/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/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-89f541c [2020-08-27 22:57:59,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-27 22:57:59,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-27 22:57:59,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-27 22:57:59,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-27 22:57:59,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-27 22:57:59,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-27 22:57:59,614 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-27 22:57:59,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-27 22:57:59,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-27 22:57:59,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-27 22:57:59,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-27 22:57:59,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-27 22:57:59,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-27 22:57:59,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-27 22:57:59,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-27 22:57:59,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-27 22:57:59,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-27 22:57:59,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-27 22:57:59,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-27 22:57:59,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-27 22:57:59,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-27 22:57:59,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-27 22:57:59,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-27 22:57:59,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-27 22:57:59,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-27 22:57:59,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-27 22:57:59,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-27 22:57:59,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-27 22:57:59,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-27 22:57:59,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-27 22:57:59,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-27 22:57:59,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-27 22:57:59,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-27 22:57:59,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-27 22:57:59,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-27 22:57:59,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-27 22:57:59,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-27 22:57:59,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-27 22:57:59,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-27 22:57:59,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-27 22:57:59,671 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-27 22:57:59,715 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-27 22:57:59,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-27 22:57:59,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-27 22:57:59,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-27 22:57:59,718 INFO L138 SettingsManager]: * Use SBE=true [2020-08-27 22:57:59,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-27 22:57:59,718 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-27 22:57:59,719 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-27 22:57:59,719 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-27 22:57:59,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-27 22:57:59,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-27 22:57:59,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-27 22:57:59,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-27 22:57:59,721 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-27 22:57:59,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-27 22:57:59,722 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-27 22:57:59,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-27 22:57:59,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-27 22:57:59,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-27 22:57:59,723 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-27 22:57:59,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-27 22:57:59,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-27 22:57:59,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-27 22:57:59,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-27 22:57:59,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-27 22:57:59,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-27 22:57:59,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-27 22:57:59,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-27 22:57:59,725 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-27 22:57:59,725 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> interpolation-heuristic=FIRST;log-additional-information=true; [2020-08-27 22:58:00,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-27 22:58:00,293 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-27 22:58:00,298 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-27 22:58:00,300 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-27 22:58:00,300 INFO L275 PluginConnector]: CDTParser initialized [2020-08-27 22:58:00,302 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-08-27 22:58:00,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b56dddcdb/19736bfcc571434e8841ac1d2f75b7d7/FLAG3ccd879c0 [2020-08-27 22:58:00,987 INFO L306 CDTParser]: Found 1 translation units. [2020-08-27 22:58:00,989 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-08-27 22:58:01,000 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b56dddcdb/19736bfcc571434e8841ac1d2f75b7d7/FLAG3ccd879c0 [2020-08-27 22:58:01,291 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b56dddcdb/19736bfcc571434e8841ac1d2f75b7d7 [2020-08-27 22:58:01,304 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-27 22:58:01,305 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-27 22:58:01,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-27 22:58:01,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-27 22:58:01,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-27 22:58:01,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:58:01" (1/1) ... [2020-08-27 22:58:01,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1aada5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:58:01, skipping insertion in model container [2020-08-27 22:58:01,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:58:01" (1/1) ... [2020-08-27 22:58:01,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-27 22:58:01,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-27 22:58:01,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 22:58:01,672 INFO L203 MainTranslator]: Completed pre-run [2020-08-27 22:58:01,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 22:58:01,842 INFO L208 MainTranslator]: Completed translation [2020-08-27 22:58:01,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:58:01 WrapperNode [2020-08-27 22:58:01,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-27 22:58:01,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-27 22:58:01,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-27 22:58:01,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-27 22:58:01,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:58:01" (1/1) ... [2020-08-27 22:58:01,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:58:01" (1/1) ... [2020-08-27 22:58:01,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:58:01" (1/1) ... [2020-08-27 22:58:01,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:58:01" (1/1) ... [2020-08-27 22:58:01,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:58:01" (1/1) ... [2020-08-27 22:58:01,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:58:01" (1/1) ... [2020-08-27 22:58:01,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:58:01" (1/1) ... [2020-08-27 22:58:01,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-27 22:58:01,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-27 22:58:01,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-27 22:58:01,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-27 22:58:01,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:58:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-27 22:58:02,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-27 22:58:02,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-27 22:58:02,001 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-08-27 22:58:02,001 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-08-27 22:58:02,002 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-08-27 22:58:02,002 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-27 22:58:02,002 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-08-27 22:58:02,002 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-08-27 22:58:02,002 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-08-27 22:58:02,003 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-08-27 22:58:02,003 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-08-27 22:58:02,003 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-08-27 22:58:02,003 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-08-27 22:58:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-27 22:58:02,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-08-27 22:58:02,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-27 22:58:02,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-08-27 22:58:02,004 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-08-27 22:58:02,004 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-08-27 22:58:02,005 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-08-27 22:58:02,005 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-08-27 22:58:02,005 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-08-27 22:58:02,005 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-08-27 22:58:02,006 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-08-27 22:58:02,006 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-08-27 22:58:02,006 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-08-27 22:58:02,006 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-27 22:58:02,006 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-08-27 22:58:02,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-27 22:58:02,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-27 22:58:02,268 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-08-27 22:58:02,382 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2020-08-27 22:58:02,382 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2020-08-27 22:58:02,384 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-08-27 22:58:02,429 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume false; [2020-08-27 22:58:02,430 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !false; [2020-08-27 22:58:02,447 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-08-27 22:58:02,477 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-08-27 22:58:02,477 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-08-27 22:58:02,497 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-08-27 22:58:02,725 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-08-27 22:58:02,725 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-08-27 22:58:02,756 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-27 22:58:02,756 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-27 22:58:02,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:58:02 BoogieIcfgContainer [2020-08-27 22:58:02,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-27 22:58:02,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-27 22:58:02,771 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-27 22:58:02,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-27 22:58:02,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 10:58:01" (1/3) ... [2020-08-27 22:58:02,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3604a56d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:58:02, skipping insertion in model container [2020-08-27 22:58:02,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:58:01" (2/3) ... [2020-08-27 22:58:02,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3604a56d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:58:02, skipping insertion in model container [2020-08-27 22:58:02,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:58:02" (3/3) ... [2020-08-27 22:58:02,783 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl1.cil.c [2020-08-27 22:58:02,796 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-27 22:58:02,819 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-27 22:58:02,842 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-27 22:58:02,873 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-27 22:58:02,873 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-27 22:58:02,873 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-27 22:58:02,873 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-27 22:58:02,873 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-27 22:58:02,874 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-27 22:58:02,874 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-27 22:58:02,874 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-27 22:58:02,903 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2020-08-27 22:58:02,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-27 22:58:02,913 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 22:58:02,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 22:58:02,915 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 22:58:02,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 22:58:02,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1530382191, now seen corresponding path program 1 times [2020-08-27 22:58:02,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 22:58:02,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [687210199] [2020-08-27 22:58:02,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 22:58:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:58:03,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-27 22:58:03,146 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Proof production must be enabled (you can do this via setOption). at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:211) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:170) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-08-27 22:58:03,155 INFO L168 Benchmark]: Toolchain (without parser) took 1847.03 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.3 MB in the beginning and 118.0 MB in the end (delta: -15.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 7.1 GB. [2020-08-27 22:58:03,156 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-27 22:58:03,157 INFO L168 Benchmark]: CACSL2BoogieTranslator took 537.24 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 179.8 MB in the end (delta: -77.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-08-27 22:58:03,158 INFO L168 Benchmark]: Boogie Preprocessor took 60.38 ms. Allocated memory is still 204.5 MB. Free memory was 179.8 MB in the beginning and 177.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-08-27 22:58:03,159 INFO L168 Benchmark]: RCFGBuilder took 863.30 ms. Allocated memory is still 204.5 MB. Free memory was 177.3 MB in the beginning and 132.3 MB in the end (delta: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2020-08-27 22:58:03,160 INFO L168 Benchmark]: TraceAbstraction took 380.01 ms. Allocated memory is still 204.5 MB. Free memory was 131.7 MB in the beginning and 118.0 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2020-08-27 22:58:03,165 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 537.24 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 179.8 MB in the end (delta: -77.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.38 ms. Allocated memory is still 204.5 MB. Free memory was 179.8 MB in the beginning and 177.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 863.30 ms. Allocated memory is still 204.5 MB. Free memory was 177.3 MB in the beginning and 132.3 MB in the end (delta: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 380.01 ms. Allocated memory is still 204.5 MB. Free memory was 131.7 MB in the beginning and 118.0 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Proof production must be enabled (you can do this via setOption). de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Proof production must be enabled (you can do this via setOption).: de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...