566e0fc/FLAG98a96637b [2024-11-07 12:57:39,126 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0c3844317/c6b106f516af47178d998aeeb566e0fc [2024-11-07 12:57:39,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 12:57:39,130 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 12:57:39,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 12:57:39,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 12:57:39,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 12:57:39,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:57:39" (1/1) ... [2024-11-07 12:57:39,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e73e1e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:39, skipping insertion in model container [2024-11-07 12:57:39,138 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:57:39" (1/1) ... [2024-11-07 12:57:39,220 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 12:57:39,729 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i[104745,104758] [2024-11-07 12:57:40,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 12:57:40,051 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 12:57:40,147 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i[104745,104758] [2024-11-07 12:57:40,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 12:57:40,363 INFO L204 MainTranslator]: Completed translation [2024-11-07 12:57:40,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:40 WrapperNode [2024-11-07 12:57:40,364 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 12:57:40,365 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 12:57:40,365 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 12:57:40,365 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 12:57:40,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:40" (1/1) ... [2024-11-07 12:57:40,412 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:40" (1/1) ... [2024-11-07 12:57:40,511 INFO L138 Inliner]: procedures = 113, calls = 1240, calls flagged for inlining = 52, calls inlined = 49, statements flattened = 2689 [2024-11-07 12:57:40,512 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 12:57:40,513 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 12:57:40,513 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 12:57:40,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 12:57:40,520 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:40" (1/1) ... [2024-11-07 12:57:40,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:40" (1/1) ... [2024-11-07 12:57:40,536 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:40" (1/1) ... [2024-11-07 12:57:40,694 INFO L175 MemorySlicer]: Split 666 memory accesses to 14 slices as follows [2, 5, 7, 44, 7, 22, 83, 175, 175, 5, 2, 125, 6, 8]. 26 percent of accesses are in the largest equivalence class. The 213 initializations are split as follows [2, 5, 0, 0, 0, 0, 63, 5, 0, 5, 0, 125, 0, 8]. The 322 writes are split as follows [0, 0, 0, 44, 0, 4, 20, 97, 150, 0, 1, 0, 6, 0]. [2024-11-07 12:57:40,695 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:40" (1/1) ... [2024-11-07 12:57:40,695 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:40" (1/1) ... [2024-11-07 12:57:40,768 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:40" (1/1) ... [2024-11-07 12:57:40,781 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:40" (1/1) ... [2024-11-07 12:57:40,809 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:40" (1/1) ... [2024-11-07 12:57:40,818 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:40" (1/1) ... [2024-11-07 12:57:40,836 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 12:57:40,840 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 12:57:40,840 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 12:57:40,840 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 12:57:40,841 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:40" (1/1) ... [2024-11-07 12:57:40,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 12:57:40,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 12:57:40,873 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 12:57:40,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 12:57:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#0 [2024-11-07 12:57:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#1 [2024-11-07 12:57:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#2 [2024-11-07 12:57:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#3 [2024-11-07 12:57:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#4 [2024-11-07 12:57:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#5 [2024-11-07 12:57:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#6 [2024-11-07 12:57:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#7 [2024-11-07 12:57:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#8 [2024-11-07 12:57:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#9 [2024-11-07 12:57:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#10 [2024-11-07 12:57:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#11 [2024-11-07 12:57:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#12 [2024-11-07 12:57:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#13 [2024-11-07 12:57:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#0 [2024-11-07 12:57:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#1 [2024-11-07 12:57:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#2 [2024-11-07 12:57:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#3 [2024-11-07 12:57:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#4 [2024-11-07 12:57:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#5 [2024-11-07 12:57:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#6 [2024-11-07 12:57:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#7 [2024-11-07 12:57:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#8 [2024-11-07 12:57:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#9 [2024-11-07 12:57:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#10 [2024-11-07 12:57:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#11 [2024-11-07 12:57:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#12 [2024-11-07 12:57:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#13 [2024-11-07 12:57:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-07 12:57:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-07 12:57:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-07 12:57:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-07 12:57:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-07 12:57:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-07 12:57:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-07 12:57:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-07 12:57:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-07 12:57:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-07 12:57:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-07 12:57:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-07 12:57:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-07 12:57:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-07 12:57:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-07 12:57:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-07 12:57:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-07 12:57:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-07 12:57:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-07 12:57:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-07 12:57:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-07 12:57:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-07 12:57:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-07 12:57:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-07 12:57:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-07 12:57:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-07 12:57:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-07 12:57:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-07 12:57:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-07 12:57:40,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-07 12:57:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-07 12:57:40,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-07 12:57:40,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-11-07 12:57:40,905 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-07 12:57:40,905 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-07 12:57:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-07 12:57:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-07 12:57:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-07 12:57:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-07 12:57:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-07 12:57:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-07 12:57:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-07 12:57:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-07 12:57:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-07 12:57:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-07 12:57:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-07 12:57:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-07 12:57:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-07 12:57:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 12:57:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 12:57:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 12:57:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-07 12:57:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-07 12:57:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_disconnect [2024-11-07 12:57:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_disconnect [2024-11-07 12:57:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2024-11-07 12:57:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2024-11-07 12:57:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 12:57:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-07 12:57:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2024-11-07 12:57:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-07 12:57:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-07 12:57:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2024-11-07 12:57:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-07 12:57:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-07 12:57:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-07 12:57:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-07 12:57:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-07 12:57:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 12:57:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 12:57:41,470 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 12:57:41,473 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 12:57:41,558 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-07 12:57:41,644 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-07 12:57:50,437 INFO L? ?]: Removed 894 outVars from TransFormulas that were not future-live. [2024-11-07 12:57:50,437 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 12:57:50,467 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 12:57:50,470 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-07 12:57:50,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:57:50 BoogieIcfgContainer [2024-11-07 12:57:50,471 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 12:57:50,475 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 12:57:50,475 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 12:57:50,480 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 12:57:50,480 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:57:39" (1/3) ... [2024-11-07 12:57:50,481 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@547793eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:57:50, skipping insertion in model container [2024-11-07 12:57:50,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:40" (2/3) ... [2024-11-07 12:57:50,481 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@547793eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:57:50, skipping insertion in model container [2024-11-07 12:57:50,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:57:50" (3/3) ... [2024-11-07 12:57:50,482 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2024-11-07 12:57:50,495 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 12:57:50,495 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 12:57:50,567 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 12:57:50,580 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;@6864c0fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 12:57:50,581 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 12:57:50,587 INFO L276 IsEmpty]: Start isEmpty. Operand has 523 states, 383 states have (on average 1.3759791122715406) internal successors, (527), 409 states have internal predecessors, (527), 119 states have call successors, (119), 21 states have call predecessors, (119), 19 states have return successors, (115), 103 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-07 12:57:50,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-07 12:57:50,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:57:50,595 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 12:57:50,596 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:57:50,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:57:50,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1757756952, now seen corresponding path program 1 times [2024-11-07 12:57:50,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:57:50,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902921760] [2024-11-07 12:57:50,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:57:50,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:57:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:57:53,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:57:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:57:53,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 12:57:53,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:57:53,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902921760] [2024-11-07 12:57:53,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902921760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:57:53,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:57:53,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:57:53,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682766751] [2024-11-07 12:57:53,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:57:53,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:57:53,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:57:53,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:57:53,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:57:53,278 INFO L87 Difference]: Start difference. First operand has 523 states, 383 states have (on average 1.3759791122715406) internal successors, (527), 409 states have internal predecessors, (527), 119 states have call successors, (119), 21 states have call predecessors, (119), 19 states have return successors, (115), 103 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 12:57:57,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:58:01,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:58:07,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:58:07,654 INFO L93 Difference]: Finished difference Result 1564 states and 2343 transitions. [2024-11-07 12:58:07,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 12:58:07,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2024-11-07 12:58:07,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:58:07,676 INFO L225 Difference]: With dead ends: 1564 [2024-11-07 12:58:07,676 INFO L226 Difference]: Without dead ends: 1028 [2024-11-07 12:58:07,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:58:07,685 INFO L432 NwaCegarLoop]: 1238 mSDtfsCounter, 724 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 150 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 2517 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2024-11-07 12:58:07,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 2517 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 629 Invalid, 2 Unknown, 0 Unchecked, 14.1s Time] [2024-11-07 12:58:07,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-11-07 12:58:07,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 994. [2024-11-07 12:58:07,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 734 states have (on average 1.3433242506811989) internal successors, (986), 770 states have internal predecessors, (986), 223 states have call successors, (223), 37 states have call predecessors, (223), 36 states have return successors, (218), 194 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-07 12:58:07,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1427 transitions. [2024-11-07 12:58:07,849 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1427 transitions. Word has length 22 [2024-11-07 12:58:07,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:58:07,850 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1427 transitions. [2024-11-07 12:58:07,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 12:58:07,850 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1427 transitions. [2024-11-07 12:58:07,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-07 12:58:07,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:58:07,853 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 12:58:07,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 12:58:07,854 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:58:07,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:58:07,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1292697066, now seen corresponding path program 1 times [2024-11-07 12:58:07,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:58:07,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420305242] [2024-11-07 12:58:07,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:58:07,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:58:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:09,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:58:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:09,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 12:58:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:09,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 12:58:09,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:58:09,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420305242] [2024-11-07 12:58:09,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420305242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:58:09,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:58:09,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:58:09,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393388379] [2024-11-07 12:58:09,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:58:09,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:58:09,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:58:09,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:58:09,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:58:09,572 INFO L87 Difference]: Start difference. First operand 994 states and 1427 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 12:58:13,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:58:16,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:58:16,445 INFO L93 Difference]: Finished difference Result 1054 states and 1505 transitions. [2024-11-07 12:58:16,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 12:58:16,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-07 12:58:16,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:58:16,457 INFO L225 Difference]: With dead ends: 1054 [2024-11-07 12:58:16,457 INFO L226 Difference]: Without dead ends: 1041 [2024-11-07 12:58:16,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:58:16,459 INFO L432 NwaCegarLoop]: 666 mSDtfsCounter, 708 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 131 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-07 12:58:16,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 1082 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 254 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2024-11-07 12:58:16,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2024-11-07 12:58:16,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 994. [2024-11-07 12:58:16,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 734 states have (on average 1.3419618528610355) internal successors, (985), 770 states have internal predecessors, (985), 223 states have call successors, (223), 37 states have call predecessors, (223), 36 states have return successors, (218), 194 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-07 12:58:16,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1426 transitions. [2024-11-07 12:58:16,516 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1426 transitions. Word has length 32 [2024-11-07 12:58:16,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:58:16,516 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1426 transitions. [2024-11-07 12:58:16,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 12:58:16,517 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1426 transitions. [2024-11-07 12:58:16,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-07 12:58:16,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:58:16,518 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 12:58:16,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 12:58:16,518 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:58:16,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:58:16,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1349955368, now seen corresponding path program 1 times [2024-11-07 12:58:16,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:58:16,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155022957] [2024-11-07 12:58:16,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:58:16,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:58:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:18,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:58:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:18,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 12:58:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:18,600 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 12:58:18,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:58:18,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155022957] [2024-11-07 12:58:18,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155022957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:58:18,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:58:18,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:58:18,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030406245] [2024-11-07 12:58:18,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:58:18,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:58:18,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:58:18,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:58:18,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:58:18,604 INFO L87 Difference]: Start difference. First operand 994 states and 1426 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 12:58:22,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:58:27,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:58:27,447 INFO L93 Difference]: Finished difference Result 3023 states and 4351 transitions. [2024-11-07 12:58:27,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 12:58:27,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-07 12:58:27,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:58:27,463 INFO L225 Difference]: With dead ends: 3023 [2024-11-07 12:58:27,463 INFO L226 Difference]: Without dead ends: 2041 [2024-11-07 12:58:27,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:58:27,468 INFO L432 NwaCegarLoop]: 654 mSDtfsCounter, 758 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 248 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 1582 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-11-07 12:58:27,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 1582 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 446 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2024-11-07 12:58:27,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2041 states. [2024-11-07 12:58:27,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2041 to 1973. [2024-11-07 12:58:27,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1973 states, 1460 states have (on average 1.3390410958904109) internal successors, (1955), 1528 states have internal predecessors, (1955), 439 states have call successors, (439), 72 states have call predecessors, (439), 73 states have return successors, (442), 386 states have call predecessors, (442), 434 states have call successors, (442) [2024-11-07 12:58:27,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 2836 transitions. [2024-11-07 12:58:27,586 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 2836 transitions. Word has length 32 [2024-11-07 12:58:27,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:58:27,587 INFO L471 AbstractCegarLoop]: Abstraction has 1973 states and 2836 transitions. [2024-11-07 12:58:27,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 12:58:27,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 2836 transitions. [2024-11-07 12:58:27,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-07 12:58:27,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:58:27,588 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 12:58:27,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 12:58:27,589 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:58:27,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:58:27,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1101314634, now seen corresponding path program 1 times [2024-11-07 12:58:27,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:58:27,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672241774] [2024-11-07 12:58:27,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:58:27,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:58:28,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:29,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:58:29,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:29,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 12:58:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:29,373 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 12:58:29,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:58:29,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672241774] [2024-11-07 12:58:29,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672241774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:58:29,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:58:29,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:58:29,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425387895] [2024-11-07 12:58:29,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:58:29,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:58:29,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:58:29,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:58:29,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:58:29,375 INFO L87 Difference]: Start difference. First operand 1973 states and 2836 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 12:58:33,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 12:58:39,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:58:39,299 INFO L93 Difference]: Finished difference Result 6004 states and 8633 transitions. [2024-11-07 12:58:39,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 12:58:39,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2024-11-07 12:58:39,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:58:39,322 INFO L225 Difference]: With dead ends: 6004 [2024-11-07 12:58:39,323 INFO L226 Difference]: Without dead ends: 4043 [2024-11-07 12:58:39,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:58:39,331 INFO L432 NwaCegarLoop]: 1186 mSDtfsCounter, 728 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 149 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 2423 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-11-07 12:58:39,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 2423 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 609 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2024-11-07 12:58:39,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4043 states. [2024-11-07 12:58:39,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4043 to 3920. [2024-11-07 12:58:39,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 2903 states have (on average 1.3368928694454012) internal successors, (3881), 3035 states have internal predecessors, (3881), 871 states have call successors, (871), 142 states have call predecessors, (871), 145 states have return successors, (882), 770 states have call predecessors, (882), 866 states have call successors, (882) [2024-11-07 12:58:39,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 5634 transitions. [2024-11-07 12:58:39,518 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 5634 transitions. Word has length 33 [2024-11-07 12:58:39,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:58:39,519 INFO L471 AbstractCegarLoop]: Abstraction has 3920 states and 5634 transitions. [2024-11-07 12:58:39,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 12:58:39,519 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 5634 transitions. [2024-11-07 12:58:39,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-07 12:58:39,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:58:39,522 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 12:58:39,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 12:58:39,522 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:58:39,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:58:39,524 INFO L85 PathProgramCache]: Analyzing trace with hash 218731499, now seen corresponding path program 1 times [2024-11-07 12:58:39,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:58:39,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743129149] [2024-11-07 12:58:39,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:58:39,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:58:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:41,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:58:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:41,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 12:58:41,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:41,030 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 12:58:41,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:58:41,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743129149] [2024-11-07 12:58:41,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743129149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:58:41,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:58:41,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:58:41,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816206976] [2024-11-07 12:58:41,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:58:41,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:58:41,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:58:41,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:58:41,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:58:41,033 INFO L87 Difference]: Start difference. First operand 3920 states and 5634 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 12:58:45,094 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 12:58:50,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:58:50,611 INFO L93 Difference]: Finished difference Result 4041 states and 5802 transitions. [2024-11-07 12:58:50,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 12:58:50,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2024-11-07 12:58:50,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:58:50,632 INFO L225 Difference]: With dead ends: 4041 [2024-11-07 12:58:50,632 INFO L226 Difference]: Without dead ends: 4038 [2024-11-07 12:58:50,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:58:50,635 INFO L432 NwaCegarLoop]: 1185 mSDtfsCounter, 725 mSDsluCounter, 1234 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 146 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 2419 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-11-07 12:58:50,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 2419 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 602 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2024-11-07 12:58:50,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4038 states. [2024-11-07 12:58:50,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4038 to 3921. [2024-11-07 12:58:50,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3921 states, 2904 states have (on average 1.3367768595041323) internal successors, (3882), 3036 states have internal predecessors, (3882), 871 states have call successors, (871), 142 states have call predecessors, (871), 145 states have return successors, (882), 770 states have call predecessors, (882), 866 states have call successors, (882) [2024-11-07 12:58:50,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3921 states to 3921 states and 5635 transitions. [2024-11-07 12:58:50,824 INFO L78 Accepts]: Start accepts. Automaton has 3921 states and 5635 transitions. Word has length 34 [2024-11-07 12:58:50,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:58:50,826 INFO L471 AbstractCegarLoop]: Abstraction has 3921 states and 5635 transitions. [2024-11-07 12:58:50,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 12:58:50,826 INFO L276 IsEmpty]: Start isEmpty. Operand 3921 states and 5635 transitions. [2024-11-07 12:58:50,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-07 12:58:50,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:58:50,828 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 12:58:50,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 12:58:50,828 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:58:50,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:58:50,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1809506471, now seen corresponding path program 1 times [2024-11-07 12:58:50,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:58:50,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641843078] [2024-11-07 12:58:50,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:58:50,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:58:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:52,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:58:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:52,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 12:58:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:58:52,153 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 12:58:52,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:58:52,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641843078] [2024-11-07 12:58:52,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641843078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:58:52,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:58:52,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:58:52,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814384966] [2024-11-07 12:58:52,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:58:52,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:58:52,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:58:52,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:58:52,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:58:52,156 INFO L87 Difference]: Start difference. First operand 3921 states and 5635 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 12:58:56,191 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 12:58:59,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 12:58:59,025 INFO L93 Difference]: Finished difference Result 4037 states and 5798 transitions. [2024-11-07 12:58:59,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 12:58:59,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2024-11-07 12:58:59,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 12:58:59,049 INFO L225 Difference]: With dead ends: 4037 [2024-11-07 12:58:59,049 INFO L226 Difference]: Without dead ends: 4034 [2024-11-07 12:58:59,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 12:58:59,053 INFO L432 NwaCegarLoop]: 649 mSDtfsCounter, 687 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 128 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-07 12:58:59,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 1039 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 249 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2024-11-07 12:58:59,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4034 states. [2024-11-07 12:58:59,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4034 to 3920. [2024-11-07 12:58:59,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 2904 states have (on average 1.3364325068870524) internal successors, (3881), 3035 states have internal predecessors, (3881), 870 states have call successors, (870), 142 states have call predecessors, (870), 145 states have return successors, (882), 770 states have call predecessors, (882), 866 states have call successors, (882) [2024-11-07 12:58:59,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 5633 transitions. [2024-11-07 12:58:59,343 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 5633 transitions. Word has length 35 [2024-11-07 12:58:59,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 12:58:59,344 INFO L471 AbstractCegarLoop]: Abstraction has 3920 states and 5633 transitions. [2024-11-07 12:58:59,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-07 12:58:59,344 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 5633 transitions. [2024-11-07 12:58:59,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-07 12:58:59,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 12:58:59,348 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 12:58:59,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 12:58:59,348 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 12:58:59,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 12:58:59,348 INFO L85 PathProgramCache]: Analyzing trace with hash -260369234, now seen corresponding path program 1 times [2024-11-07 12:58:59,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 12:58:59,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554326267] [2024-11-07 12:58:59,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 12:58:59,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 12:59:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:00,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 12:59:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:00,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 12:59:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 12:59:00,825 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 12:59:00,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 12:59:00,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554326267] [2024-11-07 12:59:00,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554326267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 12:59:00,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 12:59:00,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 12:59:00,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517517402] [2024-11-07 12:59:00,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 12:59:00,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 12:59:00,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 12:59:00,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 12:59:00,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 12:59:00,828 INFO L87 Difference]: Start difference. First operand 3920 states and 5633 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)