/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=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST -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 0.1.25-5644d1e-m [2020-08-18 22:44:10,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 22:44:10,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 22:44:10,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 22:44:10,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 22:44:10,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 22:44:10,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 22:44:10,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 22:44:10,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 22:44:10,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 22:44:10,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 22:44:10,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 22:44:10,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 22:44:10,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 22:44:10,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 22:44:10,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 22:44:10,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 22:44:10,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 22:44:10,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 22:44:10,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 22:44:10,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 22:44:10,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 22:44:10,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 22:44:10,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 22:44:10,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 22:44:10,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 22:44:10,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 22:44:10,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 22:44:10,444 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 [2020-08-18 22:44:10,490 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 22:44:10,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 22:44:10,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 22:44:10,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 22:44:10,492 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 22:44:10,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 22:44:10,492 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 22:44:10,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 22:44:10,493 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 22:44:10,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 22:44:10,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 22:44:10,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 22:44:10,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 22:44:10,494 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 22:44:10,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 22:44:10,495 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 22:44:10,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 22:44:10,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 22:44:10,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 22:44:10,496 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 22:44:10,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 22:44:10,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 22:44:10,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 22:44:10,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 22:44:10,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 22:44:10,499 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 22:44:10,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 22:44:10,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 22:44:10,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 22:44:10,499 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=5;interpolation-heuristic=WIDEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDEST; [2020-08-18 22:44:10,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 22:44:10,845 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 22:44:10,849 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 22:44:10,850 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 22:44:10,851 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 22:44:10,852 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-08-18 22:44:10,922 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b1e8bc14a/400deebf936c45b6b1f7fe1d8e644895/FLAG482f3b863 [2020-08-18 22:44:11,377 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 22:44:11,378 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-08-18 22:44:11,384 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b1e8bc14a/400deebf936c45b6b1f7fe1d8e644895/FLAG482f3b863 [2020-08-18 22:44:11,746 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b1e8bc14a/400deebf936c45b6b1f7fe1d8e644895 [2020-08-18 22:44:11,760 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 22:44:11,762 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 22:44:11,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 22:44:11,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 22:44:11,766 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 22:44:11,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:44:11" (1/1) ... [2020-08-18 22:44:11,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60e3170a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:11, skipping insertion in model container [2020-08-18 22:44:11,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:44:11" (1/1) ... [2020-08-18 22:44:11,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 22:44:11,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 22:44:12,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 22:44:12,062 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 22:44:12,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 22:44:12,111 INFO L208 MainTranslator]: Completed translation [2020-08-18 22:44:12,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:12 WrapperNode [2020-08-18 22:44:12,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 22:44:12,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 22:44:12,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 22:44:12,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 22:44:12,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:12" (1/1) ... [2020-08-18 22:44:12,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:12" (1/1) ... [2020-08-18 22:44:12,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:12" (1/1) ... [2020-08-18 22:44:12,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:12" (1/1) ... [2020-08-18 22:44:12,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:12" (1/1) ... [2020-08-18 22:44:12,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:12" (1/1) ... [2020-08-18 22:44:12,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:12" (1/1) ... [2020-08-18 22:44:12,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 22:44:12,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 22:44:12,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 22:44:12,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 22:44:12,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:12" (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 [2020-08-18 22:44:12,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 22:44:12,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 22:44:12,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-08-18 22:44:12,308 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-08-18 22:44:12,308 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-18 22:44:12,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2020-08-18 22:44:12,308 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2020-08-18 22:44:12,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2020-08-18 22:44:12,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2020-08-18 22:44:12,309 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 22:44:12,309 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-18 22:44:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 22:44:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 22:44:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-08-18 22:44:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-18 22:44:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-08-18 22:44:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 22:44:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-18 22:44:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-18 22:44:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2020-08-18 22:44:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2020-08-18 22:44:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2020-08-18 22:44:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2020-08-18 22:44:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 22:44:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 22:44:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 22:44:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 22:44:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 22:44:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 22:44:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 22:44:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 22:44:12,690 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 22:44:12,690 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-18 22:44:12,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:44:12 BoogieIcfgContainer [2020-08-18 22:44:12,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 22:44:12,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 22:44:12,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 22:44:12,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 22:44:12,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 10:44:11" (1/3) ... [2020-08-18 22:44:12,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6733de6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:44:12, skipping insertion in model container [2020-08-18 22:44:12,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:44:12" (2/3) ... [2020-08-18 22:44:12,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6733de6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:44:12, skipping insertion in model container [2020-08-18 22:44:12,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:44:12" (3/3) ... [2020-08-18 22:44:12,703 INFO L109 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast_2.i [2020-08-18 22:44:12,714 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 22:44:12,721 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 22:44:12,735 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 22:44:12,760 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 22:44:12,760 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 22:44:12,761 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 22:44:12,761 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 22:44:12,761 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 22:44:12,761 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 22:44:12,761 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 22:44:12,762 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 22:44:12,782 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2020-08-18 22:44:12,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-18 22:44:12,790 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:44:12,791 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] [2020-08-18 22:44:12,791 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:44:12,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:44:12,798 INFO L82 PathProgramCache]: Analyzing trace with hash 502124135, now seen corresponding path program 1 times [2020-08-18 22:44:12,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:44:12,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1006151592] [2020-08-18 22:44:12,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:44:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:13,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:44:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:13,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 22:44:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:13,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:44:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:13,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:44:13,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:13,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 22:44:13,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1006151592] [2020-08-18 22:44:13,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:44:13,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 22:44:13,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885009817] [2020-08-18 22:44:13,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 22:44:13,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:44:13,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 22:44:13,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-08-18 22:44:13,406 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 10 states. [2020-08-18 22:44:13,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:44:13,920 INFO L93 Difference]: Finished difference Result 81 states and 93 transitions. [2020-08-18 22:44:13,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 22:44:13,922 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-08-18 22:44:13,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:44:13,934 INFO L225 Difference]: With dead ends: 81 [2020-08-18 22:44:13,934 INFO L226 Difference]: Without dead ends: 62 [2020-08-18 22:44:13,938 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 [2020-08-18 22:44:13,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-08-18 22:44:13,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2020-08-18 22:44:13,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-08-18 22:44:13,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2020-08-18 22:44:13,988 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 26 [2020-08-18 22:44:13,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:44:13,990 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2020-08-18 22:44:13,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 22:44:13,991 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2020-08-18 22:44:13,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-08-18 22:44:13,993 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:44:13,993 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] [2020-08-18 22:44:13,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 22:44:13,994 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:44:13,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:44:13,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1817820821, now seen corresponding path program 1 times [2020-08-18 22:44:13,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:44:13,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [625285506] [2020-08-18 22:44:13,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:44:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:14,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:44:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:14,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 22:44:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:14,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:44:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:14,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:44:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:14,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 22:44:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:14,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:44:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:14,351 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-18 22:44:14,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [625285506] [2020-08-18 22:44:14,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:44:14,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 22:44:14,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939088542] [2020-08-18 22:44:14,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 22:44:14,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:44:14,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 22:44:14,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-08-18 22:44:14,361 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand 10 states. [2020-08-18 22:44:14,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:44:14,940 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2020-08-18 22:44:14,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 22:44:14,941 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2020-08-18 22:44:14,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:44:14,944 INFO L225 Difference]: With dead ends: 79 [2020-08-18 22:44:14,944 INFO L226 Difference]: Without dead ends: 70 [2020-08-18 22:44:14,945 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2020-08-18 22:44:14,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-08-18 22:44:14,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2020-08-18 22:44:14,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-08-18 22:44:14,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2020-08-18 22:44:14,960 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 37 [2020-08-18 22:44:14,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:44:14,961 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2020-08-18 22:44:14,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 22:44:14,961 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2020-08-18 22:44:14,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-18 22:44:14,964 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:44:14,964 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] [2020-08-18 22:44:14,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 22:44:14,965 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:44:14,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:44:14,965 INFO L82 PathProgramCache]: Analyzing trace with hash -759518161, now seen corresponding path program 1 times [2020-08-18 22:44:14,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:44:14,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417909450] [2020-08-18 22:44:14,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:44:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:15,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:44:15,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:15,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 22:44:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:15,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:44:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:15,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:44:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:15,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 22:44:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:15,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:44:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:15,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 22:44:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:15,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 22:44:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:44:15,206 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-08-18 22:44:15,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417909450] [2020-08-18 22:44:15,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:44:15,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 22:44:15,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333727009] [2020-08-18 22:44:15,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 22:44:15,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:44:15,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 22:44:15,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-08-18 22:44:15,211 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand 8 states. [2020-08-18 22:44:15,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:44:15,611 INFO L93 Difference]: Finished difference Result 80 states and 84 transitions. [2020-08-18 22:44:15,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 22:44:15,613 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-18 22:44:15,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:44:15,616 INFO L225 Difference]: With dead ends: 80 [2020-08-18 22:44:15,617 INFO L226 Difference]: Without dead ends: 68 [2020-08-18 22:44:15,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-08-18 22:44:15,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-08-18 22:44:15,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-08-18 22:44:15,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-08-18 22:44:15,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2020-08-18 22:44:15,638 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 51 [2020-08-18 22:44:15,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:44:15,639 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2020-08-18 22:44:15,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 22:44:15,639 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2020-08-18 22:44:15,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-18 22:44:15,640 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:44:15,641 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] [2020-08-18 22:44:15,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 22:44:15,643 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:44:15,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:44:15,643 INFO L82 PathProgramCache]: Analyzing trace with hash -501352723, now seen corresponding path program 1 times [2020-08-18 22:44:15,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:44:15,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1046695426] [2020-08-18 22:44:15,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:44:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 22:44:15,702 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 22:44:15,703 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 22:44:15,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 22:44:15,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 10:44:15 BoogieIcfgContainer [2020-08-18 22:44:15,733 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 22:44:15,736 INFO L168 Benchmark]: Toolchain (without parser) took 3973.15 ms. Allocated memory was 143.1 MB in the beginning and 241.2 MB in the end (delta: 98.0 MB). Free memory was 106.5 MB in the beginning and 100.1 MB in the end (delta: 6.4 MB). Peak memory consumption was 104.4 MB. Max. memory is 7.1 GB. [2020-08-18 22:44:15,737 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 143.1 MB. Free memory was 124.7 MB in the beginning and 124.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 22:44:15,739 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.57 ms. Allocated memory is still 143.1 MB. Free memory was 106.3 MB in the beginning and 94.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-08-18 22:44:15,742 INFO L168 Benchmark]: Boogie Preprocessor took 134.03 ms. Allocated memory was 143.1 MB in the beginning and 206.0 MB in the end (delta: 62.9 MB). Free memory was 94.8 MB in the beginning and 182.9 MB in the end (delta: -88.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-08-18 22:44:15,748 INFO L168 Benchmark]: RCFGBuilder took 447.73 ms. Allocated memory is still 206.0 MB. Free memory was 182.9 MB in the beginning and 159.1 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-08-18 22:44:15,748 INFO L168 Benchmark]: TraceAbstraction took 3037.28 ms. Allocated memory was 206.0 MB in the beginning and 241.2 MB in the end (delta: 35.1 MB). Free memory was 158.5 MB in the beginning and 100.1 MB in the end (delta: 58.4 MB). Peak memory consumption was 93.5 MB. Max. memory is 7.1 GB. [2020-08-18 22:44:15,760 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 143.1 MB. Free memory was 124.7 MB in the beginning and 124.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 349.57 ms. Allocated memory is still 143.1 MB. Free memory was 106.3 MB in the beginning and 94.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.03 ms. Allocated memory was 143.1 MB in the beginning and 206.0 MB in the end (delta: 62.9 MB). Free memory was 94.8 MB in the beginning and 182.9 MB in the end (delta: -88.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 447.73 ms. Allocated memory is still 206.0 MB. Free memory was 182.9 MB in the beginning and 159.1 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3037.28 ms. Allocated memory was 206.0 MB in the beginning and 241.2 MB in the end (delta: 35.1 MB). Free memory was 158.5 MB in the beginning and 100.1 MB in the end (delta: 58.4 MB). Peak memory consumption was 93.5 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: 2.9s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.5s, 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, 0.9s 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...