/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 CAMEL_NO_AM -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 0.1.25-79ed534 [2020-07-19 21:30:49,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 21:30:49,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 21:30:49,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 21:30:49,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 21:30:49,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 21:30:49,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 21:30:49,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 21:30:49,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 21:30:49,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 21:30:49,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 21:30:49,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 21:30:49,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 21:30:49,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 21:30:49,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 21:30:49,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 21:30:49,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 21:30:49,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 21:30:49,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 21:30:49,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 21:30:49,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 21:30:49,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 21:30:49,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 21:30:49,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 21:30:49,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-19 21:30:49,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 21:30:49,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 21:30:49,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 21:30:49,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 21:30:49,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 21:30:49,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 21:30:49,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 21:30:49,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 21:30:49,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 21:30:49,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 21:30:49,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 21:30:49,475 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-19 21:30:49,490 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 21:30:49,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 21:30:49,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 21:30:49,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 21:30:49,493 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 21:30:49,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 21:30:49,493 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 21:30:49,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 21:30:49,493 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 21:30:49,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 21:30:49,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 21:30:49,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 21:30:49,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 21:30:49,494 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 21:30:49,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 21:30:49,495 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 21:30:49,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 21:30:49,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 21:30:49,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 21:30:49,496 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 21:30:49,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 21:30:49,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 21:30:49,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 21:30:49,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 21:30:49,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 21:30:49,497 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 21:30:49,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 21:30:49,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 21:30:49,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 21:30:49,498 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_NO_AM [2020-07-19 21:30:49,775 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 21:30:49,789 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 21:30:49,793 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 21:30:49,794 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 21:30:49,795 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 21:30:49,796 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-07-19 21:30:49,878 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/503523eb8/30e0979b5a2549ab8944e8713f2725d4/FLAGdba0aaf56 [2020-07-19 21:30:50,414 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 21:30:50,415 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-07-19 21:30:50,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/503523eb8/30e0979b5a2549ab8944e8713f2725d4/FLAGdba0aaf56 [2020-07-19 21:30:50,831 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/503523eb8/30e0979b5a2549ab8944e8713f2725d4 [2020-07-19 21:30:50,843 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 21:30:50,846 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 21:30:50,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 21:30:50,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 21:30:50,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 21:30:50,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:30:50" (1/1) ... [2020-07-19 21:30:50,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d2c1fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:30:50, skipping insertion in model container [2020-07-19 21:30:50,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:30:50" (1/1) ... [2020-07-19 21:30:50,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 21:30:50,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 21:30:51,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:30:51,101 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 21:30:51,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:30:51,236 INFO L208 MainTranslator]: Completed translation [2020-07-19 21:30:51,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:30:51 WrapperNode [2020-07-19 21:30:51,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 21:30:51,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 21:30:51,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 21:30:51,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 21:30:51,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:30:51" (1/1) ... [2020-07-19 21:30:51,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:30:51" (1/1) ... [2020-07-19 21:30:51,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:30:51" (1/1) ... [2020-07-19 21:30:51,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:30:51" (1/1) ... [2020-07-19 21:30:51,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:30:51" (1/1) ... [2020-07-19 21:30:51,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:30:51" (1/1) ... [2020-07-19 21:30:51,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:30:51" (1/1) ... [2020-07-19 21:30:51,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 21:30:51,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 21:30:51,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 21:30:51,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 21:30:51,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:30:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 21:30:51,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 21:30:51,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 21:30:51,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-19 21:30:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-07-19 21:30:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-07-19 21:30:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2020-07-19 21:30:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2020-07-19 21:30:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2020-07-19 21:30:51,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2020-07-19 21:30:51,355 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 21:30:51,355 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-07-19 21:30:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 21:30:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 21:30:51,355 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-19 21:30:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-19 21:30:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-07-19 21:30:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 21:30:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-07-19 21:30:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-07-19 21:30:51,356 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2020-07-19 21:30:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2020-07-19 21:30:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2020-07-19 21:30:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2020-07-19 21:30:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 21:30:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 21:30:51,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 21:30:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 21:30:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 21:30:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 21:30:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 21:30:51,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 21:30:51,781 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 21:30:51,781 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-19 21:30:51,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:30:51 BoogieIcfgContainer [2020-07-19 21:30:51,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 21:30:51,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 21:30:51,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 21:30:51,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 21:30:51,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:30:50" (1/3) ... [2020-07-19 21:30:51,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a74a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:30:51, skipping insertion in model container [2020-07-19 21:30:51,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:30:51" (2/3) ... [2020-07-19 21:30:51,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a74a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:30:51, skipping insertion in model container [2020-07-19 21:30:51,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:30:51" (3/3) ... [2020-07-19 21:30:51,796 INFO L109 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast_2.i [2020-07-19 21:30:51,807 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 21:30:51,815 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 21:30:51,830 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 21:30:51,851 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 21:30:51,852 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 21:30:51,852 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 21:30:51,852 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 21:30:51,852 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 21:30:51,852 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 21:30:51,853 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 21:30:51,853 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 21:30:51,872 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2020-07-19 21:30:51,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-19 21:30:51,880 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:30:51,881 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] [2020-07-19 21:30:51,882 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:30:51,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:30:51,888 INFO L82 PathProgramCache]: Analyzing trace with hash 502124135, now seen corresponding path program 1 times [2020-07-19 21:30:51,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:30:51,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792530590] [2020-07-19 21:30:51,897 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4d74abab [2020-07-19 21:30:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:52,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:52,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:30:52,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792530590] [2020-07-19 21:30:52,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:30:52,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-19 21:30:52,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117645673] [2020-07-19 21:30:52,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-19 21:30:52,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:30:52,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-19 21:30:52,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-19 21:30:52,527 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 10 states. [2020-07-19 21:30:53,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:30:53,024 INFO L93 Difference]: Finished difference Result 81 states and 93 transitions. [2020-07-19 21:30:53,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-19 21:30:53,026 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-07-19 21:30:53,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:30:53,039 INFO L225 Difference]: With dead ends: 81 [2020-07-19 21:30:53,039 INFO L226 Difference]: Without dead ends: 62 [2020-07-19 21:30:53,043 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 [2020-07-19 21:30:53,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-07-19 21:30:53,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2020-07-19 21:30:53,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-07-19 21:30:53,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2020-07-19 21:30:53,101 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 26 [2020-07-19 21:30:53,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:30:53,103 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2020-07-19 21:30:53,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-19 21:30:53,104 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2020-07-19 21:30:53,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-19 21:30:53,106 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:30:53,107 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] [2020-07-19 21:30:53,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 21:30:53,107 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:30:53,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:30:53,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1817820821, now seen corresponding path program 1 times [2020-07-19 21:30:53,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:30:53,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058412958] [2020-07-19 21:30:53,109 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4d74abab [2020-07-19 21:30:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:53,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:53,435 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-19 21:30:53,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058412958] [2020-07-19 21:30:53,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:30:53,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-19 21:30:53,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331833338] [2020-07-19 21:30:53,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-19 21:30:53,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:30:53,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-19 21:30:53,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-19 21:30:53,440 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand 10 states. [2020-07-19 21:30:54,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:30:54,012 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2020-07-19 21:30:54,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-19 21:30:54,013 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2020-07-19 21:30:54,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:30:54,016 INFO L225 Difference]: With dead ends: 79 [2020-07-19 21:30:54,017 INFO L226 Difference]: Without dead ends: 70 [2020-07-19 21:30:54,019 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 [2020-07-19 21:30:54,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-07-19 21:30:54,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2020-07-19 21:30:54,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-19 21:30:54,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2020-07-19 21:30:54,060 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 37 [2020-07-19 21:30:54,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:30:54,060 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2020-07-19 21:30:54,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-19 21:30:54,061 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2020-07-19 21:30:54,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-19 21:30:54,065 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:30:54,066 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] [2020-07-19 21:30:54,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 21:30:54,069 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:30:54,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:30:54,069 INFO L82 PathProgramCache]: Analyzing trace with hash -759518161, now seen corresponding path program 1 times [2020-07-19 21:30:54,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:30:54,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827770165] [2020-07-19 21:30:54,070 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4d74abab [2020-07-19 21:30:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:30:54,322 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-19 21:30:54,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827770165] [2020-07-19 21:30:54,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:30:54,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 21:30:54,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387370042] [2020-07-19 21:30:54,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 21:30:54,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:30:54,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 21:30:54,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:30:54,326 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand 8 states. [2020-07-19 21:30:54,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:30:54,711 INFO L93 Difference]: Finished difference Result 80 states and 84 transitions. [2020-07-19 21:30:54,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-19 21:30:54,711 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-07-19 21:30:54,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:30:54,713 INFO L225 Difference]: With dead ends: 80 [2020-07-19 21:30:54,714 INFO L226 Difference]: Without dead ends: 68 [2020-07-19 21:30:54,714 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 [2020-07-19 21:30:54,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-19 21:30:54,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-07-19 21:30:54,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-19 21:30:54,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2020-07-19 21:30:54,726 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 51 [2020-07-19 21:30:54,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:30:54,727 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2020-07-19 21:30:54,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 21:30:54,727 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2020-07-19 21:30:54,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-19 21:30:54,729 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:30:54,729 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] [2020-07-19 21:30:54,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 21:30:54,730 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:30:54,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:30:54,730 INFO L82 PathProgramCache]: Analyzing trace with hash -501352723, now seen corresponding path program 1 times [2020-07-19 21:30:54,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:30:54,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556129887] [2020-07-19 21:30:54,731 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4d74abab [2020-07-19 21:30:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 21:30:54,757 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 21:30:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 21:30:54,778 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 21:30:54,824 INFO L174 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2020-07-19 21:30:54,825 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 21:30:54,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 21:30:54,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 09:30:54 BoogieIcfgContainer [2020-07-19 21:30:54,883 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 21:30:54,887 INFO L168 Benchmark]: Toolchain (without parser) took 4041.29 ms. Allocated memory was 137.4 MB in the beginning and 250.1 MB in the end (delta: 112.7 MB). Free memory was 100.7 MB in the beginning and 126.2 MB in the end (delta: -25.5 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2020-07-19 21:30:54,888 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.4 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 21:30:54,889 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.20 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 100.5 MB in the beginning and 180.2 MB in the end (delta: -79.7 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-07-19 21:30:54,890 INFO L168 Benchmark]: Boogie Preprocessor took 48.81 ms. Allocated memory is still 201.3 MB. Free memory was 180.2 MB in the beginning and 177.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-19 21:30:54,890 INFO L168 Benchmark]: RCFGBuilder took 500.41 ms. Allocated memory is still 201.3 MB. Free memory was 177.8 MB in the beginning and 153.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-07-19 21:30:54,891 INFO L168 Benchmark]: TraceAbstraction took 3095.66 ms. Allocated memory was 201.3 MB in the beginning and 250.1 MB in the end (delta: 48.8 MB). Free memory was 153.7 MB in the beginning and 126.2 MB in the end (delta: 27.5 MB). Peak memory consumption was 76.3 MB. Max. memory is 7.1 GB. [2020-07-19 21:30:54,896 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.4 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 389.20 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 100.5 MB in the beginning and 180.2 MB in the end (delta: -79.7 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 48.81 ms. Allocated memory is still 201.3 MB. Free memory was 180.2 MB in the beginning and 177.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 500.41 ms. Allocated memory is still 201.3 MB. Free memory was 177.8 MB in the beginning and 153.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3095.66 ms. Allocated memory was 201.3 MB in the beginning and 250.1 MB in the end (delta: 48.8 MB). Free memory was 153.7 MB in the beginning and 126.2 MB in the end (delta: 27.5 MB). Peak memory consumption was 76.3 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; VAL [\old(freed_tmp_slot)=26, \old(tmp_slot)=19, \old(tmp_slot)=22, \old(used_tmp_slot)=23, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L136] CALL ebda_rsrc_controller() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L73] struct hotplug_slot *hp_slot_ptr; [L75] struct bus_info *bus_info_ptr1; [L76] int rc; VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L78] CALL, EXPR kzalloc(sizeof(*hp_slot_ptr), 1) VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=8, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L47] EXPR, FCALL calloc(1, size) VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=8, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, calloc(1, size)={-1:0}, flags=1, freed_tmp_slot=1, size=8, tmp_slot={0:0}, used_tmp_slot=0] [L47] return calloc(1, size); VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=8, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, \result={-1:0}, calloc(1, size)={-1:0}, flags=1, freed_tmp_slot=1, size=8, tmp_slot={0:0}, used_tmp_slot=0] [L78] RET, EXPR kzalloc(sizeof(*hp_slot_ptr), 1) VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, kzalloc(sizeof(*hp_slot_ptr), 1)={-1:0}, tmp_slot={0:0}, used_tmp_slot=0] [L78] hp_slot_ptr = kzalloc(sizeof(*hp_slot_ptr), 1) [L79] COND FALSE !(!hp_slot_ptr) [L83] hp_slot_ptr->b = 5 VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, hp_slot_ptr={-1:0}, tmp_slot={0:0}, used_tmp_slot=0] [L85] CALL, EXPR kzalloc(sizeof(*tmp_slot), 1) VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=16, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L47] EXPR, FCALL calloc(1, size) VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=16, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, calloc(1, size)={-2:0}, flags=1, freed_tmp_slot=1, size=16, tmp_slot={0:0}, used_tmp_slot=0] [L47] return calloc(1, size); VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=16, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, \result={-2:0}, calloc(1, size)={-2:0}, flags=1, freed_tmp_slot=1, size=16, tmp_slot={0:0}, used_tmp_slot=0] [L85] RET, EXPR kzalloc(sizeof(*tmp_slot), 1) VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, hp_slot_ptr={-1:0}, kzalloc(sizeof(*tmp_slot), 1)={-2:0}, tmp_slot={0:0}, used_tmp_slot=0] [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 VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, hp_slot_ptr={-1:0}, tmp_slot={-2:0}, used_tmp_slot=0] [L98] CALL, EXPR ibmphp_find_same_bus_num() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={-2:0}, used_tmp_slot=0] [L56] COND TRUE __VERIFIER_nondet_int() [L57] return 0; VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, \result={0:0}, freed_tmp_slot=0, tmp_slot={-2:0}, used_tmp_slot=0] [L98] RET, EXPR ibmphp_find_same_bus_num() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, hp_slot_ptr={-1:0}, ibmphp_find_same_bus_num()={0:0}, tmp_slot={-2:0}, used_tmp_slot=0] [L98] bus_info_ptr1 = ibmphp_find_same_bus_num() [L99] COND TRUE !bus_info_ptr1 [L100] rc = -3 VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, bus_info_ptr1={0:0}, freed_tmp_slot=0, hp_slot_ptr={-1:0}, rc=-3, tmp_slot={-2:0}, used_tmp_slot=0] [L127] EXPR hp_slot_ptr->private VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, bus_info_ptr1={0:0}, freed_tmp_slot=0, hp_slot_ptr={-1:0}, hp_slot_ptr->private={0:0}, rc=-3, tmp_slot={-2:0}, used_tmp_slot=0] [L127] CALL kfree(hp_slot_ptr->private) VAL [\old(freed_tmp_slot)=0, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, p={0:0}, tmp_slot={-2:0}, used_tmp_slot=0] [L50] COND FALSE !(p!=0 && p==tmp_slot) VAL [\old(freed_tmp_slot)=0, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, p={0:0}, p={0:0}, tmp_slot={-2:0}, used_tmp_slot=0] [L127] RET kfree(hp_slot_ptr->private) VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, bus_info_ptr1={0:0}, freed_tmp_slot=0, hp_slot_ptr={-1:0}, hp_slot_ptr->private={0:0}, rc=-3, tmp_slot={-2:0}, used_tmp_slot=0] [L132] return rc; VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, \result=-3, bus_info_ptr1={0:0}, freed_tmp_slot=0, hp_slot_ptr={-1:0}, rc=-3, tmp_slot={-2:0}, used_tmp_slot=0] [L136] RET ebda_rsrc_controller() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, ebda_rsrc_controller()=-3, freed_tmp_slot=0, tmp_slot={-2:0}, used_tmp_slot=0] [L137] COND TRUE !used_tmp_slot VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={-2:0}, used_tmp_slot=0] [L138] (freed_tmp_slot) ? (0) : __blast_assert () VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={-2:0}, used_tmp_slot=0] [L138] CALL __blast_assert () VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={-2:0}, used_tmp_slot=0] [L7] __VERIFIER_error() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={-2:0}, used_tmp_slot=0] - 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, 0.8s 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...