./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 27c97bcf411d26ec272f425e404581082a84d844ce897669cae8d1db38d078c4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 18:06:27,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 18:06:27,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 18:06:27,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 18:06:27,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 18:06:27,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 18:06:27,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 18:06:27,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 18:06:27,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 18:06:27,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 18:06:27,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 18:06:27,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 18:06:27,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 18:06:27,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 18:06:27,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 18:06:27,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 18:06:27,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 18:06:27,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 18:06:27,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 18:06:27,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 18:06:27,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 18:06:27,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 18:06:27,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 18:06:27,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 18:06:27,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 18:06:27,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 18:06:27,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 18:06:27,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 18:06:27,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 18:06:27,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 18:06:27,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 18:06:27,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 18:06:27,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 18:06:27,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 18:06:27,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 18:06:27,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 18:06:27,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 18:06:27,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 18:06:27,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 18:06:27,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 18:06:27,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 18:06:27,850 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 18:06:27,864 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 18:06:27,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 18:06:27,865 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 18:06:27,865 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 18:06:27,866 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 18:06:27,866 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 18:06:27,866 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 18:06:27,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 18:06:27,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 18:06:27,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 18:06:27,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 18:06:27,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 18:06:27,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 18:06:27,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 18:06:27,867 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 18:06:27,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 18:06:27,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 18:06:27,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 18:06:27,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 18:06:27,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:06:27,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 18:06:27,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 18:06:27,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 18:06:27,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 18:06:27,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 18:06:27,869 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 18:06:27,869 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 18:06:27,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 18:06:27,869 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 18:06:27,869 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27c97bcf411d26ec272f425e404581082a84d844ce897669cae8d1db38d078c4 [2021-11-06 18:06:28,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 18:06:28,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 18:06:28,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 18:06:28,103 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 18:06:28,104 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 18:06:28,105 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-06 18:06:28,173 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d360e7dfa/f114458000934bea97506dfb6a1565e6/FLAG1f9f62329 [2021-11-06 18:06:28,886 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 18:06:28,886 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-06 18:06:28,934 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d360e7dfa/f114458000934bea97506dfb6a1565e6/FLAG1f9f62329 [2021-11-06 18:06:29,443 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d360e7dfa/f114458000934bea97506dfb6a1565e6 [2021-11-06 18:06:29,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 18:06:29,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 18:06:29,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 18:06:29,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 18:06:29,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 18:06:29,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:06:29" (1/1) ... [2021-11-06 18:06:29,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33db1409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:06:29, skipping insertion in model container [2021-11-06 18:06:29,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:06:29" (1/1) ... [2021-11-06 18:06:29,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 18:06:29,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 18:06:34,370 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[624921,624934] [2021-11-06 18:06:34,372 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[625066,625079] [2021-11-06 18:06:34,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:06:34,461 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 18:06:35,092 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[624921,624934] [2021-11-06 18:06:35,093 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[625066,625079] [2021-11-06 18:06:35,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:06:35,326 INFO L208 MainTranslator]: Completed translation [2021-11-06 18:06:35,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:06:35 WrapperNode [2021-11-06 18:06:35,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 18:06:35,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 18:06:35,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 18:06:35,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 18:06:35,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:06:35" (1/1) ... [2021-11-06 18:06:35,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:06:35" (1/1) ... [2021-11-06 18:06:36,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 18:06:36,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 18:06:36,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 18:06:36,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 18:06:36,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:06:35" (1/1) ... [2021-11-06 18:06:36,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:06:35" (1/1) ... [2021-11-06 18:06:36,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:06:35" (1/1) ... [2021-11-06 18:06:36,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:06:35" (1/1) ... [2021-11-06 18:06:37,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:06:35" (1/1) ... [2021-11-06 18:06:37,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:06:35" (1/1) ... [2021-11-06 18:06:37,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:06:35" (1/1) ... [2021-11-06 18:06:37,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 18:06:37,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 18:06:37,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 18:06:37,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 18:06:37,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:06:35" (1/1) ... [2021-11-06 18:06:37,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:06:37,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:06:37,747 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 18:06:37,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 18:06:37,773 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2021-11-06 18:06:37,774 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-06 18:06:37,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 18:06:37,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 18:06:37,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 18:06:37,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 18:06:37,774 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2021-11-06 18:06:37,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 18:06:37,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 18:06:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 18:06:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 18:06:37,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 18:06:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 18:06:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 18:06:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 18:06:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 18:06:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 18:06:37,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 18:06:37,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 18:12:30,879 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-06 18:12:30,880 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 18:12:30,880 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 18:12:30,880 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-06 18:12:30,881 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11661-1: __copy_from_user_nocheck_#t~ret1202 := copy_user_generic_#res;__copy_from_user_nocheck_~tmp___2~9 := __copy_from_user_nocheck_#t~ret1202;havoc __copy_from_user_nocheck_#t~ret1202;__copy_from_user_nocheck_#res := (if __copy_from_user_nocheck_~tmp___2~9 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~9 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~9 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-06 18:12:30,881 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11661-3: __copy_from_user_nocheck_#t~ret1202 := copy_user_generic_#res;__copy_from_user_nocheck_~tmp___2~9 := __copy_from_user_nocheck_#t~ret1202;havoc __copy_from_user_nocheck_#t~ret1202;__copy_from_user_nocheck_#res := (if __copy_from_user_nocheck_~tmp___2~9 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~9 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~9 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-06 18:12:30,881 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11661-5: __copy_to_user_nocheck_#t~ret1207 := copy_user_generic_#res;__copy_to_user_nocheck_~tmp___2~10 := __copy_to_user_nocheck_#t~ret1207;havoc __copy_to_user_nocheck_#t~ret1207;__copy_to_user_nocheck_#res := (if __copy_to_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-06 18:12:30,882 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11661-7: __copy_to_user_nocheck_#t~ret1207 := copy_user_generic_#res;__copy_to_user_nocheck_~tmp___2~10 := __copy_to_user_nocheck_#t~ret1207;havoc __copy_to_user_nocheck_#t~ret1207;__copy_to_user_nocheck_#res := (if __copy_to_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-06 18:12:30,882 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11680: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 18:12:30,882 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11680-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 18:12:30,882 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683-1: assume 2 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,882 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683-1: assume !(2 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,882 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume 2 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,882 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume !(2 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,883 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11684: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 18:12:30,883 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11684-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 18:12:30,883 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687-1: assume 4 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,883 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687-1: assume !(4 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,883 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687: assume 4 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,883 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687: assume !(4 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,883 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11688: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 18:12:30,883 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11688-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 18:12:30,884 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691-1: assume 8 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,884 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691-1: assume !(8 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,884 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691: assume 8 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,884 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691: assume !(8 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,884 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11692: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 18:12:30,885 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11692-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 18:12:30,885 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695-1: assume 10 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,885 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695-1: assume !(10 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,885 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: assume 10 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,885 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: assume !(10 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,885 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11696: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~17 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 18:12:30,885 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11696-1: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~17 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 18:12:30,885 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699-1: assume 16 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,886 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699-1: assume !(16 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,886 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699: assume 16 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,886 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699: assume !(16 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,886 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11700: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~17 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 18:12:30,887 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11700-1: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~17 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 18:12:30,891 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11703-1: copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_from_user_nocheck_~dst.base, __copy_from_user_nocheck_~dst.offset, __copy_from_user_nocheck_~src.base, __copy_from_user_nocheck_~src.offset, __copy_from_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~16;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~16;copy_user_generic_#res := copy_user_generic_~ret~16 % 4294967296; [2021-11-06 18:12:30,892 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11703: copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_from_user_nocheck_~dst.base, __copy_from_user_nocheck_~dst.offset, __copy_from_user_nocheck_~src.base, __copy_from_user_nocheck_~src.offset, __copy_from_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~16;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~16;copy_user_generic_#res := copy_user_generic_~ret~16 % 4294967296; [2021-11-06 18:12:30,893 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731-1: assume 0 != __copy_from_user_nocheck_~tmp___0~23;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 18:12:30,893 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731-1: assume !(0 != __copy_from_user_nocheck_~tmp___0~23);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 18:12:30,893 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731: assume 0 != __copy_from_user_nocheck_~tmp___0~23;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 18:12:30,893 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731: assume !(0 != __copy_from_user_nocheck_~tmp___0~23);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 18:12:30,893 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746: assume 0 != __copy_from_user_nocheck_~tmp___1~13;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 18:12:30,894 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746: assume !(0 != __copy_from_user_nocheck_~tmp___1~13);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 18:12:30,894 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746-1: assume 0 != __copy_from_user_nocheck_~tmp___1~13;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 18:12:30,894 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746-1: assume !(0 != __copy_from_user_nocheck_~tmp___1~13);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-06 18:12:30,894 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11789-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 18:12:30,894 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11789: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 18:12:30,894 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792: assume 2 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,894 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792: assume !(2 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,895 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792-1: assume 2 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,895 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792-1: assume !(2 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,895 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11793-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 18:12:30,895 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11793: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 18:12:30,895 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796: assume 4 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,895 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796: assume !(4 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,895 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796-1: assume 4 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,895 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796-1: assume !(4 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,896 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11797-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 18:12:30,896 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11797: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 18:12:30,896 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800: assume 8 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,896 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800: assume !(8 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,896 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800-1: assume 8 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,896 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800-1: assume !(8 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,896 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11801-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 18:12:30,897 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11801: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 18:12:30,897 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804: assume 10 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,897 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804: assume !(10 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,897 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804-1: assume 10 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,898 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804-1: assume !(10 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,898 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11805-1: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~18 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 18:12:30,898 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11805: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~18 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 18:12:30,898 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808: assume 16 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,899 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808: assume !(16 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,899 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808-1: assume 16 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,899 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808-1: assume !(16 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,899 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11809-1: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~18 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 18:12:30,900 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11809: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~18 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 18:12:30,900 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11812: copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_to_user_nocheck_~dst.base, __copy_to_user_nocheck_~dst.offset, __copy_to_user_nocheck_~src.base, __copy_to_user_nocheck_~src.offset, __copy_to_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~16;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~16;copy_user_generic_#res := copy_user_generic_~ret~16 % 4294967296; [2021-11-06 18:12:30,900 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11812-1: copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_to_user_nocheck_~dst.base, __copy_to_user_nocheck_~dst.offset, __copy_to_user_nocheck_~src.base, __copy_to_user_nocheck_~src.offset, __copy_to_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~16;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~16;copy_user_generic_#res := copy_user_generic_~ret~16 % 4294967296; [2021-11-06 18:12:30,900 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835-1: assume 0 != __copy_to_user_nocheck_~tmp___0~24;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 18:12:30,900 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835-1: assume !(0 != __copy_to_user_nocheck_~tmp___0~24);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 18:12:30,900 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835: assume 0 != __copy_to_user_nocheck_~tmp___0~24;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 18:12:30,901 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835: assume !(0 != __copy_to_user_nocheck_~tmp___0~24);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 18:12:30,901 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849-1: assume 0 != __copy_to_user_nocheck_~tmp___1~14;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 18:12:30,901 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849-1: assume !(0 != __copy_to_user_nocheck_~tmp___1~14);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 18:12:30,901 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849: assume 0 != __copy_to_user_nocheck_~tmp___1~14;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 18:12:30,901 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849: assume !(0 != __copy_to_user_nocheck_~tmp___1~14);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-06 18:12:30,902 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 18:12:30,902 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-06 18:12:30,903 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-06 18:12:30,904 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L20934-14: __copy_to_user_nocheck_#t~ret1206 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1206 && __copy_to_user_nocheck_#t~ret1206 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~14 := __copy_to_user_nocheck_#t~ret1206;havoc __copy_to_user_nocheck_#t~ret1206; [2021-11-06 18:12:30,904 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L20934-13: __copy_to_user_nocheck_#t~ret1205 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1205 && __copy_to_user_nocheck_#t~ret1205 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~24 := __copy_to_user_nocheck_#t~ret1205;havoc __copy_to_user_nocheck_#t~ret1205; [2021-11-06 18:12:30,904 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L20934-16: __copy_to_user_nocheck_#t~ret1205 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1205 && __copy_to_user_nocheck_#t~ret1205 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~24 := __copy_to_user_nocheck_#t~ret1205;havoc __copy_to_user_nocheck_#t~ret1205; [2021-11-06 18:12:30,904 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L20934-17: __copy_to_user_nocheck_#t~ret1206 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1206 && __copy_to_user_nocheck_#t~ret1206 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~14 := __copy_to_user_nocheck_#t~ret1206;havoc __copy_to_user_nocheck_#t~ret1206; [2021-11-06 18:12:30,905 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L20934-6: __copy_from_user_nocheck_#t~ret1201 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1201 && __copy_from_user_nocheck_#t~ret1201 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~13 := __copy_from_user_nocheck_#t~ret1201;havoc __copy_from_user_nocheck_#t~ret1201; [2021-11-06 18:12:30,906 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L20934-5: __copy_from_user_nocheck_#t~ret1200 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1200 && __copy_from_user_nocheck_#t~ret1200 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~23 := __copy_from_user_nocheck_#t~ret1200;havoc __copy_from_user_nocheck_#t~ret1200; [2021-11-06 18:12:30,908 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L20934-10: __copy_from_user_nocheck_#t~ret1201 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1201 && __copy_from_user_nocheck_#t~ret1201 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~13 := __copy_from_user_nocheck_#t~ret1201;havoc __copy_from_user_nocheck_#t~ret1201; [2021-11-06 18:12:30,908 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L20934-9: __copy_from_user_nocheck_#t~ret1200 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1200 && __copy_from_user_nocheck_#t~ret1200 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~23 := __copy_from_user_nocheck_#t~ret1200;havoc __copy_from_user_nocheck_#t~ret1200; [2021-11-06 18:12:30,908 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 18:12:30,909 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8333: assume !(1 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,909 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8332: assume 1 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,910 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8281: assume 1 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,911 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8282: assume !(1 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,911 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8179: assume !(1 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,911 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8178: assume 1 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,916 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8096: assume !(1 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-06 18:12:30,917 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8095: assume 1 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-06 18:12:30,950 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 18:12:30,950 INFO L299 CfgBuilder]: Removed 6735 assume(true) statements. [2021-11-06 18:12:30,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:12:30 BoogieIcfgContainer [2021-11-06 18:12:30,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 18:12:30,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 18:12:30,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 18:12:30,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 18:12:30,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:06:29" (1/3) ... [2021-11-06 18:12:30,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e492963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:12:30, skipping insertion in model container [2021-11-06 18:12:30,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:06:35" (2/3) ... [2021-11-06 18:12:30,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e492963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:12:30, skipping insertion in model container [2021-11-06 18:12:30,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:12:30" (3/3) ... [2021-11-06 18:12:30,967 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-06 18:12:30,970 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 18:12:30,970 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 88 error locations. [2021-11-06 18:12:31,028 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 18:12:31,032 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 18:12:31,032 INFO L340 AbstractCegarLoop]: Starting to check reachability of 88 error locations. [2021-11-06 18:12:31,121 INFO L276 IsEmpty]: Start isEmpty. Operand has 8627 states, 8539 states have (on average 1.4443143225202015) internal successors, (12333), 8626 states have internal predecessors, (12333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:12:31,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-06 18:12:31,134 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:12:31,134 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:12:31,135 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 85 more)] === [2021-11-06 18:12:31,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:12:31,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1385177132, now seen corresponding path program 1 times [2021-11-06 18:12:31,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:12:31,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833148958] [2021-11-06 18:12:31,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:12:31,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:12:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:12:32,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:12:32,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:12:32,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833148958] [2021-11-06 18:12:32,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833148958] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:12:32,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:12:32,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:12:32,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559621889] [2021-11-06 18:12:32,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:12:32,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:12:32,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:12:32,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:12:32,373 INFO L87 Difference]: Start difference. First operand has 8627 states, 8539 states have (on average 1.4443143225202015) internal successors, (12333), 8626 states have internal predecessors, (12333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:12:35,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:12:35,406 INFO L93 Difference]: Finished difference Result 25081 states and 35962 transitions. [2021-11-06 18:12:35,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:12:35,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-06 18:12:35,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:12:35,492 INFO L225 Difference]: With dead ends: 25081 [2021-11-06 18:12:35,492 INFO L226 Difference]: Without dead ends: 15988 [2021-11-06 18:12:35,518 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:12:35,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15988 states. [2021-11-06 18:12:35,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15988 to 15808. [2021-11-06 18:12:35,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15808 states, 15720 states have (on average 1.410559796437659) internal successors, (22174), 15807 states have internal predecessors, (22174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:12:35,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15808 states to 15808 states and 22174 transitions. [2021-11-06 18:12:35,920 INFO L78 Accepts]: Start accepts. Automaton has 15808 states and 22174 transitions. Word has length 116 [2021-11-06 18:12:35,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:12:35,922 INFO L470 AbstractCegarLoop]: Abstraction has 15808 states and 22174 transitions. [2021-11-06 18:12:35,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:12:35,923 INFO L276 IsEmpty]: Start isEmpty. Operand 15808 states and 22174 transitions. [2021-11-06 18:12:35,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-06 18:12:35,929 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:12:35,929 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:12:35,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 18:12:35,931 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr79ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 85 more)] === [2021-11-06 18:12:35,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:12:35,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1399360569, now seen corresponding path program 1 times [2021-11-06 18:12:35,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:12:35,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143083076] [2021-11-06 18:12:35,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:12:35,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:12:36,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:12:36,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:12:36,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:12:36,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143083076] [2021-11-06 18:12:36,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143083076] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:12:36,617 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:12:36,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:12:36,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406829936] [2021-11-06 18:12:36,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:12:36,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:12:36,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:12:36,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:12:36,619 INFO L87 Difference]: Start difference. First operand 15808 states and 22174 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:12:39,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:12:39,819 INFO L93 Difference]: Finished difference Result 45214 states and 63685 transitions. [2021-11-06 18:12:39,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:12:39,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2021-11-06 18:12:39,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:12:39,932 INFO L225 Difference]: With dead ends: 45214 [2021-11-06 18:12:39,932 INFO L226 Difference]: Without dead ends: 29658 [2021-11-06 18:12:39,970 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:12:40,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29658 states. [2021-11-06 18:12:40,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29658 to 29488. [2021-11-06 18:12:40,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29488 states, 29400 states have (on average 1.4177891156462585) internal successors, (41683), 29487 states have internal predecessors, (41683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:12:40,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29488 states to 29488 states and 41683 transitions. [2021-11-06 18:12:40,986 INFO L78 Accepts]: Start accepts. Automaton has 29488 states and 41683 transitions. Word has length 124 [2021-11-06 18:12:40,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:12:40,989 INFO L470 AbstractCegarLoop]: Abstraction has 29488 states and 41683 transitions. [2021-11-06 18:12:40,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:12:40,990 INFO L276 IsEmpty]: Start isEmpty. Operand 29488 states and 41683 transitions. [2021-11-06 18:12:40,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-06 18:12:40,997 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:12:40,997 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:12:40,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 18:12:40,997 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 85 more)] === [2021-11-06 18:12:40,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:12:40,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1768079499, now seen corresponding path program 1 times [2021-11-06 18:12:40,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:12:40,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442026259] [2021-11-06 18:12:40,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:12:40,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:12:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:12:41,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:12:41,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:12:41,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442026259] [2021-11-06 18:12:41,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442026259] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:12:41,661 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:12:41,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:12:41,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977397934] [2021-11-06 18:12:41,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:12:41,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:12:41,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:12:41,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:12:41,662 INFO L87 Difference]: Start difference. First operand 29488 states and 41683 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:12:44,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:12:44,885 INFO L93 Difference]: Finished difference Result 64324 states and 90689 transitions. [2021-11-06 18:12:44,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:12:44,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-11-06 18:12:44,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:12:44,974 INFO L225 Difference]: With dead ends: 64324 [2021-11-06 18:12:44,974 INFO L226 Difference]: Without dead ends: 35088 [2021-11-06 18:12:45,026 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:12:45,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35088 states. [2021-11-06 18:12:45,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35088 to 35044. [2021-11-06 18:12:45,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35044 states, 34956 states have (on average 1.407798375100126) internal successors, (49211), 35043 states have internal predecessors, (49211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:12:45,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35044 states to 35044 states and 49211 transitions. [2021-11-06 18:12:45,825 INFO L78 Accepts]: Start accepts. Automaton has 35044 states and 49211 transitions. Word has length 128 [2021-11-06 18:12:45,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:12:45,826 INFO L470 AbstractCegarLoop]: Abstraction has 35044 states and 49211 transitions. [2021-11-06 18:12:45,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:12:45,827 INFO L276 IsEmpty]: Start isEmpty. Operand 35044 states and 49211 transitions. [2021-11-06 18:12:45,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-06 18:12:45,832 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:12:45,832 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:12:45,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 18:12:45,833 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 85 more)] === [2021-11-06 18:12:45,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:12:45,833 INFO L85 PathProgramCache]: Analyzing trace with hash 335522577, now seen corresponding path program 1 times [2021-11-06 18:12:45,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:12:45,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867775348] [2021-11-06 18:12:45,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:12:45,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:12:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:12:46,588 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:12:46,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:12:46,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867775348] [2021-11-06 18:12:46,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867775348] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:12:46,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:12:46,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:12:46,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165445314] [2021-11-06 18:12:46,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:12:46,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:12:46,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:12:46,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:12:46,589 INFO L87 Difference]: Start difference. First operand 35044 states and 49211 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:12:49,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:12:49,931 INFO L93 Difference]: Finished difference Result 77510 states and 108939 transitions. [2021-11-06 18:12:49,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:12:49,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2021-11-06 18:12:49,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:12:50,024 INFO L225 Difference]: With dead ends: 77510 [2021-11-06 18:12:50,024 INFO L226 Difference]: Without dead ends: 42718 [2021-11-06 18:12:50,076 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:12:50,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42718 states. [2021-11-06 18:12:50,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42718 to 42562. [2021-11-06 18:12:50,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42562 states, 42474 states have (on average 1.4103922399585629) internal successors, (59905), 42561 states have internal predecessors, (59905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:12:51,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42562 states to 42562 states and 59905 transitions. [2021-11-06 18:12:51,018 INFO L78 Accepts]: Start accepts. Automaton has 42562 states and 59905 transitions. Word has length 137 [2021-11-06 18:12:51,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:12:51,019 INFO L470 AbstractCegarLoop]: Abstraction has 42562 states and 59905 transitions. [2021-11-06 18:12:51,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:12:51,019 INFO L276 IsEmpty]: Start isEmpty. Operand 42562 states and 59905 transitions. [2021-11-06 18:12:51,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-06 18:12:51,025 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:12:51,025 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:12:51,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 18:12:51,027 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 85 more)] === [2021-11-06 18:12:51,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:12:51,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1542030616, now seen corresponding path program 1 times [2021-11-06 18:12:51,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:12:51,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944197159] [2021-11-06 18:12:51,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:12:51,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:12:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:12:51,869 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:12:51,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:12:51,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944197159] [2021-11-06 18:12:51,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944197159] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:12:51,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:12:51,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:12:51,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281528665] [2021-11-06 18:12:51,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:12:51,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:12:51,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:12:51,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:12:51,871 INFO L87 Difference]: Start difference. First operand 42562 states and 59905 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:12:55,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:12:55,278 INFO L93 Difference]: Finished difference Result 112927 states and 158845 transitions. [2021-11-06 18:12:55,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:12:55,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2021-11-06 18:12:55,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:12:55,428 INFO L225 Difference]: With dead ends: 112927 [2021-11-06 18:12:55,429 INFO L226 Difference]: Without dead ends: 70617 [2021-11-06 18:12:55,504 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:12:55,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70617 states. [2021-11-06 18:12:56,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70617 to 70409. [2021-11-06 18:12:56,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70409 states, 70321 states have (on average 1.4089105672558695) internal successors, (99076), 70408 states have internal predecessors, (99076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:12:57,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70409 states to 70409 states and 99076 transitions. [2021-11-06 18:12:57,016 INFO L78 Accepts]: Start accepts. Automaton has 70409 states and 99076 transitions. Word has length 145 [2021-11-06 18:12:57,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:12:57,016 INFO L470 AbstractCegarLoop]: Abstraction has 70409 states and 99076 transitions. [2021-11-06 18:12:57,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:12:57,016 INFO L276 IsEmpty]: Start isEmpty. Operand 70409 states and 99076 transitions. [2021-11-06 18:12:57,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-06 18:12:57,024 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:12:57,025 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:12:57,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 18:12:57,025 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 85 more)] === [2021-11-06 18:12:57,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:12:57,025 INFO L85 PathProgramCache]: Analyzing trace with hash -874023518, now seen corresponding path program 1 times [2021-11-06 18:12:57,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:12:57,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617957155] [2021-11-06 18:12:57,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:12:57,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:12:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:12:57,631 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:12:57,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:12:57,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617957155] [2021-11-06 18:12:57,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617957155] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:12:57,632 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:12:57,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:12:57,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018622673] [2021-11-06 18:12:57,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:12:57,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:12:57,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:12:57,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:12:57,633 INFO L87 Difference]: Start difference. First operand 70409 states and 99076 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:13:02,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:13:02,426 INFO L93 Difference]: Finished difference Result 207665 states and 292844 transitions. [2021-11-06 18:13:02,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:13:02,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-11-06 18:13:02,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:13:02,734 INFO L225 Difference]: With dead ends: 207665 [2021-11-06 18:13:02,734 INFO L226 Difference]: Without dead ends: 138329 [2021-11-06 18:13:02,820 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:13:02,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138329 states. [2021-11-06 18:13:05,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138329 to 138153. [2021-11-06 18:13:05,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138153 states, 138065 states have (on average 1.4114800999529207) internal successors, (194876), 138152 states have internal predecessors, (194876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:13:05,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138153 states to 138153 states and 194876 transitions. [2021-11-06 18:13:05,543 INFO L78 Accepts]: Start accepts. Automaton has 138153 states and 194876 transitions. Word has length 188 [2021-11-06 18:13:05,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:13:05,543 INFO L470 AbstractCegarLoop]: Abstraction has 138153 states and 194876 transitions. [2021-11-06 18:13:05,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:13:05,543 INFO L276 IsEmpty]: Start isEmpty. Operand 138153 states and 194876 transitions. [2021-11-06 18:13:05,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-06 18:13:05,562 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:13:05,562 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:13:05,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 18:13:05,562 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 85 more)] === [2021-11-06 18:13:05,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:13:05,563 INFO L85 PathProgramCache]: Analyzing trace with hash -450376796, now seen corresponding path program 1 times [2021-11-06 18:13:05,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:13:05,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159467262] [2021-11-06 18:13:05,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:13:05,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:13:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:13:06,386 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:13:06,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:13:06,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159467262] [2021-11-06 18:13:06,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159467262] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:13:06,387 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:13:06,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:13:06,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060660467] [2021-11-06 18:13:06,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:13:06,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:13:06,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:13:06,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:13:06,388 INFO L87 Difference]: Start difference. First operand 138153 states and 194876 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:13:12,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:13:12,210 INFO L93 Difference]: Finished difference Result 343169 states and 484460 transitions. [2021-11-06 18:13:12,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:13:12,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-11-06 18:13:12,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:13:12,948 INFO L225 Difference]: With dead ends: 343169 [2021-11-06 18:13:12,949 INFO L226 Difference]: Without dead ends: 204838 [2021-11-06 18:13:13,104 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:13:13,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204838 states. [2021-11-06 18:13:16,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204838 to 204662. [2021-11-06 18:13:16,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204662 states, 204574 states have (on average 1.4130534672050212) internal successors, (289074), 204661 states have internal predecessors, (289074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:13:17,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204662 states to 204662 states and 289074 transitions. [2021-11-06 18:13:17,517 INFO L78 Accepts]: Start accepts. Automaton has 204662 states and 289074 transitions. Word has length 188 [2021-11-06 18:13:17,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:13:17,517 INFO L470 AbstractCegarLoop]: Abstraction has 204662 states and 289074 transitions. [2021-11-06 18:13:17,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:13:17,517 INFO L276 IsEmpty]: Start isEmpty. Operand 204662 states and 289074 transitions. [2021-11-06 18:13:17,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-06 18:13:17,530 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:13:17,531 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:13:17,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 18:13:17,531 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 85 more)] === [2021-11-06 18:13:17,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:13:17,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1527385567, now seen corresponding path program 1 times [2021-11-06 18:13:17,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:13:17,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063193873] [2021-11-06 18:13:17,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:13:17,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:13:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:13:18,153 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 18:13:18,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:13:18,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063193873] [2021-11-06 18:13:18,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063193873] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:13:18,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:13:18,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:13:18,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869735890] [2021-11-06 18:13:18,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:13:18,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:13:18,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:13:18,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:13:18,154 INFO L87 Difference]: Start difference. First operand 204662 states and 289074 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:13:24,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:13:24,870 INFO L93 Difference]: Finished difference Result 440048 states and 620187 transitions. [2021-11-06 18:13:24,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:13:24,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 199 [2021-11-06 18:13:24,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:13:25,400 INFO L225 Difference]: With dead ends: 440048 [2021-11-06 18:13:25,400 INFO L226 Difference]: Without dead ends: 236459 [2021-11-06 18:13:25,614 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:13:25,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236459 states.