/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 01:36:12,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 01:36:12,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 01:36:12,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 01:36:12,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 01:36:12,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 01:36:12,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 01:36:12,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 01:36:12,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 01:36:12,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 01:36:12,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 01:36:12,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 01:36:12,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 01:36:12,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 01:36:12,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 01:36:12,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 01:36:12,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 01:36:12,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 01:36:12,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 01:36:12,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 01:36:12,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 01:36:12,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 01:36:12,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 01:36:12,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 01:36:12,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 01:36:12,956 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 01:36:12,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 01:36:12,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 01:36:12,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 01:36:12,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 01:36:12,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 01:36:12,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 01:36:12,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 01:36:12,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 01:36:12,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 01:36:12,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 01:36:12,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 01:36:12,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 01:36:12,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 01:36:12,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 01:36:12,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 01:36:12,976 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 01:36:12,997 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 01:36:12,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 01:36:12,999 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 01:36:12,999 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 01:36:13,001 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 01:36:13,001 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 01:36:13,001 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 01:36:13,002 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 01:36:13,002 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 01:36:13,002 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 01:36:13,003 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 01:36:13,003 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 01:36:13,004 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 01:36:13,004 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 01:36:13,004 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 01:36:13,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 01:36:13,005 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 01:36:13,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 01:36:13,005 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 01:36:13,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 01:36:13,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 01:36:13,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 01:36:13,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 01:36:13,006 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 01:36:13,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 01:36:13,006 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 01:36:13,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 01:36:13,007 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 01:36:13,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 01:36:13,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 01:36:13,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 01:36:13,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 01:36:13,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 01:36:13,008 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 01:36:13,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 01:36:13,008 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 01:36:13,009 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 01:36:13,009 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 01:36:13,259 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 01:36:13,277 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 01:36:13,280 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 01:36:13,280 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 01:36:13,281 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 01:36:13,281 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2019-11-24 01:36:13,345 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c3637e8f/9a2631463e664a7d8e2ba3fbe9579b02/FLAG9a7a6099f [2019-11-24 01:36:14,151 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 01:36:14,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2019-11-24 01:36:14,197 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c3637e8f/9a2631463e664a7d8e2ba3fbe9579b02/FLAG9a7a6099f [2019-11-24 01:36:14,646 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c3637e8f/9a2631463e664a7d8e2ba3fbe9579b02 [2019-11-24 01:36:14,655 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 01:36:14,657 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 01:36:14,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 01:36:14,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 01:36:14,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 01:36:14,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:36:14" (1/1) ... [2019-11-24 01:36:14,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ba8e463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:14, skipping insertion in model container [2019-11-24 01:36:14,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:36:14" (1/1) ... [2019-11-24 01:36:14,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 01:36:14,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 01:36:18,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 01:36:18,584 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 01:36:19,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 01:36:19,756 INFO L208 MainTranslator]: Completed translation [2019-11-24 01:36:19,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:19 WrapperNode [2019-11-24 01:36:19,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 01:36:19,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 01:36:19,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 01:36:19,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 01:36:19,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:19" (1/1) ... [2019-11-24 01:36:19,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:19" (1/1) ... [2019-11-24 01:36:20,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 01:36:20,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 01:36:20,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 01:36:20,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 01:36:20,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:19" (1/1) ... [2019-11-24 01:36:20,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:19" (1/1) ... [2019-11-24 01:36:20,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:19" (1/1) ... [2019-11-24 01:36:20,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:19" (1/1) ... [2019-11-24 01:36:20,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:19" (1/1) ... [2019-11-24 01:36:20,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:19" (1/1) ... [2019-11-24 01:36:20,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:19" (1/1) ... [2019-11-24 01:36:20,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 01:36:20,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 01:36:20,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 01:36:20,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 01:36:20,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 01:36:20,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 01:36:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-11-24 01:36:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-11-24 01:36:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 01:36:20,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-24 01:36:20,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-24 01:36:20,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 01:36:20,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 01:36:20,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-24 01:36:20,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-24 01:36:20,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 01:36:20,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-24 01:36:20,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-24 01:36:20,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 01:36:20,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 01:36:38,130 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2019-11-24 01:36:38,131 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2019-11-24 01:36:38,131 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2019-11-24 01:36:38,132 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2019-11-24 01:36:38,132 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2019-11-24 01:36:38,133 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2019-11-24 01:36:38,134 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2019-11-24 01:36:38,134 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2019-11-24 01:36:38,135 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2019-11-24 01:36:38,136 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2019-11-24 01:37:36,791 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 01:37:36,792 INFO L284 CfgBuilder]: Removed 2646 assume(true) statements. [2019-11-24 01:37:36,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:37:36 BoogieIcfgContainer [2019-11-24 01:37:36,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 01:37:36,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 01:37:36,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 01:37:36,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 01:37:36,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:36:14" (1/3) ... [2019-11-24 01:37:36,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346f8fd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:37:36, skipping insertion in model container [2019-11-24 01:37:36,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:36:19" (2/3) ... [2019-11-24 01:37:36,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346f8fd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:37:36, skipping insertion in model container [2019-11-24 01:37:36,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:37:36" (3/3) ... [2019-11-24 01:37:36,800 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2019-11-24 01:37:36,811 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 01:37:36,821 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 44 error locations. [2019-11-24 01:37:36,833 INFO L249 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2019-11-24 01:37:36,869 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 01:37:36,869 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 01:37:36,869 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 01:37:36,869 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 01:37:36,869 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 01:37:36,870 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 01:37:36,870 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 01:37:36,870 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 01:37:36,904 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states. [2019-11-24 01:37:36,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-24 01:37:36,914 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:37:36,915 INFO L410 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] [2019-11-24 01:37:36,916 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:37:36,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:37:36,922 INFO L82 PathProgramCache]: Analyzing trace with hash -401194178, now seen corresponding path program 1 times [2019-11-24 01:37:36,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:37:36,933 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150279800] [2019-11-24 01:37:36,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:37:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:37:37,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 01:37:37,561 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150279800] [2019-11-24 01:37:37,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:37:37,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 01:37:37,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739852645] [2019-11-24 01:37:37,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 01:37:37,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:37:37,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 01:37:37,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:37:37,586 INFO L87 Difference]: Start difference. First operand 758 states. Second operand 3 states. [2019-11-24 01:37:38,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 01:37:38,531 INFO L93 Difference]: Finished difference Result 1988 states and 3148 transitions. [2019-11-24 01:37:38,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 01:37:38,533 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-11-24 01:37:38,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 01:37:38,557 INFO L225 Difference]: With dead ends: 1988 [2019-11-24 01:37:38,558 INFO L226 Difference]: Without dead ends: 1079 [2019-11-24 01:37:38,566 INFO L630 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 [2019-11-24 01:37:38,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2019-11-24 01:37:38,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1063. [2019-11-24 01:37:38,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1063 states. [2019-11-24 01:37:38,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1570 transitions. [2019-11-24 01:37:38,692 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1570 transitions. Word has length 26 [2019-11-24 01:37:38,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 01:37:38,692 INFO L462 AbstractCegarLoop]: Abstraction has 1063 states and 1570 transitions. [2019-11-24 01:37:38,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 01:37:38,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1570 transitions. [2019-11-24 01:37:38,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-24 01:37:38,695 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:37:38,695 INFO L410 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] [2019-11-24 01:37:38,697 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:37:38,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:37:38,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1813846281, now seen corresponding path program 1 times [2019-11-24 01:37:38,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:37:38,698 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330473020] [2019-11-24 01:37:38,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:37:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:37:38,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 01:37:38,932 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330473020] [2019-11-24 01:37:38,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:37:38,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 01:37:38,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715863088] [2019-11-24 01:37:38,934 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 01:37:38,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:37:38,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 01:37:38,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:37:38,935 INFO L87 Difference]: Start difference. First operand 1063 states and 1570 transitions. Second operand 3 states.