/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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 18:09:30,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 18:09:30,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 18:09:30,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 18:09:30,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 18:09:30,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 18:09:30,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 18:09:30,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 18:09:30,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 18:09:30,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 18:09:30,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 18:09:30,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 18:09:30,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 18:09:30,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 18:09:30,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 18:09:30,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 18:09:30,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 18:09:30,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 18:09:30,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 18:09:30,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 18:09:30,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 18:09:30,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 18:09:30,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 18:09:30,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 18:09:30,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 18:09:30,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 18:09:30,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 18:09:30,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 18:09:30,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 18:09:30,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 18:09:30,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 18:09:30,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 18:09:30,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 18:09:30,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 18:09:30,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 18:09:30,380 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 18:09:30,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 18:09:30,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 18:09:30,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 18:09:30,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 18:09:30,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 18:09:30,383 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 [2020-08-21 18:09:30,424 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 18:09:30,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 18:09:30,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 18:09:30,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 18:09:30,430 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 18:09:30,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 18:09:30,430 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 18:09:30,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 18:09:30,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 18:09:30,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 18:09:30,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 18:09:30,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 18:09:30,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 18:09:30,431 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 18:09:30,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 18:09:30,432 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 18:09:30,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 18:09:30,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 18:09:30,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 18:09:30,432 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 18:09:30,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 18:09:30,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 18:09:30,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 18:09:30,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 18:09:30,433 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 18:09:30,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 18:09:30,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 18:09:30,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 18:09:30,434 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 18:09:30,434 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 -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-08-21 18:09:30,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 18:09:30,765 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 18:09:30,769 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 18:09:30,770 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 18:09:30,771 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 18:09:30,771 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-08-21 18:09:30,837 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a78c0e3b7/93084154e516453ca4c6aa2847179678/FLAG2c33a096a [2020-08-21 18:09:31,287 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 18:09:31,288 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-08-21 18:09:31,295 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a78c0e3b7/93084154e516453ca4c6aa2847179678/FLAG2c33a096a [2020-08-21 18:09:31,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a78c0e3b7/93084154e516453ca4c6aa2847179678 [2020-08-21 18:09:31,713 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 18:09:31,715 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 18:09:31,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 18:09:31,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 18:09:31,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 18:09:31,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:09:31" (1/1) ... [2020-08-21 18:09:31,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7710b512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:31, skipping insertion in model container [2020-08-21 18:09:31,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:09:31" (1/1) ... [2020-08-21 18:09:31,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 18:09:31,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 18:09:31,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:09:31,972 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 18:09:31,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:09:32,123 INFO L208 MainTranslator]: Completed translation [2020-08-21 18:09:32,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:32 WrapperNode [2020-08-21 18:09:32,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 18:09:32,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 18:09:32,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 18:09:32,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 18:09:32,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:32" (1/1) ... [2020-08-21 18:09:32,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:32" (1/1) ... [2020-08-21 18:09:32,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:32" (1/1) ... [2020-08-21 18:09:32,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:32" (1/1) ... [2020-08-21 18:09:32,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:32" (1/1) ... [2020-08-21 18:09:32,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:32" (1/1) ... [2020-08-21 18:09:32,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:32" (1/1) ... [2020-08-21 18:09:32,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 18:09:32,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 18:09:32,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 18:09:32,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 18:09:32,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:32" (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 [2020-08-21 18:09:32,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 18:09:32,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 18:09:32,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-08-21 18:09:32,291 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-08-21 18:09:32,291 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-21 18:09:32,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2020-08-21 18:09:32,292 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2020-08-21 18:09:32,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2020-08-21 18:09:32,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2020-08-21 18:09:32,293 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 18:09:32,293 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-21 18:09:32,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 18:09:32,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 18:09:32,294 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-08-21 18:09:32,295 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-21 18:09:32,295 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-08-21 18:09:32,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 18:09:32,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-21 18:09:32,296 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-21 18:09:32,296 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2020-08-21 18:09:32,296 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2020-08-21 18:09:32,296 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2020-08-21 18:09:32,297 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2020-08-21 18:09:32,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 18:09:32,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 18:09:32,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 18:09:32,300 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 18:09:32,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 18:09:32,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 18:09:32,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 18:09:32,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 18:09:32,737 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 18:09:32,737 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-21 18:09:32,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:09:32 BoogieIcfgContainer [2020-08-21 18:09:32,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 18:09:32,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 18:09:32,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 18:09:32,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 18:09:32,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 06:09:31" (1/3) ... [2020-08-21 18:09:32,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de2d5ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:09:32, skipping insertion in model container [2020-08-21 18:09:32,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:32" (2/3) ... [2020-08-21 18:09:32,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de2d5ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:09:32, skipping insertion in model container [2020-08-21 18:09:32,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:09:32" (3/3) ... [2020-08-21 18:09:32,751 INFO L109 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast_2.i [2020-08-21 18:09:32,762 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 18:09:32,770 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 18:09:32,784 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 18:09:32,808 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 18:09:32,808 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 18:09:32,808 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 18:09:32,808 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 18:09:32,809 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 18:09:32,809 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 18:09:32,809 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 18:09:32,809 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 18:09:32,828 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2020-08-21 18:09:32,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-21 18:09:32,835 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:09:32,836 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, 1, 1, 1, 1, 1, 1] [2020-08-21 18:09:32,837 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:09:32,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:09:32,844 INFO L82 PathProgramCache]: Analyzing trace with hash 502124135, now seen corresponding path program 1 times [2020-08-21 18:09:32,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:09:32,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [542035467] [2020-08-21 18:09:32,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:09:32,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:33,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:09:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:33,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 18:09:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:33,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:09:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:33,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:09:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:33,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 18:09:33,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [542035467] [2020-08-21 18:09:33,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:09:33,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-21 18:09:33,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513172254] [2020-08-21 18:09:33,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 18:09:33,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:09:33,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 18:09:33,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-08-21 18:09:33,370 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 10 states. [2020-08-21 18:09:33,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:09:33,889 INFO L93 Difference]: Finished difference Result 81 states and 93 transitions. [2020-08-21 18:09:33,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-21 18:09:33,890 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-08-21 18:09:33,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:09:33,902 INFO L225 Difference]: With dead ends: 81 [2020-08-21 18:09:33,902 INFO L226 Difference]: Without dead ends: 62 [2020-08-21 18:09:33,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-08-21 18:09:33,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-08-21 18:09:33,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2020-08-21 18:09:33,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-08-21 18:09:33,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2020-08-21 18:09:33,963 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 26 [2020-08-21 18:09:33,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:09:33,965 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2020-08-21 18:09:33,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 18:09:33,965 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2020-08-21 18:09:33,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-08-21 18:09:33,968 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:09:33,968 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-21 18:09:33,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 18:09:33,968 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:09:33,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:09:33,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1817820821, now seen corresponding path program 1 times [2020-08-21 18:09:33,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:09:33,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [788402263] [2020-08-21 18:09:33,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:09:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:34,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:09:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:34,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 18:09:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:34,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:09:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:34,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:09:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:34,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:09:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:34,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:09:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:34,211 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 18:09:34,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [788402263] [2020-08-21 18:09:34,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:09:34,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-21 18:09:34,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191193980] [2020-08-21 18:09:34,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 18:09:34,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:09:34,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 18:09:34,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-08-21 18:09:34,216 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand 10 states. [2020-08-21 18:09:34,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:09:34,767 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2020-08-21 18:09:34,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-21 18:09:34,768 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2020-08-21 18:09:34,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:09:34,770 INFO L225 Difference]: With dead ends: 79 [2020-08-21 18:09:34,770 INFO L226 Difference]: Without dead ends: 70 [2020-08-21 18:09:34,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2020-08-21 18:09:34,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-08-21 18:09:34,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2020-08-21 18:09:34,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-08-21 18:09:34,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2020-08-21 18:09:34,786 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 37 [2020-08-21 18:09:34,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:09:34,787 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2020-08-21 18:09:34,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 18:09:34,787 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2020-08-21 18:09:34,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-21 18:09:34,789 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:09:34,789 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-21 18:09:34,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 18:09:34,790 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:09:34,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:09:34,790 INFO L82 PathProgramCache]: Analyzing trace with hash -759518161, now seen corresponding path program 1 times [2020-08-21 18:09:34,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:09:34,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [878019632] [2020-08-21 18:09:34,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:09:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:34,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:09:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:34,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 18:09:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:34,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:09:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:34,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:09:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:34,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:09:34,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:34,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:09:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:34,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 18:09:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:35,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-21 18:09:35,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:35,015 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-08-21 18:09:35,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [878019632] [2020-08-21 18:09:35,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:09:35,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 18:09:35,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210939997] [2020-08-21 18:09:35,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 18:09:35,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:09:35,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 18:09:35,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-08-21 18:09:35,018 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand 8 states. [2020-08-21 18:09:35,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:09:35,400 INFO L93 Difference]: Finished difference Result 80 states and 84 transitions. [2020-08-21 18:09:35,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-21 18:09:35,401 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-21 18:09:35,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:09:35,404 INFO L225 Difference]: With dead ends: 80 [2020-08-21 18:09:35,404 INFO L226 Difference]: Without dead ends: 68 [2020-08-21 18:09:35,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-08-21 18:09:35,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-08-21 18:09:35,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-08-21 18:09:35,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-08-21 18:09:35,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2020-08-21 18:09:35,429 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 51 [2020-08-21 18:09:35,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:09:35,430 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2020-08-21 18:09:35,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 18:09:35,430 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2020-08-21 18:09:35,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-21 18:09:35,435 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:09:35,435 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-21 18:09:35,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 18:09:35,435 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:09:35,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:09:35,438 INFO L82 PathProgramCache]: Analyzing trace with hash -501352723, now seen corresponding path program 1 times [2020-08-21 18:09:35,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:09:35,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969648916] [2020-08-21 18:09:35,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:09:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 18:09:35,487 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 18:09:35,487 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 18:09:35,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 18:09:35,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 06:09:35 BoogieIcfgContainer [2020-08-21 18:09:35,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 18:09:35,517 INFO L168 Benchmark]: Toolchain (without parser) took 3802.00 ms. Allocated memory was 148.4 MB in the beginning and 242.7 MB in the end (delta: 94.4 MB). Free memory was 102.7 MB in the beginning and 108.2 MB in the end (delta: -5.5 MB). Peak memory consumption was 88.9 MB. Max. memory is 7.1 GB. [2020-08-21 18:09:35,519 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 148.4 MB. Free memory was 121.6 MB in the beginning and 121.2 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-08-21 18:09:35,520 INFO L168 Benchmark]: CACSL2BoogieTranslator took 408.95 ms. Allocated memory was 148.4 MB in the beginning and 205.5 MB in the end (delta: 57.1 MB). Free memory was 102.7 MB in the beginning and 182.9 MB in the end (delta: -80.2 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-08-21 18:09:35,522 INFO L168 Benchmark]: Boogie Preprocessor took 85.95 ms. Allocated memory is still 205.5 MB. Free memory was 182.9 MB in the beginning and 180.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-08-21 18:09:35,528 INFO L168 Benchmark]: RCFGBuilder took 531.07 ms. Allocated memory is still 205.5 MB. Free memory was 180.7 MB in the beginning and 157.4 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-08-21 18:09:35,529 INFO L168 Benchmark]: TraceAbstraction took 2770.96 ms. Allocated memory was 205.5 MB in the beginning and 242.7 MB in the end (delta: 37.2 MB). Free memory was 156.5 MB in the beginning and 108.2 MB in the end (delta: 48.3 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. [2020-08-21 18:09:35,542 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 148.4 MB. Free memory was 121.6 MB in the beginning and 121.2 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 408.95 ms. Allocated memory was 148.4 MB in the beginning and 205.5 MB in the end (delta: 57.1 MB). Free memory was 102.7 MB in the beginning and 182.9 MB in the end (delta: -80.2 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.95 ms. Allocated memory is still 205.5 MB. Free memory was 182.9 MB in the beginning and 180.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 531.07 ms. Allocated memory is still 205.5 MB. Free memory was 180.7 MB in the beginning and 157.4 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2770.96 ms. Allocated memory was 205.5 MB in the beginning and 242.7 MB in the end (delta: 37.2 MB). Free memory was 156.5 MB in the beginning and 108.2 MB in the end (delta: 48.3 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] struct slot *tmp_slot; [L41] int used_tmp_slot = 0; [L42] int freed_tmp_slot = 1; [L136] CALL ebda_rsrc_controller() [L73] struct hotplug_slot *hp_slot_ptr; [L75] struct bus_info *bus_info_ptr1; [L76] int rc; [L78] CALL, EXPR kzalloc(sizeof(*hp_slot_ptr), 1) [L47] EXPR, FCALL calloc(1, size) [L47] return calloc(1, size); [L78] RET, EXPR kzalloc(sizeof(*hp_slot_ptr), 1) [L78] hp_slot_ptr = kzalloc(sizeof(*hp_slot_ptr), 1) [L79] COND FALSE !(!hp_slot_ptr) [L83] hp_slot_ptr->b = 5 [L85] CALL, EXPR kzalloc(sizeof(*tmp_slot), 1) [L47] EXPR, FCALL calloc(1, size) [L47] return calloc(1, size); [L85] RET, EXPR kzalloc(sizeof(*tmp_slot), 1) [L85] tmp_slot = kzalloc(sizeof(*tmp_slot), 1) [L87] COND FALSE !(!tmp_slot) [L92] used_tmp_slot = 0 [L93] freed_tmp_slot = 0 [L95] tmp_slot->a = 2 [L96] tmp_slot->b = 3 [L98] CALL, EXPR ibmphp_find_same_bus_num() [L56] COND TRUE __VERIFIER_nondet_int() [L57] return 0; [L98] RET, EXPR ibmphp_find_same_bus_num() [L98] bus_info_ptr1 = ibmphp_find_same_bus_num() [L99] COND TRUE !bus_info_ptr1 [L100] rc = -3 [L127] EXPR hp_slot_ptr->private [L127] CALL kfree(hp_slot_ptr->private) [L50] COND FALSE !(p!=0 && p==tmp_slot) [L127] RET kfree(hp_slot_ptr->private) [L132] return rc; [L136] RET ebda_rsrc_controller() [L137] COND TRUE !used_tmp_slot [L138] (freed_tmp_slot) ? (0) : __blast_assert () [L138] CALL __blast_assert () [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 174 SDtfs, 208 SDslu, 436 SDs, 0 SdLazy, 521 SolverSat, 144 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 15684 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 16/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...